I have found the formla! Sorry I don’t know how to attach file here, so please click the link get my article: my blogger In this paper I given the formula of equivalent resistance for arbitrary ...

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 ...

The recent EDN article of Bruce Trump () on the input impedance of an op-amp circuit took into account the single-pole roll-off of its loop gain. He showed with a simple derivation how the equivalent ...