| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an induction heating cooker which inhibits firing and smoking of a component caused by applying a high voltage to a control means when the high voltage is applied to a transistor. <P>SOLUTION: The induction heating cooker comprises a heating coil 6 generating high frequency magnetic field, a transistor 8 for applying a high frequency current to the heating coil, a control means 12 controlling the transistor to be turned on or off, an overcurrent protection means 13 inserted between the control means 12 and the control electrode of the transistor 8, and an overvoltage protection means 14 inserted between the control electrode of the transistor 8 and the emitter electrode. Thus, when the transistor is broken and the high voltage is applied to the control electrode of the transistor, firing and smoking in components of the control means 12 caused by applying the high voltage to the control means 12 is inhibited because of operations of the overcurrent protection means 13 and the overvoltage protection means 14, thereby improving reliability. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
