| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooker capable of heating non-magnetic loads, not necessary to increase breakdown voltage of an element, optimally discriminating propriety of heating a load coping with various conditions related to discrimination of the propriety of heating the load by switching coils. SOLUTION: The induction heating cooker comprises a switching means 9 selecting a state A of a first combination of coils or a state B of a second combination of coils of an inverter part 3; an input current detecting means 12 detecting an input urrent of the inverter part 3, a coil current detection means 14 detecting the high-frequency current; a discrimination criteria means 17 functioning as discrimination criteria of the propriety of heating the load; and a control means 16 controlling above means, discriminating the propriety of heating the load depending on the judging standard of the discrimination criteria means 17 and the output of the input current detection means 12 and the coil current detection means 14. The discrimination criteria means 17 has a plurality of discrimination criteria 17a, 17b, and the control means 16 switches the discrimination criteria 17a, 17b in compliance with the state of the switching means 9. COPYRIGHT: (C)2005,JPO&NCIPI |
