Towards a low-power active epidural spinal cord array controlled through a two wire interface

Conference paper (2012)

Authors

Vasiliki Giagka University College London

Andreas Demosthenous University College London

N. Donaldson University College London

Affiliation

External organisation

Epidural stimulation Pulse width modulation Implantable electrode driving system Time-division multiplexing

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Published Date

01-01-2012

Language

English

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Affiliation

External organisation

Abstract

The design of a very small low-power IC driving 16 electrodes in any combination, for testing different epidural stimulation patterns in freely moving rats using a two wire interface is presented. A scheme is proposed, to receive power, data, clocking information and stimulus current pulses from an external source via the two wires. This is achieved by a combination of time multiplexing and pulse width modulation. The architecture of the system is discussed and simulated results of some building blocks are presented.