| 摘要 |
PURPOSE:To prevent the abnormal oscillation of an inverter circuit. CONSTITUTION:An AC power supply is rectified by a diode bridge DB1. The voltage conversion of the rectified output is conducted by a chopper circuit 1. The converted voltage is converted into an AC voltage by an inverter circuit 2. The AC power is supplied from the inverter circuit 2 to a load 5. After the operation of the chopper circuit 1, the inverter circuit 2 is operated, and at the point of time when the output of the chopper circuit 1 is stabilized, the inverter circuit 2 is operated. Thus, an abnormal oscillation can be prevented from being caused by the transient change of the output voltage of the chopper circuit 1 as the power supply to the inverter circuit 2. |
