Design of wireless transcutaneous energy transmission system for totally artificial hearts

Author

Tsai, C.-C. ; Chen, B.-S. ; Tsai, C.-M.

Author_Institution

Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan

fYear

2000

fDate

2000

Firstpage

646

Lastpage

649

Abstract

A wireless transcutaneous energy transmission system has been developed for totally artificial hearts. The complete system includes a dc-to-dc converter, dc-to-high-frequency transfer circuit, a coil-coupling structure, and a high-frequency-to-dc rectifying circuit. The power transfer is stabilized by feedback control of the phase of the input impedance of the resonant circuit. Experimental results showed that the output voltage variation was kept within ±0.4 volts when the coil spacing varied from 6 to 18 mm. The optimized conversion efficiency of this system was about 68% when the output power was 36 watts

Keywords

DC-DC power convertors; artificial organs; coupled circuits; rectifying circuits; resonant power convertors; 36 W; 6 to 18 mm; 68 percent; coil spacing; coil-coupling structure; dc-to-dc converter; dc-to-high-frequency transfer circuit; feedback control; high-frequency-to-dc rectifying circuit; input impedance; optimized conversion efficiency; output power; output voltage variation; resonant circuit; totally artificial hearts; wireless transcutaneous energy transmission system; Artificial heart; Batteries; Coils; Coupling circuits; DC-DC power converters; Feedback control; RLC circuits; Rectifying circuits; Skin; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2000. IEEE APCCAS 2000. The 2000 IEEE Asia-Pacific Conference on

Conference_Location

Tianjin

Print_ISBN

0-7803-6253-5

Type

conf

DOI

10.1109/APCCAS.2000.913603

Filename

913603