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

Volume

2

fYear

2002

fDate

2002

Firstpage

1113

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE

Conference_Location

Dallas, TX

Print_ISBN

0-7803-7404-5

Type

conf

DOI

10.1109/APEC.2002.989383

Filename

989383