| 摘要 |
This invention relates to an induction heating apparatus including a digitized control circuit and digitizing the ON/OFF control circuit for a switching element which has hitherto utilized the R-C time constant, thereby eliminating the defects, such as a change in the R-C time constant with the time ageing and non-stabilization of the heating output accompanied by a temperature change. Since the digitized control circuit can be a monolithic integrated circuit, the apparatus as a whole can be miniaturized or smaller in thickness and inexpensive to produce. Furthermore, the induction heating apparatus realizes by the digitized control circuit quick overcurrent protection, exact detection of unsuitable load, prevention of noise generation, and facility of design corresponding to various power supply voltage.
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