Products > Test Equipment
Warning about A-BF
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ArCoN:
Hi All

Just want to give a fair warning about this company.
brought a one of there "big" psu (CSY600-6) almost a year ago.
https://www.aliexpress.com/item/1005001385711811.html?spm=a2g0o.order_list.order_list_main.132.a0951802Lu5xtB

first power up, around 100v 5-6A, the power board blow up, one of the power transistors literally caught on fire :D
i did not put much thought in that, shit can happen. they send me a new power board.
Got it assembled and started the test of the psu when i got to around 300v it blew up again...
so i got a closer look and realised they used 2 x 0603 resistors as the input divider for 600V, wtf :/
They obviously don't know what they are doing...

I still don't have a working psu and they don't respond to me anymore.
I just want to know how to calibrate the unit, apparently a hard question to answer.

$1000 down the toilet!...  :palm:

B.R.
rsjsouza:
I am sorry to hear about your predicament. Did you take any photographs of the board before/after the failure event? Perhaps there might be a way to fix this in house.

Designing a 3600W HV power supply is no walk in the park - especially at the advertised prices.
ArCoN:
Hello

I have pictures after ;)

The problem is if there is some firmware calibration there needs to be done.

B.R
ArCoN:
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