About This schematic is a project in which we control the switching of bulb/lamp using Arduino and NPN TIP120 Power transistor (used as a switch).

A lower voltage could be used, but that would require a little amplifier to raise the signal voltage to something the AD input can reliably read. The Arduino checks the number of opens and shorts for ...

A teacher I know is stuck, with only npn transistors in the supply cupboard and the need to create a reversible motor drive for an Arduino project. Reversing ‘bridges’ have four switches (relay ...

EEWeb Explains How To Choose The Right Transistor Switch and Compares PNP and NPN Transistors. Visit Today To Learn More.

Open-circuit transistor Let’s refer to a PNP transistor (the results immediately generalize to an NPN transistor).

Learn how to control the speed of a DC motor using Arduino and a MOSFET. This guide covers component selection, circuit setup, coding, and practical demonstrations for building an efficient motor ...

There are numerous differences between NPN and PNP transistors, and even though both are bipolar junction transistors, the direction of current flow is the name of the game.

A double-diffused NPN germanium mesa transistor has been designed for ultra-high Speed switching applications. This device is intended for switching circuit use in the 1 to 100 mA range, affording the ...