| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-frequency power unit, capable of supplying a high frequency current of a plurality (n) of frequencies to an induction coil for heating a material to be heated. SOLUTION: When n=2 is set, at least a capacitor 32, inverters 33, 34, and resonance capacitors 35, 36 are provided in a high-frequency power unit 30. When high-frequency powers of the frequencies output from the capacitor 35 and an induction coil 2 are generated, the inverter 33 is operated by an inverter controller 37. When high-frequency powers of the frequencies output from the capacitor 36 and the coil 2 are generated, the inverter 34 is operated by the controller 37. |
