一种新型自驱动同步整流电路
|
摘要
提出了一种新型的自驱动同步整流电路拓扑。该拓扑具有自驱动较强的驱动能力,驱动效果与传统的自驱动同步整流一致,并且可以在一定范围内调节驱动电压的幅值,减小驱动损耗,同时还适用于多个电源模块并联使用而不发生母线短路的情况。分析了该拓扑的工作原理,并以75 W双管正激变换器为样机,输入300 V,输出5 V/15 A.实验验证了所提电路拓扑的有效性,样机效率达到87.6%。
A novel self-driven synchronous rectification topology is proposed.The proposed topology has a strong driving capability, whose driving effect is almost same as traditional self-driven.What's more, it is able to adjust the amplitude of driving voltage in a certain range,which reduces driving consumption.Meanwhile,the proposed topology is suitable for the parallel use of a plurality of power supply modules without bus short circuit.The 75 W dual-switch forward converter is used as the prototype, input 300 V, output 5 V/15 A.The experimental results verify the validity of the proposed topology and the efficiency of the prototype is 87.6%.
A novel self-driven synchronous rectification topology is proposed.The proposed topology has a strong driving capability, whose driving effect is almost same as traditional self-driven.What's more, it is able to adjust the amplitude of driving voltage in a certain range,which reduces driving consumption.Meanwhile,the proposed topology is suitable for the parallel use of a plurality of power supply modules without bus short circuit.The 75 W dual-switch forward converter is used as the prototype, input 300 V, output 5 V/15 A.The experimental results verify the validity of the proposed topology and the efficiency of the prototype is 87.6%.
引文
[1]Y Gu,L Hang,G Huang,et al.A Novel Charge Retention Circuit for Synchronous Rectifiers[A].APEC'06[C].2006:8946707.
[2]X Xie,J M Zhang,G Luo,et al.An Improved Self-driven Synchronous Rectification for a Resonant Reset Forward Converter[A].A PEC'03[C].2003:348-351.
[3]Y Gu,Z Lu,Z Qian,et al.A Novel Driving Scheme for Synchronous Rectifier Suitable for Modules in Parallel[J].IEEE Trans.on Power Electronics,2005,20(6):1287-1293.
[4]X Xie,J C P Liu,F N K Poon,et al.Voltage-driven Synchronous Rectification in Forward Topology[A].IPEMC2000[C].2000:100-105.
[2]X Xie,J M Zhang,G Luo,et al.An Improved Self-driven Synchronous Rectification for a Resonant Reset Forward Converter[A].A PEC'03[C].2003:348-351.
[3]Y Gu,Z Lu,Z Qian,et al.A Novel Driving Scheme for Synchronous Rectifier Suitable for Modules in Parallel[J].IEEE Trans.on Power Electronics,2005,20(6):1287-1293.
[4]X Xie,J C P Liu,F N K Poon,et al.Voltage-driven Synchronous Rectification in Forward Topology[A].IPEMC2000[C].2000:100-105.