Patent ID: 6348848
Filing Date: 2002-02-19
Classification: H01F

Abstract:
A transformer having fractional equivalent turns on at least one winding, comprisingat least a first magnetic core, the at least a first magnetic core comprising a magnetic circuit having at least three flux paths, a source of magnetomotive force to generate magnetic flux in the at least three flux paths, the source of magnetomotive force having a phase defined by the timing and the direction of the flux which it generates in the at least three flux paths, and a flux distribution winding to determine the distribution of the flux in the at least three flux paths comprising a first flux distribution coil wound around one of the at least three flux paths, and at least a second flux distribution coil wound around at least a second of the at least three flux paths, the at least a first flux distribution coil having a number n turns where n is a positive or negative integer, the sign of the number n indicating its phase with respect to the phase of the source of magnetomotive force, the at least a second flux distribution coil having a number m turns where m is a positive or negative integer, the sign of the number m indicating its phase with respect to the phase of the source of magnetomotive force, the first flux distribution coil and at least the at least a second flux distribution coil further being connected together so that the first flux distribution coil and at least the at least a second flux distribution coil have a common terminal voltage Vt induced in the first flux distribution coil and at least the at least a second flux distribution coil by the flux through the first flux distribution coil and the flux through at least the at least a second flux distribution coil, whereby through flux through the first flux distribution coil is proportional to Vt divided by n and whereby the flux through the at least a second flux distribution coil is proportional to Vt divided by m.