| 摘要 |
A control circuit for an inductive load, such as a phase winding (12) of a reluctance motor, includes a boost flyback converter. The controller includes a dc link capacitor (18) switchable across the load by means of a control switch (14) and a suppressor switch (16) for controlling the application of rectified current to the dc link capacitor (18). The suppressor switch (16) is operated independently of the control switch (14) in order to control the rectified current so that it follows the sinusoidal input voltage waveform. By this technique, the harmonics generated by switching the rectified input current are substantially suppressed. <IMAGE> |
