INDUCTION HEATING DEVICE

摘要

PURPOSE: To provide such an induction heating device as being capable of stably operating when DC power voltage is extremely low and always reducing the loss of a transistor. CONSTITUTION: A DC power supply 2, an inverter circuit 3a to invert DC power into high frequency power with the drive of a transistor 32 and a control circuit 5 to divide and smooth collector voltage on the transistor 32, compare the divided voltages with each other and drive the transistor 32 in accordance with the comparison result are provided.