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High Efficient Energy Transmission for Implantable Artificial Heart

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6 Author(s)

This paper is concerned with electrical energy transmission by measns of inductive coupling between two spiral coils with amorphous magnetic fibers. This method is designed for use in transcutaneous energy transmission to an electrically actuated implanted artificial heart. Analysis of the operation of the transmitting coils revealed the optimum operating conditions for efficient energy transmission. Calculated results indicate that the transmitting coils can transmit electric power with an efficiency of about 95% at operating frequencies between 100 and 200 kHz. An average rise in coil temperature of 2 to 3°C was observed when transmitting 20 W of power. We also conducted tests in which energy was transmitted to a vibrating electromagnetic pump simulating an artificial heart.

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Magnetics in Japan, IEEE Translation Journal on  (Volume:8 ,  Issue: 3 )