| 摘要 |
A power conversion device (1) is configured from an inductor (L) connected in series to an alternating-current power source (20) and a load (30), a full-bridge MERS (100) connected in parallel to the load (30), a control circuit (110), a current direction switching unit (200) connected in series between the inductor (L) and the load (30), and an ammeter (300). The control circuit (110) feeds back the current detected by the ammeter (300), repeatedly switches on and off one pair corresponding to the positive/negative of the output of the alternating-current power source (20), out of a pair of inverse-conductive semiconductor switches (SW2, SW3) and a pair of inverse-conductive semiconductor switches (SW1, SW4) which configure the full-bridge MERS (100), and keeps the other pair off. |
