Voltage multipliers are AC-to-DC power conversion devices, comprised of diodes and capacitors, that produce a high potential DC voltage from a lower voltage AC source. Multipliers are made up of multiple stages. Each stage is comprised of one diode and one capacitor.
The presentation consists of the detailed explanation on the topic of Converters, specifically on the rectifiers, different types of rectifiers ( Half-wave, full-wave and bridge ) configuration. The advantages and disadvantages of rectifiers and their applications
The three types of rectifiers in just 18 slides. Learn and enjoy the concepts. This PowerPoint presentation not only tells about the working and principles of rectifiers but also determines the disadvantages and advantages of different rectifiers. This PowerPoint presentation also has circuit diagrams that suit your necessities. This PPT can be written as an answer for a long type of question too.
Voltage multipliers are AC-to-DC power conversion devices, comprised of diodes and capacitors, that produce a high potential DC voltage from a lower voltage AC source. Multipliers are made up of multiple stages. Each stage is comprised of one diode and one capacitor.
The presentation consists of the detailed explanation on the topic of Converters, specifically on the rectifiers, different types of rectifiers ( Half-wave, full-wave and bridge ) configuration. The advantages and disadvantages of rectifiers and their applications
The three types of rectifiers in just 18 slides. Learn and enjoy the concepts. This PowerPoint presentation not only tells about the working and principles of rectifiers but also determines the disadvantages and advantages of different rectifiers. This PowerPoint presentation also has circuit diagrams that suit your necessities. This PPT can be written as an answer for a long type of question too.
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.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
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.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
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About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
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.
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.
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.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
1. Analog & Digital Electronics
Course No: PH-218
Lec-4: Clampers, Voltage multipliers, & Zener diode
Course Instructors:
Dr. A. P. VAJPEYI
Department of Physics,
Indian Institute of Technology Guwahati, India 1
2. Clampers:
Clamping is a process of introducing a dc level into a signal.
2
Clamper circuit consist of diode and capacitor that shifts the input waveform to
different dc level without changing the appearance of the applied waveform.
When the diode is forward biased, it will
conduct and charge the capacitor. The output
voltage across the diode is zero (0.7V).
The capacitor is charged to peak input
voltage quickly because of small time
constant of the circuit.
3. During the –ve cycle when diode is reverse bias, the diode becomes to its
off state. In this case, the output voltage equals to the sum of the input
voltage and the voltage across the terminals of the capacitor which have the
same polarity with each other
During positive half cycle
3
During negative half cycle
4. During 0 to t1, the input voltage is negative, diode is forward biased and
conducts so V is zero and the capacitor is charged to –10 V with the
4
conducts so Vo is zero and the capacitor is charged to –10 V with the
polarity as shown.
During t1 to t2, diode becomes reverse biased and open circuit and at t2,
when Vi is 10V total voltage change is 20V.
5. Applying KVL: Vin+Vc+Vsupply =0
-10V+Vc+5V=0 ; Vc = 5V
Diode will be forward biased and Capacitor will be charged by 15V.
During positive half cycle:
During negative half cycle:
Diode will be reverse biased and diode will be open circuit.
Applying KVL: : Vin+Vc+Vsupply =0
10V+5-V =0 ; V = 15V
5
10V+5-Vo=0 ; Vo = 15V
6. Voltage Multipliers:
Voltage multipliers are the circuit which provide a dc output that is
multiple of the peak input ac voltage.
Voltage doubler will provide a dc output that is twice the peak input ac
voltage and voltage tripler will provide a dc output that is three times the
peak input ac voltage.
The basic idea in voltage multiplier circuit is to charge each capacitor to
the peak input ac voltage and to arrange the capacitor so that their stored
voltages will add.
6
voltages will add.
Voltage doubler:
7. During the positive half cycle, diode D1 is forward biased and diode D2 is
reverse biased, that will charge capacitor C1 to peak value of input voltage.
During the negative half cycle, diode D2 is forward biased and diode D1 is
reverse biased, that will charge capacitor C2 to the twice the peak value of
input voltage because capacitor C1 ( charged to Vp) and input voltage (Vp )
now act as series aiding voltage source.
When input voltage returns to its original polarity, diode D2 is again reverse
biased (off), and then the capacitor C will be discharged through the load R
Voltage doubler:
7
biased (off), and then the capacitor C2 will be discharged through the load RL
The time constant (RLC2) is so adjusted that C2 has little time to loose any
of its charge before the input polarity reverses again.
During the negative half cycle, diode D2 is turned on , capacitor C2 will be
recharged again until voltage across it is again equal to 2Vp.
9. Zener diode:
A zener diode is a special type of diode that is designed to operate in the
reverse breakdown region.
A properly doped (heavily doped) junction diode which has a sharp
breakdown voltage is known as zener diode.
Heavy doping causes a very thin depletion layer which results in sharp
breakdown voltage.
9
breakdown voltage.
A zener diode is always connected in reverse bias mode.
The use of a sufficiently strong electric field at the junction can cause a
direct rupture of the bond. If the electric field exerts a strong force on a bound
electron, the electron can be torn from the covalent bond thus causing the
number of electron-hole pair combinations to multiply. This mechanism is
called Zener breakdown.
10. Zener diode as a voltage regulator:
The zener diode operated in the breakdown
region have a constant voltage regardless the
value of the current through the device, that
allows zener diode to be used as a voltage
regulator.
Voltage stabilizer circuit that maintain a
constant voltage across the load when the
10
source voltage or the load current vary,
shown below.
11. Zener diode as a voltage regulator:
First calculate the thevenin voltage
across the zener diode.
Zener will work in the breakdown region
only if the Thevenin voltage across zener is
more than VZ
11
If zener is operating in breakdown region, the current through RS is given by
more than VZ
IL is load current and Is is total current. Is = IL + Iz
12. Ripple factor of diode rectifier:
The effectiveness of a rectifier depends upon the magnitude of ac
component in the output; smaller the ac component, the more effective is the
rectifier.
Ripple factor is a measure of effectiveness of a rectifier circuit and
defined as a ratio of rms value of ac component to the dc component in
the rectifier output.
ac
I
or
Ripplefact =
12
dc
I
or
Ripplefact =
1
2
2
−
=
dc
rms
dc
ac
I
I
I
I
2
2
ac
dc
rms I
I
I +
=
13. Ripple factor of diode rectifier:
For half wave rectifier:
Ripple factor = 1.21
For full wave rectifier:
Π
= m
dc
I
I
m
I
I =
2
m
rms
I
I =
= m
I
I
2
Ripple factor = 0.48
2
m
rms
I
I =
Π
= m
dc
I
I
2