| 摘要 |
PROBLEM TO BE SOLVED: To provide a control unit for an inverter device, which makes its standby power consumption zero by a simple circuit structure at a low cost. SOLUTION: In a control unit for an inverter device, a control circuit 13 and an inverter motor drive circuit 5 which drives on a control signal S1 from the control circuit 13 are connected making their reference potential (negative potential) common and a voltage level conversion of the control signal S1 needless, and by providing a switching means which is constituted of a contact of a relay 7 and a push-button switch 8 between an AC power supply 1 and a power supply filter circuit 3, power consumption of the control unit for the inverter device at a non-operational time, so-called standby power consumption, is made zero. |
