Title :
High power factor operation of discontinuous current mode series-parallel resonant converter
Author :
Belaguli, Vijayakumar ; Bhat, A.K.S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
fDate :
30 Oct-3 Nov 1994
Abstract :
This paper presents the operating principle, analysis, design, simulation and experimental results for a high frequency (HF) transformer isolated AC-to-DC series-parallel resonant converter (SPRC) operating on the utility line, in discontinuous current mode (DCM). The equivalent models, the state space analysis of the SPRC in DCM are presented. PROMATLAB software is used to solve the equations and to obtain important design parameters. SPICE simulation and experimental results obtained from a 150 W prototype are presented to verify the analysis. High power factor operation (>0.99) with low harmonic distortion (<15%) have been achieved for the entire load range even without active control, in addition to eliminating switching losses
Keywords :
AC-DC power convertors; SPICE; circuit analysis computing; harmonic distortion; high-frequency transformers; losses; power factor; resonant power convertors; state-space methods; switching circuits; 150 W; HF transformer isolated AC-to-DC converter; PROMATLAB software; SPICE simulation; discontinuous current mode; equivalent models; high frequency transformer; high power factor operation; low harmonic distortion; series-parallel resonant converter; simulation; state space analysis; switching losses elimination; Analytical models; Equations; Frequency conversion; Hafnium; Reactive power; Resonance; SPICE; Software prototyping; State-space methods; Virtual prototyping;
Conference_Titel :
Telecommunications Energy Conference, 1994. INTELEC '94., 16th International
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-2034-4
DOI :
10.1109/INTLEC.1994.396643
