Do you remember that we published a Xiaomi 100W charging stand?
If you haven't, you can click the right corner to check it out.
And today, we will teardown its previous generation, 80W.
The packaging is still black.
80W is the maximum wireless charging power, and it has a 120W charger inside.
Turn to back.
Model is MDY-13-ED.
It can support input of 5-20V 6A and output of 80W.
Then, unbox it.
We can see the charger stand, cable, and 120W charger.
The customized cable support up to 6A current,
and maximum input voltage is 20V.
Use ChargerLAB POWER-Z KT002 to test it with the cable inside.
It supports Samsung 5V2A, DCP protocol, and QC2.0/3.0, PD3.0 fast charging protocol.
It also has four fixed PDOs of 5V3A, 9V3A, 15V3A, 20V3.25A.
So, it can charge your laptop with 65W.
This charger adopts a sail-shaped design.
The surface is matted and pure white.
The base is composed of transparent acrylic.
The bottom is the air outlet.
Put your mobile phone on it, and the built-in fan will start to take the heat away during charging.
The shallow groove can effectively prevent the phone from sliding down.
The LED indicator and USB-C port are on the back.
The LED indicator lights up green after plugged in.
From the side, it has certain slope, which can firmly support the phone.
The bottom is the air outlet.
And the rubber pad can fix the charger on your table.
The qi certification is in here.
Then, let's find some mobile phones to test.
I have to say, this charger might be only perfectly compatible with Xiaomi or Mi mobile phones.
For the rest of the phones, the power will drop to 7W.
Then, let's go ahead and tear it down.
Remove the rubber pad and screws.
Then, we can separate the bottom and take out the charging module.
The module looks like a triangle from the side.
The charging coils are placed on the front and back sides.
The PCB is fixed with screws.
And the coils are fixed with double-sided tape.
Then, remove the screws at the bottom.
We can see the cooling fan is fixed by screws as well.
This charger is composed of PCB, coils, and cooling fan.
There are multiple controllers, MOSFETs, and Bluetooth antennas on the front of the PCB.
And the alloy buck-boost inductor, filter solid capacitors,
and NPO resonant capacitors are on the back.
The USB-C receptacle port is welded in here.
The specification of input filter capacitor is 35V 100μF.
The master control chip is in the middle,
which comes from NuVolta NU1513.
This highly integrated digital controller can provide stable power
and be used for a 30W wireless charging transmitter that complies with the WPC EPP standard.
It can form a simple, high-performance, and cost-effective wireless charging transmission solution
with NuVolta NU1028.
Those four chips are NuVolta NU1028.
Two of them are connected in parallel to drive one coil.
It also integrates driver, step-down circuit, and voltage regulator circuit.
And it supports lossless high-precision current detection.
And two sets of NPO resonant capacitors are at the bottom.
There are two transmitting coils on the front side.
And the thermistor is in the middle of each coil, used to detect temperature.
The interface protection transistor comes from Vanguard VS3510AE.
Withstand voltage is 30V.
The input protocol chip comes from Infineon CYPD3171,
supporting QC4.0, APPLE 2.4A, AFC, BC1.2, etc.
It can dynamically adjust the output voltage of adapter to meet the needs of wireless charging.
This is buck-boost controller, Southchip SC8701.
It can precisely adjust the output voltage based on different mobile phones.
Those four external MOSFETs come from Vanguard VS6608GE, which are used for voltage conversion.
Withstand voltage is 65V.
This is 6R8 alloy buck-boost inductor, fixed by red glue.
Those four filter capacitors are 35V 47μF.
Here is the step-down converter, silergy SY8201
And the 6R8 step-down inductor is next to it.
Those two filter capacitors are 35V 47μF.
The Bluetooth MCU is responsible for the cooling fan, indicator light, and connection with phone.
Here is the RainSun Bluetooth antenna.
And the LED indicator is next to it.
You can easily unplug the cooling fan, and the rated input of the fan is 5V 0.4A.
Well, that would be all for the teardown of Xiaomi 80W Wireless Charging Stand.
If you're a Xiaomi user, you'll get the super-fast charging speed with 120W charger and this charging stand.
But for those non-Xiaomi users, we won't recommend you to buy it, cause 7W really suks.
Ok, that's all for today's video.
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See you in the next video. Bye.