| 摘要 |
<p>A multi-phase current supplying circuit comprises a diode bridge (2), an intervening circuit (3a), an inverter (4), a control circuit (6) and a lightning arrester (7). A single-phase AC power supply system (1) is connected to the diode bridge (2) via the lightning arrester (7), whereby a single-phase AC voltage (Vin) is full-wave rectified. The intervening circuit (3a), which has a capacitor (31) and an inductor (32), is constituted by a choke input type of lowpass filter. Specifically, an end of the inductor (32) is connected to an end of the capacitor (31), and an output of the diode bridge (2) is received between the other end of the inductor (32) and the end of the capacitor (31), whereby a rectified voltage (Vdc) occurring across the capacitor (31) is outputted to the inverter (4).</p> |
