电源学报2024，Vol.22Issue(2)：27-35,9.DOI:10.13234/j.issn.2095-2805.2024.2.27
基于Cockcroft-Walton倍压网络的隔离型高升压比DC-DC变换器
Isolated DC-DC Converter with High Step-up Ratio Based on Cockcroft-Walton Voltage Multiplier Network
摘要
Abstract
Due to the duty cycle constraint on the traditional Boost converter,its applications to high-voltage-gain power supply are limited to certain degree.In this paper,a DC-DC converter with high voltage gain based on an isolated Boost converter and Cockcroft-Walton voltage multiplier cell(VMC)is studied,and its working principle and character-istics are analyzed.This converter achieves a conversion with an ultra-high step-up ratio by integrating the isolated Boost converter with the VMC.Compared with the traditional Boost converter,this topology has a high voltage gain in a low duty cycle,a low voltage stress of active switching device,and a simple control circuit with one single switch.Finally,a 35 W prototype with an efficiency of 89.5％was built to achieve a high step-up conversion from 24 V to 1 000 V,and the theoretical analysis results was verified by experimental results.关键词
DC-DC变换/高电压增益/Cockcroft-Walton电压倍增单元/升压变换器/单开关Key words
DC-DC converter/high voltage gain/Cockcroft-Walton voltage multiplier cell/Boost converter/single-switch分类
信息技术与安全科学引用本文复制引用
包鹏,刘雪山,多佳琦,张荣飞,王春涛..基于Cockcroft-Walton倍压网络的隔离型高升压比DC-DC变换器[J].电源学报,2024,22(2):27-35,9.基金项目
国家自然科学基金资助项目(62371320)This work is supported by National Natural Science Foundation of China under the grant 62371320 （62371320）
