• DocumentCode
    3090236
  • Title

    Multi-Phase Charge Pump Generating Positive and Negative High Voltages for TFT-LCD Gate Driving

  • Author

    Chi-Hao Wu ; Chern-Lin Chen

  • Author_Institution
    Nat. Taiwan Univ., Taipei
  • fYear
    2008
  • fDate
    23-25 Jan. 2008
  • Firstpage
    179
  • Lastpage
    183
  • Abstract
    A regulated charge pump circuit generating voltages of 6timesVDD and -6timesVDD is proposed for TFT-LCD gate drivers in portable equipments. The charge pump exploits multi-phase clocks and multiplex schemes to produce positive and negative voltages at the same pumping stage. One external flying capacitor and one pumping stage can be reduced. The proposed circuit has been implemented in a 5 V/32 V 0.5-mum CMOS technology. It delivers regulated 17.5 V and -14.5 V from a supply voltage of 2.8 V to 3.3 V
  • Keywords
    CMOS integrated circuits; driver circuits; liquid crystal displays; thin film transistors; CMOS technology; TFT-LCD gate driving; flying capacitor; multiphase charge pump generating voltages; Capacitors; Charge pumps; Circuit testing; Clocks; Driver circuits; Electronic equipment testing; Power supplies; Power systems; Thin film transistors; Voltage; TFT-LCD gate driver; regulated charge pump;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Electronic Design, Test and Applications, 2008. DELTA 2008. 4th IEEE International Symposium on
  • Conference_Location
    Hong Kong
  • Print_ISBN
    978-0-7695-3110-6
  • Type

    conf

  • DOI
    10.1109/DELTA.2008.80
  • Filename
    4459536
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3090236