Lm317 Adjustable Voltage Regulator Tutorial

Lm317 voltage regulator comparison with 78xx series of regulators. Adjustable current regulator with the lm317 lm317 datasheet. 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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So this is how we calculate the r2 and output voltage for lm317 voltage regulator circuit.

Lm317 adjustable voltage regulator tutorial.

In most of the applications due to irregular loads the output voltage produced has fluctuations in it which can lead to damaging loads. This voltage regulator circuit is very simple. For example if the target output voltage is 10v then the r2 value is calculated as following. 10 1 25x 1 r2 240 r2 1680ω.

It can supply greater than 1 5 a at the output. Back to basics ii. The adjustable pin is connected with the two external resistor and connected with the vout pin of the ic. Working of lm317 voltage regulator circuit.

Lm317 is a positive voltage regulator with an adjustable voltage range from 1 25 v to 37 v. The capacitor c1 used for the filtering of dc input voltage and further fed to the vin pin of the lm317 voltage regulator ic. Eu 220v diy lm317 adjustable voltage power supply board learning kit with case assembling lm317 adjustable voltage power supply for your own you can get ad. This lm317 calculator can be also be used for some other ics like lm338 or lm350.

This tutorial explains everything you need to know about the lm317 adjustable regulator like for example.

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