Double-Channel Constant Voltage Output Design in Magnetically Coupled Wireless Power Transfer Systems With the Anti-Misalignment Capability

IF 1.8 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE open journal of circuits and systems Pub Date : 2025-12-09 DOI:10.1109/OJCAS.2025.3541626

Zhiheng Zhao;Jinhong Sun

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Abstract

Magnetically Coupled Wireless Power Transfer (MC-WPT) technology offers wire-free power delivery with advantages in safety, convenience, and adaptability across various power levels and transmission distances. However, traditional single-output MC-WPT systems are inadequate for the increasing demand to supply power simultaneously to multiple devices with diverse voltage requirements. This paper proposes two voltage output techniques for MC-WPT systems: a Single Transmitter coil and Double Receiver coils (STDR) method with high offset tolerance. The STDR approach employs a receiver-side decoupling coupling mechanism optimized via finite element analysis (FEA), achieving stable dual voltage outputs of 36 V with voltage fluctuations under 28.6% across ±50 mm X-axis offsets. Experimental results validate that the proposed system maintain constant voltage outputs under input or load perturbations, demonstrating their effectiveness and practicality for double-output MC-WPT applications.

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具有抗失调能力的磁耦合无线输电系统的双通道恒压输出设计

磁耦合无线电力传输（MC-WPT）技术在各种功率水平和传输距离上提供安全、方便和适应性的无线电力传输。然而，传统的单输出MC-WPT系统已不足以满足不断增长的同时为具有不同电压要求的多个设备供电的需求。本文提出了两种用于MC-WPT系统的电压输出技术：单发送线圈和双接收线圈（STDR）方法，具有高偏移容限。STDR方法采用经有限元分析（FEA）优化的接收端去耦耦合机制，实现了36 V的稳定双电压输出，在±50 mm x轴偏移范围内电压波动小于28.6%。实验结果验证了该系统在输入或负载扰动下保持恒定电压输出，证明了其在双输出MC-WPT应用中的有效性和实用性。

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来源期刊

IEEE open journal of circuits and systems

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审稿时长

19 weeks