Maximum Efficiency Tracking for Wireless Power Transfer with Multiple Receivers
Toshihiro MATSUDA, Yutaro KOMIYAMA ,Wenqi ZHU,Kien NGUYEN,Hiroo SEKIYA
The institute of electronics Information and communication engineers (EE) EE2022-12, pp.22-26, July, 2022. [pdf document]

<Abstract>

This paper proposes a pre-post regulation for a multi-receiver WPT system and presents a design guideline for a multi receiver WPT system that guarantees ZVS at all times. Based on the design guidelines, the design was carried out and circuit experiments were conducted. The proposed system achieved constant output voltage and maximum efficiency for load variations and misalignment in a system with multiple receivers. The effectiveness of the proposed system and the validity of the design guidelines were confirmed by circuit experiments.