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Controlled Current Source
Implement a controlled current source.
Library
Electrical Sources
Description
The Controlled Current Source block provides a current source controlled by a Simulink signal. The positive current direction is as shown by the arrow in the block icon.
You can initialize the Controlled Current Source block with a specific AC or DC current. If you want to start the simulation in steady-state, the block input must be connected to a signal starting as a sinusoidal or DC waveform corresponding to the initial values.
Dialog Box and Parameters
- Initialize
- If checked, initialize the Controlled Current Source block with the specified Initial current, Initial phase, and Initial frequency parameters.
- Source type
- The type of current source. Select AC to initialize the Controlled Current Source Block as an AC current source. Select DC to initialize the Controlled Current Source block as a DC current.
- The Source type parameter is not visible in the dialog box if the Initialize parameter is not checked.
- Initial current
- The initial peak current for the initialization of the source, in amperes (A). The Initial current parameter is not visible in the dialog box if the Initialize parameter is not checked.
- Initial phase
- The initial phase for the initialization of the source, in degrees. The Initial phase parameter is not visible in the dialog box if the Source type parameter is set to DC.
- Initial frequency
- The initial frequency for the initialization of the source, in hertz (Hz). The Initial frequency parameter is not visible in the dialog box if the Source type parameter is set to DC.
- Measurements
- Select Current to measure the current flowing through the Controlled Current Source block.
- Place a Multimeter block in your model to display the selected measurements during the simulation. In the Available Measurement listbox of the Multimeter block, the measurement will be identified by a label followed by the block name:
Measurement
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Label
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Current
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i Src:
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Example
Generate a 60 Hz current modulated at 5 Hz with the Controlled Current Source block.
This circuit is available in the psbcontrolcurr.mdl file. Simulation produces the following waveforms:
See Also
AC Current Source, Controlled Voltage Source, Multimeter
| | Bus Bar | | Controlled Voltage Source | |