Title :
A novel forward configuration for off-line applications: two-switch built-in input filter forward converter (2SBIFFC)
Author_Institution :
Power Electron. Section, Chun-Shan Inst. of Sci. & Technol., Taiwan
Abstract :
Employing the transformer leakage inductance, two clamped diodes and two cross-coupled capacitors, a two-switch built-in input filter forward converter (2SBIFFC) configuration is proposed. This configuration is equivalent to the conventional two-switch forward converter (2SFC) with an input filter. It provides a comprehensive solution to perform core reset, turn-off snubber, voltage-clamped and input filter functions with minimum component count. Consequently, low voltage stress, nonpulsating input current, and high efficiency performance can be achieved. In this paper, the circuit operation is analyzed by examining the PSpice simulation waveforms and an experimental circuit of a 100 kHz, 5 V/20 A converter, which was breadboarded for performance evaluation, is described
Keywords :
DC-DC power convertors; SPICE; capacitors; circuit analysis computing; filters; inductance; semiconductor diodes; snubbers; transformers; 100 kHz; 20 A; 5 V; PSpice simulation waveforms; clamped diodes; core reset; cross-coupled capacitors; high efficiency performance; high frequency DC-DC converters; input filter function; low voltage stress; nonpulsating input current; off-line applications; performance evaluation; snubber turn-off; transformer leakage inductance; two-switch built-in input filter forward converter; voltage-clamped function; Capacitors; Circuit analysis; Diodes; Filters; Inductance; Low voltage; Performance analysis; Snubbers; Stress; Transformer cores;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1996., Proceedings of the 1996 IEEE IECON 22nd International Conference on
Conference_Location :
Taipei
Print_ISBN :
0-7803-2775-6
DOI :
10.1109/IECON.1996.566021
