複合共振負荷回路を用いた誘導加熱用ZCS高周波インバータ

抄録

We have reported a ZCS high frequency inverter for induction heating uses elsewhere. Its load circuit is composed of a parallel tuned tank load circuit having a heating coil with relatively small inductance, leading to limited applications for the inverter. This paper presents a duplicated tuned load circuit to deal with a tank load having a heating coil with a higher inductance, to widen application range of the inverter. It is found that the high frequency inverter having the improved tank load circuit reveals a high efficiency reaching 89 percent. Its circuit operation and performance are analyzed on the basis of computer-aided simulation and its actual behaviors are examined from a practical point of view for a feasible breadboard.