This document discusses switched mode power supplies (SMPS). It defines an SMPS as an electrical power supply that incorporates a switching regulator to efficiently convert power from a source to a load. The document outlines the key advantages of SMPS over linear power supplies such as lower weight, smaller size, and higher efficiency. It provides a block diagram of the main components of an SMPS and describes their functions. Examples of common SMPS topologies and their applications in devices like computers, phones, and industrial equipment are also discussed.
Introduction to Power Electronics, Power Diodes, Thyristors and Power Transistors. Different types of Power Converters, Applications of Power Electronics and Peripheral effects.
Introduction to Power Electronics, Power Diodes, Thyristors and Power Transistors. Different types of Power Converters, Applications of Power Electronics and Peripheral effects.
TOTAL HARMONIC DISTORTION POWER METER BY EMBUILT TECHNOLOGIESEmbuilt Technologies
THDPM-1 is THD analyzer which measures upto 51st harmonic.It provides Voltage and Current THD.It shows the net effect on THD due to load.
It also shows following parameters-
Voltage
Current
Watt
Frequency
Power Factor
It is useful for testing of LED Drivers, SMPS, CFL, CHOKES etc.
Electrical failures and malfunctions cause more than 50,900 fires in U.S households each year. Out of these 50,900 fires, around 490 deaths and approximately 1,440 injuries are reported.
Take a look at top 5 causes of electrical accidents in U.S households.
Wireless power transfer is an emerging technology in power electronics. the day to day consumption of petroleum product increases.so a new method for the public service is through electric vehicle. There is wired transferring electric vehicles are available,but they have a disadvantage of safety.Here in wire less power transmission the power transfer through induction. but the main problem is the accurate positioning of vehicle on the charging station. that will be corrected in the next ppt.
SOLID STATE TRANSFORMER - USING FLYBACK CONVERTERAbhin Mohan
FUTURISTIC ELECTRICAL ENGINEERING PROJECT.
A Device that can step up as well as step down coltage and get output as both DC or AC. Total flexibility of Power using DC link by Flyback Coverter.
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From economical point of view designing of transmission line system is very important in the electricity supply system. Extra High Voltage Transmission Lines are best suited for transmission of bulk power.
Design of a generating substation with the description of designing a transformer. Here we show some basic components of a substation. and we also show the parameters and calculation to design a transformer of a specific ratings.
An Improved Single Phase Transformer less Inverter Topology for Cost Effecti...IJMER
In grid connected PV systems, the elimination of isolation transformer introduces common
mode leakage current due to the parasitic capacitance between PV panels and the ground. The common
mode leakage current reduces the efficiency of power conversion stage, affects the quality of grid
current, deteriorate the electric magnetic compatibility and give rise to various safety threats. In order
to eliminate the leakage current, an improved transformer less topology with virtual DC bus concept is
proposed here. By connecting the grid neutral line directly to the negative pole of the DC bus, the stray
capacitance between the PV panels and the ground is bypassed. The topology consists of only five power
switches, two capacitors and the filter section. Therefore, the power electronics cost can be curtailed.
This advanced topology can be modulated with the sinusoidal pulse width modulation (SPWM) to reduce
the output current ripple. The simulation result of the proposed topology using MATLAB/SIMULINK is
presented.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
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.
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Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
2. Contents:-
• General description of Power Supply
• Advantages/Disadvantages of SMPS
• Block diagram of SMPS
• Uses of SMPS
• Applications of SMPS
• Conclusion
3. Power Supply:-
Any device that supplies electric
power to an electric load.
The different types of power
supplies include:
-Battery
-DC power supply
-AC power supply
-Linear regulated power supply
-Switched mode power supply
-Programmable power supply
-Uninterruptible power supply
4. Switched Mode Power Supply:
An electrical power supply that incorporates a switching
regulator to convert electrical power efficiently.
It transfers power from a source, to a load, while
converting voltage and current characteristics.
Voltage regulation is achieved by varying the ratio of on-
to-off time.
5. Advantages of SMPS over Linear Power Supplies:
• 1. Lower weight
• 2. Smaller size
• 3. Higher efficiency
• 4. Lower power dissipation
• 5. Wide ac input voltage range
• 6. Reduced costs
Disadvantages of SMPS:
1. Complexity of the circuit
6. Block diagram of a SMPS
1. Input rectifier stage:
It is used to convert an ac input to dc. A SMPS with dc
input does not require this stage. The rectifier
produces unregulated dc which is then passed through
the filter circuit.
7. • 2. Inverter stage:
– The inverter stage converts DC, whether directly from the input
or from the rectifier stage described above, to AC by running it
through a power oscillator, whose output transformer is very
small with few windings at a frequency of tens or hundreds
of kilohertz.
3. Output transformer:
- If the output required is to be isolated from input, the inverted
AC is used to draw the primary windings of a high frequency
transformer. This converts the voltage up or down to the
required output level on it’s secondary winding.
4. Output rectifier:
- If the dc output is required, the ac output from the transformer is
rectified.
5. Regulation:
- Feedback circuit monitors the output voltage and compares it
with the reference voltage.
8. Factors to be considered while selecting a topology
for a particular application:-
• 1. Is input-to-output dielectric isolation required for the application?
• 2. Are multiple outputs required?
• 3. Does the prospective topology place a reasonable voltage stress
across the voltage semiconductors?
• 4. Does the prospective topology place a reasonable current stress
across the voltage semiconductors?
• 5. How much of the input voltage is placed across the primary
transformer winding or inductor?
• Typical maximum output power available from each topology:
Converter Topology Maximum output power
Flyback 200W
Forward 300W
Push-pull 500W
Half bridge 1000W
Full bridge >1000W
9. Use of non-isolated topologies:
• Non isolated topologies are the simplest, with the three basic types using a
single inductor for energy storage.
Type Power(W) Relative
Cost
Energy
Storage
Voltage Relation Features
Buck 0-1000 1.0 Single
inductor
0 ≤ Out ≤ In
V2=D.V1
Continuous
current at
output
Boost 0-150 1.0 Single
inductor
Out ≥ In
V2=V1.[(1)/(1-D)]
Continuous
current at
input
Buck-
boost
0-150 1.0 Single
inductor
Out ≤ 0
V2= -V1[(D)/(1-D)]
No
continuous
current
10. Applications of SMPS:-
• 1. Machine tool industries
• 2. Security Systems
• (Closed circuit cameras)
• 3. Support supplies with PLC’s
• 4. Personal Computers
• 5. Mobile Phone chargers
12. Conclusion:
• The most common SMPS topologies: flyback, push-pull,
half bridge and full bridge converters have been outlined.
• Each has it’s own particular operating characteristics and
advantages, which makes it suitable to particular
applications.
• Some of the most common applications of SMPS have
been discussed.
References:
www.wikipedia.org
www.howstuffworks.com
Philips semiconductors manual
Lambda semiconductors manual
Motorola semiconductors manual
Microchip manual
13. THE BLUE STREAKS OF LIGHT
MEMBERS OF THE GROUP:
• Priyanka.Potadar
• Neeraj.Shrigiri
• Namita.Rajput
• Shrinidhi.Yeri
• Ruthika.Patil
• Subhan.Patel