DC Current Source - Model constant current source
Library
SPICE-Compatible Sources
Description
The DC Current Source block represents a constant current source
whose output current value is independent of the voltage across its
terminals.
The block uses a small conductance internally to prevent numerical
simulation issues. The conductance connects the + and - ports of the
device and has a conductance GMIN:
By default, GMIN matches the Minimum
conductance GMIN parameter of the SPICE Environment Parameters
block, whose default value is 1e–12.
To change GMIN, add a SPICE
Environment Parameters block to your model and set the Minimum
conductance GMIN parameter to the desired value.
Dialog Box and Parameters
- Constant value, DC
The value of the DC output current. The default value is 0 A.
Ports
The block has the following ports:
- +
Positive electrical voltage.
- -
Negative electrical voltage.
See Also
DC Voltage Source
 | Current-Controlled Switch | | DC Motor |  |
Learn more about Simulink through this collection of videos, articles, technical literature and the Getting Started with Simulink Guide.
Get this Simulink Kit
Store 
