摘要
为了提高谐振复位正激变换器同步整流自驱动电路的效率,提出一种新型高效快速自驱动电路,使得电路中续流开关管驱动的电压迅速建立,同时减少变换器的功耗,并给出新驱动电路工作原理和仿真与实验结果。论文最后对3.3V输出电压谐振复位正激变换器进行设计分析和实验分析,结果表明所提方案续流管的开通速度比现有方案驱动来得快,减少开关损耗和死区时间,提高了整机效率。
A new gate-driver scheme is proposed in this paper to improve the efficiency of the self-driven synchronous rectifiers for a resonant reset forward converters.The scheme possesses fast setting-up rate of the driving voltage of the freewheeling and decrease the power losses in the converter.The operation principle,simulation and experiment results are presented in this paper.Design consideration and experimental results are also provided for 3.3V output voltage converters.The proposed gate-driving scheme for a resonant reset forward topology can operate with high slew rate.Then the SRs in this case can be driven properly and a higher efficiency can be obtained.
出处
《电工技术学报》
EI
CSCD
北大核心
2010年第12期118-123,共6页
Transactions of China Electrotechnical Society
基金
国家自然科学基金资助项目(60572016)
