Title :
High power factor operation of DCM series-parallel resonant converter
Author :
Belaguli, V. ; Bhat, A.K.S.
Author_Institution :
Dept. of Electr. Eng., Singapore Polytech., Singapore
fDate :
4/1/1999 12:00:00 AM
Abstract :
This work presents the operating principle, analysis, design, simulation, and experimental results for a high frequency (HF) transformer isolated single stage ac-to-dc series-parallel resonant converter (SPRC) operating on the utility line, in discontinuous current mode (DCM). The equivalent circuit models and 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. SPICE3 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 (<18%) have been achieved for the entire load range even without active control, in addition to eliminating switching losses
Keywords :
AC-DC power convertors; SPICE; equivalent circuits; harmonic distortion; power engineering computing; power factor; resonant power convertors; state-space methods; DCM series-parallel resonant converter; HF transformer isolated; PROMATLAB software; SPICE3 simulation; design parameters; discontinuous current mode; equivalent circuit models; high power factor operation; low harmonic distortion; operating principle; single stage AC-DC converter; state space analysis; switching losses elimination; Analytical models; Circuit simulation; Equations; Equivalent circuits; Frequency conversion; Hafnium; Reactive power; Resonance; Software prototyping; State-space methods;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
