Reverse bias, Electrical Engineering

Assignment Help:

Reverse bias

Reverse biased generally refers to how a diode is employed in a circuit. If a diode is reverse biased, the voltage at the cathode is gets higher than that at the anode. Hence, no current will flow till diode breaks down. Connecting the P-type region to the negative terminal of the battery and the N-type region to the positive terminal corresponds to reverse bias. The connections are demonstrates in the following diagram: 

728_Reverse Bias 2.png

Figure: (a) Blocks of P and N semiconductor in contact have no exploitable properties. (b) Single crystal doped with P and N type impurities develops a potential barrier.

This type of separation of charges at the PN junction constitutes a potential barrier. This potential barrier has to be overcome through an external voltage source to form the junction conduct.

523_Reverse Bias 1.png

Figure: A silicon p-n junction in reverse bias.

The creation of the junction and potential barrier occurs during the manufacturing process. The magnitude of the potential barrier is a function of the materials employed in manufacturing. Silicon PN junctions comprises a higher potential barrier than germanium junctions.


Related Discussions:- Reverse bias

Show steady-state sinusoidal analysis with pspice, Q. Show Steady-State Sin...

Q. Show Steady-State Sinusoidal Analysis with PSpice PSpice can easily solve steady-state ac circuits for currents and voltages. Ac voltage sources, which must begin with the l

Compute force vector, Q. Consider a current element I 1 d ¯l 1 = 10 dz ¯a...

Q. Consider a current element I 1 d ¯l 1 = 10 dz ¯az kA located at (0,0,1) and another I 2 d ¯ l 2 = 5dx ¯ax kA located at (0,1,0). Compute d ¯F 21 and d ¯F 12 experienced by

Wireless and communication, With a maximum excess delay of and a chip durat...

With a maximum excess delay of and a chip duration of , the multipath components fall in delay bins. This means that we experience leakage of energy between chips and the channel i

Dc motor, what is the reason of low meagger result of dc motor

what is the reason of low meagger result of dc motor

Power, why do we use commutator?

why do we use commutator?

Image frequency for an fm station, Q. Show that the image frequency for an ...

Q. Show that the image frequency for an FM station does not fall in the range of 88.1-107.9 MHz, regardless of the choice of high- or low-side local oscillator.

Show noise and stability of operational amplifier, Q. Show Noise and Stabil...

Q. Show Noise and Stability of operational amplifier? Noise This refers to the small, rapidly varying, random spurious signals generated by all electronic circuits. Noise

Determine l and c of the band pass filter circuit, Q. Determine L and C of ...

Q. Determine L and C of the band pass filter circuit of Figure to have a center frequency of 1 MHz and a bandwidth of 10 kHz. Also find the Q of the filter.

Field-effect transistor, Field-Effect Transistor: The field-effect tra...

Field-Effect Transistor: The field-effect transistor that is abbreviated as FET relies on an electric field to control the shape and therefore the conductivity of a channel of

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