Title :
Analysis of a parallel resonant converter with secondary-side resonance
Author :
Swamy, M.M. ; Bhat, A.K.S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
fDate :
10/1/1992 12:00:00 AM
Abstract :
A high-frequency (HF) link parallel resonant DC/DC converter operating in the lagging power factor mode with the resonating capacitor on the secondary side of the HF transformer is analyzed using a state-space approach. Closed-form solutions (except for the duration of diode conduction) are obtained for steady-state conditions, and design curves are obtained. A method of obtaining optimum operating point under certain constraints is developed and is used as the basis of a simple design procedure. A theoretical study comparing the performance of three MOSFET-based 1-kW converters with different transformer turn ratios under load changes from rated-load to 10% load is carried out. Experimental results obtained with these converters with different transformer turn ratios are also presented
Keywords :
field effect transistor circuits; insulated gate field effect transistors; network analysis; power convertors; power supply circuits; state-space methods; 1 kW; DC/DC converter; HF transformer; MOSFET; design curves; lagging power factor mode; parallel resonant converter; secondary-side resonance; state-space; steady-state conditions; turn ratios; Capacitors; Diodes; Hafnium; Inductors; Partial response channels; Power engineering and energy; Power engineering computing; Reactive power; Resonance; Resonant inverters;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
