Rethinking Basic Assumptions for Modeling Parasitic Capacitance in Inductors

This article rethinks the basic assumptions often used in analytically modeling parasitic capacitance inductors. These are classified two commonly-used physics-based analysis methods: lumped capacitor network method and energy conservation method. The lumped-capacitor is not proper solution for calculating equivalent inductors at first resonant frequency, but rather represents above last frequency. energy-conservation based shown to be more accurate a reasonable model Multiple case studies of verifying theory.