Title :
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
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;
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
DOI :
10.1109/APCCAS.2000.913603
