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

Give the properties and application of glass, Give the properties and appli...

Give the properties and application of glass. Glass - It is an inorganic material made by the fusion of various metallic oxides. The properties of glass are as - Glass is

FET, shockely equation?

shockely equation?

Determine the current in the circuit and the voltage, Q. Two identical junc...

Q. Two identical junction diodes whose volt-ampere relation is given by Equation in which IS = 0.1 µA, VT = 25 mV, and η = 2, are connected as shown in Figure. Determine the curren

Explain common emitter circuit, Q. Explain Common Emitter Circuit With The ...

Q. Explain Common Emitter Circuit With The Help Of A Circuit Diagram? Most transistor circuits have the emitter,rather than the base,as the terminalcommon to both input and out

Determine rms and average value, Determine RMS and average value: Dete...

Determine RMS and average value: Determine RMS and average value of the output of half wave rectifier. Solution The waveform of current, output of the half wave rectif

List out the reasons for automation, Describe the term (i) Automation ...

Describe the term (i) Automation (ii) Automated lines 04 List out the reasons for automation and discuss in detail the process of work part transport.

Find kfm for the modulator using carsons rule, Q. A commercial FMstation br...

Q. A commercial FMstation broadcasts a signal with 180-kHz bandwidth when |f(t)|max = 2 V. Find kFM for the modulator if the spectral extent of f (t) is 30 kHz, by using Carson's r

Solving electrical circuits, i need help solving an electrical circuit, usi...

i need help solving an electrical circuit, using kirchoffs laws, it a diamond shape with one voltage source

How to calculate the bus - bar voltage and kilowatt output., Q.   Two shunt...

Q.   Two shunt wound generators running in parallel supply a total load current of 4000 A. Each generator has an armature resistance of 0.02? and a field of 40?. The fiels are exci

Find the transmitters unmodulated carrier power, At the transmitter in a st...

At the transmitter in a standard AM system, P f = 50 W. In the receiver (S 0 /N 0 ) AM = 250 when (S i /N i ) AM = 3000. Find the transmitter's unmodulated carrier power and t

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