A 91%-Efficiency Single-Stage Bipolar Quad-Output Regulating Rectifier with Event-Driven Output Power Enhancement via Coil-Reused DC-DC for Wireless Power Transfer

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A 91%-Efficiency Single-Stage Bipolar Quad-Output Regulating Rectifier with Event-Driven Output Power Enhancement via Coil-Reused DC-DC for Wireless Power Transfer

Conference Paper (2026)

Author(s)

Tianqi Lu (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Bo Zhao (Zhejiang University - Hangzhou)

Sijun Du (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Research Group

Electronic Instrumentation

DOI related publication

https://doi.org/10.1109/ISSCC49663.2026.11409045 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:968f86c9-f53a-4017-8433-f4801d0c742f

More Info

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Publication Year

2026

Language

English

Research Group

Electronic Instrumentation

Pages (from-to)

160-162

Publisher

IEEE

ISBN (electronic)

9798331589363

Event

2026 IEEE International Solid-State Circuits Conference, ISSCC 2026 (2026-02-15 - 2026-02-19), San Francisco, United States

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Abstract

A bipolar quad-output regulating rectifier for wireless power transfer (WPT) is presented. Using only five power switches, it provides four independently regulated bipolar outputs. A coil-reused DC-DC mode sustains operation under heavy-load conditions beyond the RX input power limit. The rectifier achieves up to 173mW output power, 91% peak efficiency, and fast transient recovery.

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