LM317

The LM317 is a popular adjustable positive linear voltage regulator. It was designed by Robert C Dobkin in 1976 while he worked at National Semiconductor.

Main Content

Brushed DC Motor Controller Using Infra-Red Remote

“This project enables the user to control a Brushed DC Motor using an Infra-Red Remote Control, thus controlling speed, direction, and also brake of DC Motor is possible. It’s an Arduino compatible open-source hardware that helps you develop many …

DIY Arduino Miliohmmeter for measure low value res

“Measuring low resistances with a standard multimeter is difficult and very inaccurate. This device solves this problem and serves for accurate measurement of small resistances in the range of 0.1 ohm up to 50 ohms. This device is very …

The Arduino CNC Drawing Machine

“Hi guys, so this instructable will help you out to make simple, less budget Arduino cnc plotter. In this project i had used some recycled parts like printer rail, smps box cd drive mechanism etc.. so the supplies that you …

4 Microphones Mixer Preamplifier

“Some time ago I was asked to solve the following problem: a small choir plays a number of four fixed microphones. The audio signals from these four microphones had to be amplified, mixed and the resulting signal had to be …

20A/40V Integrated Power Module for DC Brushless Motors (BLDC)

“This project is based on STK984-090A which is a fully-integrated inverter with current rating 20A and supply voltage 40V DC. It has been designed to drive the Brushless DC Motors (BLDC) and permanent magnet synchronous motors (PMSM), the module …

LM317 Current Boosting Secrets!

“LM317 Current Boosting Secrets! LM317 is one of the most popular adjustable regulator chips. The output voltage of the regulator can be adjusted from 1.25V to 35V. However, the chip can deliver currents up to 1.5A which is …

Adjustable Double Output Linear Power Supply

“Features: - AC – DC Conversion Double output voltages (Positive – Ground – Negative) - Adjustable positive and negative rails - Just a Single-Output AC transformer - Output noise (20MHz-BWL, no load): Around 1.12mVpp - Low noise and stable outputs (ideal to power Opamps and Pre-amplifiers …

Arduino WiFi Shield Using ESP8266

“This project mainly focuses on creating an ESP8266 based WiFi shield for Arduino UNO. This shield can be used to program ESP8266 in two modes. Either through AT commands or directly through the Arduino IDE. What is ESP8266?The ESP8266 …

Linear Variable Voltage Regulator 1-20 V

“A linear voltage regulator maintains a constant voltage at output if the input voltage is greater than output while dissipating the difference in the voltage times the current watts of power as heat. You can even make a crude voltage …

Arduino Power Supply Shield With 3.3v, 5v and 12v Output Options (Part-1)

“Hello guys! I am back with another Instructable. When developing electronic projects, the power supply is one of the most important parts of the whole project and there is always a need for multiple output voltage power supply. This is …