Hi, guys. Welcome to today's video.
What we gonna teardown today is the power supply of Microsoft Xbox Series X.
The power supply is integrated into the game console.
And you cannot take it out unless you destroy your Xbox Series X.
It adopts a metal shell.
The charging wire is connected to the input socket.
And here are two output cables.
The specs info is in the upper right corner.
Model is 1920.
It can support input of 100-240V 50/60HZ 4.21A
and output of 12V5A or 12V21.25A.
Those two sides are just like a grater, used to dissipate heat.
The bottom is the only part with plastic.
Here is the input socket, marked with some information.
Remove the metal case.
A layer of fire-retardant PC is inside the metal case.
The plastic shell at the bottom is fixed by clips.
ChargerLAB found it adopts the topology of PFC and LLC,
And let's introduce every single component one by one.
Here is the EMI filtering circuit of the input end.
The time-delay fuse is 6.3A 250V.
The varistor is protected by insulation tube.
And there are two safety X capacitors and two common mode chokes.
One of the safety X capacitors is soldered on a vertical PCB.
The safety X capacitor is 0.47μF, and the other one is 1.0μF.
Here are two blue Y capacitors.
The bridge rectifier comes from Yangjie, and is fixed on the heat sink by screws.
The green resistor is next to it, used to suppress the surge current.
Here is the filter capacitor.
The master control chip comes from MPS HR1211,
which is a two-in-one controller
and can support multi-mode PFC and current-mode LLC.
It's highly integrated, so it can replace 2-3 traditional chips.
It can support high-voltage startup and intelligent X capacitor discharge.
We can find the conductive foam on the PFC boost inductor and heat sink.
Remove the PFC boost inductor,
which is marked with some information.
The PFC boost MOSFET comes from APEC (Advanced Power Electronics).
And it adopts TO-220CFM package,
115mΩ.
The ultra-fast rectifier diode comes from Lite-on, withstand voltage is 600V.
An electrolytic capacitor is placed horizontally in the middle,
which comes from Ltec.
450V 220µF.
Here is the resonant capacitor.
Three SAMXON filter capacitors are soldered on another small PCB to power the master control chip.
50V 100μF.
The half-bridge MOSFET comes from STMicroelectronics and adopts DPAK package.
550V, 0.28Ω.
Here are two Everlight 1019 optocouplers.
There's another chip, marked with SH3H0022.
The LLC synchronous rectifier controller comes from MPS MP6924A,
which integrates two synchronous rectification controllers,
and it's used for the synchronous rectification
of two secondary coils.
It is compatible with CCM/DCM mode.
And it can support input of 4.2-35V,
so it's suitable for PD3.1 140W power supply.
Those two synchronous rectifiers also come from STMicroelectronics,
and is used for LLC synchronous rectification.
60V, 0.0031Ω.
And here are three solid capacitors for output filtering.
16V 1200μF.
And the current-sense resistors are in here.
Well, that's all for today's video.
It's a little bit surprising that the 255W power supply can be so small,
which can reduce the size and weight of the Xbox Series X.
And the reason why it can be so small is just because of the highly-integrated topology
of PFC and LLC.
Except for the power supply of Xbox Series X,
we're preparing the teardown videos of Playstation 5's power supply.
If you wanna know what's inside of that power supply,
don't forget to subscribe to us,
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Stay tuned.