Coupled Coils

This Demonstration plots the voltage transfer function

Voutput

Vinput

=T(jω)

of two equivalent electrical circuits coupled by magnetic interactions between their inductors. This shows how the coupling affects the magnitude and the phase angle of the voltage transfer function. Both the magnitude and phase of the input voltage are held constant.

In addition to changing the magnetic field coupling, you can also change the circuit component values (

R

,

L

,

C

of both circuits are equal) to see their effect on the voltage transfer function.