Power Transmission System

Abstract

To provide a transmission system having an impedance matching function to operate with signals different from out of period only within a predetermined period capable of canceling the load reactance while preventing thermal destruction of the resonant inverter in an unsteady state with a rapid decrease in load reactance.SOLUTION: A transmission system 10 includes; a power transmission circuit 11 for transmitting AC power to a load RL; an automatic matching circuit 12 which has two or more switching elements SW1, SW2 and one or more capacitors C1, C2 and matches between the transmission circuits and the loads; a driving circuit 13 for driving the switching element by outputting driving signals; and a reactance detection circuit 14 that detects the reactance of the load.SELECTED DRAWING: Figure 1