Adjustable Voltage Regulator Circuit

     Adjustable Voltage Regulator Circuit

         https://youtu.be/pVQB-XiKBrk

Components Used - 

1. Lm317 

2. 10K Potentiometer

3. 33uf 40v Capacitor

4. Voltmeter

5. 1k Ohm Resistor

An adjustable voltage regulator circuit is a circuit that can be used to produce a variable output voltage from a fixed input voltage. This type of circuit is commonly used in electronic devices to provide a variety of different voltages for different components.

One of the most common types of adjustable voltage regulator circuits is the LM317 circuit. The LM317 is a three-terminal voltage regulator that can be used to produce an output voltage from 1.25V to 37V. The output voltage of the LM317 is determined by two external resistors, which are connected to the ADJ and OUT terminals of the IC.

Circuit Diagram-  

The following diagram shows a basic LM317 circuit:

In this circuit, the input voltage is connected to the IN terminal of the LM317. The ADJ terminal is connected to a variable resistor, which is used to adjust the output voltage. The OUT terminal is connected to the load, which is the device that will be powered by the regulated output voltage.

The value of the variable resistor can be used to adjust the output voltage of the LM317 in a wide range. For example, if the input voltage is 12V and the variable resistor is set to 100 ohms, the output voltage will be 1.25V. If the variable resistor is set to 200 ohms, the output voltage will be 2.5V.

The LM317 is a versatile and easy-to-use voltage regulator that can be used in a variety of different applications. It is a popular choice for electronic hobbyists and DIYers, as well as for professional engineers.

Here are some of the advantages of using an adjustable voltage regulator circuit:

* They can be used to produce a variable output voltage from a fixed input voltage.

* They are relatively easy to build and use.

* They are available in a variety of different voltage ranges.

* They are relatively inexpensive.

Here are some of the disadvantages of using an adjustable voltage regulator circuit:

* They can be inefficient, especially at low output voltages.

* They can generate heat, which can be a problem in some applications.

* They can be sensitive to noise, which can cause the output voltage to fluctuate.

Overall, adjustable voltage regulator circuits are a versatile and useful tool that can be used in a variety of different applications. They are relatively easy to build and use, and they are available in a variety of different voltage ranges.