LM7812

7812 Voltage regulator is a type of self-contained fixed linear voltage regulator integrated circuit. The IC belongs to ic 78xx voltage regulator family. The 7812 voltage regulator IC is ease-of-use and available in very low cost. The last two digits of 7812 indicates the output voltage that is 12 V.

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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 …

5km FM Transmitter

“This is a good quality FM transmitter with 5km range and stable frequency brought by the modified oscillator, which is actually two oscillators built around Q2 and Q3 working at around 50MHz in anti-phase. The output is taken at the …

Laserbeam-Figures

“This instruction will show you a simple construction to use a controlled laser beam for projecting nice figures on a wall. What does the system do ? On the shaft of each motor a small mirror is installed. I did it …

2000 Watts Induction Heater

“Induction heaters are a great piece of tool for heating metal objects that can come in handy in a DIYers workspace when you need to get things red hot without messing up the whole space. So today we are going …

+12/-12 Volt Transformer Based Dual Voltage Power Supply

“In this tutorial i will show you how to make simple +12/-12 volt transformer based Dual Voltage Power Supply circuit. You can watch the video which is embedded in this step for construction, parts list, circuit diagram & testing or …

How to Make a DC Motor Speed Controller

“Previously I made a DC motor Speed Controller, the design was good but it could be used with only 12 V motors. Soon I needed to control 24 V motors, so I had to come up with a design I …

Short circuit protection for (almost) any power supply

“This instructable is about a universal short circuit protection that I’ve designed to use in bench power supplies. I’ve designed it to fit in most power supplies circuits. In order to this circuit fit in your bench power …

5V & 12V Regulated Power Supply

“This project can be used to power up TTL and CMOS based projects, it provides 5 VDC & 12 VDC outputs with an onboard mains transformer. The project is based on the industry popular 7800 series voltage regulator in TO220 packages …