Class E driver for transcutaneous power and data link for implanted electronic devices

Magnetic transcutaneous coupling is frequently used for power and data transfer to implanted electronic devices. The paper describes a transmitter/coil driver based on the class E topology. The development of a 'high-Q approximation' simplifies the design procedure. A method of data modula...

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Bibliographic Details
Published in:Medical & biological engineering & computing 1992, Vol.30 (1), p.69-75
Main Authors: TROYK, P. R, SCHWAN, M. A
Format: Article
Language:English
Subjects:
Biological and medical sciences
Electric Power Supplies
Electronics, Medical
Humans
Medical sciences
Prostheses and Implants
Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)
Technology. Biomaterials. Equipments. Material. Instrumentation
Telemetry
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Summary:Magnetic transcutaneous coupling is frequently used for power and data transfer to implanted electronic devices. The paper describes a transmitter/coil driver based on the class E topology. The development of a 'high-Q approximation' simplifies the design procedure. A method of data modulation using synchronous frequency shifting is described. The class E circuit shows great promise, especially for circuits with unusually low coefficients of coupling. Transmitter coil currents of several amperes, at radio frequencies, with relatively low active device power dissipation, can easily be obtained.
ISSN:0140-0118
1741-0444
DOI:10.1007/BF02446196