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This paper presents the modeling of variable inductors (VI) following an analytical procedure. Usually, in a VI a dc magnetic flux is injected into the structure in order to provide a bias level that allows for magnetic permeability modulation. The ac magnetic flux is superposed to this dc level, thus making it possible that a variable inductance can be seen from the ac windings. Under the assumption...
This paper presents a design, simulation, and evaluation procedure of a variable inductor (VI) for a recently proposed dc-grid LED driver. The design procedure is based on the use of SPICE behavioral modeling to implement the different elements of the equivalent reluctance model of the VI. Thus, the model merges both electrical and magnetic behavior of the VI, including magnetic and geometric features...
This paper presents a design, simulation and evaluation procedure of a variable inductor (VI) for a recently proposed DC-grid LED driver. The design procedure is based on the use of SPICE behavioral modelling to implement the different elements of the equivalent reluctance model of the VI. Thus, the model merges both electrical and magnetic behavior of the VI, including magnetic and geometric features...
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