Optocoupler feedback circuit in P221C number 2 auxiliary power area

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Optocoupler feedback circuit in P221C number 2 auxiliary power area

The optocoupler feedback circuit in the No. 2 auxiliary power area of the P221C PSU consists of MOS tube, optocoupler, and the No. 2 auxiliary power chip. This circuit is used to feed back the voltage of the miner fan interface and power supply fan interface to the No. 2 auxiliary power chip. This video will demonstrate how to measure this optocoupler feedback circuit.

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