Title :
Zero voltage switching Forward-Flyback Converter with efficient active LC snubber circuit
Author :
Chen, Fan ; Amirahmadi, Ahmadreza ; Batarseh, Issa
Author_Institution :
Dept. of Electr. Eng., Univ. of Central Florida, Orlando, FL, USA
Abstract :
This paper describes a Boundary Mode Forward-Flyback Converter (BMFFC) with zero-voltage switching that is able to process power efficiently. The theoretical analysis and operating principle of the BMFFC are presented in detail. A non-dissipative LC snubber that recycles energy to the input source is employed in order to suppress the voltage spike caused by the leakage inductance of the transformer. The relatively large snubber capacitor also significantly reduces turn-off loss. Following a detailed design procedure, a 200W prototype with a 25-50VDC input and 230VDC output was constructed and tested in order to evaluate the performance of the BMFFC.
Keywords :
LC circuits; capacitors; network synthesis; power supply quality; snubbers; switching convertors; transformers; zero voltage switching; BMFFC; boundary mode forward-flyback converter; efficient active LC snubber circuit; leakage inductance; nondissipative LC snubber; performance evaluation; power 200 W; snubber capacitor; transformer; turn-off loss reduction; voltage 230 V; voltage 25 V to 50 V; voltage spike suppression; zero voltage switching forward-flyback converter; Capacitors; Inductance; Inductors; MOSFET; Magnetic resonance; Snubbers; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2014 Twenty-Ninth Annual IEEE
Conference_Location :
Fort Worth, TX
DOI :
10.1109/APEC.2014.6803587
