GENERATION OF HIGHLY ACCURATE AND HIGHLY DYNAMIC DIRECT CURRENTS FROM A RECTIFIER GROUP AND AN ACTIVE FILTER WHICH IS CONNECTED IN PARALLEL WITH THE LOAD FOR SMOOTHING PURPOSES

摘要

A power supply system for generating highly accurate and highly dynamic direct currents comprises a rectifier group and an active filter which is connected in parallel with the load at the output for smoothing purposes. In order to control and regulate the voltage of the rectifier group (SR1, SR2) and of the active filter, a control section is set up in each case, these control sections firstly ensuring that the average current value of the active filter current is adjusted to zero and that a harmonics-free output voltage can be provided by suitable pilot control signals USG. The use of such control and regulation systems means a passive filter at the output of the rectifier group can be completely dispensed with while at the same time making use of the advantages which are produced in terms of losses and outlay on components by the use of a bipolar clock bridge.