A wireless power management and data telemetry circuit module for high compliance voltage electrical stimulation applications

2013 IEEE Asian Solid-State Circuits Conference (A-SSCC) Pub Date : 2013-12-23 DOI:10.1109/ASSCC.2013.6691030

Jianming Zhao, Lei Yao, Rui-Feng Xue, Li Peng, M. Je, Y. Xu

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引用次数: 10

Abstract

A wireless power management and data telemetry circuit module for high compliance voltage electrical stimulation applications is presented in this paper. The system consists of rectifier, LDOs, DC-DC step-up charge pump and power monitoring circuit for closed loop wireless power management. The system also consists of a clock and data recovery (CDR) circuit and load shift keying (LSK) modulator for bidirectional data telemetry. The system operates at 13.56MHz. The wireless power management block receives AC power through an implantable coil and outputs three DC levels: 1V, 1.8V and 10V. The CDR circuit recovers clock and data from the 13.56MHz RF carrier through the same coil. The power efficiency of the wireless power management system is measured as 42% with 100μA current load connected on each supply output. The forward and backward data rate of the data telemetry achieves 61.5 kbps and 33.3 kbps, respectively. The system is implemented in 0.18μm CMOS process with 24V HV LDMOS option, occupying a core area of 1.8 mm × 1.8 mm.

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一种适用于高电压电刺激应用的无线电源管理和数据遥测电路模块

介绍了一种适用于高顺应电压电刺激应用的无线电源管理和数据遥测电路模块。该系统由整流器、LDOs、DC-DC升压充电泵和用于闭环无线电源管理的功率监控电路组成。该系统还包括时钟和数据恢复(CDR)电路和用于双向数据遥测的负载移位键控(LSK)调制器。系统工作频率为13.56MHz。无线电源管理模块通过植入式线圈接收交流电源，输出三个直流电平:1V、1.8V和10V。CDR电路通过同一线圈从13.56MHz射频载波恢复时钟和数据。在每个电源输出连接100μA电流负载时，无线电源管理系统的功率效率为42%。遥测数据的前向速率和后向速率分别达到61.5 kbps和33.3 kbps。该系统采用0.18μm CMOS工艺，采用24V HV LDMOS选项，核心面积为1.8 mm × 1.8 mm。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2013 IEEE Asian Solid-State Circuits Conference (A-SSCC)

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