• DocumentCode
    549852
  • Title

    A 13.56MHz CMOS rectifier with switched-offset for reversion current control

  • Author

    Lu, Yan ; Ki, Wing-Hung ; Yi, Jun

  • Author_Institution
    ECE Dept., HKUST, Hong Kong, China
  • fYear
    2011
  • fDate
    15-17 June 2011
  • Firstpage
    246
  • Lastpage
    247
  • Abstract
    A 13.56 MHz full-wave active rectifier for wirelessly powered high-current biomedical implants is presented. It employs switched-offset in reducing the comparator delay for reversion current control. The rectifier was fabricated in a standard 0.35 μm CMOS process with an active area of 0.041 mm2. The measured power conversion efficiency is better than 83% over a wide ac input range (1.5 to 4 V) and load range (5k to 500 Ω), and reaches up to 90% at 3.5 V and 1.8 kΩ.
  • Keywords
    CMOS integrated circuits; biomedical electronics; comparators (circuits); prosthetics; rectifiers; CMOS process; CMOS rectifier; comparator delay; frequency 13.56 MHz; full-wave active rectifier; power conversion efficiency; reversion current control; size 0.35 mum; switched-offset; wirelessly powered high-current biomedical implant; Coils; Current measurement; MOS devices; Rectifiers; Semiconductor device measurement; Switches; Voltage measurement;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    VLSI Circuits (VLSIC), 2011 Symposium on
  • Conference_Location
    Honolulu, HI
  • ISSN
    2158-5601
  • Print_ISBN
    978-1-61284-175-5
  • Type

    conf

  • Filename
    5986130
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=549852