DURCHFLUSS-GLEICHSTROMUMRICHTER MIT MOMENTWERTSTROMBEGRENZUNG

摘要

In such converters, the influence of the tilt of the transistor current pulses on the duration of the current pulses is to be largely limited. For this purpose, the converter is constructed in such a manner that the limiting of the instantaneous current value is carried out by comparing a measurement voltage (Usoll-Uist) derived from the transistor current pulses (i1) with a periodic sawtooth voltage (USZ) of constant edge slope. The converter is particularly suitable for current supply devices in which a number of DC converters operate in parallel without current balancing control. <IMAGE>