RCD clamp PWM forward converter with self driven synchronous rectification

Author

Cobos, J.A. ; García, O. ; Sebastián, J. ; Uceda, J.

Author_Institution

Div. de Ingenieria Electron., Univ. Politecnica de Madrid, Spain

fYear

1993

fDate

15-19 Nov 1993

Firstpage

1336

Abstract

The forward power converter with a dissipative clamp reset network (RCD clamp) is widely used due to its simplicity. In this paper, the efficiency of this topology is increased by means of the incorporation of self driven synchronous rectification. The inclusion in the power stage of several MOSFETs affects the circuit performance. Design guidelines and optimization of this new topology are carried out in this work. A low output voltage (3.3 V) and high power density prototype has been built, featuring very high efficiency (87.5%) at very high switching frequency (700 kHz)

Keywords

field effect transistor circuits; insulated gate field effect transistors; network synthesis; power convertors; power transistors; pulse width modulation; rectifiers; rectifying circuits; semiconductor switches; switching circuits; 3.3 V; 700 kHz; 87.5 percent; MOSFETs; RCD clamp PWM forward power converter; circuit performance; design guidelines; output voltage; power density; power stage; self driven synchronous rectification; switching frequency; topology optimisation; Circuit optimization; Circuit topology; Clamps; Design optimization; Guidelines; Low voltage; MOSFETs; Network topology; Pulse width modulation; Pulse width modulation converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control, and Instrumentation, 1993. Proceedings of the IECON '93., International Conference on

Conference_Location

Maui, HI

Print_ISBN

0-7803-0891-3

Type

conf

DOI

10.1109/IECON.1993.339261

Filename

339261