Power control system and power control method for radio frequency treatment equipment

The invention relates to a power control system for human body radio frequency treatment equipment, and belongs to the technical field of medical instruments. The power control system comprises a single-chip microcomputer circuit, a nonvolatile memory, a photoelectric isolation circuit, an A/D (Analogue/Digital) conversion circuit, a D/A (Digital/Analogue) conversion circuit, a radio frequency sine wave generation circuit, a signal amplitude control circuit, a buffer amplification circuit, a driver transformer, a power amplification circuit, an output transformer, a current transformer, a voltage transformer, a current signal buffer amplification circuit, a voltage signal buffer amplification circuit and an RMS-DC (Root Mean Square-Direct Current) conversion circuit. According to the power control system, the problems of great power control error and inter-impedance power error in the prior art can be solved, and the error within the impedance range of 50 to 350 Ohms is superior to +/-0.2W or +/-5 percent.