| 摘要 |
PROBLEM TO BE SOLVED: To provide an induction heating apparatus having a plurality of induction heating coils, and to realize efficient heating by using an inverter smaller and more inexpensive than previously. SOLUTION: An inverter circuit is constituted of a combination of coil parts 2, 7 and 6 whose one ends are connected to a DC power source 1, a first switching element 4 connected in series with said coil parts with respect to the DC power source 1, a first capacitor 3 forming a resonance circuit with said coil parts, a second switching element 9 connected in series or parallel with said coil parts, and a series circuit of a second capacitor 8. A drive control circuit 5 is provided for alternately exercising conduction control of the first switching element 4 and the second switching element 9. The coil parts enable a combination of selection of two coils 2 and 7. |
