Closed-loop class E transcutaneous power and data link for MicroImplants

Author

Troyk, Philip R. ; Schwan, Martin A K

Author_Institution

Pritzker Inst. of Med. Eng., Illinois Inst. of Technol., Chicago, IL, USA

Volume

39

Issue

6

fYear

1992

fDate

6/1/1992 12:00:00 AM

Firstpage

589

Lastpage

599

Abstract

The use of a multifrequency transmitter coil driver based on the class E topology is described. The development of a high-Q approximation, which simplifies the design procedure is presented. A closed-loop controller to compensate for transmitter and receiver variations, and a method of data modulation using synchronous frequency shifting are described. The closed-loop class E circuit shows great promise, especially for circuits with unusually low coefficients of coupling. Currents of several amperes, at radio frequencies, can easily and efficiently be obtained.

Keywords

prosthetic power supplies; prosthetics; MicroImplants; class E topology; closed-loop controller; data modulation method; high-Q approximation; multifrequency transmitter coil driver; synchronous frequency shifting; transcutaneous power/data link; Circuit topology; Coils; Coupling circuits; Driver circuits; Implants; Needles; Power supplies; Radio frequency; Radio transmitters; Telemetry; Equipment Design; Prostheses and Implants; Telemetry; Transcutaneous Electric Nerve Stimulation;

fLanguage

English

Journal_Title

Biomedical Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0018-9294

Type

jour

DOI

10.1109/10.141197

Filename

141197