Npn Transistor Switching Circuit. How it s work the basic transistor switching with arduino for arduino digital 7th pin is output if the arduino send logic 1 high the mini cooling fan turns on. Based on the voltage applied at the base terminal of a transistor switching operation is.
Base collector junction that is reverse biased and base emitter junction that is forward biased. If the transistor base terminal is 0 low then fan turns off for delay and other you can set with help of arduino ide and arduino uno. An npn transistor has three terminals a collector emitter and base.
Npn transistor switching circuit diagram.
Transistor as a switch. Two polarities is abbreviated as bipolar hence the name bipolar junction transistor. But in all these applications the basic purpose is switching. And one simple npn transistor.
