A 92.3%-Efficiency Switching-Mode Dual-Output Regulating Rectifier With Improved Link Adaptability for Wireless Power Transfer

Abstract:

This article presents a 6.78-MHz switching-mode wireless power transfer (WPT) receiver (RX) with single-stage dual-output regulation and improved adaptability to link variations for biomedical applications. Based on a modified voltage doubler topology, it optimally transitions between voltage mode (VM) and resonant current mode (RCM) to extend the WPT range without …