A few months back I was working on a project in which I had to control the home appliance over wifi using the ESP8266 Wifi module. In a situation like this 78xx series of regulators fail to work or you will need complex circuit designing which trusts me nobody likes. Or you are working on a project where you need 3.3 volts and current around 1 ampere. There are situations when we need variable voltage for example a workbench power supply. No matter how many regulators are invented the 78xx series will always stay cool. Another voltage regulator from the same series which is 7812 I have been using this voltage regulator for powering up a 12v relay and some small DC motors. The maximum of the sensors which are used with the Arduino are low power devices and they can be powered up using the 7805 voltage regulator. I have been using the 7805 voltage regulator for powering up the 8051 family microcontrollers, ATmega328, and sensors that need 5 volts. There are some factors like the 78xx series of regulators give you the fixed voltage. Although we have this much variety of the voltage regulators then why we need the LM317 adjustable regulator? The 78 represents the series while the last two digits represent the voltage. The 78xx series consists of the following regulators The LM78xx series of regulators is quite famous throughout the world and are frequently used in millions of electronics-based projects. I would appreciate your support in this way! I may make a commission if you buy the components through these links. Without any further delay, let’s get started!!! How to make 3.3V, 5V, 12V, and 24V regulated power supplies using the LM317 Regulator.LM317 Power supply circuit diagram and calculations.LM317t price and its Amazon Purchase link.LM317 voltage regulator comparison with 78xx Series of Regulators.This tutorial explains everything you need to know about the LM317 Adjustable Regulator like for example LM317 Adjustable Regulator- In this tutorial, you will learn how to make an adjustable variable voltage power supply based on the LM317 regulator. Variable Voltage using LM317 Regulator:.24V regulated Voltage using LM317 Regulator:.12V regulated Voltage using LM317 Regulator:.LM317 based 5V regulated power supply Proteus Simulation:.

5V regulated Voltage using LM317 Regulator:.

3.3V regulated voltage using LM317 regulator:.

LM317 variable voltage regulator circuit diagram Circuit Diagram:.LM317 adjustable regulator, datasheet specifications:.

Lm317t voltage regulator datasheet