EMI filter circuit of Antminer APW12 1215 power supply

The APW12 1215 power supply has two 220V single-phase AC inputs, so there are 2 EMI filter circuits. The components of the two filter circuits are the same, they are composed of 2 X capacitors, a row of Y capacitors, and 2 common mode inductors. This lesson will explain in detail the circuit structure of the EMI filter circuit, and demonstrate how to measure the related circuit direction of the EMI circuit on the APW12 PSU.

Click To Watch