| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electromagnetic cooker which can suppress a quantity of a coil current applied to each heating coil though uniformity of temperature distribution on a heated body bottom face and increase in power are achieved. <P>SOLUTION: A control circuit 3 that controls a plurality of high-frequency power generation circuits 2a-2c for individually driving a first heating coil 4a and a second and a third heating coils 4b, 4c disposed outside the first heating coil 4a. The control circuit 3 simultaneously drives the plurality of high-frequency power generation circuits 2a-2c while continuously and periodically changing output power ratios of the first, second and third heating coils 4a, 4b, 4c thereby to periodically change convection in a liquid cooking object. Accordingly, the whole area of the heated body bottom face is continuously heated thereby to uniform heat distribution on the heated body bottom face as. Further, periodically changing convection is generated in the liquid cooking object heated through the heated body thereby to uniform a temperature of the cooking object. Consequently, cooking properties are improved. <P>COPYRIGHT: (C)2012,JPO&INPIT |
