Title :
An LCLC resonant DC-DC converter with PWM control-analysis, simulation, and implementation
Author :
Singh, Kamal J. ; Bachmann, Guido ; Doradla, S.R. ; Mutschler, Peter ; Ghosh, Rajesh
Author_Institution :
Indian Inst. of Technol., Kanpur, India
Abstract :
A four-element (LCLC) resonant DC-DC power converter is presented. Equal ratios of resonant inductors and capacitors seem to provide overall optimum performance. The steady state characteristics using simple AC circuit analysis shows that the four-element resonant converter exhibits load-independent operation at two switching frequencies. The performance characteristics are obtained for a given set of design parameters. Closed-loop control of output voltage is explained with a block diagram. The converter is implemented close to a switching frequency of 100 kHz with the output voltage varied by pulse width modulation (PWM). The experimental results agree well with the Saber simulation results
Keywords :
DC-DC power convertors; PWM power convertors; closed loop systems; control system analysis; power capacitors; power inductors; resonant power convertors; switching circuits; voltage control; 100 kHz; AC circuit analysis; PWM; block diagram; capacitors; closed-loop output voltage control; design parameters; four-element resonant DC-DC power converter; load-independent operation; optimum performance; performance characteristics; pulse width modulation; resonant inductors; steady state characteristics; switching frequencies; Capacitors; Circuit analysis; DC-DC power converters; Inductors; Pulse width modulation; Pulse width modulation converters; Resonance; Steady-state; Switching converters; Switching frequency;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-7404-5
DOI :
10.1109/APEC.2002.989383
