power electronics

What is NPN Transistor: Working of Transistors as a Switch and Amlifier NPN Transistors

The first bipolar junction transistor was invented in 1947 at Bell laboratories. “Two polarities” is abbreviated as bipolar,…

Voltage Divider Circuit Example Voltage Divider Circuit

A Voltage or Potential Divider Circuit is commonly used circuit in electronics where an input voltage has to be converted to…

12v Battery Charger / Power Supply Circuit using LM317 12v Battery Charger Circuit using LM317 (12v Power Supply)

Most of our electronics projects are powered by a Lead Acid battery, in this project let us discuss how to recharge this lead…

0-24v 3A Variable Power Supply using LM338 0-24v 3A Variable Power Supply using LM338

Batteries are generally used to power up the Electronic Circuit and Projects, as they are easily available and can be connected…

Arduino Variable Power Supply Variable Power Supply By Arduino Uno

In this tutorial we will develop a 5V variable voltage source from Arduino Uno. For that we are going use ADC (Analog to…

Voltage Multiplier Circuit Voltage Multipliers

Voltage Multipliers are the circuits where we get very high DC voltage from the Low AC voltage supply, a voltage multiplier…

Using 5V DC Power Supply from Computer USB 5V DC Power Supply from Computer USB

If you got fed up of buying new batteries for your circuits and want a reliable power source, then here is way. We use our…