DC Current Source

Ideal constant current source

Libraries:
Simscape / Foundation Library / Electrical / Electrical Sources

Description

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

You specify the output current by using the Constant current parameter, which can be positive or negative.

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

Examples

Ultracapacitor Energy Storage with Custom Component

Use the Simscape™ example library Capacitors_lib. The model is constructed using components from the example library. The circuit charges an ultracapacitor from a constant 0.05 amp current source, and then delivers a pulse of current to a load. The ultracapacitor enables a much higher current to be delivered than is possible directly from the current source. The library contains capacitor models with different levels of fidelity to allow exploration of the effect of losses and nonlinearity.

Open Model

Ports

Conserving

expand all

+ — Positive terminal
electrical

Electrical conserving port associated with the source positive terminal.

- — Negative terminal
electrical

Electrical conserving port associated with the source negative terminal.

Parameters

expand all

Constant current — Output current
`1 A` (default) | scalar

Current through the source. You can specify positive or negative values.

Extended Capabilities

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

Version History

Introduced in R2007a