Orico QC2.0 USB charger QCW-1U

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Official specifications: I got it from a Aliexpress dealer: ORICO Direct Store

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Measurements

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The charger is rated for 2A and can deliver 2.2A, not much extra power.

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And it looks the same at 230VAC

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At 9V it is also rated for 2A and can deliver 2.1A.

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At 12V it is rated for 1.5A and can deliver nearly 1.6A before output drops, overload protection kicks in at 2.1A

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No problems running one hour at 12V 1.5A.
The temperature photos below are taken between 30 minutes and 60 minutes into the one hour test.

Temp4558

M1: 62,4C, M2: 48,1C, HS1: 70,3C
HS1 is the big "all in one" chip, M1 is the transformer.

Temp4559

M1: 57,7C, HS1: 58,5C
M1 is the "all in one" chip. HS1 must be the "kick back" handling.

Temp4560

HS1: 63,7C
HS1 is the white blob between the transformer and the box, it improves the heat transfer.30-jul-2017 15:2130-jul-2017 15:21

Temp4561

HS1: 51,8C
HS1 is the transformer.

Temp4562

M1: 56,0C, M2: 50,1C, M3: 49,3C, HS1: 62,4C


10ohm

At 0.5A the noise is 21mV rms and 450mVpp

5ohm

At 1A the noise is 32mV rms and 437mVpp

2.5ohm

At 2A the noise is 35mV rms and 450mVpp

10ohmQC12V

At 0.5A the noise is 40mV rms and 467mVpp



Tear down

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My vice could not open this charger, I had to cut it open.

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At the mains input is a fuse (FR1) in heat shrink. There is two inductors (L1 & L2), one is green and the other is just a ferrite bead around a wire. The blue capacitor (C1) is the safety capacitor. On the low volt side is a two color led.

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On the first image the fuse can be seen. The transformer has a plastic around it, this can be seen on both images.
The output capacitor is 16V, this is needed because QC can deliver 12V.

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On the first image the safety capacitors can be seen. Between the usb connector and a diode there is some black plastic, probably because they got placed a bit too close.
On the second picture a plastic shield is hiding most of the electronic, it is between the electronic and the mains input and prevents any shorts.

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Here there is a lot of stuff. At the input is the bridge rectifier (BD1), there is the big power supply chip (U1: SC1223K), the QC2 controller (U2: CHY100), a synchronous rectifier transistor (Q1) and one more chip?
It is a OpAmp and reference (U3: TSM103AIW) and is used for the dual color led (That led requires an extra chip and a couple of other parts).

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Safety distance look good.


Testing with 2830 volt and 4242 volt between mains and low volt side, did not show any safety problems.



Conclusion

The charger can deliver an acceptable about of power at 5V and Quick Charge V2.0 for faster charging. It is a nice little detail with the QC indicator, i.e. no guessing if the phone/tablet uses QC, just look at the led, the noise is slightly high.
Safety also looks good.

A good little charger.



Notes

Index of all tested USB power supplies/chargers
Read more about how I test USB power supplies/charger
How does a usb charger work?