Nonlinear magnetics modeling for magamp power regulation

Nonlinear magnetics are integral components of most electronic systems, but representative models are often overlooked in the electronic circuit design/simulation environments. Using a first-principles, physics-based theory of operation, the Jiles-Atherton model covers the major magnetic phenomena important to magnetic components with a single, parameterized, first-order differential equation. The implementation described herein corrects popular misconceptions about the formulation of the model. This model has been integrated into a SPICE-type design environment and will be discussed with a focus on the implementation of the modelpsilas equations.