In the fixed source, if the internal conductance is small (ie, the load is compared, the internal resistance of the power supply is large), the current output from the power supply will not change with the load, which is called a constant current source.
The characteristics of the constant current source are as follows:
1. The constant current source provides a constant current I\-S in the circuit, the value of which is independent of the magnitude of the load resistance R\-L.
2. The voltage across the constant current source is determined by the external circuit.
The constant current source is an ideal component and does not actually exist. Only when the internal resistance R\-S of the current source is much larger than the load resistance R\-L, it can be approximated as a constant current source.
The characteristics of the constant current source are as follows:
1. The constant current source provides a constant current I\-S in the circuit, the value of which is independent of the magnitude of the load resistance R\-L.
2. The voltage across the constant current source is determined by the external circuit.
The constant current source is an ideal component and does not actually exist. Only when the internal resistance R\-S of the current source is much larger than the load resistance R\-L, it can be approximated as a constant current source.
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