An oscillator is an electronic circuit that produces repetitive waveforms without an external input signal. It converts DC power from a source into AC power in a load. There are two main types of oscillators - sinusoidal oscillators that produce sinusoidal waveforms and relaxation oscillators that produce non-sinusoidal waveforms like square or sawtooth waves. Crystal oscillators use a quartz crystal as the frequency-determining element, giving them extremely high frequency stability. They are commonly used where high accuracy is required, such as in communication systems, laboratory equipment, and computers.
Colpitts Oscillator - Working and Applicationselprocus
We provide you Project Colpitts Oscillator - Working and Applications.You can choose the best of your choice and interest from the list of topics we suggested. All new project ideas that are appearing focuses to improve the knowledge of Engineering students.
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Colpitts Oscillator - Working and Applicationselprocus
We provide you Project Colpitts Oscillator - Working and Applications.You can choose the best of your choice and interest from the list of topics we suggested. All new project ideas that are appearing focuses to improve the knowledge of Engineering students.
https://www.elprocus.com
Visit our page to get more ideas on Project Report Format for Final Year Engineering Students these ideas developed by professionals.
Elprocus provides free verified electronic projects kits around the world with abstracts, circuit diagrams, and free electronic software. We provide guidance manual for Do It Yourself Kits (DIY) with the modules at best price along with free shipping.
Oscillator is a mechanical or electronic device works on the principle of oscillation i.e. a periodic fluctuation between two things based on changes in energy. It is of two types; linear oscillators and non linear oscillators. The wave shape and amplitude are determined by the design of the oscillator circuit and choice of component values.
Oscillator is a mechanical or electronic device works on the principle of oscillation i.e. a periodic fluctuation between two things based on changes in energy. It is of two types; linear or Harmonic oscillator and Relaxation or non linear oscillator.Oscillator is a mechanical or electronic device works on the principle of oscillation i.e. a periodic fluctuation between two things based on changes in energy.
Electronic Oscillator ,classification ,linear and non linear ,circuit description , tank circuit ,working and operation , frequency of oscllation and Applications
An oscillator is an amplifier which produces an output signal of significant high power whose waveform is similar to the input signal. It is an electronic circuit which generates an ac output signal without requiring any external input signal.
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.
Oscillator is a mechanical or electronic device works on the principle of oscillation i.e. a periodic fluctuation between two things based on changes in energy. It is of two types; linear oscillators and non linear oscillators. The wave shape and amplitude are determined by the design of the oscillator circuit and choice of component values.
Oscillator is a mechanical or electronic device works on the principle of oscillation i.e. a periodic fluctuation between two things based on changes in energy. It is of two types; linear or Harmonic oscillator and Relaxation or non linear oscillator.Oscillator is a mechanical or electronic device works on the principle of oscillation i.e. a periodic fluctuation between two things based on changes in energy.
Electronic Oscillator ,classification ,linear and non linear ,circuit description , tank circuit ,working and operation , frequency of oscllation and Applications
An oscillator is an amplifier which produces an output signal of significant high power whose waveform is similar to the input signal. It is an electronic circuit which generates an ac output signal without requiring any external input signal.
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.
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.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
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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.
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.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
2. An oscillator is an electronic circuit that gives an output
without any input signal.
It comprises active and passive circuit elements
and sinusoidal produces repetitive waveforms at the output
without the application of a direct external input signal to the
circuit.
It converts the dc power from the source to ac
power in the load. A rectifier circuit converts ac to dc power,
but an oscillator converts dc noise signal/power to its ac
equivalent.
The general form of a harmonic oscillator is an
electronic amplifier with the output attached to a narrow-band
electronic filter and the output of the filter attached to the
input of the amplifier.
INTRODUCTION:
4. Oscillators are classified based on the type of the output
waveform.
If the generated waveform is sinusoidal or close to sinusoidal (with a
certain frequency) then the oscillator is said to be a Sinusoidal Oscillator.
If the output waveform is non-sinusoidal, which refers to
square/saw-tooth waveforms, the oscillator is said to be a
Relaxation Oscillator.
An oscillator has a positive feedback with the loop gain infinite.
CLASSIFICATIONS OF OSCILLATORS:
6. The classification of various oscillators is shown in the table
CLASSIFICATIONS OF
OSCILLATORS:
7. Oscillators are a common element of almost all electronic
circuits. They are used in various applications, and their use makes it
possible for circuits and subsystems to perform numerous useful functions.
In oscillator circuits, oscillation usually builds up from zero
when power is first applied under linear circuit operation.
The oscillator’s amplitude is kept from building up by limiting
the amplifier saturation and various non-linear effects.
Oscillator design and simulation is a complicated process. It is
also extremely important and crucial to design a good and stable oscillator.
Oscillators are commonly used in communication circuits. All
the communication circuits for different modulation techniques—AM, FM,
PM—the use of an oscillator is must.
Oscillators are used as stable frequency sources in a variety of
electronic applications. (Quartz watches)
Oscillator circuits are used in computer peripherals, counters,
timers, calculators, phase-locked loops, digital multi-metres, oscilloscopes,
and numerous other applications.
CHARACTERISTICS OF
OSCILLATORS:
8. Crystal oscillator is most commonly used oscillator with high-frequency
stability. They are used for laboratory experiments, communication circuits and biomedical
instruments. They are usually fixed frequency oscillators where stability and accuracy are the
primary considerations.
In order to design a stable and accurate LC oscillator for the upper HF and
higher frequencies it is absolutely necessary to have a crystal control; hence, the reason for
crystal oscillators.
Crystal oscillators are oscillators where the primary frequency determining
element is a quartz crystal. Because of the inherent characteristics of the quartz crystal the
crystal oscillator may be held to extreme accuracy of frequency stability. Temperature
compensation may be applied to crystal oscillators to improve thermal stability of the crystal
oscillator.
The crystal size and cut determine the values of L, C, R and C'. The resistance R
is the friction of the vibrating crystal, capacitance C is the compliance, and inductance L is
the equivalent mass. The capacitance C' is the electrostatic capacitance between the mounted
pair of electrodes with the crystal as the dielectric.
CRYSTAL OSCILLATOR:
12. In the circuits shown, the resistors R1
and R2
form the voltage divider network
while the emitter resistor RE
stabilizes the circuit. Further, CE
acts as an AC bypass
capacitor while the coupling capacitor CC
is used to block DC signal propagation
between the collector and the base terminals.
Next, the capacitors C1
and C2
form the capacitive voltage divider network . In
addition, there is also a Radio Frequency Coil (RFC) in the circuits which offers
dual advantage as it provides even the DC bias as well as frees the circuit-output
from being affected by the AC signal .
On supplying the power to the oscillator, the amplitude of the oscillations in the
circuit increases until a point is reached wherein the nonlinearities in the amplifier
reduce the loop gain to unity. Next, on reaching the steady-state, the crystal in the
feedback loop highly influences the frequency of the operating circuit. Further,
here, the frequency will self-adjust so as to facilitate the crystal to present a
reactance to the circuit such that the Barkhausen phase requirement is fulfilled.
The typical operating range of the crystal oscillators is from 40 KHz to 100 MHz
Operation of Crystal Oscillator:
13. Advantages of Crystal Oscillator:
•The crystal oscillator has very low frequency drift due to change
in temperature and other parameters.
•The crystal oscillator Q is very high.
•It has Automatic amplitude control.
•It has very high frequency stability.
•The crystal oscillator is possible to obtain very high precise
and stable frequency of oscillators.
14. Disadvantages of crystal oscillator:
•Crystals of low fundamental frequencies are not easily
available.
•These are suitable for high frequency application.
Applications of crystal oscillator:
•The crystal oscillators are used in radio and TV
transmitters.
•It is used as a crystal clock in microprocessors.
•It is used in the frequency synthesizers.
•It is used in special types of receivers.