• DocumentCode
    3476331
  • Title

    Optimization of microwatt on-chip charge pump for single-chip solar energy harvesting

  • Author

    Zhiyuan Chen ; Law, Man-Kay ; Pui-In Mak ; Martins, Rui P.

  • Author_Institution
    Dept. of Electr. & Electron. Eng., Univ. of Macau, Macau, China
  • fYear
    2013
  • fDate
    3-5 June 2013
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    In this paper, a compact single-chip solar cell with charge pump for microwatt solar energy harvesting is analyzed. Improved solar energy harvesting efficiency is achieved by utilizing lateral photodiodes. To optimize the charge pump (CP) efficiency in the microwatt level, the switch off-resistance (Roff) and the capacitive switching loss (PC) are analyzed. The optimal flying capacitor size (Cfly) to achieve maximum power transfer is also calculated.
  • Keywords
    energy harvesting; photodiodes; solar cells; solar power; capacitive switching loss; charge pump efficiency; compact single-chip solar cell; lateral photodiodes; maximum power transfer; microwatt level; microwatt on-chip charge pump optimization; microwatt solar energy harvesting; optimal flying capacitor size; single-chip solar energy harvesting; solar energy harvesting efficiency; switch off-resistance; Switches;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Electron Devices and Solid-State Circuits (EDSSC), 2013 IEEE International Conference of
  • Conference_Location
    Hong Kong
  • Type

    conf

  • DOI
    10.1109/EDSSC.2013.6628123
  • Filename
    6628123
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3476331