Impact current-free charging circuit of air conditioner frequency conversion controller

The utility model relates to a charging circuit of an air conditioner frequency conversion controller without impact current. The charging circuit comprises a rectifier bridge, the input end R and theinput end S of the rectifier bridge are respectively connected to a live wire L1 and a live wire L2 through a relay Q1 and a relay Q2; the input end T of the rectifier bridge is connected to a live wire L3; the output end P and the output end N of the rectifier bridge are respectively connected to the positive end of the capacitor C1 and the negative end of the capacitor C2; the capacitor C1 andthe capacitor C2 are connected in series; a resistor R1 is connected to the capacitor C1 in parallel; the capacitor C2 is connected with a resistor R2 in parallel; the input end and the output end ofthe auxiliary switching power supply are respectively connected with the live wire L3 and the zero line N; and the series midpoint of the capacitor C1 and the capacitor C2 passes through the resistorR3 and the relay K1 in seque