Semiconductor diode, Electrical Engineering

Assignment Help:

Semiconductor Diode:

the semi conductor diode is formed by simply bringing n and p tripe material together (constructed from same base ge and si), at the instant the two material are joined the electrons and holes in the region and functions will combine  resulting in lack of carriers in the reason of junctions. The reason of uncover positive and negative ions is called the depletion reasons due to the depletion   of carriers in this region.

In absence of applied bias voltage the net flow of charge in any directions for the semi conductor diode is zero, hence no current is flow.

If an external voltage v is applied is    the p-n junctions such that positive terminal to n type and negative terminal to p type material , then the depletions layer will increased and only reverse leakage current minority carries will flow.

A forward condition is establish by Appling the positive potential p type material and negative potential to n type material and holes in the p toe material with the ions near the boundary and reduce the width the depletion regions. As the applied bias increase in magnitude, the depletions regions will continue to decrease in Edith until a flood of electrons can pass through the junctions, resulting in an exponential rise in the current in the forward biased regions of characteristics.


Related Discussions:- Semiconductor diode

Calculate armature voltage, Question: A DC, separately excited motor is...

Question: A DC, separately excited motor is supplied from a 240-V source. When the motor is unloaded, it draws 1A of current from the source. When the motor is loaded, it draws

Give illustration of and and or gate - microprocessor, Give Illustration of...

Give Illustration of AND and OR Gate - Microprocessor? Illustration: The image below demonstrate the 4 possible inputs into a 2-input AND gate and all the corresponding outputs

What is synchronous data transfer, What is synchronous data transfer? I...

What is synchronous data transfer? It is a data method which is used when the I/O device and the microprocessor match in speed. To transfer a data to or from the device, the us

Microprocessor, Memory map of tpa in a personal computer and explain such o...

Memory map of tpa in a personal computer and explain such of the areas in brief

Write down shockleys equation, Q. Write down Shockley's equation. What is i...

Q. Write down Shockley's equation. What is its importance? I D = I DSS [1-(V GS /V P )]^2 Shockley's equation is used to plot transfer characteristics. The transfer charac

Power, why do we use commutator?

why do we use commutator?

How many interrupts does 8085 have, How many interrupts does 8085 have, men...

How many interrupts does 8085 have, mention them The 8085 has 5 interrupt signals; they are INTR, RST7.5, RST6.5, RST5.5 and TRAP

Introduction to electronics, Explain the difference between a microprocesso...

Explain the difference between a microprocessor and an embedded microcontroller

the battery and capacitor combination for power backup, Why do wenot see t...

Why do wenot see the battery and capacitor combination for power backup? Ans) There are "super capacitors" that are used for power backup - they are well-organized for short-te

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