A Single-Stage Three-Mode Reconfigurable Regulating Rectifier for Wireless Power Transfer

Shurui Liu, Tianqi Lu, Zhong Tang, Zhiyuan Chen, Junmin Jiang, Bo Zhao, Sijun Du

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

In this article, we propose a reconfigurable regulating rectifier with a wide operational range for wireless power transfer. The proposed three-mode rectifier achieves a broad range voltage regulation without global loop control to minimize the chip area occupation. Compared with previous work, more working modes and greater voltage gain allow the proposed rectifier to regulate lower input power, which extends the voltage regulation range. A local loop control scheme is proposed for voltage rectification with three modes. It adaptively senses the duty cycle of the mode signal to determine the working mode of the rectifier, and configure the rectifier to the desired mode for voltage regulation. The proposed system was designed and fabricated in a 180-nm BCD technology with an active area of 1.17 mm2. The measurement results show that the proposed system can rectify wide-range input ac power to a regulated output. The achieved voltage conversion ratiois between 0.95X and 2.68X, with a peak power conversion efficiencyat 87.4%.

Original languageEnglish
Pages (from-to)9195-9205
Number of pages11
JournalIEEE Transactions on Power Electronics
Volume38
Issue number7
DOIs
Publication statusPublished - 2023

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
  • regulating rectifier
  • reconfigurable rectifier
  • implantable biomedical devices

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