Chargers & Cables - Chargerlab

Teardown of ANKER 253W GaN Power Adapter (A91B2-Adapter)

Rusell — Mon, 12 May 2025 02:37:47 +0000

Introduction

Not long ago, ChargerLAB got a charging station A91B2 from the well-known brand ANKER. In addition to two AC slots, it is also equipped with six USB ports, and four of the USB-C ports support 140W PD3.1 fast charging, with a total output power of up to 240W.

Not only that, it also innovatively integrates AC and DC power supplies into the included power adapter. This makes its design different from similar products on the market. Next, take its 253W power adapter apart to see its internal components and structure.

Product Appearance

The packaging of the ANKER 240W 8-in-1 charging station contains the charging station, the 253W power adapter, and some documents.

The design style of this power adapter is simple. The DC output end comes with a cable, but the connector is a special plug.

The power adapter has a bumpy texture on its surface.

ANKER is engraved in the center of the front.

The top is decorated with a bright panel, and there is a light ring on the side close to the output end to indicate whether it is powered on.

It also has a surge protection indicator light on the front.

The spec info is printed on the bottom.

Model: A91B2-Adapter

AC Input: 100-125V~50/60Hz 13A

DC Output: 29.5V8.55A (253W Max)

It has passed PSE certification.

It adopts fixed input pins.

The connection between the body and the cable is protected by a rubber sleeve.

The output connector adopts a special design, which can provide 29.5V8.55A DC output and AC output.

The length of the power adapter is about 103.09 mm (4.059 inches).

The height is about 78.15 mm (3.077 inches).

The width is about 32.28 mm (1.27 inches).

The length of the output cable is about 156 cm (5 feet 1.417 inches).

That's how big it is in the hand.

The weight is about 589.6 g (20.8 oz).

Teardown

Next, let's take it apart to see its internal components and structure.

First, pry along the gap to open the input end cover.

The input pins are reinforced and protected by a plastic frame.

Take out the PCBA module, and there is a light guide on the inside of the case.

The length of the PCBA module is about 96.91 mm (3.82 inches).

The width is about 71.95 mm (2.83 inches).

The thickness is about 27.56 mm (1.085 inches).

The PCBA module is covered with a heat sink, and the heat sink and the PCBA module are insulated with Mylar sheets.

Remove the heat sink. The components on the front of the PCBA module are filled with potting compounds to help dissipate heat.

The components on the back are also filled with potting compounds to help dissipate heat.

Clean off the potting compound. The front of the PCBA module includes components such as a bridge rectifier, PFC MOSFET, primary MOSFET, and synchronous rectifier. All of them are equipped with heat sinks to help dissipate heat and thermistors for temperature detection.

On the back are components such as a master control chip, synchronous rectifier controller, synchronous rectifier, optocoupler, etc.

The input pins are soldered on a separate PCB. There is an SMD Y capacitor in the middle of this side. On the right is the electrolytic capacitor for input filtering, wrapped with heat-resistant tape for protection.

Take off the PCB of the pins, there is a varistor, thermal fuse, Y capacitor, and indicator light on the back.

The SMD Y capacitor is from KeiFat.

The blue Y capacitor is from DGCX.

The varistor is from SET. It is an SFV14D series and is used for surge overvoltage protection. 470V. Model is SFV14D471K.

The thermal fuse is also from SET. It is a Y2 series 115℃ thermal fuse, used to detect the temperature rise of the varistor and provide overheat protection.

Here is the indicator light.

This side of the PCBA module has common mode inductors, safety X2 capacitor, and bridge rectifier.

Remove the bridge rectifiers and heat sink. The two bridge rectifiers are fixed on both sides of the heat sink by screws.

The common mode inductor is used to filter out EMI interference. This one is wound with two wires.

The other is wound with flat copper tape.

The safety X2 capacitor is from DGCX. 0.47μF.

The two bridge rectifiers are from Pingwei and adopt GBU package. 15A 1000V. Model is GBU1510.

This end of the module is equipped with film capacitor, PFC boost inductor, resonant inductor, and resonant capacitor.

Remove another heat sink, with the PFC MOSFET and PFC rectifier fixed on it.

These two MPP film capacitors are also from DGCX. 1μF 450V.

The filter inductor is insulated by heat-shrinkable tubing.

The master control chip is from MPS. It adopts critical and discontinuous mixed-mode PFC control with the current mode, which can be configured through the UART interface. It has built-in power-saving technology to help achieve efficiency optimization in the whole working range. It has built-in high voltage startup and X capacitor discharge and supports PG signal output. Model is HR1275.

The PFC boost MOSFET is from GaNext and adopts TO-220 package. It has a withstand voltage of 650V and a resistance of 92mΩ. Model is G1N65R092TA-H.

The PFC boost inductor adopts the ATQ28 core.

The PFC rectifier is from YJ and adopts ITO-220AB package. 600V 10A. Model is MUR1060FCT.

The electrolytic capacitor for input filtering is from Sancon. 450V 150μF.

Here is the resonant inductor.

The resonant capacitor is from DGCX. 0.047μF 630V.

This side of the module is equipped with planar transformer, power supply capacitor for the master control chip, solid capacitor for output filtering, filter inductor, and other components.

Remove the third heat sink, with two LLC half-bridge MOSFETs fixed on it.

The LLC half-bridge MOSFET is from Silan and adopts TO-220FJD-3L package. It has a withstand voltage of 600V and a resistance of 0.165Ω. Model is SVS60R190FJDD4.

The second LLC half-bridge MOSFET is identical to the first one.

The power supply capacitor for the master control chip is also from Sancon. 35V 220μF.

Here is the planar transformer.

The blue Y capacitor is from DGCX.

The SMD Y capacitor is from TRX. Its small size and light weight are suitable for high-density power products such as GaN fast chargers.

These two optocouplers marked with 1018 are used for output voltage feedback and protection functions.

This is the third optocoupler.

The synchronous rectifier controller is from MPS. It has stronger anti-interference and fast shutdown function and is compatible with CCM/DCM mode. It integrates two synchronous rectifier controllers, which are used for the rectification application of the two secondary coil outputs of LLC, and is suitable for LLC converter synchronous rectification application. Model is MP6924A.

The synchronous rectifier is marked with S6808.

The other synchronous rectifier is also marked with S6808.

These two solid capacitors for output filtering are from Polycap. 35V 820μF.

The filter inductor is insulated by heat-shrinkable tubing.

The Op-Amp is from 3PEAK. Model is TPA7252.

Here is the thermistor.

Here is the indicator light.

Well, those are all components of the ANKER 253W GaN Power Adapter.

Summary of ChargerLAB

Here is the component list of the ANKER 253W GaN Power Adapter for your convenience.

The design of the Anker 253W GaN power adapter continues its style and is equipped with an indicator light for surge protection and a light ring to indicate whether it is powered on, enhancing the user experience. Because of its unique output connector, it can provide AC or DC power supply.

After taking it apart, we found it adopts a PFC+LLC+SR power supply architecture design. There are many heat sinks inside, the PCBA module is filled with potting compound and covered with a large heat sink to help dissipate heat. The workmanship and materials are solid and reliable.

Teardown of ANKER 253W GaN Power Adapter

Rusell — Sun, 11 May 2025 01:00:00 +0000

https://youtu.be/sd4u1dUeY5A

If you wanna buy the tester of ChargerLAB POWER-Z, you can visit our Amazon store:
United States: Click here
Deutschland: Click here
United Kingdom: Click here
France: Click here

Introduction
---------------------------------------------------------------
Not long ago, ChargerLAB got a charging station A91B2 from the well-known brand ANKER. In addition to two AC slots, it is also equipped with six USB ports, and four of the USB-C ports support 140W PD3.1 fast charging, with a total output power of up to 240W.

Not only that, it also innovatively integrates AC and DC power supplies into the included power adapter. This makes its design different from similar products on the market. Next, take its 253W power adapter apart to see its internal components and structure.

Teardown of ANKER 150W 4 USB-C Ports GaN Charger

Rusell — Wed, 16 Apr 2025 01:21:23 +0000

If you wanna buy the tester of ChargerLAB POWER-Z, you can visit our Amazon store:
United States: Click here
Deutschland: Click here
United Kingdom: Click here
France: Click here

Introduction
---------------------------------------------------------------
ChargerLAB got a super-performance GaN charger, launched by the well-known brand ANKER. The product is available on the Apple Store. It has four USB-C output ports, and the USB-C1 port supports 140W PD3.1. The other three ports also support an output power of 100W and the total output power of multiple ports can reach 150W, which can charge multiple devices at the same time.

Teardown of Motorola 50W Charger

Rusell — Thu, 03 Apr 2025 01:38:00 +0000

If you wanna buy the tester of ChargerLAB POWER-Z, you can visit our Amazon store:
United States: Click here
Deutschland: Click here
United Kingdom: Click here
France: Click here

Introduction
---------------------------------------------------------------
ChargerLAB got a 50W charger from Motorola. The biggest advantage of this charger is that it is equipped with a USB-A and a USB-C port, which can charge two devices at the same time. It looks ordinary and is fitted with a European plug. Next, let's take it apart to see its internal components and structure.

Bill of materials (BOM)
------------------------------------------
Model: MC-507
bridge rectifier: YJ HYBS3010A
master control chip: PI INN3368C
synchronous rectifier: Vergiga VSP004N10MS-G
synchronous buck converter: Eutech EUP3270
protocol chip: INJOINIC IP2726

Teardown of Motorola 50W Charger (MC-507)

Rusell — Tue, 01 Apr 2025 02:01:06 +0000

Introduction

ChargerLAB got a 50W charger from Motorola. The biggest advantage of this charger is that it is equipped with a USB-A and a USB-C port, which can charge two devices at the same time. It looks ordinary and is fitted with a European plug. Next, let's take it apart to see its internal components and structure.

Product Appearance

The charger's shell is frosted and anti-fingerprint.

The Motorola logo is engraved on the front.

There is a bright 50 on the back, indicating the maximum output power of the charger.

The specs info is printed on the side.

Model: MC-507

Input: 100-240V~50/60Hz 2A

Single Port Output:

USB-C: 5V3A、9V3A、15V3A、20V2.5A 50W MAX

USB-A: 5V3A、9V2A、12V1.67A 20W MAX

Dual Port Output:

USB-C: 5V3A、9V3A、15V2.5A、20V2A 40W MAX

USB-A: 5V2A 10W MAX

It has passed Level VI energy efficiency certification.

Here is the European plug.

The plastic sheets of the USB-A and USB-C ports are black.

The length is about 58.46 mm (2.3 inches).

The width is about 43.55 mm (1.71 inches).

The thickness is about 29.05 mm (1.14 inches).

It is much smaller than the Apple 61W charger.

That's how big it is in the hand.

The weight is about 112.7 g (3.98 oz).

ChargerLAB POWER-Z KM003C shows the USB-C port can support PD3.0, PPS, QC4, and DCP charging protocols.

And it has four fixed PDOs of 5V3A, 9V3A, 15V3A, 20V2.5A, and a set of PPS, which is 3.3-11V5A.

Our tester shows the USB-A port can support QC3.0, DCP, and Apple 2.4A charging protocols.

Teardown

Next, let's take it apart to see its internal components and structure.

First, pry along the gap to open the input cover. The PCBA module is connected to the plug through wires.

Remove the PCBA module. Its length is about 54.56 mm (2.15 inches).

The width is about 39.71 mm (1.56 inches).

The thickness is about 24.32 mm (0.96 inches).

The PCBA module is wrapped with heat sinks, and the gaps between components are filled with potting compounds for reinforcement.

There is a Mylar sheet between the heat sink and the PCB on the back for insulation.

Remove the heat sinks and there is a thermal pad on the transformer.

There is also a thermal pad on the area corresponding to the bridge rectifier and the master control chip to help with heat conduction.

The input end has an NTC thermistor, a common mode choke, electrolytic capacitors, and other components. The output end has a separate small PCB.

There are two bridge rectifiers and a master control chip on the back.

The fuse, NTC thermistor, and common mode choke are all insulated by heat-shrinkable tubing.

Here is the fuse. 5A 250V.

The green NTC thermistor is used to suppress the power-on surge current.

The common mode choke is used to filter out EMI interference.

These two bridge rectifiers are from YJ and adopt the YBS package. 3A 1000V. Model is HYBS3010A.

These two electrolytic capacitors are from SAMXON. 15μF 400V.

This is the I-shaped filter inductor.

This side also has two electrolytic capacitors, a ferrite bead, and a blue Y capacitor.

These two electrolytic capacitors are from ChegnX. 27μF 400V.

The ferrite bead is used to suppress high-frequency interference.

On the other side of the PCB there is a capacitor that powers the master control chip, a transformer, and a synchronous rectifier solid capacitor.

The master control chip is from PI. It is the InnoSwitch3-Pro series, a digitally controlled constant voltage/constant current offline flyback quasi-resonant switch IC that integrates a high-voltage switch, synchronous rectification, and FluxLink feedback functions, with a very high integration level. It is suitable for high-efficiency USB PD 3.0 + PPS/QC adapters. Under a wide voltage range, it can output 50W power in a sealed housing and can output higher power when used with PFC. Model is INN3368C.

The capacitor that powers the master control chip is from SAMXON. 10μF 100V.

Here is the transformer.

The blue Y capacitor marked with CD221K is from STE.

The output end is soldered to a separate small PCB.

Remove the small PCB and you can see a synchronous rectifier between the two solid capacitors.

The synchronous rectifier is from Vergiga and adopts the PDFN5060X package. The withstand voltage is 100V and the resistance is 3.8mΩ. Model is VSP004N10MS-G.

Here is the information about Vergiga VSP004N10MS-G.

Here is the solid capacitor for output filtering. 820μF 25V.

Here is another solid capacitor. 560μF 25V.

The front of the small PCB at the output end has components such as protocol chip, synchronous buck converter, buck inductor, solid capacitor for output filtering, and VBUS MOSFET.

There are small devices such as capacitors and resistors on the back.

The synchronous buck converter is from Eutech and adopts the SOP-8 (EP) package. It supports an input voltage range of 4.5V-30V, supports pass-through mode, has a built-in MOSFET on the chip, and supports a maximum output current of 4A. Model is EUP3270.

Here is the buck inductor.

The solid capacitor is used for secondary buck output filtering of the USB-A port. 180μF 16V.

The protocol chip is from INJOINIC. It integrates multiple protocols and supports Type-C DFP, PD2.0/3.0, PPS, QC4+, QC2.0/3.0, FCP, AFC, SCP, MTK PE+, Apple2.4A, BC1.2 and Samsung 2A. With high integration and rich functions, it can effectively reduce the size of the overall solution and reduce BOM cost. Model is IP2726.

Here is the information about INJOINIC IP2726.

The USB-C output VBUS MOSFET is marked with 050N03B.

The USB-A output VBUS MOSFET is marked with 1233-AG.

Well, those are all components of the Motorola 50W charger.

Summary of ChargerLAB

Here is the component list of the Motorola 50W charger for your convenience.

The Motorola 50W charger has a simple design, with the brand logo and the number 50 on the front and back. It is equipped with USB-A and UAB-C output ports and is compatible with the two universal fast charging protocols, QC3.0 and PD3.0. The USB-C port also supports PPS, with maximum output power of 20W and 50W, respectively, meeting the charging needs of two devices at the same time.

After taking it apart, we found it adopts a PI master control chip and Vergiga synchronous rectifier. It adopts the INJOINIC protocol chip used to control the output of the two ports. The PCBA module has been adequately heat-dissipated and insulated and is well-made.

Teardown of ANKER 150W 4 Ports GaN Charger (A2655)

Rusell — Mon, 03 Feb 2025 01:00:00 +0000

Introduction

Recently, ChargerLAB got a super-performance GaN charger, A2655, launched by the well-known brand ANKER. The product is now available on the Apple Store. It has four USB-C output ports, and the USB-C1 port supports 140W PD3.1, and the other three ports also support an output power of 100W.

Not only that, the total output power of multiple ports can reach 150W, which can meet the simultaneous fast charging needs of multiple devices such as MacBook, iPad, iPhone, Apple Watch, etc. Next, let's take it apart to see its internal components and structure.

Product Appearance

ANKER, product appearance, name, and selling points are printed on the front of the box.

The back is also printed with selling points and application scenarios for charging laptops, phones, and headphones at the same time.

The specs info is printed on the side.

We'll talk about it later.

The box contains the charger and some documents.

The shell is made of white PC flame-retardant material with a matte surface treatment, which feels delicate and is anti-fingerprint.

ANKER is printed on the front center.

The spec info is printed on the input panel.

Model is A2655. It can support input of 100-240V~50/60Hz 2.3A. The USB-C1 can support output of 5V3A, 9V3A, 15V3A, 20V5A, and 28V5A, 140W Max. The USB-C2/C3/C4 can support 5V3A, 9V3A, 15V3A, and 20V5A, 100W Max. The maximum output power is 150W.

It comes with a foldable plug.

The plastic sheets of the four USB-C ports are all blue.

The length is about 62.87 mm (2.48 inches).

The width is about 75.23 mm (2.96 inches).

The thickness is about 31 mm (1.22 inches).

Compared with the Apple 140W charger, it has an obvious size advantage.

That's how big it is in the hand.

The weight is about 306 g (10.79 oz).

ChargerLAB POWER-Z KM003C shows the USB-C1 can support PD3.1, DCP, and Apple 2.4A charging protocols.

And it has five fixed PDOs of 5V3A, 9V3A, 15V3A, 20V5A, and 28V5A. It also has a set of AVS, which is 15-28V 140W.

ChargerLAB POWER-Z KM003C shows the USB-C2 can support PD3.0, DCP, and Apple 2.4A charging protocols.

And it has four fixed PDOs of 5V3A, 9V3A, 15V3A, and 20V5A.

The protocols compatible with USB-C3 are the same as those of USB-C2.

So as the PDOs.

It is measured that the compatible protocols of the USB-C4 port are the same as those of the previous two ports.

So as the PDOs. The performance of USB-C2, USB-C3, and USB-C4 ports is the same.

Teardown

Next, let's take it apart to see its internal components and structure.

Remove the input end shell, the shell is ultrasonically welded, and the plug is fixed with a black plastic shell and screws.

The interior of the charger is filled with potting compound to improve heat dissipation.

Take out the PCBA module. There are copper plates and aluminum foils stuck on the inside of the case to help dissipate heat. At the same time, high-temperature-resistant insulating tape is also attached.

There are copper plates and aluminum foils.

The length of the PCBA module is about 58.17 mm (2.29 inches).

The width is about 69.66 mm (2.74 inches).

The thickness is about 24.26 mm (0.96 inches).

The front and back sides of the PCBA module are covered with gray potting compounds.

After cleaning up the potting compound, the components on the front of the PCBA are very compactly arranged. The PFC boost inductor is also covered with a heat sink, and the transformer, capacitors, and other components are all wrapped with insulating tape.

The back of the PCBA is equipped with a PFC controller, PFC MOSFET, optocoupler, SMD Y capacitor, and MCU.

There are three small PCBs at the input end of the PCBA module. The small PCB in the middle is equipped with a time delay fuse, common mode choke, and safety X2 capacitor. The left area has high-voltage filter electrolytic capacitors, and the right side has another common mode choke, safety X2 capacitor, and two bridge rectifiers.

Remove the small PCB at the input end and find the time delay fuse on the front covered with a white rubber sleeve for insulation protection.

The time delay fuse is from Betterfuse. 5A 250V.

The common mode choke is wound with double wires to filter out EMI interference.

The safety X2 capacitor on the back is from DGCX. 0.1μF.

The secondary common mode choke on the PCBA is insulated by heat-shrinkable tubing.

The other grey safety X2 capacitor is also from DGCX. 0.33μF.

The two bridge rectifiers are attached together and covered with a U-shaped heat sink, which is then wrapped with insulating tape.

The two bridge rectifiers are from PY and adopt D3K package. Model is D8KBR10A. 8A 1000V.

There is also a PFC boost inductor on one side of the PCBA module and a film filter capacitor on the small PCB on the side.

Remove the small PCB. There is a film filter capacitor and a filter inductor on the other side.

The MPP film filter capacitor is also from DGCX. 1μF 450V.

The other thin film filter capacitor is of the same model.

This is the filter inductor.

The PFC controller is from SouthChip. Model is SC3202.

The PFC MOSFET is from CorEnergy and adopts DFN8*8 package. This cascode CoreGaN device uses CorEnergy depletion process technology, with a withstand voltage of 650V, a transient withstand voltage of 800V, and an on-resistance of 110mΩ. It has an extremely low gate charge, which makes the device switch fast and has low loss, which can greatly improve the system's energy efficiency. Its gate drive voltage range is ±20V, which greatly improves system reliability, is compatible with traditional silicon MOS drivers and simplifies circuit design. Model is CE65H110DNDI.

Here is the information about CorEnergy CE65H110DNDI.

The PFC boost inductor uses ATQ25 magnetic core and is wrapped with copper heat sinks on three sides, which greatly enhances the heat dissipation performance and EMI shielding effect.

The PFC synchronous rectifier is from PCsemic. Model is PCDF10S65C1P.

On the other side of the PCBA module, there are resonant capacitors and a master control chip on the small PCB. The resonant capacitor is wrapped with insulating tape, and on the left side, there are three solid capacitors for output filtering and a filter inductor, of which the larger solid capacitor is also wrapped with insulating tape.

The two blue high-voltage filter electrolytic capacitors are from YMIN. 420V 56μF.

The switching power supply master chip is from DK. Model is DK3715AD.

The resonant capacitor is also from DGCX. 0.47μF 250V.

The capacitor that powers the master control chip is from YMIN. 63V 22μF.

The transformer uses ATQ27 magnetic core.

The Everlight EL 1019 optocoupler is used for output voltage feedback.

Another same optocoupler.

The two SMD Y capacitors are from KeiFat.

This is another SMD Y capacitor.

The blue Y capacitor is from DGCX.

The transformer is connected to the synchronous rectifier small PCB and wrapped together with tape.

There is a synchronous rectifier controller on the front of the small PCB.

There are two synchronous rectifiers on the other side.

The synchronous rectifier controller marked with IBHJP is from MPS. Model is MP6908A.

The two synchronous rectifiers marked with G100N045G are from HRmicro.

The solid capacitor for output filtering is also from YMIN. 35V 220μF.

Another solid capacitor is wrapped with insulating tape. 35V 680μF.

This is the third solid capacitor. 35V 220μF.

This is the filter inductor.

The MCU is from CHIPSEA. It is used for the intelligent distribution of multi-port output power. Model is CS32L015.

The output small PCB is also covered with potting compound, the sockets are protected, and there is a thermistor on the PCBA module.

Remove the small PCB and clean the potting compound. On the front, there are buck inductors of the four secondary buck circuits and secondary filter solid capacitors.

On the back, there are buck protocol chips with four secondary buck circuits, synchronous buck MOSFEs, and output VBUS MOSFETs. The four circuits are independent of each other.

The thermistor is used to monitor the internal temperature of the charger.

The secondary step-down circuit control chip of the USB-C1 port is from iSmartWare. Model is SW3566S.

The two synchronous buck MOSFETs and the output VBUS MOSFET are from ALLEPIC. Model is AER4051BP.

This is the step-down inductor. 4.7μH.

The secondary step-down solid capacitor for output filtering at the USB-C1 port is also from YMIN. 35V 220μF.

The other three USB-C ports have the same secondary step-down circuit schemes, and one of them is used as an example for demonstration.

The step-down protocol chips of the USB-C2/3/4 port are all from iSmartWare. Model is SW3561S.

The two synchronous buck MOSFETs and the output VBUS MOSFET of the three power components are also from ALLEPIC. Model is AER4051BP.

These are the buck inductors of the three buck circuits.

The three secondary filter solid capacitors are also from YMIN. 25V 220μF.

These are four USB-C sockets.

Well, those are all components of the ANKER 150W 4 Ports GaN Charger.

Summary of ChargerLAB

Here is the component list of the ANKER 150W 4 Ports GaN Charger for your convenience.

Its design style is simple, and the shell is made of PC flame-retardant material, which is safe and reliable. The surface is matte and feels very good to the touch. Compared with competing products on the market, its biggest feature is that each interface can support high-power fast charging of more than 100W, and the performance is quite impressive.

As an Apple-exclusive version, the only compatible protocol is PD fast charging. However, compared with Apple's original 140W GaN fast charging, it has advantages in size, number of ports, and performance. It is very suitable for Apple multi-device users to purchase and is suitable for daily home office and travel use.

After taking it apart, we found it uses PFC+AHB power architecture design. In addition, the PCBA module is filled with potting compound to improve heat dissipation, and heat sinks are added to the bridge rectifier, PFC boost inductor, and even the shell to help dissipate heat. Whether it is the overall or the details, the materials and workmanship of this product by Anker are quite good.

Teardown of Tesla Wireless Phone Charger (WC5)

Rusell — Sat, 01 Feb 2025 01:00:00 +0000

Introduction

ChargerLAB got the wireless phone charger WC5 for the Tesla Model 3. The surface of this wireless charging module is covered with flocking material, which is soft and non-slip. There are two charging positions that support 15W wireless charging. It uses an aluminum alloy shell to enhance heat dissipation. The tilted angle of its charging panel makes it easy to place and view the phone, improving driving safety. The wireless charging module is integrated with the vehicle interior and looks beautiful. Next, let's take it apart to see its internal components and structure.

Product Appearance

The Tesla wireless phone charger is dark gray, with leather edges and flocking material in the middle.

The overall shape is an inverted trapezoid.

Close-up of the flocked panel.

Close-up of the bump used to locate the phone.

There are fixing screws on both sides and the middle of the aluminum alloy shell.

Model is WC5. It can support input of 13.5V 4A. The maximum output is 15W, respectively.

Close-up of the opening used to secure the aluminum alloy shell.

There are also clips to fix the aluminum alloy shell.

The aluminum alloy shell is fixed by screws.

Close-up of the connector used to connect to the vehicle's power supply.

The panel is internally joined by heat fusion.

The bottom is equipped with sealed foam.

There are tonal stitching on the sides.

The top width is about 30 cm (11.81 inches).

The height is about 23.3 cm (9.17 inches).

That's how big it is in the hand.

The weight is about 766.6 g (27.041 oz).

Teardown

Next, let's take it apart to see its internal components and structure.

First, unscrew the fixing screws of the aluminum alloy shell and remove the panel.

The shielding plate is fixed by stamping, and there is an NFC coil in the area corresponding to the wireless charging.

The shield plate is printed with TESLA.

Remove the shielding plate, there is a metal shielding cover and wireless charging coils inside.

There is cushioning foam and NFC coil contacts on the back of the shield.

The metal shielding cover has a hole to expose the NFC coil contacts.

Buffer foam is arranged inside the shielding cover and the shielding plate.

Remove the shielding cover and the PCBA module is fixed with screws.

There are two wireless charging coils on the left and right.

Each charging position has two coils stacked together to increase the charging area.

The welding points of the wireless charging coil are full and round.

The leads of the coil are fixed by a plastic bracket.

The PCBA module is fixed with screws.

Unscrew the fixing screws of the PCBA module.

There are pink potting compounds at the location of the heat-generating components, which dissipate heat through the aluminum alloy shell.

One side of the PCBA module is soldered with the wireless charging master control chip, NFC communication chip, MCU, and LIN and CAN communication chip.

The other side of the PCBA module has a power socket, a synchronous buck converter, two wireless charging power stage chips, a buck inductor, and a filter capacitor.

This is the power supply connector.

The input TVS marked with CK is from BrightKing and adopts DO-214AA package. It is a bidirectional TVS with a reverse cutoff voltage of 30V. Model is SMBJ30CA.

This is the filter inductor. 2.2μH.

The MOSFET for power input isolation is from DIODES and marked with H29. It has a withstand voltage of -40V, a resistance of 18mΩ, an operating temperature of 175°C, and meets the AEC-Q101 standard. It adopts PowerDI3333-8 package. Model is DMPH4029LFGQ.

There is the filter capacitor. 35V.

The step-down chip marked with 4215FA is from TI and adopts VQFN-HR package. It is an automotive-grade synchronous buck converter that meets the AEC-Q100 standard, supports -40~125℃ ambient temperature, and has an internal integrated MOSFET. 42V 1.5A. Model is LMR34215FA.

This is the alloy inductor used with it. 10μH.

The voltage regulator chip marked with SLY is from TI and adopts SON-8 package. It supports 1A output current and meets AEC-Q100 standard. Model is TPS7A8101-Q1.

The wireless charging controller is from NXP and adopts LQFP64 package. It complies with the AEC-Q100 standard, has two built-in digital demodulation modules, supports wireless charging of two mobile phones at the same time, and has CAN FD/I2C/SCI/SPI interfaces. Model is MWCT22C3AVLH.

This is an external SMD clock crystal.

The synchronous buck chip is from MPS and adopts QFN-21 package. It is a dual-channel synchronous buck converter. The chip supports 36V input voltage and dual 3A output. The output voltage can be configured by the I2C interface. It has output overvoltage protection and overheating protection and meets the AEC-Q100 standard. Model is MPQ4272.

There are six MLCC capacitors around the chip for filtering.

There is an alloy inductor. 4.7μH.

These are the two input filtering capacitors.

The wireless charging power stage chip is from MPS and adopts QFN-22 package. It is used for automotive wireless charging transmitter applications, with an internal low-on-resistance full bridge, a high-precision current sampling amplifier, and a high-voltage buck converter. The current sampling amplifier is used for input power sampling, and the built-in converter can power the wireless charging master. It supports an overheat protection function. Model is MPQ4280.

These two 1μH alloy inductors are used for output filtering.

These are four NPO resonant capacitors connected in parallel.

These are three white NPO resonant capacitors.

This is a transformer used to detect the output current.

The MOSFET used to switch the wireless charging coil is from DIODES and adopts PowerDI5060-8 package. It has a withstand voltage of 60V, a resistance of 14.5mΩ, an operating temperature of 175℃, and complies with the AEC-Q101 standard. Model is DMTH6016LPDQ.

The sampling resistor is used to detect the input current of the wireless charging chip. 7mΩ.

This is an SMD inductor used for input filtering.

These are two electrolytic capacitors for input filtering.

The other wireless charging power stage chip also uses MPS MPQ4280.

Here are two alloy inductors. 1μH.

These are four NPO resonant capacitors connected in parallel.

These are three white NPO resonant capacitors.

This is a transformer used to detect the output current.

These are the two dual MOSFETs used to switch the coils.

The sampling resistor is used to detect the input current. 7mΩ.

This is an SMD inductor used for input filtering.

These are two electrolytic capacitors for input filtering.

The LIN transceiver chip marked with TL021 is from TI and adopts the SOIC8 package. It is AEC-Q100 compliant, compliant with LIN2.0, LIN2.1, LIN2.2, LIN2.2A, and ISO/DIS17987-4 standards, supports 12V applications, and supports a 4.5-36V operating voltage range. Model is TLIN1021-Q1.

The diode used to prevent power backflow is from DIODES and adopts SMA package. 1A 1000V. Model is S1M.

The CAN transceiver chip marked with 1044AV is from TI and adopts VSON package. It supports a 1.7-5.5V I/O voltage range, is AEC-Q100 qualified, and meets ISO 11898-2 2016 physical layer standard requirements. It supports 12 and 24V battery applications. Model is TCAN1044AV-Q1.

This is the filter inductor used in the signal path.

The wireless MCU is from TI and adopts VQFN48 package. It is a low-power Bluetooth 5.2 MCU with an integrated 48MHz ARM Cortex-M4F processor, 352kB system-programmable flash memory, 256kB ROM, 8kB SRAM, and 80kB ultra-low leakage SRAM. It supports OTA upgrades and also integrates an ultra-low power sensor controller. Model is CC2642R.

This is the external clock crystal of the chip. 48MHz.

The NFC chip is from ST and adopts VFQFPN32 package. It is an automotive-grade high-performance NFC card reader with high RF output power, low power mode, wide supply voltage range, and AEC-Q100 Grade 2 certification. It supports automatic antenna tuning and is suitable for automotive applications. Model is ST25R3914.

This is an external clock crystal. 27.12MHz.

The SMD inductor is used for output filtering.

This is the spring contact used to connect to the NFC coil.

Well, those are all components of the Tesla Wireless Phone Charger.

Summary of ChargerLAB

Here is the component list of the Tesla Wireless Phone Charger for your convenience.

The panel of the Tesla WC5 wireless phone charger is made of leather material, with an aluminum alloy shell inside to enhance heat dissipation, and is assembled with clips and screws. The module has two wireless charging positions, separated by a protrusion, supporting the charging of two phones at the same time.

After taking it apart, we found it uses the NXP MWCT22C3AVLH master control chip and the MPS MPQ4272 synchronous buck converter to power two MPQ4280 full-bridge power chips. The module uses automotive-grade components and is made of solid and reliable materials.

Teardown of Tesla WC5 Wireless Phone Charger

Rusell — Thu, 30 Jan 2025 01:00:00 +0000

If you wanna buy the tester of ChargerLAB POWER-Z, you can visit our Amazon store:
United States: Click here
Deutschland: Click here
United Kingdom: Click here
France: Click here

Introduction
---------------------------------------------------------------
ChargerLAB got the wireless phone charger WC5 for the Tesla Model 3. The surface of this wireless charging module is covered with flocking material, which is soft and non-slip. There are two charging positions that support 15W wireless charging. It uses an aluminum alloy shell to enhance heat dissipation. The tilted angle of its charging panel makes it easy to place and view the phone, improving driving safety. The wireless charging module is integrated with the vehicle interior and looks beautiful. Next, let's take it apart to see its internal components and structure.

Teardown of Xiaomi 30W Magnetic Wireless Charger (MDY-17-EY)

Rusell — Wed, 22 Jan 2025 01:00:00 +0000

Introduction

With the release of the Xiaomi Mi 15 series, Xiaomi also launched a 30W magnetic wireless charger that can meet the 30W wireless charging needs of the new series. In addition, it supports the Qi protocol and can provide 7.5W wireless charging power for the iPhone. It is thin and light with strong adsorption force, and the experience of charging and using simultaneously is good. Next, let's take it apart to see its internal components and structure.

Product Appearance

The front of the box is printed with the Xiaomi logo, product name, and appearance.

The specs info is posted on the back. We'll talk about it later.

The box contains the charger and some documents.

It has an integrated USB-C cable and is fixed with a paper ring. The wireless charger is made of aluminum alloy and glass, continuing the simple design style of Xiaomi.

The USB-C port connector is frosted.

It adopts a non-full pin design.

The specs info is printed on the cable. Model is MDY-17-EY. It can support an input of 5-20V3.25A. The maximum output is 30W.

The connection between the cable and the wireless charger is thickened to resist bending.

The wireless charging panel is made of glass.

The center of the back is engraved with Xiaomi.

The edges of the metal shell are rounded.

The length of the cable is about 1 m (3' 3.37'').

The diameter is about 55.85 mm (2.2 inches).

The thickness is about 6.08 mm (0.24 inches).

That's how big it is in the hand.

The weight is about 54 g (1.9 oz).

Teardown

Remove the glass panel.

The magnets are fixed with glue.

In the middle is the wireless charging coil.

Below the wireless charging coil is the PCBA module, and a black plastic shell separates the PCBA module and the aluminum alloy shell.

The USB-C cable core is connected to the PCBA module by welding and protected by glue.

The solder joints between the wireless charging coil and the PCBA module are full.

The PCBA module is equipped with a thermistor for temperature monitoring.

Remove the PCBA module and wireless charging coil.

The back of the PCBA module has components such as the wireless charging master control chip, thermistor, filter capacitor, NPO resonant capacitor, etc.

There are six filter capacitors in the center of the front.

The Schottky diode is marked with S56F.

These are the six filter capacitors on the front.

The wireless charging master control chip is from NuVolta. This is a highly integrated wireless charging transmitter chip with an internal MCU and wireless charging power stage. It integrates the traditional wireless charging master control chip and power full-bridge chip into one package, greatly saving space. It supports I2C and UART interfaces and has a built-in ADC for collecting charging parameter information. It supports QC and PD fast charging functions, has low quiescent current and a single chip can realize a complete wireless charging design with an output power of up to 30W. Model is NV1708A.

This is another set of filter capacitors.

This is the thermistor.

There are white NPO resonant capacitors.

The wireless charging coil is wound with Litz wire.

Well, those are all components of the Xiaomi 30W Magnetic Wireless Charger.

Summary of ChargerLAB

The Xiaomi 30W Magnetic Wireless Charger comes with a USB-C cable and an aluminum alloy casing. It uses a magnetic design, and the experience of charging and using simultaneously is good.

After taking it apart, we found it adopts the NuVolta NV1708A wireless charging solution, which is a highly integrated wireless charging transmitter chip with an internal MCU and wireless charging power stage. It combines the traditional wireless charging master control chip and power full-bridge chip into one package, greatly saving space. The wireless charging coil, magnets, etc. are glued and reinforced, and they are also insulated.

30W | Teardown of Xiaomi Magnetic Wireless Charger

Rusell — Mon, 20 Jan 2025 01:00:00 +0000

If you wanna buy the tester of ChargerLAB POWER-Z, you can visit our Amazon store:
United States: Click here
Deutschland: Click here
United Kingdom: Click here
France: Click here

Introduction
---------------------------------------------------------------
Xiaomi launched a 30W magnetic wireless charger that can meet the charging needs of the Xiaomi 15 series. It also supports the Qi protocol and can provide 7.5W charging power for the iPhone. It is thin and light with strong adsorption force.

Teardown of HP 96W USB-C GaN Charger (ADP-96AW A)

Rusell — Thu, 02 Jan 2025 01:00:00 +0000

Introduction

ChargerLAB got a 96W USB-C GaN from HP, model ADP-96AW A. It has a foldable plug and supports an input voltage of 100-240Vac. It has a USB-C output port and supports 20V4.8A 96W PD fast charging. Next, let's take it apart to see its internal components and structure.

Product Appearance

HP 96W USB-C GaN Charger adopts a black shell made of a fire-retardant PC, and the surface is frosted to resist fingerprints.

There is an HP logo in the center of the front.

The word 96 is written on the lower right corner of the back, indicating the maximum output power of the charger.

The specs info is printed at the bottom.

Model is ADP-96AW A. It can support an input of 100-240V~50/60Hz 3A. It can support outputs of 5V3A, 9V3A, 15V3A, and 20V4.8A. The maximum output is 96W. It is UL-certified and has Level VI energy efficiency certification.

Here is the foldable plug.

It only has one USB-C port.

The length is about 68.3 mm (2.69 inches).

The width is about 68.2 mm (2.69 inches).

The thickness is about 31 mm (1.22 inches).

It is slightly smaller than the Apple 96W charger.

That's how big it is in the hand.

The weight is about 216.5 g (7.64 oz).

ChargerLAB POWER-Z KM003C shows the USB-C port can support PD3.0 and DCP charging protocols.

And it has four fixed PDOs of 5V3A, 9V3A, 15V3A, and 20V4.8A.

Teardown

Next, let's take it apart to see its internal components and structure.

Pry open the shell.

The top and sides of the PCBA module are covered with an integrated aluminum alloy heat sink, with glue at the three corners.

The bottom of the PCBA module is covered with a brass heat sink, and the corners are also glued.

Remove the heat sink, and there is insulating tape on the inside of both pieces.

The components on the front of the PCBA module are reinforced by potting compound, and Mylar sheets are used to isolate the capacitors from the output PCB.

The potting compound on the back of the PCBA helps dissipate heat.

Clean up the potting compound. The components on the front of the PCB are arranged compactly and orderly, and heat sinks are provided on the edge to help the bridge rectifier dissipate heat.

On the back of the PCB, there are the master control chip, Primary MOSFET, optocoupler, SMD Y capacitor, synchronous rectifier controller, and synchronous rectifier.

After removing the heat sink, the bridge rectifier is fixed on the heat sink with a screw.

There is the time-delay fuse. 5A 250V

The NTC thermistor is used to suppress power-up surge current.

Here is the safety X2 capacitor. 0.33μF.

The secondary common mode choke is wound with flat copper wire and has a green core.

The bridge rectifier is from WORLD and adopts GBU package. The operating temperature is -55~+175℃. 15A 1000V. Model is WRGBU1510.

Here is the information about WORLD WRGBU1510.

These two electrolytic capacitors are from Acon. 400V 39μF.

The third electrolytic capacitor is also from Acon. 400V 120μF.

The master control chip is from SOUTHCHIP. It is a high-frequency quasi-resonant flyback controller with a built-in GaN driver that can be used to directly drive enhanced GaN FETs. The chip has built-in X-capacitor discharge and high-voltage startup and has an adaptive switching frequency foldback function. Model is SC3023.

Here is the information about SOUTHCHIP SC3023.

The primary MOSFET is from Navitas and adopts 6*8mm QFN package. This is a highly integrated GaN power chip. 170mΩ 700V. Model is NV6136A.

The optocoupler is from Everlight for output voltage feedback.

The SMD Y capacitor is from TRX. The part numbers are TMY1101K and TMY1681M, respectively.

The synchronous rectifier controller is from SOUTHCHIP. It is an adaptive turn-on detection and fast turn-off synchronous rectifier controller, compatible with multiple MOS, and supports multiple working modes. Model is SC3503.

Here is the information about SOUTHCHIP SC3503.

The synchronous rectifier is from AOS and adopts DFN5*6 package. 100V 5.1mΩ. Model is AON6220.

Here is the information about AOS AON6220.

The three solid capacitors for output filtering come from PolyCap. 25V 1000μF.

The USB-C socket is soldered on a small vertical PCB board.

The protocol chip is from INJOINIC. It integrates multiple protocols for fast charging of USB output ports. Model is IP2726.

Here is the information about INJOINIC IP2726.

The VBUS MOSFET for output is from Fetek and adopts PRPAK3*3 package. 30V 3.9mΩ. Model is FKBB3056.

The USB-C socket has a black plastic sheet.

Well, those are all components of the HP 96W USB-C GaN Charger.

Summary of ChargerLAB

Here is the component list of the HP 96W USB-C GaN Charger for your convenience.

Its shell is black with a matte design, equipped with a foldable plug and a USB-C port. The charger supports an input range of 100-240Vac. It has a maximum output power of 96W.

After taking it apart, we found it adopts QR flyback topology. The main components it uses are from well-known brands. The gaps between components are reinforced with potting compound, and the PCBA module is covered with heat sinks. The workmanship is solid.

Teardown of HP 96W USB-C GaN Charger

Rusell — Tue, 31 Dec 2024 01:00:00 +0000

If you wanna buy the tester of POWER-Z, you can visit our Amazon store:
USA: Click here
Germany: Click here

Introduction
---------------------------------------------------------------
ChargerLAB got a 96W USB-C GaN charger from HP. It has a foldable plug and supports an input voltage of 100-240Vac. It has a USB-C output port. It adopts a black shell made of a fire-retardant PC, and the surface is frosted to resist fingerprints. Next, let's take it apart to see its internal components and structure.

Bill of materials (BOM)
------------------------------------------
Model: ADP-96AW A
Bridge Rectifier: WORLD WRGBU1510
Master Control Chip: SOUTHCHIP SC3023
Primary MOSFET: Navitas NV6136A
Synchronous Rectifier Controller: SOUTHCHIP SC3503
Synchronous Rectifier: AOS AON6220
Protocol Chip: INJOINIC IP2726
VBUS MOSFET: Fetek FKBB3056

Teardown of Tesla WC1 Wireless Phone Charger

Rusell — Thu, 26 Dec 2024 08:45:22 +0000

If you wanna buy the tester of POWER-Z, you can visit our Amazon store:
USA: Click here
Germany: Click here

Introduction
---------------------------------------------------------------
Today, we are going to tear down a wireless phone charger launched by Tesla. The charging module is suitable for Model S, produced from 2012 to 2020, and Model X, produced from 2015 to 2020. It can provide 7.5W charging power and is powered by a USB-A port. Next, let's take it apart to see its internal components and structure.

Bill of materials (BOM)
------------------------------------------
Model: WC1
Wireless Charging Master Control Chip: NXP MWCT1013AVLH
Voltage Regulator Chip: MPS MPQ8904
Dual Op Amp: TI LMV822-Q1
TVS: Nexperia PTVS20VS1UR
Protocol Converter: Microchip MCP2221A
Half-bridge Driver: DIODES DGD05473
Synchronous Buck-boost MOSFET: onsemi NVTFS5811NL
Schottky Diode: Nexperia PMEG060V050EPD
Current Sense Amplifier: TI INA214-Q1
MOSFET: onsemi NVTFS5811NL, DIODE DMT10H017LPD

Teardown of Tesla Wireless Phone Charger (WC1)

Rusell — Fri, 20 Dec 2024 03:34:28 +0000

Introduction

Today, we are going to tear down a wireless phone charger launched by Tesla. The charging module is suitable for Model S, produced from 2012 to 2020, and Model X, produced from 2015 to 2020. It can provide 7.5W charging power and is powered by a USB-A port. Next, let's take it apart to see its internal components and structure.

Product Appearance

The Tesla Wireless Phone Charger comes in a cardboard box.

There is a label on the lower right corner of the box.

Inside the carton is a black packaging box.

"Made on Earth by humans" is printed below the Tesla logo.

The box contains the wireless phone charger and a fixed bracket.

Its front is used to place the phone for wireless charging and also serves as a fixation.

The bump indicates the location of the coil.

The shells on both sides of the panel are used to fix the phone.

There is a power cord at the bottom.

The connection is protected by a sheath.

The back cover is fixed by screws, and an information label is attached to it.

Model is WC1. It can support input of 5V 3.5A. The output is 7.5V/7.5W.

The length of the cable is about 29 cm (11.42 inches).

The weight is about 164 g (5.78 oz).

Teardown

Next, let's take it apart to see its internal components and structure.

Remove the screws and disassemble the cover.

The inside of the back cover is metalized to provide shielding.

It is printed with the Tesla logo, made of PC+ABS material, and produced in March 2020.

The conductive copper foil is pasted at the position corresponding to the PCB contact point.

Screws and positioning columns fix the PCBA module, and springs are welded to the corresponding positions of the conductive copper foil for grounding.

The input cable is fixed with tape.

This is the plastic sheet for insulation.

The aluminum plate is fixed by clips.

Take out the PCBA module.

The inside of the shell is also shielded by metallization.

The conductive copper foil is pasted at the position corresponding to the PCB contact point.

It is also made of PC+ABS.

The input wires are welded on the front of the PCBA module, as well as the wireless charging master control chip, wireless charging coil, and thermistor.

On the back are MOSFET, resonant capacitor, wireless charging power MOSFET, synchronous buck-boost circuit, and filter inductor.

The wireless charging master control chip is from NXP and adopts LQFP64 package. It is an automotive-grade multi-coil wireless charging transmitter controller with integrated digital demodulation, fixed operating frequency, integrated synchronous buck-boost control, and power full-bridge control. Model is MWCT1013AVLH.

This is the external crystal oscillator. 8.000MHz.

The voltage regulator chip used to power the MCU comes from MPS and is marked with T3. It is an automotive-grade 500mA output linear regulator that supports 2.5-6.5V input voltage, meets the AEC-Q100 standard for automotive applications, and adopts QFN-8 package. Model is MPQ8904.

The dual Op Amp is from TI and marked with AKAA. It adopts VSSOP8 package. Model is LMV822-Q1.

The TVS used for overvoltage protection is from Nexperia and adopts SOD-123W package. It is marked with AL. It has a withstand voltage of 20V and meets the AEC-Q101 standard. Model is PTVS20VS1UR.

The USB 2.0 to I2C/UART protocol converter is from Microchip and adopts QFN4*4 package. It supports a full-speed USB connection, has a GPIO interface, can transmit I2C bus data through the USB interface, and meets the AEC-Q100 standard. Model is MCP2221A.

The filter inductor is soldered by chip.

The electrolytic capacitor is connected in parallel with MLCC capacitors for input filtering. The filter capacitor is from nichicon, a UUD series low-resistance chip capacitors that meet AEC-Q200 standards. 47μF 35V.

The two half-bridge drivers for driving the synchronous buck-boost circuit MOSFET are from DIODES and adopt U-DFN3030 package. Model is DGD05473.

The synchronous buck-boost MOSFET is from onsemi and adopts WDFN8 package. 40V 6.7mΩ. Model is NVTFS5811NL.

The input NMOSFET model is the same, and a sampling resistor is provided on the left side for current detection. 15mΩ.

The alloy inductor used for buck-boost voltage conversion is from Coilcraft. 10μH.

The output PMOSFET model is the same.

The output NMOSFET models are the same.

The Schottky diode is from Nexperia and adopts SOT1289 package. It is AEC-Q101 qualified. 60V 5A. Model is PMEG060V050EPD.

The filter capacitor is from nichicon. 47μF 35V.

The current sense amplifier is from TI and adopts SC70 package. It is an automotive-grade bidirectional current sensor that meets the AEC-Q100 standard. Model is INA214-Q1.

The half-bridge driver for driving the wireless charging power MOSFET is from DIODES. Model is DGD05473.

The other model is the same.

The power MOSFET for wireless charging is from onsemi. Model is NVTFS5811NL.

The MOSFET used for wireless charging coil switching is from DIODE and adopts PowerDI5060-8 package. 100V 17.4mΩ. Model is DMT10H017LPD.

The two wireless charging coils are placed overlapping.

There is a thermistor in the center of the coil to detect the temperature.

Well, those are all components of the Tesla Wireless Phone Charger.

Summary of ChargerLAB

Here is the component list of the Tesla Wireless Phone Charger for your convenience.

Tesla's in-car wireless charger is officially produced for the early Model S and Model X that did not support wireless charging. It supports 7.5W output power and is powered by a USB-A port. It can charge one phone and fix the phone through the structural design.

After taking it apart, we found it uses the NXP MWCT1013AVLH master control chip with four DIODES DGD05473 drivers, which are used for synchronous buck-boost MOSFET and wireless charging full-bridge MOSFET driving, respectively. The inside of the shell is shielded by metallization, the shrapnel is welded on the PCB for contact and grounding, and automotive-grade components are used. The solution and materials are solid and reliable.

Teardown of Lenovo 100W GaN Charger for Laptops (ADL100UDGC3A)

Rusell — Fri, 29 Nov 2024 01:00:00 +0000

Introduction

ChargerLAB got an original GaN charger for 100W laptops from Lenovo. This charger is designed with its own cable, and the length of the cable is about 1.8 meters (5.9 feet). It supports 20V 5A PD fast charging and 5-21V 3A PPS fast charging. It is also compatible with phones.

Next, we are going to take it apart to see its internal components and structure.

Product Appearance

The charger is black. It benefits from the use of GaN technology so it is small in size.

Its case is made of fire-retardant PC with a matte surface.

There is a Lenovo logo on the front.

There is the word "100W" here, indicating the maximum output power of this charger.

It adopts a three-prong design.

The specs info are printed on the input panel.

Model is ADL100UDGC3A. It can support input of 100-240V 1.6A 50/60Hz. It can support output of 5V3A, 9V3A, 15V3A, and 20V5A.

There is a groove at the connection between the output cable and the adapter for protection.

The case of the USB-C connector is equipped with a circular groove to facilitate user plugging and unplugging.

The length of it is about 62 mm (2.44 inches).

The thickness is about 32 mm (1.26 inches).

The length of the output cable is about 178 cm (70.079 inches).

That's how big it is in the hand.

The weight is about 234 g (8.25 oz).

The ChargerLAB POWER-Z KM003C shows that USB-C can support PD3.0, PPS, QC5, and DCP charging protocols.

And it has four fixed PDOs of 5V3A, 9V3A, 15V3A, 20V5A, and two sets of PPS, which are 5-11V3A and 5-21V3A.

Teardown

Next, let's start to take it apart to see its internal components and structure.

First, remove the input and output covers.

The input wires are connected by soldering.

The output wires are also connected by soldering.

Cut off the connecting wires and take out the PCBA module. The PCBA module is wrapped with aluminum sheets for heat dissipation.

The length of the PCBA module is about 58 mm (2.28 inches).

The width is about 58 mm (2.28 inches).

The thickness is about 28 mm (1.1 inches).

The aluminum sheets are fixed with clips.

The heat sinks are soldered to the PCBA module.

This is the solder joint for the heat sink.

Remove the heat sinks. There is a mylar sheet between the heat sink and the PCBA module for insulation. The PCBA module is filled with potting compound for heat dissipation.

The fuse, safety X2 capacitor, common mode choke, bridge rectifier, PFC boost inductor, capacitor, and transformer are on the front of the PCBA module.

The back of the PCBA module has a hybrid-flyback controller, two MOSFETs, a feedback optocoupler, a synchronous rectifier controller, a synchronous rectifier, and a protocol chip.

ChargerLAB found it adopts a PFC+HFB hybrid flyback topology, with a wide-range output voltage.

Next, we will take a look at each component starting from the input end.

The fuse, common mode choke, and safety X2 capacitor are at the input end.

The input fuse is from CONQUER MST series and is used for input overcurrent protection. 3.15A 250V.

The safety X2 capacitor is from SCC. 0.33μF.

The common mode choke is wound with magnet and insulated wires, and it's also insulated with a bracket and tape.

The other common mode choke is also wound with magnet and insulated wires. And it's also insulated with a bracket.

The bridge rectifier, PFC controller, PFC MOSFET, and PFC rectifier are fixed on the side of the PCBA module. There are copper sheets and thermal pads corresponding to the MOSFET and rectifier positions to enhance heat dissipation.

Remove the side small PCB and the copper sheet.

The two bridge rectifiers, PFC controller, PFC MOSFET, and PFC rectifier are fixed on the side small PCB.

There are no components on the back of the small PCB.

These are the two bridge rectifiers. Model is MB30KH. 3A 1000V.

The specification of this thin film capacitor is 0.68μF.

The other film capacitor has a specification of 1μF.

The filter inductor is wounded with a magnetic ring and insulated by a bracket.

The PFC controller is from Onsemi. It is based on an innovative Valley Synchronized Frequency Fold-back (VSFF) method, it operates in critical conduction mode (CrM) until the power drops below a threshold level. The VSFF maximizes the efficiency at both nominal and light loads. Model is NCP1623.

It will enter discontinuous conduction mode (DCM) with increased dead-time as the load further decays (frequency foldback).

The PFC MOSFET is from GaNext and adopts PQFN8x8 package. It has a high repetitive input voltage tolerance of ±20V. Model is G1N65R150PB-H. 650V 150mΩ.

Here is information about GaNext G1N65R150PB-H.

The magnetic core of the PFC boost inductor is wrapped with copper foil shield and insulated with tape.

The PFC rectifier is from STMicro and adopts DPAK package. 10A 600V. Model is STTH10LCD06.

The filter capacitor and transformer are on this side of the PCBA module.

The electrolytic capacitor is from NCC. 450V 82μF.

The HFB controller is from Infineon and adopts PG-DSO-14 package. It is a hybrid flyback controller. It integrates 600V high-voltage start-up cell for fast charging, and can drive both high and low-side MOSFETs. And the standby power consumption is less than 75mW. It simplifies the external components. Model is XPDS2201.

The filter capacitor that supplies power to the master control chip is from AiSHi. 35V 47μF.

This MOSFET is from Infineon and adopts ThinPAK8*8 package. 650V 185mΩ. Model is IPL60R185C7.

The HFB PMOSFET is from STMicro and adopts DPAK package. Model is STD13N60M2. 650V 380mΩ.

This side has the transformer and the capacitor for output filtering.

The magnetic core of the transformer is insulated by tape.

This is the blue Y capacitor.

The optocoupler from LITEON is used for output voltage feedback regulation. Model is LTV1004.

The synchronous rectifier controller marked with IBUJR is from MPS and adopts TSOT23-6 package. It supports DCM, CCM, QR, ZVS, ACF (active clamp flyback), and HFB (hybrid-flyback). And its operating frequency can reach 1MHz, and supports synchronous rectifier GaN FET. Model is MP6951.

The synchronous rectifier is from Infineon and adopts PG-TDSON-8 package. Model is BSC040N10NS5. 100V 4mΩ.

The TVS diode used to absorb surge overvoltage is from Littelfuse. Model is SMAJ70A.

This is the solid capacitor for output filtering. 680μF 25V.

The electrolytic capacitor has the same specifications.

The protocol chip is from Weltrend. It supports USB PD3.0 and QC4+. It supports line loss compensation. Model is WT6636F.

The VBUS MOSFET is from APEC and adopts PMPAK3*3 package. Model is AP3NA4R2YT. 30V 4.2mΩ.

Well, those are all components of the Lenovo 100W GaN Charger.

Summary of ChargerLAB

Here is the component list of the Lenovo 100W GaN Charger for your convenience.

It adopts a three-prong design and it comes with a 1.8-meter-long output cable, which can meet most usage scenarios.

After taking it apart, we found it adopts a PFC+HFB hybrid flyback topology, with a wide-range output voltage. The transformer and power component are filled with potting compound to enhance heat dissipation. And the PCBA module is also wrapped with aluminum sheets. It is optimized for high-power continuous output scenarios to improve performance.

Teardown of Lenovo Original 100W GaN Charger for Laptops

Rusell — Wed, 27 Nov 2024 01:00:00 +0000

5000mAh | Teardown of Tesla Wireless Portable Charger (TSL02)

Rusell — Mon, 25 Nov 2024 01:07:08 +0000

Introduction

Tesla is a well-known electric car company that launched a wireless charger with its cable in 2021. Recently, Tesla launched a wireless portable charger with a sense of design. The wireless portable charger has a USB-C cable and a USB-C port and features a flip-top design that allows it to wirelessly charge two devices simultaneously. It even supports wireless input.

ChargerLAB has tested it earlier, and the details can be seen in the charging test. Next, let's take it apart to see its internal components and structure.

Product Appearance

"Tesla Wireless Portable Charger" is printed on the top of the black packaging box.

The specs info is printed on the back of the box, we will talk about it later.

The box contains the charger and some documents.

The shell is made of plastic and covered with metallic paint, with sharp edges and corners.

The front, which is the wireless charging panel, is engraved with the Tesla logo.

Open the primary wireless charging panel, and you will see a wireless charging panel on the inside, which is covered with Alcantara suede to prevent the device from being scratched and enhance friction.

The specs info is printed inside.

Model is TSL02. The capacity is 5000mAh, and the energy is 19.3Wh. It can support input of 5V2.4A, 9V2A, and 12V1.5A. The maximum output is 20W. The maximum wireless output (primary) is 15W. The maximum wireless output (secondary) is 5W. The maximum power of the wireless receiver is 10W.

The back design is extremely simple.

The capacity is 5000mAh, and the energy is 19.3Wh.

There are four LED indicators on the side.

Each indicator represents 25% of the battery capacity.

Above the power indicators is the power button.

The integrated USB-C cable is on the other side.

The certifications it has passed are printed on the inside.

The length of the integrated cable is about 10 cm (3.94 inches).

The hinge is at the bottom.

There is a USB-C port on the top, and the plastic sheet is black.

The length is about 101.4 mm (3.99 inches).

The width is about 70.3 mm (2.77 inches).

The thickness is about 17.8 mm (0.7 inches).

And the weight is about 189 g (6.67 oz).

That's how big it is in the hand.

It can wirelessly charge two devices at the same time.

ChargerLAB POWER-Z KM003C shows the USB-C port can support QC3.0, FCP, SCP, AFC, PD3.0, DCP, and Apple 2.4A charging protocols.

And it has three fixed PDOs of 5V/2.4A, 9V/2.22A, and 12V/1.67A.

ChargerLAB POWER-Z KM003C shows the USB-C cable can support QC3.0, FCP, SCP, AFC, PD3.0, DCP, and Apple 2.4A charging protocols.

And it has three fixed PDOs of 5V/2.4A, 9V/2.22A, and 12V/1.67A.

Teardown

Next, let's take it apart to see its internal components and structure.

First, pry off the secondly wireless charging panel along the gap, which has a wireless charging coil inside.

There is a magnet inside the cover to absorb the wireless charging coil on the top cover.

The wireless charging coil is attached to the battery.

The thermistor on the battery is used to detect temperature.

顶盖采用金属转轴固定。

The wires of the wireless charging coil are fixed with tape.

The wireless charging coil is wound with yarn-wrapped wire.

There is foam on the PCBA module for cushioning.

Tear off the foam, here is the PCBA module.

The battery pack is soldered to the PCBA module via wires.

This is the screw used to fix the PCBA module.

Remove the PCBA module, battery pack, and coil from the shell.

The back of the cover is fixed by glue.

There is also a magnet here that holds the wireless charging coil inside the flap.

This is the wireless charging coil inside the flip cover.

The wires are insulated by heat-shrinkable tubing and secured with high-temperature tape.

This is a rectangular magnet used to hold phones.

There is a black magnetic isolation sheet on the coil and a ring magnet on the edge for adsorbing the phone.

The wiring of the coil inside the flip cover is shown in the figure.

The coil inside the flip cover is connected to the PCBA module through wire welding.

Let’s look at the PCBA module and battery pack.

The wireless charging coil is attached to the back of the battery pack.

A magnetic isolation sheet is pasted between the wireless charging coil and the battery and fixed with double-sided tape.

The coil is wound with magnet and insulated wires and tightened with high-temperature tape.

The wires of the coil are soldered to the PCBA module.

The wire cores of the integrated cable are wrapped with black rubber and adhered to the side of the battery.

Disconnect the coil wires, battery pack, and PCBA module.

This is the battery.

The 765865 battery is from APRS. The rated voltage is 3.85V, the capacity is 5Ah, and the energy is 19.3W.

There is a battery protection PCB at the battery cell tabs.

The battery protection PCB is connected by spot welding and insulated by high-temperature tape.

Remove the battery protection PCB.

The battery cell and the battery protection PCB are insulated by barley paper.

Two battery protection chips are on the battery protection PCB.

There are no components on the back.

These are two battery-protection MOSFETs.

The MOSFET is from XySemi and adopts CPC5 package. Model is XB7608G.

The PCBA module consists of two PCBs, a green one and a black one.

Two PCBAs are connected by pin headers.

There is a gray thermal pad and a piece of black foam on top of the green PCBA.

There is also a layer of silicone in the middle of the foam to enhance heat dissipation, and the foam provides buffering and protection for the PCB.

Remove the foam and thermal pad.

The front of the black PCB has four LED lamp beads, an alloy inductor, a master control chip, a USB-C socket, a resonant capacitor, and a wireless charging chip.

There is an MCU, a battery protection chip, and a protocol chip on the back.

The master control chip is from SOUTHCHIP and adopts QFN32 package. It is a synchronous buck charging converter with reverse boost discharge function. The chip integrates two ultra-low resistance NMOS. Model is SC8933.

Here is the information about SOUTHCHIP SC8933.

This is the VBUS MOSFET used to switch the USB-C port and USB-C cable.

The wireless charging chip is from MAXiC and adopts FCQFN24L package. It is a highly integrated, high-performance wireless charging transmitter chip based on magnetic induction. It supports WPC Qi2 wireless charging protocol and multiple wired fast charging protocols such as PD, UFCS, FCP, SCP, QC, etc. It has passed PD and UFCS wired fast charging protocol certification and supports 4-20V wide input voltage and up to 15W output power.

It supports overvoltage protection (OVP), overcurrent protection (OCP), under-voltage protection (UVP), and overtemperature protection (OTP). In addition, the chip also embeds a dynamic power limit (DPL) comparator to prevent the IC from entering the UVLO state when the input power cannot meet the output power demand. If the VDD voltage drops below the DPL threshold, the chip will reduce the output power accordingly to protect the system from the UVLO state. Model is MT5806.

Here is the information about MAXiC MT5806.

These are four resonant capacitors connected in parallel.

The USB-C protocol chip is from Chipsea and adopts QFN24 and QFN32 packages. It supports dual-channel independent USB-C port applications and has passed PD3.1 certification with good compatibility. Model is CS32G020K8U6.

The wireless charging master control chip is from Cmsemicon. It is a general-purpose MCU, an enhanced 1T 8051, with built-in analog comparator, op-amp, and 6-channel PWM output for wireless charging control. Model is CMS8S6990.

The battery protection chip is from Xysemi and adopts SOP8-PP package. It is a highly integrated lithium-ion/polymer battery protection solution. Model is XB8886G.

The plastic sheet of the USB-C port is black.

These are four LED lamp beads.

This is the power button.

This is a thermistor used to detect the temperature of the coil and battery pack inside the case.

There is a wireless charging receiver chip, a wireless charging chip, four resonant capacitors, and a filter inductor on the front of the green PCBA.

There is a thermistor on the back to detect the battery temperature.

The wireless charging receiver chip marked with POWER27 is from MAXiC and adopts WLCSP52 package. It is a high-efficiency wireless charging receiver chip. It is a single-chip solution that supports 20W power and can be configured as a wireless transmitter to power other receivers. The chip complies with the WPC Qi 1.2.4 specification. It has a built-in ARM M0 processor, 8KB SRAM, and 16KB MTP memory. It has built-in overvoltage and overcurrent protection and supports the I2C interface and configurable GPIO interface. Model is MT5727H.

Here is the information about MAXiC MT5727H.

This wireless charging chip also comes from MAXiC and has the same model as the previous one.

These are four resonant capacitors connected in parallel.

The filter inductor is marked with T03.

Well, those are all components of the Tesla Wireless Portable Charger.

Summary of ChargerLAB

Here is the component list of the Tesla Wireless Portable Charger for your convenience.

It has two wireless charging output panels that support 15W and 5W, respectively, and a 10W wireless charging input panel. In addition, it is also equipped with a USB-C port and a USB-C cable that supports a maximum of 20W input and output.

After taking it apart, we found it adopts a 5000mAh battery cell from APRS and XySemi's integrated battery protection chip for battery pack protection. The PCBA module consists of two PCBs. Two thermistors are inside to detect the coil and battery temperatures, respectively. The PCBA module uses a thermal pad and foam to enhance heat dissipation. The heat dissipation and buffer protection are excellent, and the workmanship is solid.

Teardown of Tesla Wireless Portable Charger

Rusell — Sat, 23 Nov 2024 01:00:00 +0000

If you wanna buy the tester of POWER-Z, you can visit our Amazon store:
USA: Click here
Germany: Click here

Introduction
---------------------------------------------------------------
Recently, Tesla launched a wireless portable charger with a USB-C cable and a USB-C port and features a flip-top design that allows it to wirelessly charge two devices simultaneously. It even supports wireless input. ChargerLAB has tested it earlier, and the details can be seen in the charging test. Next, let's take it apart to see its internal components and structure.

Teardown of UGREEN 15W Qi2 Wireless Charger (W703)

Rusell — Mon, 18 Nov 2024 01:28:00 +0000

Introduction

UGREEN has launched a Qi2 magnetic wireless charger that supports 15W wireless fast charging for iPhones. It comes with an integrated USB-C braided cable. Its case is made of aluminum alloy to improve heat dissipation. ChargerLAB also got one. Next, let's take it apart to see its internal components and structure.

Product Appearance

The front of the box is printed with UGREEN, product appearance, Qi2, 15W, and other selling points.

Some specs info are printed on the back, we'll take about later.

The box contains the UGREEN 15W Qi2 wireless charger and some documents.

The UGREEN 15W Qi2 wireless charger comes with an integrated USB-C cable.

The case of the USB-C connector is made of metal, sprayed with silver metallic paint, and has UGREEN printed on the front.

The braided cable is silvery white and has good workmanship.

There is a product information label on the cable. Model is W703. It can support input of 5V3A or 9V2.22A. The maximum output power is 15W.

The back of the label has the Qi2 logo, indicating that it supports the latest Qi2 wireless charging standard and can achieve 15W magnetic wireless charging for iPhone 12-15.

The back of the charging panel is made of aluminum alloy. The center is laser engraved with UGREEN.

The back of the charging panel has a raised design.

The front surface is covered with silicone, which feels good to the touch. The Qi2 logo is printed in the center.

The length of the USB-C cable is about 156 cm (61.42 inches).

The diameter of the wireless charging panel is about 60 mm (2.36 inches).

The thickness is about 11 mm (0.43 inches).

The weight is about 108 g (3.81 oz).

Teardown

Next, let's start to take it apart and take a look at the internal components.

First, pry off the front cover of the wireless charger. There are wireless charging coils and magnets for holding phones inside.

The wireless charging module and the aluminum alloy case are fixed with tape.

The braided cable is fixed in the case by screws.

Remove the fixing screws and separate the wireless charging module and the aluminum alloy case.

The cable is equipped with a copper ring to tighten it to prevent it from loosening.

The wires are connected to the wireless charging module by soldering, and the soldering points are insulated with glue.

Separate the wires and wireless charging module.

There is a shielding net and tin foil inside the cable for shielding.

The interior of the aluminum alloy case adopts a groove design corresponding to the wireless charging module and cable.

There is a metal shielding case on the back of the wireless charging module.

The metal case is fixed by spot welding.

Remove the metal case and find a circular PCBA module inside the case.

The metal case is made by stamping process.

Here is the PCBA module.

A bump on the case fixes the PCBA module.

The wireless charging coil is soldered to the PCBA module.

There is a layer of conductive fabric between the PCBA module and the case.

Remove the PCBA module.

The diameter of the PCBA module is about 43.4 mm (1.71 inches).

The thickness is about 2.6 mm (0.1 inches).

The wireless charging master control chip, secure authenticator, alloy inductor, MOSFETs, and MLCC capacitors are on the front of the PCBA module.

A large area of copper is exposed on the back of the PCBA module to enhance heat dissipation.

The wireless charging master control chip is from NuVolta. It integrates a buck and boost controller, four pairs of half-bridge drivers, a built-in 32-bit MCU core, 64K MTP, and 4K SRAM. It has integrated protection functions and supports Qi2 wireless charging. Model is NU1718.

The crystal oscillator is used for the wireless charging master control chip. 41.039MHz.

The secure authenticator is from FUDAN. It supports multiple security algorithms and has multiple protection capabilities. Model is FM1230.

The Dual Op Amp for signal demodulation is from Gainsil. Model is GS358.

There is an NTC thermistor below the alloy inductor to detect the temperature of the wireless charger. 4.7μH.

The MOSFET used for the synchronous boost is from VGSEMI and adopts PDFN3333 package. Model is VS3622DE. 30V 10mΩ.

Here is the information about VGSEMI VS3622DE.

These are the resistor and the MLCC capacitors.

These two MOSFETs for wireless charging are from VGSEMI. Model is VS3622DE.

The MOSFET used for resonant capacitor switching is from AGM-Semi and adopts PDFN3.3*3.3 package. Model is AGM614MBP. 60V 13mΩ.

These are six NPO resonant capacitors.

NuVolta is printed on the edge of the PCB.

Well, those are all components of the UGREEN 15W Qi2 Wireless Charger.

Summary of ChargerLAB

Here is the component list of the UGREEN 15W Qi2 Wireless Charger for your convenience.

It uses an aluminum alloy case to improve heat dissipation. The charging panel is made of silicone to avoid wear and tear on the phone during use. It comes with an integrated USB-C braided cable, which is about 156 cm (61.42 inches).

After taking it apart, we found it adopts a wireless charging master control chip from NuVolta. It is also equipped with a thermistor to detect the temperature, improving consumers' charging experience. The interior is compact and equipped with comprehensive safety measures. And the overall workmanship is pretty good.

Teardown of UGREEN Qi2 Magnetic Wireless Charger

Rusell — Sat, 16 Nov 2024 01:00:00 +0000

If you wanna buy the tester of POWER-Z, you can visit our Amazon store:
USA: Click here
Germany: Click here

Introduction
---------------------------------------------------------------
UGREEN has launched a Qi2 magnetic wireless charger that supports 15W wireless fast charging for iPhones. It comes with an integrated USB-C braided cable. Its case is made of aluminum alloy to improve heat dissipation. ChargerLAB also got one.
Next, let's take it apart to see its internal components and structure.