Title :
Analysis and design of LCL-type series resonant converter
Author_Institution :
Dept. of Electr. Eng., Victoria Univ., BC, Canada
Abstract :
A series resonant power converter modified by adding an inductor in parallel with the transformer primary (or secondary) is presented. This configuration is referred to as ´LCL-type series resonant converter´. A simplified steady-state analysis using complex circuit analysis is presented. Based on the analysis, a simple design procedure is given. Detailed experimental results obtained from a MOSFET-based 500 W converter are presented to verify the analysis. A narrow variation in switching frequency is required to regulate the output voltage constant for a very wide change in load, and the converter has load short circuit capability. It is shown that by placing the parallel inductor on the secondary-side, the parasitics of the high-frequency transformer can be used profitably.<>
Keywords :
network analysis; network synthesis; power convertors; power inductors; power transformers; power transistors; switching; transformer windings; 500 W; HF; LCL-type series resonant converter; MOSFET; circuit analysis; design; inductor; load short circuit; output voltage; parasitics; power convertors; steady-state analysis; switching frequency; transformer; windings; Circuit analysis; Frequency control; Hafnium; Inductors; Magnetic analysis; Magnetic resonance; Reactive power; Steady-state; Switching converters; Switching frequency;
Conference_Titel :
Telecommunications Energy Conference, 1990. INTELEC '90., 12th International
Conference_Location :
Orlando, FL, USA
DOI :
10.1109/INTLEC.1990.171244
