Structure of control power supply of electric power carrier communication system

The utility model discloses the structure of the control power supply of an electric power carrier communication system, which comprises a shell, a carrier part and a power supply part. The carrier part and the power supply part are arranged in the shell. The carrier part comprises a carrier input and modulation/demodulation unit, a carrier high-frequency power amplification unit and a signal detection and light modulation unit, wherein the carrier input and modulation/demodulation unit, the carrier high-frequency power amplification unit and the signal detection and light modulation unit are sequentially connected each other. The power supply part comprises an input and EMI suppression circuit, a PFC circuit, a half-bridge resonant buck circuit and a constant current/light modulation drive circuit, wherein the input and EMI suppression circuit, the PFC circuit, the half-bridge resonant buck circuit and the constant current/light modulation drive circuit are sequentially connected each other. According to the