Hi friends...Today i am here with another article about transistor which is very important component of electronics.In this article i will discuss many topic regarding transistor and there uses..so lets start....... Introduction A semiconductor device with three connections, capable of amplification in addition to rectification. Transistors are used most widely used in most of the electronic projects and circuits. Transistors are used for amplification , like amplifying small current output of any logic IC to drive a lamp or relays etc. A transistor may be used as a switch (either fully on with maximum current, or fully off with no current) and as an amplifier (always partly on). The amount of current amplification is called the current gain, symbol hFE. Types There are two types of standard type of transistors , NPN and PNP, with different circuit symbols. The letters refer to the layers of semiconductor material used to make the transistor. Most transistors used today are NPN beca...
