| 摘要 |
PURPOSE: To provide a power source circuit for inverter device which is reduced in both size and weight and the output voltage of which does not fluctuate even when the load of an inverter device fluctuates. CONSTITUTION: In a power source circuit which supplies a DC voltage to a driving means 5 for driving a switching means 6 and an operation control means 3, a first high-frequency power source circuit 13 which supplies the DC voltage to the driving means 5, second high-frequency power source circuit which supplies the DC voltage to the operation control means 3, and switching circuit 18 which switches the circuits 13 and 14 to each other by using one common transistor are provided and a bleeder resistor is connected to one of the four outputs of the first high-frequency power source circuit 13. |
