| 摘要 |
A load (R2) is short-circuited by an electronic switch (T1) operated by a controller (6) in cycles via a parallel current path (7) with lower Ohm resistance than the load. As the switch-on to switch-off time cycle ratio increases for the switch in the short-circuiting current path, the voltage (U) coupled to the load decreases in a time device but increases, as the cycle ratio of the switch gets lower. |
