Forward conventer

Abstract

Abstract Forward converters are specified in which MOSFETS, used instead of diodes, are controlled in synchronism with the clock switch (2) by the same control signal. In this case, the MOSFET (4) enabling the freewheeling circuit is driven inversely with respect to the clock switch (2). In the case of converters having potential isolation, an additional potential isolation (16) is provided in the control supply line to the MOSFETS arranged on the secondary side of the isolating transformer. The invention enables MOSFETS to be used for improving efficiency even in forward converters which have no isolating transformers. When isolating transformers are used, special control windings for the MOSFETS are dispensed with. <IMAGE>

Inventors

• 👤 Werner Wölfel

Bibliographic Details