| 摘要 |
A direct current changer has an electronic switch conductively controllable by switch-on pulses and current limitation ensured by suppressing switch-on pulses. In order to do with a low loss, easy to implement current sensor, a direct voltage that corresponds to the maximal value of the current is obtained by means of an additional switch, in phase with the electronic switch, which is preferably a reverse operated field effect transistor. The changer is particularly useful in applications in which low impedance short-circuits at the output of the changer must be taken into account. |
