A Wide-Input-Range Ultrasonic Power Regulator with an Adaptive Voltage Generator for Implantable Applications

Wei Jun Liao, Tsung Heng Tsai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Ultrasonic power transmission provides an attractive solution to minimize the size of the implants while achieving high power levels (100 μW to several mW) required for most implant applications. Also, ultrasonic power transmission is affected by the distance and the alignment, and results in a wide input voltage range. A wide-input-range ultrasonic power regulator with an adaptive voltage generator for implantable applications is presented in this paper. A highfrequency voltage doubler circuit is used in the receiver to regulate the output voltage. On-chip capacitance is used to minimize the volume of the implant. The proposed regulator is designed in TSMC 0.18um CMOS process with 1.8 V supply voltage, and achieves a peak efficiency of 56.2%. The input voltage ranges from ±0.5 V to ±1.8 V.

Original languageEnglish
Title of host publicationProceedings - 2019 International SoC Design Conference, ISOCC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages56-57
Number of pages2
ISBN (Electronic)9781728124780
DOIs
StatePublished - Oct 2019
Event16th International System-on-Chip Design Conference, ISOCC 2019 - Jeju, Korea, Republic of
Duration: 6 Oct 20199 Oct 2019

Publication series

NameProceedings - 2019 International SoC Design Conference, ISOCC 2019
Volume2019-January

Conference

Conference16th International System-on-Chip Design Conference, ISOCC 2019
Country/TerritoryKorea, Republic of
CityJeju
Period6/10/199/10/19

Keywords

  • implantable applications
  • power regulator
  • ultrasonic

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