DocumentCode :
2914845
Title :
A novel ZVZCS full-bridge PWM DC-DC converter with active voltage clamp and energy recovery circuit
Author :
Sun, Tiecheng ; Zhang, Xueguang ; Tang, Pinghua ; Mei, Lin
Author_Institution :
Dept. of Electr. Eng. & Autom., Harbin Inst. of Technol., China
fYear :
2005
fDate :
6-10 Nov. 2005
Abstract :
An improved zero voltage and zero current switching (ZVZCS) full-bridge (FB) PWM DC-DC converter is proposed. The new converter overcomes drawbacks such as voltage ringing and voltage overshoot in conventional ZVZCS converter. An auxiliary circuit consists of auxiliary switcher, clamping capacitor, diode rectifier and energy recovery transformer. The auxiliary circuit alleviates the voltage ringing and voltage overshoot in secondary side of transformer and recovers the energy absorbed by clamping capacitor to the power supply in primary side. Because the auxiliary circuit is shunt to main circuit, the energy loss is very small so high efficiency of the converter is achieved. Synchronizing rectifier is used in secondary side of transformer so this converter is very attractive to low voltage, high current application. The operation, analysis, and design consideration are illustrated and verified on a 1 kW 100 kHz IGBT based experimental circuit.
Keywords :
DC-DC power convertors; PWM power convertors; PWM rectifiers; bipolar transistor circuits; bridge circuits; switching convertors; zero current switching; zero voltage switching; 1 kW; 100 kHz; IGBT circuit; ZVZCS full-bridge PWM DC-DC converter; active voltage clamp circuit; auxiliary switcher; clamping capacitor; diode rectifier; energy recovery transformer; voltage overshoot; voltage ringing; zero voltage-zero current switching; Clamps; DC-DC power converters; Pulse width modulation; Pulse width modulation converters; Rectifiers; Switched capacitor circuits; Switching circuits; Switching converters; Zero current switching; Zero voltage switching;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Electronics Society, 2005. IECON 2005. 31st Annual Conference of IEEE
Print_ISBN :
0-7803-9252-3
Type :
conf
DOI :
10.1109/IECON.2005.1569066
Filename :
1569066
Link To Document :
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