Bipolar Junction Transistor
What is Bipolar Junction Transistor? The concept of BJT refers to a three-terminal semiconductor device consisting of two p-n-junctions that are formed by sandwiching either p-type or n-type semiconductors between two p-type semiconductors. Transistors can be used to transfer input signals through the circuits having lower to higher resistance. A BJT may also be implemented as a true solid-state switch in electrical circuits and can also be used to increase the strength of a weak signal. Symbol of BJT Construction of BJT Combinations of p-n junctions, or build a BJT i.e. a BJT is made of p and n type semiconductors . The two junctions divide the three semiconductors of a BJT which are: the base, collector, and the emitter. The emitter and collector part of transistor are placed on each side of the base. Emitter (E) : The outermost layer of a transistor, is commonly known as the emitter, it is heavily doped with N- type or...