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Recently, Huawei released the MateBook 13s/14s laptops.
And this 90W GaN charger is included in the box.
Today, ChargerLAB will teardown this Huawei fast charger to see what's inside.
It adopts fixed pins, and the plug will vary based on your location.
We can see the model is HW-200450CP0.
It supports input of 100-240V 50/60HZ 1.6A and output of 5V3A, 9V3A, 12V3A, 15V5A, 20V4.5A.
It just has one USB-C, and is printed with 90W.
The length is 59mm (2.32 inches).
The width is 60mm (2.36 inches).
The thickness is 28mm (1.1 inches).
The weight is about 181g (6.38 oz). So, the power density is about 0.88W/cm³.
Take out ChargerLAB POWER-Z KT002.
We can see it supports Samsung 5V2A, DCP protocol
and QC2.0, QC4, FCP, SCP, PD3.0, PPS fast charging protocol.
It also has five fixed PODs of 5V3A, 9V3A, 12V5A, 15V5A, 20V4.5A.
And two PPS PDOs of 3.4-15V5A and 3.4-21V4.5A.
This charger can support PPS protocol, so let's see its compatibility.
Use the cutting machine to cut it off.
The PCB module is filled with thermal adhesives for heat dissipation and reinforcement.
Then, let's clean it up.
The back of the PCB is equipped with an insulating plate and a heat sink,
and the heat sink is wrapped with insulating tape.
Remove the heat sink, and there're another small heat sink and isolation plate on it.
The layout of the components is very compact.
ChargerLAB found that this charger adopts the architecture of PFC+ACF.
And the protocol chip can output wide-range voltage under the control of optocoupler.
The GaN IC and planar transformer can make this charger smaller.
Next, we will remove all the components and analyze them one by one.
The specs of the time-delay fuse is 3.15A 250V.
And the safety X capacitor comes from STE (Songtian Electronics).
The blue varistor is used for overvoltage protection.
And two common mode chokes are used to filter out EMI interference.
This is a bridge rectifier.
Those two film capacitors for filtering come from Carli's MPH series.
The filter inductor is next to it.
This is discharge chip of X capacitor. Model is PN8201.
The PFC boost controller comes from NXP TEA19162,
used for boosting the rectified voltage and active PFC.
It integrates discharge chip of X capacitor
and can support soft startup & shutdown, high-precision voltage regulation, etc.
The PFC boost MOSFET comes from Orientalsemi OSG65R200JF and adopts PDFN8x8 package.
700V, 200mΩ.
The fast recovery diode comes from Pingwei PBMUR5JE and is used for PFC boost rectification.
The PFC boost inductor is wrapped with copper foil,
and the plastic shell is used for reinforcement and protection.
The electrolytic capacitor for high-voltage filtering comes from CapXon.
450V 82μF.
The power supply capacitor of master control chip also comes from CapXon.
40V 82μF.
A GaN chip, marked with JW1551A.
The GaN IC adopts ST MASTERGAN1, which integrates two GaN FETs and half-bridge drivers.
It can reduce the external components and make the PCB layout more compact.
It adopts 9*9*1mm QFN package, and working current is 10A.
650V, 150mΩ.
Those two optocouplers are used for feeding back output voltage.
Those are two Y capacitors.
The planar transformer is welded on the left side of the output and insulated by the plastic shell.
The USB-C receptacle is welded on a small PCB.
And there're two solid capacitors for output filtering on the right.
The synchronous rectifier controller is marked with JWNRJ.
And the synchronous rectifier adopts Infineon BSC093N15NS and SuperSO8 package.
150V, 9.3mΩ.
There is a row of MLCC capacitors on the secondary side for filtering.
There is a VBUS switch on the front of the small output PCB.
And a protocol chip is on the back. Model is CPS8841.
It uses QFN4x4 package, and the input voltage is 3-22V.
It supports multiple charging protocols, such as USB PD3.0, BC1.2, QC2.0, etc.
The Huawei super-fast charging protocol is also added.
There are two triodes.
Output VBUS switch is marked with S418N.
The USB-C receptacle is protected by plastic and steel.
Well, this is the fourth generation of GaN charger from Huawei and supports two PPS PDOs.
It also supports Huawei FCP, SCP protocol additionally.
So, its compatibility is pretty good.
If you're a Huawei user, this charger can almost charge all of your Huawei devices.
The layout is very compact, and GaN IC can effectively reduce the external components.
It also adopts a highly integrated planar transformer and is placed in the hollow of PCB.
Ok. That's all for today's video.
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See you in the next video. Bye.