A LCD supplied by high integrated dual-side dual-output switched-capacitor regulator with only two flying capacitors

Chun Jen Shih, Yu Huei Lee, Yang Ching Lin, Ming Yan Fan, Ke Horng Chen, Sheng Fa Liu, Pao Hsien Chiu, Sandy Chen, Chun Yu Shen, Ming Ta Hsieh, Huai An Li, Yean Kuo Luo, Wei-Chou Hsu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper presents a high integrated dual-side dual-output (DSDO) switched-capacitor (SC) regulator with only two flying capacitors. Generally, a dual-phase voltage doubler and an inverter are used to supply positive and negative voltage for TFT-LCD gate drivers, respectively. Four flying capacitors, eight pin-outs, and sixteen power switches are necessary for their operations in the driver integrated chip (IC). The proposed DSDO SC regulator combines both dual-phase voltage doubler and inverter converter into one channel through the use of time multiplexing technique at the cost of little performance degradation. As a result, it not only diminishes the number of flying capacitor from four to two but also removes four IC pin-outs for low cost and compact size. Beside, sixteen necessary power switches are reduced to twelve for decreasing about 27% silicon area.

Original languageEnglish
Title of host publication49th Annual SID Symposium, Seminar, and Exhibition 2011, Display Week 2011
Pages1304-1307
Number of pages4
Publication statusPublished - 2011 Dec 1
Event49th Annual SID Symposium, Seminar, and Exhibition 2011, Display Week 2011 - Los Angeles, CA, United States
Duration: 2011 May 152011 May 20

Publication series

Name49th Annual SID Symposium, Seminar, and Exhibition 2011, Display Week 2011
Volume3

Other

Other49th Annual SID Symposium, Seminar, and Exhibition 2011, Display Week 2011
CountryUnited States
CityLos Angeles, CA
Period11-05-1511-05-20

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture

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