| 摘要 |
PURPOSE:To prevent cooking failure due to heating interruption by detecting a rise of intake-air temperature up to an undesired high temperature. CONSTITUTION:When a switching element 9 turns on and off through an inverter control circuit 15 and a high frequency alternating field is generated from a coil 9 so that the cooking device, is induction-heated and, for example, an intake-air temperature is increased due to a discharge air heat in the surroundings, and an intake-air signal voltage VTM related to a temperature detected by a thermistor 5 reaches a first reference temperature signal voltage V1, an output of a first comparator 19 from a high level to a low level, and a signal thereof is inputted into a display circuit 16 so that a light emitting diode 6 emits light. It is thereby possible to find that the intake-air temperature has reached a high temperature, to remove a cause of the temperature rise, and to prevent cooking failure without undesired stopping of the cooking halfway. |
