电子器件2024，Vol.47Issue(1)：157-163,7.DOI:10.3969/j.issn.1005-9490.2024.01.027
一种适用于多场景的新型无变压器高降压比变换器
A Novel Transformerless Converter with High Step-Down Ratio for Multiple Scenarios
摘要
Abstract
Because the traditional Buck converter is limited by the minimum duty cycle,it can not be suitable for the scenario of high step-down ratio.Therefore,a new transformer free DC-DC converter with high step-down ratio is proposed.Firstly,the working mode and switching timing of the proposed converter are analyzed in detail.Secondly,at the control level,the switching mode of interleaved pulse width modulation is applied to the converter,which not only increases its load capacity,but also greatly reduces the voltage stress of components.The working process of the new converter with high step-down ratio is analyzed,and the parameters are designed theoret-ically.Finally,a 500/26V 430W prototype is built for experiment,and the experimental results fully prove the correctness and feasibility of the theory.关键词
高降压比/交错式脉宽调制/Buck变换器Key words
high step-down ratio/interleaved pulse/Buck converter分类
信息技术与安全科学引用本文复制引用
徐永梅,王士湖..一种适用于多场景的新型无变压器高降压比变换器[J].电子器件,2024,47(1):157-163,7.基金项目
第五期江苏省职业教育教学改革研究立项课题项目(ZYB170) （ZYB170）
