| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control method of an induction heating inverter composed of a direct current power source, an inverter main circuit formed by bridging a self arc-extinction type element and a reversed parallel circuit of diodes, a resonance circuit composed of a heating coil and a resonance capacitor, and a control circuit controlling the inverter main circuit. <P>SOLUTION: The induction heating inverter is equipped with an electric power arithmetic unit 31, a γ-angle measuring circuit or the like as a control circuit 30 replacing a conventional control circuit 10. The electric power arithmetic unit 31 finds an arithmetic value of a heating power of a pot 21 by a detected value of a direct current voltage detector 6, a detected value of an alternating current voltage detector 8, and a γ-angle obtained at a γ-angle measuring circuit 32. By controlling the induction heating inverter depending on the arithmetic value, the conventional direct current detector is omitted to reduce a total size of the device and save cost. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
