Controlled Current Source

R2026b

Ideal current source driven by input signal

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Controlled Current Source block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
Simscape / Foundation Library / Electrical / Electrical Sources

Description

The Controlled Current Source block represents an ideal current source that is powerful enough to maintain the specified current through it regardless of the voltage across the source.

The output current is I = Is, where Is is the numerical value presented at the physical signal port.

The positive direction of the current flow is indicated by the arrow.

Examples

Solenoid

A solenoid with a spring return. The solenoid is modeled as an inductance whose value L depends on the plunger position x. The back emf for a time-varying inductance is given by:

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Ports

Input

iT — Current control signal, A

physical signal

Input physical signal that specifies the current value.

The port name is not visible in the block icon, but you can see this name in the underlying source file by clicking the Source code link in the Description tab of the block dialog box.

Programmatic Use

Port: iT

Conserving

+ — Positive terminal

electrical

Electrical conserving port associated with the source positive terminal.

Programmatic Use

Port: head

- — Negative terminal

electrical

Electrical conserving port associated with the source negative terminal.

Programmatic Use

Port: tail

Programmatic Use: Add Block

To add the block programmatically, use the add_block function with one of these library block paths as the source.

"fl_lib/Electrical/Electrical Sources/Controlled Current Source"

Example: add_block("fl_lib/Electrical/Electrical Sources/Controlled Current Source","myModel/myBlock",MakeNameUnique="on")

For information about programmatic access to individual block parameters, see the Programmatic Use section of parameter descriptions on this page.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2007a