Antminer APW9 plus power supply PFC circuit

Same as the EMI circuit of the APW9+ power supply, the PFC circuit is also 2-way. Only when the two PFC circuits are working normally, the circuit can continue to supply power downward. Between the EMI circuit and the PFC circuit, a bridge stack is also required to rectify the AC voltage DC voltage. If the bridge stack output voltage is abnormal, it may cause PFC circuit failure. This video will explain the working principle and measurement of the PFC circuit in detail.

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