电工技术学报2018，Vol.33Issue(2)：284-292,9.DOI:10.19595/j.cnki.1000-6753.tces.161078
一种零输入电流纹波高增益DC-DC变换器
A High Step-up DC-DC Converter with Zero Input Current Ripple
摘要
Abstract
A high step-up DC-DC converter with zero input current ripple is proposed in this paper. The converter has two coupled inductors. One is combined with an inductor and a capacitor, and then paralleled with the input side, which can eliminate the input current ripple while the zero ripple condition is independent of duty ratio. The other realizes the function of high step-up, and improves the voltage gain by voltage doubling circuit combining to the secondary winding; due to the leakage inductance of this coupled inductor, the diode reverse recovery loss is almost zero, and the efficiency of the converter is improved. Two active switches of the converter conduct complementarily to realize zero-voltage-switching turn-on operation and reduce the switch turn-off voltage spikes. The efficiency of the converter can be further improved by choosing low-voltage rated switches. Finally, a 250W prototype is built to verify the zero input current ripple of the converter and high step-up high efficiency.关键词
零纹波/高增益/低电压应力/耦合电感Key words
Zero ripple/high step-up/low voltage stress/coupled inductor分类
信息技术与安全科学引用本文复制引用
高伟,罗全明,张阳,吕星宇,周雒维..一种零输入电流纹波高增益DC-DC变换器[J].电工技术学报,2018,33(2):284-292,9.基金项目
国家自然科学基金资助项目(51577019). （51577019）
