A novel ZVZCS full-bridge PWM DC-DC converter with active voltage clamp and energy recovery circuit

被引：0
|
作者：
Sun, TC
Zhang, XG
Tang, PH
Mei, L
机构：
来源：
IECON 2005: THIRTY-FIRST ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY, VOLS 1-3 | 2005年
关键词：
voltage clamp; energy recovery; ZVZCS;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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 circuits 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 1kW 100kHz IGBT based experimental circuit.
引用
收藏
页码：1144 / 1148
页数：5
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