 Hello friends, I hope you all are doing great. In today’s tutorial, we will discuss What is the Current Source. In an electrical system, there are two main sources first one is a voltage source and the other one is the current source. There are further two types of current sources real and ideal current source. The current produced by the ideal current source has the same value irrespective the variation in the circuitry voltage. As the current of the ideal source does not depend on any parameter of circuitry like the voltage, resistance, so it also called independent source.

The current source is the correspondent of the voltage source. In today’s post, we will have a look at its working, types, circuits, ideal sources and some other related factors. So let’s get started with the what is the current source.

#### What is the Current Source

• The Current Source is an active component of the circuitry that provides the constant current in a circuit irrespective of the variation in the voltage of the circuitry.
• From the definition of the current source, we can conclude that it is the ideal source. But, in real-world, there are no ideal sources exits.
• For example, it can explain that if we connect an ideal source with open circuitry it will not work.

#### Connections of the Current Source

• The current sources can be joined with one another to increment and decrement in the value of the current.
• There are two methods by that they are connected with each other according to the circuitry demand. First one is a series and the other is parallel.
• Let’s discuss these two connections methods one by one.

Current Source in Parallel

• You can see in the given diagram that the 2 current sources are connected parallel. Parallel connected current sources behave like a single source and its output is the sum of the currents of 2 sources.

Parallel Opposing Current Sources

Current Sources in Series

#### Practical Current Source

• As we have discussed above that the ideal current source provides the constant current irrespective of the variation in the output load. Due to this fact it also is known as the independent source.
• So we can say that the ideal current source has unlimited value of the resistance.

#### Comparison between Current and Voltage Sources

Voltage Source

• Mostly electric power source like battery and electric supply in our homes are known as the voltage source.
• All of these sources deliver the same value of the voltage, as the current passing through the circuitry within limits.
• In case of open circuitry, ideal source delivers 0 power but when it is short-circuited it has unlimited power.
• An ideal source has 0 value of resistance when it connected in series circuitry.
• The practical source has some value of resistance but not zero, almost less than one Ω.
• Try to avoid the use of the ideal sink in the short-circuited arrangments, and not connect it with such source whose voltage value is not similar to the ideal source.

Current Source

• Current source delivers the same value of the current, till that point the resistance of the load is very less.
• In the case of the short-circuited conditions, the ideal current delivers 0 power but in case of the open circuitry, it gives the unlimited value of power and voltage.
•  Contrary to the ideal sink the practical current sink has the higher but the limited value of the resistance.
• Like voltage source try to avoid the use of the ideal current sink in open-circuited arrangements and with a source that does not have similar current to the ideal source. But sometimes such arrangments used for complementary metal oxides semiconductor circuitries.

It is the detailed article on the current source, I have each and everything related to the current source. If you have any question about voltage source ask in comments. Thanks for reading take care till the next tutorial.