PLECS 2.1 Online Help

Variable Resistor with Variable Series Inductor

Purpose

Variable resistor with variable series inductor.

Library

Nonlinear

Description

pict

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: [L1 L2...Ln dL1 -dL2...d-Ln ]
            dt  dt     dt . 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 component 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.