| 摘要 |
A power converter includes an inverter circuit for superimposing a generated voltage on an AC input voltage, a diode bridge full-wave rectifying circuit connected to the inverter circuit, smoothing capacitors connected between DC output terminals of the rectifying circuit, short-circuit switches connected to the rectifying circuit, a rectification mode changing circuit connected to the rectifying circuit, a short-circuit switch control circuit for maintaining the short-circuit switches in an on state in a short-circuit phase range, a rectification mode control circuit for maintaining the rectification mode changing circuit in an off state in the short-circuit phase range and an inverter control circuit for PWM-controlling the inverter circuit so that an output voltage of the rectifying circuit follows a target output voltage when the rectification mode changing circuit is in the off state. |
