Induction heating apparatus

摘要

An induction heating apparatus comprises a DC power source, a series resonant circuit of a heating coil and capacitance connected between the terminals of the DC power source, a diode connected in parallel with the capacitor and in polarity-reversed relation to the DC power source, a transistor having a collector-emitter path connected in parallel with the capacitor, and a control circuit for controlling the conductive state of the transistor in accordance with the magnitude and direction of a current flowing through the heating coil.