Title :
A soft-switching single-stage AC-to-DC converter with low harmonic distortion-analysis, design, simulation and experimental results
Author :
Venkatraman, R. ; Bhat, A.K.S. ; Edmunds, Mark
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
A 1-φ high frequency transformer isolated soft switching single stage AC-DC converter with low line-current harmonic distortion is presented. Its operation is explained with equivalent circuits for the various intervals. The converter is analyzed including its snubber capacitance and design curves are obtained. An optimization parameter is introduced and a systematic design procedure is illustrated with a design example. Detailed SPICE simulation and experimental results of a 250 W converter with load and line voltage variation are given to verify theory. The proposed converter employs a zero voltage transition network to ensure zero voltage switching at all loads
Keywords :
AC-DC power convertors; capacitance; equivalent circuits; harmonic distortion; high-frequency transformers; snubbers; switching circuits; 250 W; SPICE simulation; design; design curves; equivalent circuits; high frequency transformer; line voltage variation; load voltage variation; low harmonic distortion-analysis; low line-current harmonic distortion; optimization parameter; simulation; single-phase HF transformer; single-stage AC-to-DC converter; snubber capacitance; soft-switching; zero voltage switching; zero voltage transition network; AC-DC power converters; Capacitance; Circuit simulation; Design optimization; Equivalent circuits; Frequency conversion; Harmonic distortion; SPICE; Snubbers; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1998. APEC '98. Conference Proceedings 1998., Thirteenth Annual
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-4340-9
DOI :
10.1109/APEC.1998.653970
