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Rezensionen (1)
22. Mär 2021
Good Power Supply
I have not used this for the intended use, but this is an incredible power supply. With 120V in, it manages 150A or so before current limiting. With 240V it goes into overcurrent shutdown, unfortunately. The construction of the supply was also fantastic; it is divided into three boards for the input filter and section, boost PFC/standby supply, and the main DC-DC converter. It has a voltage adjustment potentiometer under the little sticker that allows adjustment to a little over 13.8v.
The output pins are:
1 2 3
4 5 6
7 8 9
10 11 12
1) Current sense (about 30mV/A)
2) Serial data for the EEPROM (402WP)
3) Serial clock for the EEPROM
4) AC zero crossing detector, it seems.
5) Chip select for the EEPROM (I think)
6) GND
7) Probably some power indicator; it is 5v when the output is enabled and 0v when it's not or there's a fault.
8) Present (it can be identified by the shorter pin)
9) Ground
10) PS_ON
11) 5V standby
12) 5V standby
To turn the supply on, connect Present to 5V standby with a 10k resistor (or so) and PS_ON to ground.
The power supply was a little dusty inside but otherwise in excellent condition. And at this price, that's no valid complaint.