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Variable Resistor with Variable Series Inductor

Purpose

Variable resistor with variable series inductor.

Library

Nonlinear

Description

[Picture]

This component models a variable resistor with a variable inductor connected in series. The resistance and inductance are determined by the continuous signals fed into the inputs of the component. The voltage across this component is determined by the equation

          d               d            d
v = R   i+ --(L  i) =  R + --L    i+ L   -i
          dt             dt          dt

Therefore, the control signal for the inductor 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: L  L :::L  dL  -dL ::: d-L
1  2    n dt 1dt 2   dt n. It is the responsibility of the user to provide the correct derivatives.


Note 


Parameters and Dialog Box

[Picture]

Width
The width of the electrical ports resp. the number of resistors/inductors represented by the component.
Initial current
The initial current through the component 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.