Principal of bipolar junction transistor, Electrical Engineering

Assignment Help:

Principal of Bipolar junction transistor:

A bipolar junction transistor (BJT) is a three-terminal electronic device that constructed of doped semiconductor material and might be employed in amplifying or switching applications. Bipolar transistors are so named as their operation includes both electrons and holes. Charge flow in a BJT is because of bidirectional diffusion of charge carriers beyond a junction among the two regions of different charge concentrations. This type of operation is contrasted with unipolar transistors, like field-effect transistors, in which only one carrier type is included in charge flow because of drift. By design, most of the BJT or bipolar junction transistor collector current is because of the flow of charges injected from a high-concentration emitter into the base in which they are minority carriers that diffuse toward the collector, and so BJTs are categorized as minority-carrier devices.

52_Bipolar junction transistor.png

Schematic symbols for PNP- and NPN-type BJTs.


Related Discussions:- Principal of bipolar junction transistor

Superposition theroem, what are the limitations of superposition theroem

what are the limitations of superposition theroem

Write a note on emitter follower, Q. Write a note on emitter follower? ...

Q. Write a note on emitter follower? The emitter follower (EF) configuration is shown The emitter follower (EF) configuration is shown The EF amp has a voltag

Find the inductor current and voltage, Q. The energy stored in a 2-µH induc...

Q. The energy stored in a 2-µH inductor is given by w L (t) = 9e -2t µJ for t ≥ 0. Find the inductor current and voltage at t = 1 s.

Explain the time division space switching, a. Explain the time division spa...

a. Explain the time division space switching b. Verify the execution complexity of 2048 channel TST switch with 16 TDM links and 128 channels. Let the time slot of space switch

Zener Diode, A Zener diode has the specifications VZ=6.8V and PDmax.=500mW....

A Zener diode has the specifications VZ=6.8V and PDmax.=500mW. Assume RZ=0. (a) Find the maximum allowable current iZ when the Zener diode is acting as a regulator. (b) If a sing

Determine the transfer function c/r for the block diagram, Feedback amplifi...

Feedback amplifiers are of great importance in electronic circuits. The block diagram of a class of feedback amplifier is shown in Figure. Determine the transfer function C/R for t

Determine whether the diode in circuit, Determine whether the diode (consid...

Determine whether the diode (considered to be ideal) in the circuit of Figure (a) is conducting.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd