A Robust Cross-Regulation-Suppressed Single-Inductor Multiple-Output DC-DC Converter with Duty-Regulated Comparator Control

被引：0
|
作者：
Zheng, Yanqi [1 ,2 ,3 ]
Ho, Marco [1 ]
Leung, Ka Nang [1 ]
Guo, Jianping [2 ,3 ]
Chen, Hua [4 ]
机构：
[1] Chinese Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China
[2] Sun Yat Sen Univ, Sch Phys & Engn, Guangzhou 510275, Guangdong, Peoples R China
[3] SYSU CMU Shunde Int Joint Res Inst, Foshan, Peoples R China
[4] Univ Colorado, Dept Elect Comp & Energy Engn, Boulder, CO 80309 USA
来源：
2015 IEEE 58TH INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS (MWSCAS) | 2015年
关键词：
Auto buck-boost; comparator based; current mode; cross regulation; single-inductor multiple-output dc-dc converter;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A robust cross-regulation-suppressed single-inductor multiple-output (SIMO) dc-dc converter with duty-regulated comparator control is proposed. The control scheme effectively combines comparator-based and linear-compensator-based controllers to achieve fast load-transient response and low cross regulation to other output channels simultaneously. The control algorithm does not rely on duty-inductor-current feed-forward which is sensitive to the accuracy of inductor-current sensor. As a result, it can provide robust cross-regulation suppression for a wide range of loading for the SIMO dc-dc converter. Moreover, together with the average-inductor-current control, the proposed control algorithm is suitable for SIMO dc-dc converter which has auto-buck-boost property for each sub-converter, which makes the SIMO converter suitable for dynamic voltage scaling applications.
引用
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页数：4
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