Electric energy meter sampling circuit capable of preventing power frequency interference based on resistor and PCB

The utility model discloses an anti-power-frequency-interference electric energy meter sampling circuit based on resistors and a PCB. The anti-power-frequency-interference electric energy meter sampling circuit comprises a compensation resistor R1, a manganese-copper resistor R2 and a sampling resistor R3. One end of the sampling resistor is connected with one end of the compensation resistor through the first printed board wire, and the other end of the sampling resistor is connected with the other end of the compensation resistor through the second printed board wire of the perforated wire, so that a first loop perpendicular to the plane of the PCB is formed. The two ends of the manganese-copper resistor are vertically inserted into the PCB through pins and are respectively connected with the two ends of the sampling resistor, so that a second loop perpendicular to the plane of the PCB is formed; the compensation resistor is an adjustable resistor. According to the utility model, the sum of induced currents