Field Effect Transistor is a transistor that is voltage controlled devices. It has higher input impedance and less sensitive to temperature variations.
FIELD EFFECT TRANSISTERS (FET)
Types of Field Effect Transistors
i) Junction field effect transistor (JFET)
(ii) Metal oxide semiconductor field effect transistor (MOSFET)
Field Effect Transistor is a transistor that is voltage controlled devices. It has higher input impedance and less sensitive to temperature variations.
FIELD EFFECT TRANSISTERS (FET)
Types of Field Effect Transistors
i) Junction field effect transistor (JFET)
(ii) Metal oxide semiconductor field effect transistor (MOSFET)
Field-effect transistor amplifiers provide an excellent voltage gain with the added feature of high input impedance. They are also low-power-consumption configurations with good frequency range and minimal size and weight.
JFETs, depletion MOSFETs, and MESFETs can be used to design amplifiers having similar voltage gains.
The depletion MOSFET (MESFET) circuit, however, has a much higher input impedance than a similar JFET configuration.
it covers topics Introduction
Classification of Logic Families
Important point
Level of Integration
Specification of Digital ICs
TTL Circuit
TTL NAND Gates
MOS/CMOS Circuits
CMOS NAND Gate
ECL Circuit
Comparison
Numbers of Digital ICs
100 watt inverter using IC CD4047 and MOSFET IRF540
CD 4047 is a low power CMOS astable/monostable multivibrator IC. Here it is wired as an astable multivibrator producing two pulse trains of 0.01s which are 180 degrees out of phase at the pins 10 and 11 of the IC. Pin 10 is connected to the gate of Q1 and pin 11 is connected to the gate of Q2. Resistors R3 and R4 prevents the loading of the IC by the respective MOSFETs. When pin 10 is high Q1 conducts and current flows through the upper half of the transformer primary which accounts for the positive half of the output AC voltage. When pin 11 is high Q2 conducts and current flows through the lower half of the transformer primary in opposite direction and it accounts for the negative half of the output AC voltage.
Field-effect transistor amplifiers provide an excellent voltage gain with the added feature of high input impedance. They are also low-power-consumption configurations with good frequency range and minimal size and weight.
JFETs, depletion MOSFETs, and MESFETs can be used to design amplifiers having similar voltage gains.
The depletion MOSFET (MESFET) circuit, however, has a much higher input impedance than a similar JFET configuration.
it covers topics Introduction
Classification of Logic Families
Important point
Level of Integration
Specification of Digital ICs
TTL Circuit
TTL NAND Gates
MOS/CMOS Circuits
CMOS NAND Gate
ECL Circuit
Comparison
Numbers of Digital ICs
100 watt inverter using IC CD4047 and MOSFET IRF540
CD 4047 is a low power CMOS astable/monostable multivibrator IC. Here it is wired as an astable multivibrator producing two pulse trains of 0.01s which are 180 degrees out of phase at the pins 10 and 11 of the IC. Pin 10 is connected to the gate of Q1 and pin 11 is connected to the gate of Q2. Resistors R3 and R4 prevents the loading of the IC by the respective MOSFETs. When pin 10 is high Q1 conducts and current flows through the upper half of the transformer primary which accounts for the positive half of the output AC voltage. When pin 11 is high Q2 conducts and current flows through the lower half of the transformer primary in opposite direction and it accounts for the negative half of the output AC voltage.
Unit - 3 Switching Characteristics of Diodes and Transistors.pdfRGPV De Bunkers
The "Electronic Devices & Circuits - Study Material" is a comprehensive and detailed PDF document designed to provide students of the Bachelor of Engineering in Computer Science program at Rajiv Gandhi Proudyogiki Vishwavidyalaya Bhopal with a comprehensive understanding of the fundamental concepts related to electronic devices and circuits. This study material covers the topics taught in Semester 3 of the program, focusing on the subject of Electronic Devices & Circuits.
Content Overview:
Switching Characteristics of Diode and Transistor
Understanding the Turn ON and Turn OFF Time of Diodes and Transistors.
Exploring the importance of Switching Characteristics in digital circuits and switching applications.
Analyzing how Diodes and Transistors transition between different states during switching.
Reverse Recovery Time of Diode
Investigating the phenomenon of Reverse Recovery Time in diodes.
Examining the implications of Reverse Recovery Time in high-frequency rectifiers and switching circuits.
Understanding how charge carriers affect the transition from conducting to non-conducting state in diodes.
Transistor as a Switch
Utilizing transistors as electronic switches in various applications.
Exploring the operation of transistors in the ON (saturation) and OFF (cutoff) states.
Discussing the applications of transistor switches in digital logic circuits, amplifiers, and power control.
Multivibrators
Understanding the operation and applications of Bistable, Monostable, and Astable Multivibrators.
Analyzing how Bistable Multivibrators can be used as memory elements and in sequential logic circuits.
Exploring the application of Monostable Multivibrators in time delay circuits and pulse generation.
Examining the use of Astable Multivibrators as free-running oscillators in clock generation and tone generation.
Clippers and Clampers
Studying the working principles of Clippers, including positive and negative clippers.
Understanding how Clippers are used in waveform shaping and noise elimination.
Analyzing the operation and applications of Clampers in restoring AC-coupled signals to a specific voltage level.
Differential Amplifier and CMRR Calculation
Exploring the significance of Differential Amplifiers in communication and instrumentation applications.
Calculating the Differential Gain and Common Mode Gain using h-parameters.
Understanding the importance of Common Mode Rejection Ratio (CMRR) in noise rejection.
Benefits:
Provides in-depth explanations of critical topics related to Electronic Devices & Circuits.
Equips students with the knowledge required to design and analyze electronic circuits.
Covers essential concepts for digital circuit design and signal processing applications.
Supports students in preparing for examinations and assignments related t
Review of Step down Converter with Efficient ZVS OperationIJRST Journal
This paper presents the review of step down converter with efficient ZVS operation. The designed buck converter uses ZCS technique and the function is realized so that the power form is converted from 12V DC 5V DC (1A). A detailed analysis of zero current switching buck converters is performed and a mathematical analysis of the mode of operation is also presented. In order to reduce the switching losses in associated with conventional converters; resonant inductor and resonant capacitor (LC resonant circuit) is applied which helps to turn on-off the switch at zero current. The dc-dc buck converter receives the energy from the input source, when the switch is turned-on. The buck–buck converters have characteristics that warrant a more detailed study. The buck converters under discontinuous conduction mode /continuous conduction mode boundary.
Power point presentation on logical families.
A good presentation cover all topics.
For any other type of ppt's or pdf's to be created on demand contact -dhawalm8@gmail.com
mob. no-7023419969
Different types of transistors and their functionselprocus
This article discusses about types of transistors and basic applications.Common types of transistor are BJT, FET, HBT, Darlington, Schottky, JFET, Diffusion
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Online aptitude test management system project report.pdfKamal Acharya
The purpose of on-line aptitude test system is to take online test in an efficient manner and no time wasting for checking the paper. The main objective of on-line aptitude test system is to efficiently evaluate the candidate thoroughly through a fully automated system that not only saves lot of time but also gives fast results. For students they give papers according to their convenience and time and there is no need of using extra thing like paper, pen etc. This can be used in educational institutions as well as in corporate world. Can be used anywhere any time as it is a web based application (user Location doesn’t matter). No restriction that examiner has to be present when the candidate takes the test.
Every time when lecturers/professors need to conduct examinations they have to sit down think about the questions and then create a whole new set of questions for each and every exam. In some cases the professor may want to give an open book online exam that is the student can take the exam any time anywhere, but the student might have to answer the questions in a limited time period. The professor may want to change the sequence of questions for every student. The problem that a student has is whenever a date for the exam is declared the student has to take it and there is no way he can take it at some other time. This project will create an interface for the examiner to create and store questions in a repository. It will also create an interface for the student to take examinations at his convenience and the questions and/or exams may be timed. Thereby creating an application which can be used by examiners and examinee’s simultaneously.
Examination System is very useful for Teachers/Professors. As in the teaching profession, you are responsible for writing question papers. In the conventional method, you write the question paper on paper, keep question papers separate from answers and all this information you have to keep in a locker to avoid unauthorized access. Using the Examination System you can create a question paper and everything will be written to a single exam file in encrypted format. You can set the General and Administrator password to avoid unauthorized access to your question paper. Every time you start the examination, the program shuffles all the questions and selects them randomly from the database, which reduces the chances of memorizing the questions.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Water billing management system project report.pdfKamal Acharya
Our project entitled “Water Billing Management System” aims is to generate Water bill with all the charges and penalty. Manual system that is employed is extremely laborious and quite inadequate. It only makes the process more difficult and hard.
The aim of our project is to develop a system that is meant to partially computerize the work performed in the Water Board like generating monthly Water bill, record of consuming unit of water, store record of the customer and previous unpaid record.
We used HTML/PHP as front end and MYSQL as back end for developing our project. HTML is primarily a visual design environment. We can create a android application by designing the form and that make up the user interface. Adding android application code to the form and the objects such as buttons and text boxes on them and adding any required support code in additional modular.
MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software. It is a stable ,reliable and the powerful solution with the advanced features and advantages which are as follows: Data Security.MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
An Approach to Detecting Writing Styles Based on Clustering Techniquesambekarshweta25
An Approach to Detecting Writing Styles Based on Clustering Techniques
Authors:
-Devkinandan Jagtap
-Shweta Ambekar
-Harshit Singh
-Nakul Sharma (Assistant Professor)
Institution:
VIIT Pune, India
Abstract:
This paper proposes a system to differentiate between human-generated and AI-generated texts using stylometric analysis. The system analyzes text files and classifies writing styles by employing various clustering algorithms, such as k-means, k-means++, hierarchical, and DBSCAN. The effectiveness of these algorithms is measured using silhouette scores. The system successfully identifies distinct writing styles within documents, demonstrating its potential for plagiarism detection.
Introduction:
Stylometry, the study of linguistic and structural features in texts, is used for tasks like plagiarism detection, genre separation, and author verification. This paper leverages stylometric analysis to identify different writing styles and improve plagiarism detection methods.
Methodology:
The system includes data collection, preprocessing, feature extraction, dimensional reduction, machine learning models for clustering, and performance comparison using silhouette scores. Feature extraction focuses on lexical features, vocabulary richness, and readability scores. The study uses a small dataset of texts from various authors and employs algorithms like k-means, k-means++, hierarchical clustering, and DBSCAN for clustering.
Results:
Experiments show that the system effectively identifies writing styles, with silhouette scores indicating reasonable to strong clustering when k=2. As the number of clusters increases, the silhouette scores decrease, indicating a drop in accuracy. K-means and k-means++ perform similarly, while hierarchical clustering is less optimized.
Conclusion and Future Work:
The system works well for distinguishing writing styles with two clusters but becomes less accurate as the number of clusters increases. Future research could focus on adding more parameters and optimizing the methodology to improve accuracy with higher cluster values. This system can enhance existing plagiarism detection tools, especially in academic settings.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
6th International Conference on Machine Learning & Applications (CMLA 2024)
The bistable multivibrator hani prasetyo_universitastidar
1. The Bistable Multivibrator
Disusun oleh : Hani Prasetyo
1410502060
Teknik Mesin S1
Nama dosen : R. Suryoto Edy Raharjo, S.T., M.Eng.
FAKULTAS TEKNIK
UNIVERSITAS TIDAR
2015
3. KATA PENGANTAR
Puji Syukur kehadirat ALLAH SWT, karena atas perkenanNYA tugas tentang “Bistable
Multivibrator“ dapat diselesaikan.
Tujuan dari pembuatan laporan ini adalah untuk memberikan gambaran mengenai pengertian
bistable multivibrator,serta macam-macam multivibrator
Harapan saya semoga silde ini membantu menambah pengetahuan dan pengalaman bagi para
pembaca, sehingga saya dapat memperbaiki bentuk maupun isi slide ini sehingga kedepannya
dapat lebih baik.
Slide ini saya akui masih banyak kekurangan karena pengalaman yang saya miliki sangat
kurang. Oleh karena itu saya harapkan kepada para pembaca untuk memberikan masukan-
masukan yang bersifat membangun untuk kesempurnaan slide ini.
4. TheBistableMultivibrator
The Bistable Multivibrator is another type of two state device similar to the Monostable
Multivibrator we looked at in the previous tutorial but the difference this time is that BOTH states
are stable. Bistable Multivibrators have TWO stable states (hence the name: “Bi” meaning two)
and maintain a given output state indefinitely unless an external trigger is applied forcing it to
change state.
The bistable multivibrator can be switched over from one stable state to the other by the application of
an external trigger pulse thus, it requires two external trigger pulses before it returns back to its original
state. As bistable multivibrators have two stable states they are more commonly known
asLatches and Flip-flops for use in sequential type circuits.
5. The discrete Bistable Multivibrator is a two state non-regenerative device constructed from two cross-
coupled transistors operating as “ON-OFF” Transistor Switches. In each of the two states, one of the
transistors is cut-off while the other transistor is in saturation, this means that the bistable circuit is
capable of remaining indefinitely in either stable state.
To change the bistable over from one state to the other, the bistable circuit requires a suitable trigger
pulse and to go through a full cycle, two triggering pulses, one for each stage are required. Its more
common name or term of “flip-flop” relates to the actual operation of the device, as it “flips” into one
logic state, remains there and then changes or “flops” back into its first original state. Consider the
circuit below.
6. Bistable Multivibrator Circuit
The Bistable Multivibrator circuit above is stable in both states, either with one transistor “OFF” and
the other “ON” or with the first transistor “ON” and the second “OFF”. Lets suppose that the switch is in
the left position, position “A”. The base of transistor TR1 will be grounded and in its cut-off region
producing an output at Q. That would mean that transistor TR2 is “ON” as its base is connected to Vcc
through the series combination of resistors R1 and R2. As transistor TR2 is “ON” there will be zero
output at Q, the opposite or inverse of Q.
7. If the switch is now move to the right, position “B”, transistor TR2 will switch “OFF” and transistor TR1will
switch “ON” through the combination of resistors R3 and R4 resulting in an output at Q and zero output
at Q the reverse of above. Then we can say that one stable state exists when transistor TR1 is “ON”
and TR2 is “OFF”, switch position “A”, and another stable state exists when transistor TR1 is “OFF”
and TR2 is “ON”, switch position “B”.
Then unlike the monostable multivibrator whose output is dependent upon the RC time constant of the
feedback components used, the bistable multivibrators output is dependent upon the application of two
individual trigger pulses, switch position “A” or position “B”.
So Bistable Multivibrators can produce a very short output pulse or a much longer rectangular shaped
output whose leading edge rises in time with the externally applied trigger pulse and whose trailing edge
is dependent upon a second trigger pulse as shown below.
8. Bistable Multivibrator Waveform
Manually switching between the two stable states may produce a bistable multivibrator circuit but is not
very practical. One way of toggling between the two states using just one single trigger pulse is shown
below.
10. Switching between the two states is achieved by applying a single trigger pulse which in turn will cause
the “ON” transistor to turn “OFF” and the “OFF” transistor to turn “ON” on the negative half of the trigger
pulse. The circuit will switch sequentially by applying a pulse to each base in turn and this is achieved
from a single input trigger pulse using a biased diodes as a steering circuit.
Then on the application of a first negative pulse switches the state of each transistor and the application
of a second pulse negative pulse resets the transistors back to their original state acting as a divide-by-
two counter. Equally, we could remove the diodes, capacitors and feedback resistors and apply
individual negative trigger pulses directly to the transistor bases.
11. Bistable Multivibrators have many applications producing a set-reset, SR flip-flop circuit for use in
counting circuits, or as a one-bit memory storage device in a computer. Other applications of bistable
flip-flops include frequency dividers because the output pulses have a frequency that are exactly one
half ( ƒ/2) that of thetrigger input pulsefrequencydue tothem changingstatefrom asingle input pulse.
In other words the circuit produces Frequency Division as it now divides the input frequency by a
factor of two (an octave).
12. TTL/CMOS Bistable Multivibrators
As well as producing a bistable multivibrator from individual discrete components such as transistors,
we can also construct bistable circuits using commonly available integrated circuits. The following circuit
shows how a basic bistable multivibrator circuit can be constructed using just two 2-inputLogic “NAND”
Gates.
13. NAND Gate Bistable Multivibrator
The circuit above shows us how we can use two NAND gates connected together to form a basic
bistable multivibrator. This type of bistable circuit is also known as a “Bistable Flip-flop”. The manually
controlled bistable multivibrator is activated by the single-pole double-throw switch (SPDT) to produce
a logic “1” or a logic “0” signal at the output.
You may have noticed that this circuit looks a little familiar, and you would be right!. This type of bistable
switching circuit is more commonly called a SR NAND Gate Flip-flop being almost identical to the one
we looked at back in the Sequential Logic tutorials. In that particular tutorial we saw that this type
of NAND gate bistable makes an excellent “switch debouncing” circuit allowing only one switching action
to control its output.
In the next tutorial about Multivibrators, we will look at one that has NO stable states because it is
continually switching over from one stable state to the other. This type of multivibrator circuit is called
an Astable Multivibrator also known by their more common name of “fee-running oscillator”.