標題: Liquid Crystal Display (LCD) Supplied by Highly Integrated Dual-Side Dual-Output Switched-Capacitor DC-DC Converter With Only Two Flying Capacitors
作者: Lin, Yang-Ching
Luo, Yean-Kuo
Chen, Ke-Horng
Hsu, Wei-Chou
電控工程研究所
Institute of Electrical and Control Engineering
關鍵字: Constant frequency regulation;DC-DC power converter;dual phase voltage doubler;dual-side dual-output;inverter;switched-capacitor converter
公開日期: 1-二月-2012
摘要: This paper proposes a highly integrated dual-side dual-output (DSDO) switched-capacitor (SC) converter with only two flying capacitors. Generally, a dual-phase voltage doubler and an inverter are used to supply positive and negative voltages for thin film transistor-liquid crystal display (TFT-LCD) gate drivers, respectively. Four flying capacitors, eight pin-outs for the four flying capacitors, and 16 power switches are necessary for their operations in the driver integrated chip (IC). The proposed DSDO SC converter combines both dual-phase voltage doubler and inverter converter in one channel through the use of time multiplexing technique with minimal performance degradation. As a result, the proposed converter not only reduces the number of flying capacitors from four to two, but also removes four IC pin-outs for lower cost and more compact size. Moreover, the 16 required power switches are reduced to 12, resulting in an approximated 27% decrease of the silicon area.
URI: http://dx.doi.org/10.1109/TCSI.2011.2162369
http://hdl.handle.net/11536/20499
ISSN: 1549-8328
DOI: 10.1109/TCSI.2011.2162369
期刊: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
Volume: 59
Issue: 2
起始頁: 439
結束頁: 446
顯示於類別:期刊論文


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  1. 000304398600019.pdf