Lm317 Adjustable Voltage Regulator Tutorial

Lm317 voltage regulator comparison with 78xx series of regulators. Lm317 is a positive voltage regulator with an adjustable voltage range from 1 25 v to 37 v. Lm317 adjustable regulator in this tutorial you will learn how to make an adjustable variable voltage power supply based on the lm317 regulator.

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Lm317 adjustable voltage regulator tutorial.

This lm317 calculator can be also be used for some other ics like lm338 or lm350. The capacitor c1 used for the filtering of dc input voltage and further fed to the vin pin of the lm317 voltage regulator ic. This tutorial explains everything you need to know about the lm317 adjustable regulator like for example. 10 1 25x 1 r2 240 r2 1680ω.

For example if the target output voltage is 10v then the r2 value is calculated as following. So this is how we calculate the r2 and output voltage for lm317 voltage regulator circuit. In most of the applications due to irregular loads the output voltage produced has fluctuations in it which can lead to damaging loads. Working of lm317 voltage regulator circuit.

The adjustable pin is connected with the two external resistor and connected with the vout pin of the ic. It can supply greater than 1 5 a at the output. Adjustable current regulator with the lm317 lm317 datasheet. This voltage regulator circuit is very simple.

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