標題: Freewheel charge-pump controlled single-inductor multiple-output step-up DC-DC converter
作者: Chen, Chia-Min
Hsu, Kai-Hsiu
Hung, Chung-Chih
電機工程學系
Department of Electrical and Computer Engineering
關鍵字: Freewheel-charge-pump-controlled (FCPC);Freewheel switching;Charge-pump regulator;Pseudo-continuous conduction mode (PCCM);Single-inductor multiple-output (SIMO) converter
公開日期: 1-一月-2013
摘要: This paper presents a freewheel-charge-pump-controlled design for a single-inductor multiple-output (SIMO) DC-DC Converter. By applying the freewheel-charge-pump-controlled (FCPC) technique, the freewheel switching time is reused, and two extra charge-pump outputs are provided by time recycling, with no cost in time sequences. The converter has two step-up outputs and two charge-pump outputs that can be higher or lower than the input supply. The converter utilizes a 1 mu H inductor, 4.7 mu F charge-pump capacitors and 33 mu F output capacitors at a frequency of 1 MHz. The proposed converter shows low cross-regulation and achieves a maximum loading current of 70 mA. Fabricated in a 0.18-mu m CMOS process, the proposed circuit occupies 1.3 x 1.3 mm(2). Experimental results demonstrate that the converter successfully generates four well-regulated outputs with a single inductor. The supply voltage ranged from 1.6 to 2.5 V and the load regulation performance was 0.08, 0.05, 1.7, and 1.9 mV/mA for V-O1, V-O2, V-O3 and V-O4, respectively.
URI: http://dx.doi.org/10.1007/s10470-012-9982-9
http://hdl.handle.net/11536/20800
ISSN: 0925-1030
DOI: 10.1007/s10470-012-9982-9
期刊: ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING
Volume: 74
Issue: 1
起始頁: 215
結束頁: 225
顯示於類別:期刊論文


文件中的檔案:

  1. 000312769900022.pdf