Before starting with the circuit diagram, you should know the concept of NPN transistor as a switch. In an NPN transistor, Current starts flowing from collector to emitter only when a minimum voltage ...

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).

Arduino sketch to watch for a specific remote scancode and switch a transistor if it's received. I use it to turn on my OpenELEC media center PC without getting up from the couch, but the transistor ...

Identifying the terminals of a transistor requires the pin diagram of a particular BJT part, it will be available in the datasheet. There are two types of BJT - NPN and PNP transistors. In this ...

Microcontrollers—such as the ATmega328P chip that powers the venerable Arduino Uno as well as the Nano ... In it, a common 2N2222 NPN BJT transistor is used to switch the load of a PC fan with the ...

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 ... and can handle an amp or two. For example, the ...

Using a computer’s parallel port to turn some external device ON is a typical example. It can be used as a sort of current-controlled switch because s transistor’s collector current is proportionally ...

for example, when you want to switch a voltage instead of a ground. There are also certain amplifier configurations that need PNP units. Like an NPN transistor, a PNP can operate in saturation ...

Every time I log in, I’m presented with a list of new Blinky LEDs, Raspberry Pi accessories, Arduino ... Mega328 Transistor Tester Diode Triode Capacitance ESR Meter MOS/PNP/NPN L/C/R” in ...

Abstract: An optimized design of a 1.2 kV SiC NPN optically controlled transistor was developed. By using the Sentaurus TCAD tool, the doping concentration and thickness of the p-base region, as well ...