A 90.8%-Efficiency SIMO Resonant Regulating Rectifier Generating 3 Outputs in a Half Cycle with Distributed Multi-Phase Control for Wirelessly-Powered Implantable Devices

📋 论文概要

本文提出了一种单输入多输出（SIMO）谐振调节整流器（R3），采用分布式多相控制，在半周期内生成三个独立输出，效率高达90.8%，解决了无线供电植入式医疗设备中多电压需求及传统两阶段结构效率低的问题。

💡 主要创新点

• 提出SIMO谐振调节整流器架构，可在单个半周期内同时产生三个输出电压，减少外围元件数量。
• 采用分布式多相控制技术，优化功率分配和时序，实现90.8%的高效率。
• 替代传统整流器加调节器的两级结构，提升整体功率转换效率并简化系统设计。

🏷 关键词

📄 原文摘要

Wirelessly-powered implantable medical devices (IMDs) have recently embraced a 1stage resonant regulating rectifier (R3) to enhance power conversion efficiency (PCE), replacing the prior 2-stage structure comprising an ac-dc rectifier followed by a regulator. Furthermore, to address the specific power requirements of IMDs that need multiple supplies, recent works have proposed dual-output R3 topologies that can provide two separate output voltages [1–5], as illustrated in Fig. 27.3.1 (top). The first technique involves segmenting several cycles into two groups, each responsible for generating either regulated high voltage or low voltage [3]. When generating low voltage, the power pass PMOS transistor operates with a low VSG (VINN –VSG), leading to an increase in onresistance (RON) and the possibility of entering sub-threshold mode. This, in turn, negatively affects PCE and limits the output voltage range. Additionally, as the pulse

👥 作者与机构

Hyun-Su Lee, Kyeongho Eom, Hyung-Min Lee

Korea University, Seoul, Korea