电源学报2026，Vol.24Issue(2)：30-39,10.DOI:10.13234/j.issn.2095-2805.2026.2.30
宽范围双输出Buck-Boost变换器设计与分析
Design and Analysis of Wide-range Dual-output Buck-Boost Converter
摘要
Abstract
To solve the problem of a small output voltage range in single-inductor dual-output Buck-Boost converters,a quadratic unit structure is introduced in this paper,which is the voltage gain by Di/(1-Di)times and significantly expand the voltage range.According to the working state of the power supply inductor,the power supply modes of the converter can be divided into four types,i.e.,complete inductor supply mode,incomplete inductor supply mode,dual-branch supply mode and single-branch supply mode.The voltage gain,ripple voltage and critical inductance values between each mode of the four power supply modes are calculated.The converter has four output states,i.e.,Boost,Buck,Boost-Buck and constant-voltage,and the duty cycle conditions in each output state are derived.Finally,experiments were conducted in four power supply modes and four output states of the converter,proving that the theoretical analysis is correct and the performance of the converter is reliable.关键词
双输出/Buck-Boost变换器/供能模式/纹波电压Key words
Dual-output/Buck-Boost converter/power supply mode/ripple voltage分类
信息技术与安全科学引用本文复制引用
房绪鹏,朱存良,张允续,黄乐玉..宽范围双输出Buck-Boost变换器设计与分析[J].电源学报,2026,24(2):30-39,10.基金项目
山东省重点研发计划资助项目(2019GGX103049)This work is supported by Shandong Key Research and Development Program under the grant 2019GGX103049 （2019GGX103049）
