A 6.78 MHz Dual-output Reconfigurable Rectifier with Hysteretic Output Regulation for Wireless Power Transfer Systems

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Abstract

A 6.78 MHz dual-output reconfigurable rectifier for wireless power transfer is presented. The proposed rectifier integrates AC-DC rectification and DC-DC regulation into a single-stage topology, alleviating received power loss and reducing system volume cost. By adding a switch matrix after rectifying bridge, a dual output can be realized and regulated by a hysteretic control unit. The proposed rectifier can work in six operation modes by reconfiguring, and each output can be regulated in three modes. As a result, fine output regulation and large output-driving capability can be achieved. Designed in a 180-nm BCD process using standard 5-V devices, the dual-output rectifier provides two output voltages at 3 V and 5 V, and delivers a maximum power of 1.6 W. The peak post-layout simulated power conversion efficiency reaches 80.1% when both load currents are 0.2 A.
Original languageEnglish
Title of host publicationProceedings of the 2022 29th IEEE International Conference on Electronics, Circuits and Systems (ICECS)
Place of PublicationPiscataway
PublisherIEEE
Pages1-4
Number of pages4
ISBN (Electronic)978-1-6654-8823-5
ISBN (Print)978-1-6654-8824-2
DOIs
Publication statusPublished - 2022
Event2022 29th IEEE International Conference on Electronics, Circuits and Systems (ICECS) - Glasgow, United Kingdom
Duration: 24 Oct 202226 Oct 2022

Publication series

NameICECS 2022 - 29th IEEE International Conference on Electronics, Circuits and Systems, Proceedings

Conference

Conference2022 29th IEEE International Conference on Electronics, Circuits and Systems (ICECS)
Country/TerritoryUnited Kingdom
CityGlasgow
Period24/10/2226/10/22

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • wireless power transfer
  • 6.78 MHz
  • dual-output rectifier
  • reconfigurable rectifier
  • regulating rectifier
  • single-stage receiver
  • hysteretic control
  • biomedical implants

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