LM317 Adjustable Voltage Regulator complete Tutorial with Practical Experiments

In this video, I have discussed all the features of LM 317 Adjustable Voltage Regulator with different Practical Experiments, like motor speed controller, LED dimmer, variable DC power supply etc.

I will request you to watch the complete tutorial video of LM317 but you can also jump to any topic by click on the following Time Stamps:

00:26 Operating Condition of LM317 from Datasheet [voltage, current, temperature rating etc]
01:28 Explained how the LM317t circuit works with voltage equation [ use of capacitors, resistors in circuit]
02:12 Pinout of LM317t ic [Adjust pin, output pin & input pin]
03:20 How to make variable dc power supply circuit with LM317t on breadboard
04:21 LM 317 circuit analysis [ input and output voltage measurement with multimeter]
05:55 How to use LM317 as a fixed voltage regulator [LM317t as 7806]
09:33 How to calculate power dissipation in LM 317 [ When heat sink should be used with LM 317]
11:26 Protections for LM 317 circuit for different applications from LM317 datasheet

In this video, I have used LM317t which is the TO-220 type and most common type LM317 IC. With a very simple circuit, the Output voltage can be varied from 1.25V to 37V with current rating 0.01A to 1.5A
As lm317 is a linear voltage regulator so it is not so efficient but the circuit is very simple. so it is widely used in different applications like adjustable DC power supply, fan speed controller, LED dimmer etc.
By solving a simple LM317 output voltage equation you can easily use LM317 as any fixed voltage regulator of 78XX series.
It better to use a heat sink with LM317t ic for higher power dissipation.

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