PLECS 1.3 Online Help

Variable Inductor

Purpose

Variable inductor.

Library

Nonlinear

Description

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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 = --(L   i) = --L  i +L   --i
    dt        dt        dt

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.


Note 


Parameters and Dialog Box

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Width
The width of the electrical ports resp. the number of variable inductors represented by the component.
Initial current
The initial current through the inductor at simulation start, in amperes (A). This parameter may either be a scalar or a vector with the 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 A. The direction of a positive current corresponds to the small arrow at one of the terminals.