| 摘要 |
DC 5V shared with a shaver is inputted into a step-up circuit (7) of a cleaner from a terminal (3a) of and AC adapter (3). When an oscillation circuit (OS1) turns on/off an FET (Q1), the voltage is stepped up by using a choke coil (L2), and the charge is accumulated in a capacitor (C1). By using DC 24V of the step-up result outputted from the capacitor (C1), an electromagnetic induction heating circuit (18) allows an FET (Q2) to turn on/off the current flowing through a coil (L1), the blade edge of the shaver is induction-heated. In this case, by applying a trigger pulse of the oscillation circuit (OS1) through an inverter (INV) to the FET (Q2), the duty of the step-up circuit (7) is high, and that of the electromagnetic induction heating circuit (18) is low. |
