Resistor
Linear resistor in electrical systems
Library
Electrical Elements
Description
The Resistor block models a linear resistor, described with the following equation:
where
V | Voltage |
I | Current |
R | Resistance |
Connections + and – are conserving electrical ports corresponding to the positive and negative terminals of the resistor, respectively. By convention, the voltage across the resistor is given by V(+) – V(–), and the sign of the current is positive when flowing through the device from the positive to the negative terminal. This convention ensures that the power absorbed by a resistor is always positive.
Variables
To set the priority and initial target values for the block variables prior to simulation, use the Variables tab in the block dialog box (or the Variables section in the block Property Inspector). For more information, see Set Priority and Initial Target for Block Variables.
Parameters
- Resistance
Resistance, in ohms. The default value is
1Ω.
Ports
The block has the following ports:
+Electrical conserving port associated with the resistor positive terminal.
-Electrical conserving port associated with the resistor negative terminal.