| 摘要 |
PROBLEM TO BE SOLVED: To enable an induction heating device, supplying high-frequency current to a heating coil by an inverter, to supply an appropriate direct-current input voltage in accordance with input power of the inverter in a simple circuit structure, and to operate the inverter in high efficiency. SOLUTION: The device is provided with a diode series circuit 21 consisting of a first and a second diodes 21A, 21B, a single-phase AC power source 10 with one end connected to a connecting point of the diodes 21A, 21B, a first capacitor 41A connected in series with the first diode 21A and the single-phase AC power source 10, a second capacitor 41B connected in series with the second diode 21B and the single-phase AC power source 10, at least one inverter 50A with the first capacitor 41A as a DC intermediate capacitor, and at least one inverter 50B with the second capacitor 41B as a DC intermediate capacitor. COPYRIGHT: (C)2008,JPO&INPIT
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