A 13.56MHz Fully Integrated 91.8% Efficiency Single-Stage Dual-Output Regulating Voltage Doubler for Biomedical Wireless Power Transfer

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Dual-output regulating rectifier is highly desired in wireless power transfer (WPT) for sub-100mW bioimplants. Such rectifiers perform voltage rectification and dual-output regulation simultaneously, thus avoiding post DC-DC conversions and cascaded power losses [1 –4]. However, the conventional dual-output structure suffers from a low voltage conversion ratio (VCR) (< 1) due to the full bridge rectifier (FBR) topology (Fig. 1), severely limiting the receiver operation when wireless link condition varies [1–2]. In order to extend the operational range without increasing the power demand from the transmitter, [3] presents a charge-pump based dual-output rectifier; however, it uses 10 power transistors (PTs) and 8 off-chip capacitors, degrading the power conversion efficiency (PCE) and increasing the integration cost. Alternatively, the current-mode dual-output rectifier can realize a VCR higher than 1, but the output power is limited to less than 10mW [4], which is insufficient for advanced bioimplants. In this work, a 13. 56MHz single-stage dual-output voltage doubler (DOVD) is proposed to address the above limitations, which employs only two PTs and a fully integrated design. lt can achieve a peak VCR of1.78 and outputs power up to 8lmWwith a 91.8% peak PCE.
Original languageEnglish
Title of host publicationProceedings of the 2023 IEEE Custom Integrated Circuits Conference (CICC)
Place of PublicationPiscataway
Number of pages2
ISBN (Electronic)979-8-3503-9948-6
ISBN (Print)979-8-3503-9949-3
Publication statusPublished - 2023
Event2023 IEEE Custom Integrated Circuits Conference (CICC) - San Antonio, United States
Duration: 23 Apr 202326 Apr 2023


Conference2023 IEEE Custom Integrated Circuits Conference (CICC)
Country/TerritoryUnited States
City San Antonio

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.


  • Wireless communication
  • Transmitters
  • Rectifiers
  • Wireless power transfer
  • Receivers
  • Regulation
  • Topology


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