potentiometer

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potentiometer

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Iconic Diagrams\Electric\Components

Use

Domains: Continuous. Size: 1-D. Kind: Iconic Diagrams (Electric).

Description

This model represents an ideal potentiometer.

potentiometer1

It can have various forms of causality. The equations are:

 

R1 = (1 - alpha) * R;

R2 = alpha * R;

p_high.u - p_var.u = p_high.i * R1;

p_var.u - p_low.u = p_low.i * R2;

p_high.i + p_var.i = p_low.i;

 

where alpha denotes the position of the indicator and can vary from zero to one.

Interface

Ports

Description

p_high, p_low

p_var

Both terminals of the resistor.

Indicator terminal.

Causality

 

indifferent

 

Parameters

 

R

alpha

Resistance [Ohm].

Indicator position (0 <= alpha <= 1).