Analysis and Design of a Double-Output Series-Resonant DC–DC Converter

Author

Lo, Yu-Kang ; Yen, Shang-Chin ; Song, Tzu-Herng

Author_Institution

Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei

Volume

22

Issue

3

fYear

2007

fDate

5/1/2007 12:00:00 AM

Firstpage

952

Lastpage

959

Abstract

This paper presents a method for designing the ratio of the feedback weighting gains and the transformer secondary turns ratio of a double-output series-resonant dc-dc converter. The equivalent circuit models of the secondaries including the circuit parasitics are examined. The feedback line and load lines are drawn on a rectangular-coordinated output-voltage plane to check if the output specifications can be met. Three load ranges are classified. Then the ratio of the weighted feedback gains and the turns ratio of the transformer secondaries are determined. Design procedures are addressed. Satisfactory results on a double-output 180-W prototype are demonstrated and verified

Keywords

DC-DC power convertors; equivalent circuits; resonant power convertors; transformers; 180 W; circuit parasitics; double-output series-resonant dc-dc converter; equivalent circuit models; secondary turns ratio; transformer; weighted feedback gains; Adaptive control; Design methodology; Equivalent circuits; Frequency; Inductance; Magnetic resonance; Output feedback; Prototypes; Voltage control; Voltage-controlled oscillators; Cross-regulation; double-output series-resonant converter (SRC); secondary turns ratio; weighted feedback gains;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2007.897119

Filename

4182470