• DocumentCode
    1886463
  • Title

    Millimeter-scale nearly perpetual sensor system with stacked battery and solar cells

  • Author

    Chen, Gang ; Fojtik, Matthew ; Daeyeon Kim ; Fick, David ; Junsun Park ; Mingoo Seok ; Mao-Ter Chen ; Zhiyoong Foo ; Sylvester, Dennis ; Blaauw, D.

  • Author_Institution
    Univ. of Michigan, Ann Arbor, MI, USA
  • fYear
    2010
  • fDate
    7-11 Feb. 2010
  • Firstpage
    288
  • Lastpage
    289
  • Abstract
    An 8.75 mm3 sensor system is implemented with a near-threshold ARM Cortex-M3 core, custom 3.3 fW leakage-per-bit SRAM, two 1 mm2 solar cells, a thin-film Li-ion battery, and an integrated power management unit. The 2.1 ¿W system enters a 100 pW data-retentive sleep state between sensor measurements and harvests energy from the solar cells to enable nearly perpetual operation.
  • Keywords
    SRAM chips; energy harvesting; microprocessor chips; microsensors; secondary cells; solar cells; data-retentive sleep state; millimeter-scale nearly perpetual sensor system; power 100 pW; power 2.1 muW; power 3.3 fW; sensor measurements; solar cells; stacked battery; Battery charge measurement; Battery management systems; Energy management; Energy measurement; Photovoltaic cells; Power system management; Random access memory; Sensor systems; Sleep; Thin film sensors;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2010 IEEE International
  • Conference_Location
    San Francisco, CA
  • ISSN
    0193-6530
  • Print_ISBN
    978-1-4244-6033-5
  • Type

    conf

  • DOI
    10.1109/ISSCC.2010.5433921
  • Filename
    5433921
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1886463