The LM317 device is an adjustable three-terminal positive-voltage regulator capable of supplying up to 1.5 A over an output-voltage range of 1.25 V to 37 V. It requires only two external resistors to set the output voltage. The device features a typical line regulation of 0.01% and typical load regulation of 0.1%.

2025年2月19日 · The LM317 linear voltage regulator is the top pick for a variable DC power supply. See its pinouts, circuit calculator, and example circuits.

LM317 is a positive-voltage regulator with an adjustable voltage range from 1.25 V to 37 V. It can supply greater than 1.5 A at the output. In most of the applications, due to irregular loads, the output voltage produced has fluctuations in it which can lead to damaging loads.

2017年12月11日 · In this tutorial we will show you how to get the variable regulated Voltage from the LM317 IC. With a small circuitry attached with LM317 we can get variable voltage up to 37v with 1.5A max current. The output voltage is varied by varying the resistor connected to …

2020年12月12日 · In this project, we will be making a 1.25V to 37V LM317 adjustable voltage regulator circuit. This IC can provide an output current up to 1Amp. It’s a three-terminal positive voltage regulator IC. This voltage regulator requires only two external resistors to …

2017年9月30日 · The LM317 internal circuit diagram is an easy to understand but powerful device that can be used for a wide variety of applications. With its adjustable settings and wide range of supported voltages, it’s perfectly suited for projects such …

In this section we will first show specifications and pinout of the LM317, afterwards we will show how to make three different practical circuits with LM317. To finish the practical side of this section you will need:

In this project, I have designed a simple adjustable voltage DC power supply using the LM317 IC with an LM317 power supply circuit diagram. As this circuit has an inbuilt bridge rectifier so we can directly connect 220V/110V AC supply at the input. The circuit converts 230volt / …

2022年9月4日 · This document describes a voltage regulator circuit using an LM317HVT voltage regulator and two TIP35C transistors. The circuit takes an input voltage and uses the LM317HVT and resistors to regulate the output voltage, with the transistors and capacitor filtering the output.

For example, the LM317 may receive 12V as the input and output a constant 10V as output. LM317 Schematic Diagram. Now that you know the pins, how do we modify the voltage to that which we want output? We do this by changing the value of the resistor connected to the Adj pin of the voltage regulator. Let's see how the schematic is set up: