The induction cooker is used above VIPer12A is the power switch power supply IC of the auxiliary power supply. VIPer12A application circuit: Each pin function 1, 2 grounding, 3 sampling circuit, 4 output 18V, 5, 6, 7, 8 connected to 300V. It is best to use the original model, in case you can not buy, VIPer22A can be replaced.