| 摘要 |
PURPOSE:To prevent the destruction of a switching element at the time of ispecting an inverter circuit and a control circuit. CONSTITUTION:Power supply connecting means, mounting an inverter circuit 1 and a control circuit 2 for controlling this inverter circuit 1 to a sheet of printed board 3 and also connecting a power supply to these inverter circuit 1 and control circuit 2, are respectively provided. The power supply connecting means for connecting the power supply to the inverter circuit 1 and the power supply connecting means for connecting the power supply to the control circuit 2 are individually constituted of current fuses 4, 5, to provide a constitution the power supply of the inverter circuit 1 can be separated from the power supply of the control circuit 2, and also providing a safety function in the power supply connecting means. The printed board 3 is inspected by applying operating lower limit voltage to the inverter circuit 1 and rated voltage to the control circuit 2, in a condition that the power supply connecting means is not mounted to the inverter circuit 1 and the control circuit 2. |
