Whatsminer power supply repair course

Optocoupler feedback circuit in P221C number 2 auxiliary power area

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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Spring Festival Holiday Notice

Dear students,
Hello everyone, as China is about to usher in the Spring Festival, our company is scheduled to start the Spring Festival holiday from January 21 to February 4, 2025 (GMT+8). The course tutors will reply to you when they see the message. Please forgive them if they fail to respond in time. Thank you for your support and trust in 2024. In 2025 and the future, the ZMRC team will continue to offer you more professional courses and technical support.
Best wishes,
ZEUS MINING CO., LTD


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