A 13.56 MHz CMOS ring oscillator for wireless power transfer receiver system

Hyeonseok Hwang, Byeonghak Jo, Sechun Park, Soo-Won Kim, Chan Hui Jeong, Junil Moon

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

Abstract

A 13.56 MHz CMOS ring oscillator for DC/DC converter is demonstrated where measured performances make it suitable for wireless power transfer receiver system. The proposed structure employs a supply-regulated ring oscillator with a temperature compensated current bias circuit, which minimizes the frequency sensitivity to supply and temperature variations. Fabricated in a 0.11 μm 1P5M CMOS process, the developed oscillator as a switching frequency generator of DC/DC converter dissipates maximum 6.8 mW while exhibiting ±0.88 % frequency error against temperature variation of 0-125 °C.

Original languageEnglish
Title of host publicationIEEE Region 10 Annual International Conference, Proceedings/TENCON
PublisherInstitute of Electrical and Electronics Engineers Inc.
Volume2015-January
ISBN (Print)9781479940752
DOIs
Publication statusPublished - 2015 Jan 26
Event2014 IEEE Region 10 Conference, TENCON 2014 - Bangkok, Thailand
Duration: 2014 Oct 222014 Oct 25

Other

Other2014 IEEE Region 10 Conference, TENCON 2014
CountryThailand
CityBangkok
Period14/10/2214/10/25

Keywords

  • clock generation
  • ring oscillator
  • temperature compensation
  • wireless power transfer

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications

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  • Cite this

    Hwang, H., Jo, B., Park, S., Kim, S-W., Jeong, C. H., & Moon, J. (2015). A 13.56 MHz CMOS ring oscillator for wireless power transfer receiver system. In IEEE Region 10 Annual International Conference, Proceedings/TENCON (Vol. 2015-January). [7022380] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/TENCON.2014.7022380