This paper presents a power electronics system for a contactless supply of energy, via a magnetic field, of isolated movable electrical equipment, e.g. an artificial heart, or any portable equipment. Contactless energy transmission in this system is performed by means of the coupling between windings placed on isolated movable parts of the core of a single-phase transformer. Theoretical analysis and practical results concerning the convereter configuration, control, operational safety and sensibility on a wide range variable coupling are presented.
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