PLECS 2.1 Online Help

Variable Inductor

Purpose

Variable inductor.

Library

Nonlinear

Description

pict

This component models a variable inductor. The inductance is determined by the continuous signal fed into the input of the component. The voltage across a variable inductance is determined by the equation

    d         d          d
v = dt (L ⋅i) = dtL ⋅i +L ⋅dti

Therefore, the control signal is a vector twice as wide as the width of the component. It contains both the momentary inductance values and their derivatives with respect to time: [                          ]
 L1 L2 ...Ln ddtL1 ddtL2 ...ddtLn . It is the responsibility of the user to provide the correct derivatives. The momentary inductance may not be set to zero.


Note 


Parameters and Dialog Box

[Picture]

Initial current
The initial current through the inductor at simulation start, in amperes (A). This parameter may either be a scalar or a vector corresponding to the implicit width of the component. The direction of a positive initial current is indicated by a small arrow in the component symbol. The default of the initial current is 0.

Probe Signals

Inductor current
The current flowing through the inductor, in amperes (A). The direction of a positive current is indicated with a small arrow in the component symbol.
Inductor voltage
The voltage measured across the inductor, in volts (V).