Design of power and data telemetry system utilizing Class-E amplifier for visual prosthesis.
- Author:
Bo LIU
1
;
Kaijie WU
;
Xiaobei WU
;
Xinyu CHAI
Author Information
1. Department of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
- Publication Type:Journal Article
- MeSH:
Amplifiers, Electronic;
Automatic Data Processing;
Electric Power Supplies;
Electronics, Medical;
Prosthesis Design;
Telemetry;
Visual Prosthesis
- From:
Chinese Journal of Medical Instrumentation
2011;35(4):239-245
- CountryChina
- Language:Chinese
-
Abstract:
A wireless transmission system for visual prosthesis is introduced. Power and data are transmitted through inductive link between only one pair of coils, in order to reduce the size of the device. The transmitter is based on Class-E power amplifier due to its high efficiency, and a modulation circuit is added to control the dc supply of the Class-E amplifier to achieve ASK modulation of data with modulation depth of 25%. In addition, an experimental system is implemented, and test shows that it sufficiently supports a 16-channel micro-stimulator on power delivery and data transfer rate.
