Magnetic-Equivalent-Circuit-Based Scaling Laws for Low-Frequency Magnetic Devices

This paper sets forth a method to obtain scaling laws for low-frequency power magnetic devices using normalized magnetic equivalent circuits. The resulting scaling laws are meant to facilitate the system-level design. While the method is presented in general, it is demonstrated using an inductor as an example. The predictions of the scaling law obtained using the proposed approach are compared to commercially available devices. Experimental validation of the design model is also presented.