Current-Controlled Current Source

R2026b

Linear current-controlled current source

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Current-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 Current-Controlled Current Source block models a linear current-controlled current source, described with the equation

$$I2=K·I1$$

where:

• I2 is the output current.

• K is the current gain.

• I1 is the control current.

The + and - ports on the left side of the block are the control ports. To use the block, connect the control ports to the control current source. The arrow between these ports indicates the positive direction of the control current flow. The two ports on the right side of the block are the output ports. They generate the output current, with the arrow between them indicating the positive direction of the output current flow.

Variables

To set the priority and initial target values for the block variables prior to simulation, use the Initial Targets section in the block dialog box or Property Inspector. For more information, see Set Priority and Initial Target for Block Variables.

Nominal values provide a way to specify the expected magnitude of a variable in a model. Using system scaling based on nominal values increases the simulation robustness. Nominal values can come from different sources, one of which is the Nominal Values section in the block dialog box or Property Inspector. For more information, see Modify Nominal Values for a Block Variable.

Ports

Conserving

+ — Positive control terminal

electrical

Electrical conserving port associated with the positive control terminal.

- — Negative control terminal

electrical

Electrical conserving port associated with the negative control terminal.

head — Output current positive terminal

electrical

Electrical conserving port associated with the output current positive terminal.

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.

tail — Output current negative terminal

electrical

Electrical conserving port associated with the output current negative terminal.

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.

Parameters

Current gain K — Ratio of output current to control current

1 (default) | scalar

Ratio of the current between the two output terminals to the current passing between the two control terminals.

Extended Capabilities

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

Version History

Introduced in R2007a