D10.7 - Phase-Coordinated Dual-Channel IPT for Constant Voltage Under Two-Dimensional Misalignment

Monday, March 23, 2026

12:00 PM - 1:30 PM CT

Location: Meeting Room Level, Park View Foyer

Technical Dialogue Presenter(s)

YW

Yihao Wu

The University of Texas at Austin

Presentation Paper

Co-Author(s)

ZZ

Zongyang Zhu

University of Texas at Austin
Ziyang Xu (he/him/his)

The University of Texas at Austin
Haoyu Wang

The University of Texas at Austin
Alex Hanson

UT Austin

Misalignment between transmitter and receiver coils causes severe voltage fluctuations in inductive power transfer (IPT) systems. This paper presents a communication-less dual-channel IPT architecture that maintains constant output voltage under two-dimensional misalignment. A bipolar transmitter pad with two magnetically decoupled windings, driven by phase-shifted inverters with optimized compensation parameters, suppresses position-induced voltage variations. A 280-W prototype with a 300 mm × 200 mm bipolar pad demonstrates voltage regulation within ±5% across ±150 mm lateral and ±30 mm longitudinal offsets, while maintaining 89.1–92.8% dc–dc efficiency throughout the operating range.