Piecewise Linear Resistor
Purpose
Piecewise linear resistor.
Library
Nonlinear
Description

This component models a piecewise linear resistor. The resistance characteristic is
defined by a set of voltage/current values.
The operating mode of the piecewise linear resistor is illustrated in the diagram
below.
The voltage across the device dictates which internal switch is closed. The values 0 V
/ 0 A must always be defined in the set of voltage / current values to ensure the
current is zero at zero voltage.
Note In order to model a saturation characteristic with
segments, this component requires
ideal switches. It is therefore advisable to
keep the number of segments low in order to maintain a high simulation
speed.
Parameters and Dialog Box
-
Voltage values
- A vector of voltage values
in volts (V) that defines the
piece-wise linear characteristic. The voltage values must be strictly monotonic
increasing. At least two values are required. The value 0 must be present, the
corresponding current value must also be 0.
-
Current values
- A vector of current values
in amperes (A) that defines the
piece-wise linear characteristic. The current values must be strictly monotonic
increasing. The number of current values must match the number of voltage
values. The value 0 must be present, the corresponding voltage value must also
be 0.
Probe Signals
-
Resistor voltage drop
- The voltage measured across the component, in volts (V).
The positive terminal of the resistor is marked with a small black dot.
-
Resistor current
- The current flowing through the component, in amperes (A).