Magnetics modeling for computer-aided design of power electronics circuits

Existing models of magnetic components in simulators fail to describe magnetic components in a physically correct manner. The reluctance model includes geometric information and gives accurate results for the energy. An electric-to-magnetic circuit interface is derived that allows the direct inclusion of the reluctance model in the simulation. The energy in the magnetics is accurately described by use of the distributed reluctance model. Finite-element analysis is used to obtain the model parameters. The approach can be implemented in any circuit simulation program. Examples for the SPICE simulator are given.<<ETX>>