What is a current source?
A current source is something that has a potential, or voltage, that will cause an electrical current to flow in a connected electrical load. You cannot get current without applied voltage. There is a missing word. The usual term is constant current source.
What are the dependent current sources?
Finally, the last section details the dependent current sources which are voltage or current-controlled current sources. An ideal current source is a device that can supply a constant and stable value of current regardless of the voltage that must be provided to a specific output load.
Is a current-based source necessary?
It may seem that a current-based source is unnecessary, as the designer can always adjust the voltage to provide the desired amount of current. This is true in some ways, as current and voltage are linked by Ohm’s law (V = I × R).
What are ideal current sources?
Ideal current sources provide a constant and stable output current value regardless of the value of the voltage across the output load. They are identified by a flat I/V characteristic which presumes than an infinite amount of power can be provided.
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