Title :
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
fDate :
5/1/2007 12:00:00 AM
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;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2007.897119
