Analysis and design of a high efficiency boost DC-DC converter based on pulse-frequency modulation

被引：5
|
作者：
Liu, Xin [1 ]
Guo, Shuxu [1 ]
Wang, Shuai [1 ]
Xu, Feng [1 ]
Du, Guotong [1 ]
Chang, Yuchun [1 ]
机构：
[1] Jilin Univ, Coll Elect Sci & Engn, Changchun 130012, Jilin Province, Peoples R China
来源：
2007 INTERNATIONAL SYMPOSIUM ON INTEGRATED CIRCUITS, VOLS 1 AND 2 | 2007年
关键词：
D O I：
10.1109/ISICIR.2007.4441882
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 high efficiency boost DC-DC converter controlled by current-limited and minimum off-time pulse-frequency modulation (PFM) mode is analyzed in this paper. The boost converter operating in discontinuous conduction mode: (I)CM) is modeled by the state-space average method, and is simulated by Matlab. The converter controlled by this PFM has lower power consumption, higher efficiency, smaller output ripple, and better regulation. The converter is designed and simulated using the UMC 0.61 mu m 30V BCD Process. Hspice simulation results show that, the converter can operate with supply voltage from 2.7V to 5.5V, and boost voltage up to the fixed 15V steadily. The output ripple voltage is about 220mV with 1 mu F capacitor and 22 mu H inductor. The power efficiency is nearly above 80% for the full load, maximum to 87%.
引用
收藏
页码：398 / 401
页数：4
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