| 摘要 |
PURPOSE:To effectively suppress a harmful influence on the electromagnetic environment of a load due to the switching of an inverter by connecting the tap of a tap inductance connected to a power supply terminal in parallel to the connection point between two capacitors connected on the output side of the inverter in series. CONSTITUTION:A connection point M between capacitors C3 and C4 is connected to the tap of an inductance LT. When the connection point M is not connected to the tap, the potential of the connection point M equals the potentials of lines 7 and 8, respectively, by turning on or off the switches S1 and S3 and switches S2 and S4 each other, thus generating a high-frequency voltage between the tap of the inductance LT and the connection point M by the switching of the inverter 2 and causing the voltage between the neutral point on the side of a power supply E and the connection point M to fluctuate greatly. The tap is connected to the connection point M to suppress the fluctuation. |
