JSSC 2023第11期RF & Wireless0.18-µm高压SOI工艺

All Rivers Flow to the Sea A High-Density Wireless Power Receiver With Split-Dua

提出一种高密度无线功率接收器，采用分路双路径和混合四路径整流转换技术，实现高输出电流。

8.8-W最大输出功率，无线和有线充电峰值效率分别为85.2%和91%

无线功率接收器分路双路径混合四路径整流高输出电流SOI工艺

▸创新点1：分路双路径设计，通过将电流分流到两条路径，显著降低了功率电感器的电流应力，从而减少了电感功率损耗，提升了整体效率。

▸创新点2：混合四路径整流转换技术（S2H4），结合了开关电容和电感的优势，实现了高输出电流和高Vac振幅（高达3 VOUT），显著提高了谐振槽的输出功率。

▸创新点3：兼容有线充电功能，通过复用转换部分的硬件，使得无线电源接收器能够同时支持无线和有线充电，提高了设备的灵活性和实用性。

▸创新点4：采用0.18-µm高压SOI工艺制造，实现了8.8W的最大输出功率，无线充电和有线充电的峰值效率分别达到85.2%和91%，展示了优异的性能表现。

Abstract

This article presented a wireless power receiver (RX) with a split-dual-path and merged switched-capacitor- inductor hybrid-quad-path (S2H4) step-down rectifying conver- sion for high output current. It can obtain the Vac amplitude as high as 3 VOUT, which increases the output power of the resonant tank. With multiple paths conducting currents to the load, the current stress on the power inductor has been significantly reduced, resulting in lower inductor power loss. The S2H4 wire- less power RX