VLSI implementation of wireless power and data transmission circuits for micro-stimulator

Abstract

This paper presents the realization of the radio frequency (RF) power and data transmission for implantablc micro-stimulators This implantable devicc includes an intemal RF front-end circuit, a control circuit, and a stimulator. A 2MHc AM modulated sibmal including the power and data nccessary for the implantable devicc is received, and a stable DC voltage and digital data will he extracted to stimulate the neuromuscular stimulation. The stimulator is a currentsource stimulator, which is capable to generate a wide range of stimulation waveforms and stimulation patterns for a nerve cuff electrode. In this paper, most of the integrated circuits for the implantablc device have hecn proposed and verified by using Hspice according to the technology ofTSMC 0.25 um CMOS praccss.