PLECS 1.3 Online Help

Variable Resistor with Constant Parallel Capacitor

Purpose

Variable resistor with constant parallel capacitor.

Library

Nonlinear

Description

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This component models a variable resistor with a constant capacitor connected in parallel. The resistance is determined by the continuous signal fed into the input of the component.


Note  This component is based on a current controlled voltage source. It may therefore not be connected in parallel with other voltage sources or capacitors.

Parameters and Dialog Box

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Width
The width of the electrical ports resp. the number of resistors/capacitors represented by the component.
Capacitance
The value of the capacitor, in farads (F). All finite positive and negative values are accepted, including 0. The default is 1.

If the parameter is a scalar, all internal capacitors have the same value. To specify individually the capacitances in a vectorized component use a vector [C1 C2:::Cn] . The length n of the vector must correspond to the parameter 'Width'.

Initial voltage
The initial voltage of the capacitor at simulation start, in volts (V). This parameter may either be a scalar or a vector with the width of the component. The positive pole is marked with a "+". The initial voltage default is 0.

Probe Signals

Capacitor voltage
The voltage measured across the capacitor. A positive voltage is measured when the potential at the terminal marked with "+" is greater than the potential at the unmarked terminal.