Parallel resonant inductive wireless power transfer

Hans Pflug, Steven Beumer, Koen Weijand, Tina Bartulovic, Jeroen Tol, Huib Visser

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

1 Citation (Scopus)


This paper presents a parallel resonant inductive wireless power transfer system for medical implant applications. The aim of the transcutaneous charging system is to address a larger range of implant depth compared to the current state of the art technology. The impact on amplifier load impedance and with that, -design and -modeling, is shown from an analytical stand-point. The obtained model provides insight into component tolerance impact as well. An objective simulation comparison approach for rectifier topologies further ensures an efficient design. With a 0.5 W transmitter output power, a transferred current of 100 mA is measured over an implant depth of 10 to 50 mm and fitting well both a time- and frequency domain simulation model. The latter enabling complex analyses like class- mathrm{D} amplifier load pull combined with component tuning.

Original languageEnglish
Title of host publication2019 IEEE Wireless Power Transfer Conference, WPTC 2019
PublisherInstitute of Electrical and Electronics Engineers
Number of pages6
ISBN (Electronic) 978-1-7281-0705-9
Publication statusPublished - Jun 2019
EventWireless Power Week 2019 - Savoy Place, London, United Kingdom
Duration: 17 Jun 201921 Jun 2019


ConferenceWireless Power Week 2019
Abbreviated titleWPW2019
Country/TerritoryUnited Kingdom
Internet address


  • Class-D amplifier
  • impedance modeling
  • inductive wireless power transfer
  • load pull
  • parallel resonant
  • rectifier topology comparison


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