摘要
该文提出一种适用于模块并联工作的高效率的同步整流驱动电路.采用这种驱动电路,同步整流的波形和驱动损耗可以做到和自驱动一样的效果,同时又解决了多个模块并联时会产生短路的问题.此外,采用这种驱动电路还可以调节驱动电压幅度的高低.文中从时域和频域两个角度对此电路进行了详细的原理分析.采用所推荐驱动电路的36～75V输入,1.8V/600A输出,四分之一砖标准的模块电源效率高达90%以上.最后,仿真结果验证了该电路调节同步整流驱动电压幅度的功能.
Paper presents a synchronous rectifier driving scheme, which not only solves the problem of short circuit when modules run in parallel but also keeps synchronous rectifier driving performance same as that of self-driven. In addition, amplitude of synchronous rectifier driving voltage can be adjusted by adopting the proposed circuit. The principle of operation and the characteristics of the scheme are analyzed in time domain and frequency domain, and verified on a 36V-75V input 1.8V/60A output experimental prototype, whose size is 1/4 brick and efficiency is above 90% at rating condition.Finally, simulation results verify the function of adjusting driving voltage amplitude of synchronous rectifier.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2005年第4期25-29,共5页
Proceedings of the CSEE
基金
国家自然科学基金重点项目(50237030ZD)~~
