NPN Transistor

Simple Wireless Power Transmission Circuit to glow an LED Simple Wireless Power Transmission Circuit to Glow an LED

The Wireless Electricity Transfer concept is not new. It was first demonstrated by Nikola Tesla in the year 1890. Nikola Tesla…

New Tansistors with Smaller Form Factor(3.3mm X 3.3mm) with Increased Power Density Bipolar Transistors with Smaller Form Factor (3.3mm X 3.3mm) and Increased Power Density

Diodes Incorporated extends its transistor family with release of NPN and PNP power bipolar transistors in a much smaller form…

Missing Pulse Detector Circuit Missing Pulse Detector Circuit

When a signal goes through a sudden change from base value to higher value and again comes to base value from higher value…

Simple Keyhole Lighting Device Circuit Simple Keyhole Lighting Device Circuit

Sometimes when we reach home in the night it’s hard to unlock the door lock, as we are not able to find the keyhole because of…

Darlington Transistor Darlington Transistor Pair

Darlington transistor is invented in 1953, by a US electrical engineer and inventor, Sidney Darlington. Darlington transistor…

Simple Sine Wave Generator Circuit using Transistor Simple Sine Wave Generator Circuit using Transistor

Previously we have built simple Square Wave Generator circuit, today in this tutorial, we are going to show you how to generate…

Temperature controlled DC fan using Thermistor Temperature Controlled DC Fan using Thermistor

“Automation is good, so long as you know exactly where to put the machine’’, In this tutorial we are making a Temperature…

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,…

Transistor Switching Circuit Transistor Switching Circuit: Examples of How Transistor Acts as a Switch

Transistors are made up of semiconductor material which is most commonly used for amplification or switching purpose, although…