HIGH FREQUENCY HEATING DEVICE

摘要

PROBLEM TO BE SOLVED: To remarkably raise cognition in a sound device of a high frequency heating device, concerning a control circuit and a microcomputer control of the sound device of the high frequency heating device. SOLUTION: In the high frequency heating device, the cognition of a buzzer sound is greatly raised by combining a microcomputer 1 and a buzzer drive circuit 5, and a voltage which is applied to the buzzer 4 is time-serially changed to give a reverberation.