Title :
A new structure transcutaneous transformer for artificial heart system
Author :
Zhao, L. ; Foo, C.F. ; Tseng, K.J.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore
fDate :
9/1/1999 12:00:00 AM
Abstract :
A new geometrical design of a transcutaneous transformer for an artificial heart system is presented in this paper. The primary and secondary cores are made of ferrite and amorphous magnetic materials respectively. The experimental results indicate that it is possible to transmit an electrical power of 20 W which is sufficient to drive the heart pump. With a gap of 5 mm between the coils, its transmission efficiency with the inverter can be up to 90% with a switching frequency 102.5 kHz. Some characteristics of the proposed transformer are also shown and discussed in this paper
Keywords :
coils; high-frequency transformers; pacemakers; transformer cores; 102.5 kHz; 20 W; 5 mm; amorphous magnetic material core; artificial heart system; ferrite core; full-bridge resonant convertor; geometrical design; heart pump drive; implanted coil; inverter; primary core; secondary core; transcutaneous transformer; Amorphous magnetic materials; Amorphous materials; Artificial heart; Circuit faults; Coils; Ferrites; Magnetic cores; Magnetostriction; Power supplies; Transformer cores;
Journal_Title :
Magnetics, IEEE Transactions on
