ProjectsContests
Asked by in Circuits
1584Views5Replies

Author Options:

edit topicdelete topic

How exactly does an N-P-N transistor work? Answered

I need to know about this topic to the core, like from where the electrons flow, which one is heavily/moderately/lightly doped, why electrons flow from that direction and not the other, etc. thanks guys!

Tags:Electronicssemiconductorstriodes

Comments

The forums are retiring in 2021 and are now closed for new topics and comments.
0
nurdee1
nurdee1

9 years ago

OK Basically a transistor works by having three or more layers of silicon that have different charges. These different charges are achieved by doping ( slightly contaminating the silicon ) the silicon with different materials. NPN stands for Negative-Positive-Negative. That means it consists of a negatively doped layer of silicon then a positively doped silicon layer and then another negatively doped layer.

0
ankur2893
ankur2893

Answer 9 years ago

i wanted to know from where do the electrons start flowing, ie from which to which terminal. the basic knowledge of transistors even i have, ie the highly/moderately/lightly doped parts of n-p-n/p-n-p. i was curious abt what happens inside the wires(if u know what i mean) about how exactly are the waves amplified.

0
frollard
frollard

9 years ago

to add to the others:

http://www.youtube.com/watch?v=xvrjIJw3OSU