A Voltage-Mode DC-DC Converter with Enhanced Transient Responses

被引：0
|
作者：
Jang, Kichang [1 ]
Choi, Jungsoo [1 ]
Park, Chulkyu [1 ]
Choi, Joongho [1 ]
机构：
[1] Univ Seoul, Dept Elect & Comp Engn, Seoul, South Korea
来源：
2012 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS 2012) | 2012年
关键词：
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：
This paper presents the design technique using a charge-pump circuit for enhancing the transient responses of a voltage-mode DC-DC converter. Although there is no need for additional sensing circuitry for a voltage-mode DC-DC converter, extensive frequency compensation scheme should be critical for stable operations. This converter shows slow transient responses with respect to variations of input voltage and load current. In this paper, a charge-pump circuit is added to the compensating circuit for faster responses. The proposed method is verified in hardware implementation where the voltage-mode DC-DC buck converter is fabricated in a 0.35-um CMOS technology.
引用
收藏
页码：974 / 977
页数：4
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