| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inexpensive induction heating device having a small circuit because neither a high-frequency transformer nor a high-frequency inductor is used. <P>SOLUTION: The induction heating device includes resonant load circuits including a heating object, and an inverter for supplying power to the resonant load circuits by converting a D.C. voltage to an A.C. voltage, wherein the inverter has upper and lower arms composed of at least two switching elements connected in series to each other, and the upper and lower arms have at least a set of upper and lower arms. The induction heating device includes at least two of the resonant load circuits, and a current flowing at the resonant frequency of the other-side resonant load circuit is superposed on a current flowing at the resonance frequency of the one-side resonant load circuit. <P>COPYRIGHT: (C)2007,JPO&INPIT |
