APW12 1215b training for the CPU chip optocoupler feedback circuit
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For the CPU chip in the APW12 1215b main power area to be activated and work normally, the optocoupler needs to detect the 400V output of the PFC circuit, and then the 12V output from the No. 2 secondary power will supply power to the main power chip. In this way, the entire PSU will output 15V DC voltage normally.
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Dear Friends,
Hello everyone, as China is about to usher in the Spring Festival, our company is scheduled to start the Spring Festival holiday from February 12 to February 23, 2026 (GMT+8). Our pre-sales customer service and course tutors will reply to your message as soon as possible. Please understand and forgive us if we are unable to reply promptly. Thank you for your support and trust in 2025. In 2026 and the future, the ZMRC team will continue to offer you more professional courses and technical support.
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