The basics of electronics can be watched through the link http://bit.ly/2PPv0mv
A Diode is a semiconductor device with two terminals, typically allowing the flow of current in one direction only.
a thermionic valve having two electrodes (an anode and a cathode).
The three terminals of the FET are known as Gate, Drain, and Source.
It is a voltage controlled device, where the input voltage controls by the output current.
In FET current used to flow between the drain and the source terminal. And this current can be controlled by applying the voltage between the gate and the source terminal.
So this applied voltage generate the electric field within the device and by controlling these electric field we can control the flow of current through the device.
Diodes and its application encapsulate the different characteristics of different type of diodes. Also, define its different biases and how it works.
It provides shortcut method in analyzing Clamper and clipper.
At the end of the powerpoint, there has a review question to answer with answer key provided.
The basics of electronics can be watched through the link http://bit.ly/2PPv0mv
A Diode is a semiconductor device with two terminals, typically allowing the flow of current in one direction only.
a thermionic valve having two electrodes (an anode and a cathode).
The three terminals of the FET are known as Gate, Drain, and Source.
It is a voltage controlled device, where the input voltage controls by the output current.
In FET current used to flow between the drain and the source terminal. And this current can be controlled by applying the voltage between the gate and the source terminal.
So this applied voltage generate the electric field within the device and by controlling these electric field we can control the flow of current through the device.
Diodes and its application encapsulate the different characteristics of different type of diodes. Also, define its different biases and how it works.
It provides shortcut method in analyzing Clamper and clipper.
At the end of the powerpoint, there has a review question to answer with answer key provided.
This presentation gives a lot of information about
Semiconductor Devices.This is presented by Rajesh Kumar Sangani from Rajiv Gandhi University of Knowledge Technologies,Basar Dist
Adilabad,A.P,India.
This presentation gives a lot of information about
Semiconductor Devices.This is presented by Rajesh Kumar Sangani from Rajiv Gandhi University of Knowledge Technologies,Basar Dist
Adilabad,A.P,India.
Electrical current, voltage, resistance, capacitance, and inductance are a few of the basic elements of electronics and radio. Apart from current, voltage, resistance, capacitance, and inductance, there are many other interesting elements to electronic technology. ... Use Electronics Notes to learn electronics online.
Electrical current, voltage, resistance, capacitance, and inductance are a few of the basic elements of electronics and radio. Apart from current, voltage, resistance, capacitance, and inductance, there are many other interesting elements to electronic technology. ... Use Electronics Notes to learn electronics online.
The performance obtainable from a single-stage amplifier is often insufficient for many applications, hence several stages may be combined forming a multistage amplifier. These stages are connected in cascade, i.e. output of the first stage is connected to form input of second stage, whose output becomes input of third stage, and so on.
thank u
Hansraj MEENA
Electrical current, voltage, resistance, capacitance, and inductance are a few of the basic elements of electronics and radio. Apart from current, voltage, resistance, capacitance, and inductance, there are many other interesting elements to electronic technology. ... Use Electronics Notes to learn electronics online.
in this slide you will learn what are classes of amplifiers and what is main difference between all classes of amplifier
and after reading this slide you will be able to explain all clases of amplifier
Coupling of Amplifiers- Direct coupled amplifiertanishashukla147
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This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
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harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
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students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
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Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
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Amplifier.pptx
1. Amplifier
• A circuit that increases the amplitude of the
given input signal is called amplifier.
• A small ac signal fed to the amplifier is
obtained as a larger ac signal of the same
frequency at the output.
2. Classification of Amplifiers
1.Based on the transistor configuration
a)Common Emitter amplifier
b)Common Base amplifier
c)Common Collector amplifier
2.Based on the active device
a)BJT amplifier
b)FET amplifier
3.Based on the Q-point
a)Class A amplifier
b) Class B amplifier
c) Class AB amplifier
d) Class C amplifier
3. 4.Based on the number of stages
a)Single stage amplifier
b)Multistage amplifier
5.Based on the output
a)Voltage amplifier
b)Power amplifier
6.Based on the frequency response
a)Audio frequency amplifier
b)Intermediate frequency amplifier
c)Radio frequency amplifier
7.Based on the bandwidth
a)Narrow band amplifier
b)Wide band amplifier
4. 8.Based on the FET configuration
a)Common Source amplifier
b)Common Drain amplifier
c)Common Gate amplifier
9.Based on the input signal
a)Small signal amplifier
b)Large signal amplifier
10.Based on the coupling
a)Direct coupled amplifier
b)RC coupled amplifier
c) Transformer coupled amplifier
5. Distortion in Amplifiers
• The difference between the output waveform and
input waveform in an amplifier is called
Distortion.
• The condition in which output waveform is not an
exact replica of the input signal waveform is
known as distortion.
• Distortion may be caused either due to the non
linearity of the characteristics of a transistor.
6. Types of Distortion
1.Phase or Delay distortion
2.Frequency distortion
3.Harmonic/Amplitude/Non linear distortion
4.Crossover distortion
7. Frequency response
The plot between the gain and frequency of
an amplifier circuit is known as frequency
response.
The frequency response is divided into 3
regions.
1. Mid frequency region
2. Low frequency region
3. High frequency region
8. Multi-Stage Amplifier
If the voltage (or) power gain obtained from a single stage small
signal amplifier is not sufficient for a practical application, then we
have to use more than one stage of amplification is used to achieve
necessary voltage or power gain such an amplifier is known as
multistage amplifier.
In multi stage amplifier the output of the one stage is fed(coupled) to
the input of next stage such a connection is commonly referred as
cascading.
9. Cascaded amplifier:
• A multi stage amplifier using two or more single stage common emitter amplifier is
called cascaded amplifier.
Cascode amplifier:
• A multi stage amplifier with common emitter as the first stage and common base as
the second stage is called cascode amplifier.
11. Purpose of Coupling device:
To transfer the AC from the output of one
stage to the input of the next stage.
To block the DC to pass from the output of one
stage to the input of next stage, which means
to isolate the DC conditions.
14. Advantages
• Simple circuit
• Cost is low
• Provides the best flat frequency response upto
higher cutoff frequencies.
• It does not require the biasing resistors for the
next stage.
• It can amplify the d.c signal
• Large Bandwidth.
15. Disadvantages
• It can not be used to amplified high frequency
signals
• Temperature may shift the operating point
• Poor frequency response at higher frequency
• The efficiency is less.
19. Advantages
• The cost is low
• They occupied less space
• They have better frequency response
• Its overall amplification is higher than that of
the other couplings.
20. Disadvantages
• The voltage and power gain are low because of
the effective load resistance
• Noise is high
• Impedance matching is poor
21. Applications
• They have excellent audio fidelity over a wide
range of frequency.
• Widely used as voltage amplifiers
• Due to poor impedance matching, RC coupling
rarely used in the final stages.
