Electronic Design

Inductor's Equivalent Circuit Yields True Picture of Losses

Inductors range from RF coils used in communications through switchmode inductors used in power supplies and differential and common mode inductors in EMI filters. As switchmode power supply designs ...
EDN

Signal chain Basics #153: Stabilize inductive open-loop output impedance with closed loops

Some operational amplifiers (op amps) have an inductive open-loop output impedance, which can be more complex to stabilize than op amps with resistive output impedances. One of the most common ...
EDN

Using the substitution theorem to derive Thevenin resistance values with SPICE

Thevenin and Norton equivalent circuits [1-3] are a valuable analytical tool for circuit designers and researchers. How to obtain the Thevenin resistance and Norton conductance of a network with ...
Electronic Design

A Better Transformer Equivalent Circuit

Download this article in PDF format. If you search the internet for “transformer equivalent circuits,” you’ll get five pages of over 100 small circuit diagrams. Figures 1 and 2 show two typical ...