东南大学学报（英文版）2021，Vol.37Issue(3)：258-263,6.DOI:10.3969/j.issn.1003-7985.2021.03.004
基于二次滤波器和自适应电压调节的降压变换器稳定性技术
Buck converter stability techniques for secondary filters and adaptive voltage positioning
姚苏毅 1姜建国1
作者信息
- 1. 上海交通大学电子信息与电气工程学院,上海200240
- 折叠
摘要
Abstract
To reduce output voltage noise and improve dynamic response performance,this study designed a buck converter on the basis of secondary filters and adaptive voltage positioning(AVP).A hybrid control method was proposed for the compensation of the secondary filter.The introduction of a high-frequency feedback path,in addition to the traditional feedback path,effectively improved the influence of the secondary filter on the loop stability and direct current regulation performance.A small-signal model of the buck converter based on the proposed control method was derived,and the stability and selection of control parameters were analyzed.AVP is realized using an easy-to-implement and low-cost control method that was proposed to improve dynamic response performance by changing the low-frequency gain of the control loop and load regulation of the output voltage.The experimental results of the buck converter showed that the proposed method effectively reduced the output voltage noise by 50％ and improved the dynamic response capability to meet the target requirements of mainstream electronic systems.关键词
降压变换器/二次滤波器/自适应电压调节/输出电压噪声/小信号模型Key words
buck converter/secondary filter/adaptive voltage positioning (AVP)/output voltage noise/small-signal model分类
信息技术与安全科学引用本文复制引用
姚苏毅,姜建国..基于二次滤波器和自适应电压调节的降压变换器稳定性技术[J].东南大学学报（英文版）,2021,37(3):258-263,6.
