PREVENTING LOAD REJECTION OVERVOLTAGES IN SYNCHRONOUS RECTIFIERS

摘要

The invention relates to a method for reducing load-rejecting overvoltages when operating a synchronous rectifier (29) for a multiphase alternating current having a number of inputs (60.1 to 60.5) corresponding to the number of alternating current phases (A through E) of the alternating current, and at least two outputs for providing a direct current, wherein one alternating current phase (A through E) is connected to each input (60.1 to 60.5) and each of the inputs (60.1 through 60.5) can be electrically selectively connected to either the first (B+) or the second (B-) output (using active switching elements such as MOSFETs oe IGBTs according to the requirements of control means.