Controlled Voltage Source

R2026b

Ideal voltage source driven by input signal

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Controlled Voltage 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 Voltage Source block represents an ideal voltage source that is powerful enough to maintain the specified voltage across its terminals regardless of the current flowing through the source.

The output voltage is V = Vs, where Vs is the numerical value presented at the physical signal port.

Examples

Nonlinear Bipolar Transistor

An implementation of a nonlinear bipolar transistor based on the Ebers-Moll equivalent circuit. R1 and R2 set the nominal operating point, and the small signal gain is approximately set by the ratio R3/R4. The 1uF decoupling capacitors have been chosen to present negligible impedance at 1KHz. The model is configured for linearization so that a frequency response can be generated.

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Ports

Input

vT — Voltage control signal, V

physical signal

Input physical signal that specifies the voltage 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: vT

Conserving

+ — Positive terminal

electrical

Electrical conserving port associated with the source positive terminal.

Programmatic Use

Port: p

- — Negative terminal

electrical

Electrical conserving port associated with the source negative terminal.

Programmatic Use

Port: n

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 Voltage Source"

Example: add_block("fl_lib/Electrical/Electrical Sources/Controlled Voltage 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