Here emitter and collector is p-type semiconductor so they contain majority charge carrier as holes. middle region base has a narrow layer or smallest width. ![]() Here you can see every region have the different width. This transistor has mainly three regions. This type of transistor fig you can see below. Pnp transistor is made by two p type semiconductor and one n type semiconductor. If you like this post probably you might like my next projects, so please support me by subscribing my blog and like my Facebook Page.A device which formed by two p-type semiconductors separated by an n-type semiconductor. Thanks for reading, you can contact me by leaving a comment. And as you decrease voltage to the base of a NPN transistor, the transistor turns on less and less, until the voltage is so low, the transistor no longer conducts across emitter to collector, and shuts off.When you increase voltage to the base of a NPN transistor, the transistor is turned on more and more until it conducts fully from emitter to collector.A NPN transistor conducts from emitter to collector.And as you decrease voltage to the base of a PNP transistor, the transistor turns on more and more, until the transistor fully conducts from collector to emitter.When you increase voltage to the base of a PNP transistor, the transistor is turned off more and more until it no longer conducts and completely shuts off. ![]() A PNP transistor conducts from collector to emitter.The difference between a PNP transistor and a NPN transistor is their polarity and their actions are reversed… PNP Transistor (you should see my project after reading this post) I’ve decided to write this post to support a bit of the theory behind my new project that identifies the PNP and NPN transistors easily.
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