| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an induction heating cooker with an improved heating efficiency while suppressing cost increase as much as possible. <P>SOLUTION: An induction heating cooker comprises an inner heating coil 1 arranged below a top plate, an outer heating coil 2 provided on an outer periphery of the inner heating coil 1, a first inverter circuit 5 supplying a high frequency current to the inner heating coil 1, a second inverter circuit 7 supplying a high frequency current to the outer heating coil 2, and a control circuit 31 for controlling the first and second inverter circuits 5 and 7. The control circuit 31 drives only the first inverter circuit 5 when a setting power is not more than a predetermined power, and drives the first and second inverter circuits at the same time when the setting power is larger than the predetermined power. The first inverter circuit is constituted by a wideband gap semiconductor. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
