| 摘要 |
PROBLEM TO BE SOLVED: To obtain an induction heating device capable of heating a heated object in optimum conditions by supplying a required power to each heating coil through fine individual adjustment of applied powers for a plurality of heating coils. SOLUTION: A current flowing in each heating coil 4a, 4b, 4c is detected by each current detector 6a, 6b, 6c and the values are inputted into a control device 10. The control device 10 controls currents flowing in each heating coil 4a, 4b, 4c so as to be the same as a reference current value by fine tuning capacitance of each serial variable capacitor 8a, 8b, 8c in accordance with large and small values between actual values of currents flowing in each heating coil 4a, 4b, 4c and the reference current values found from powers needed for heating each heated object 9a, 9b, 9c and increasing and decreasing a current flowing in each heating coil 4a, 4b, 4c. COPYRIGHT: (C)2003,JPO
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