multi devices universal charger
•Download as PPTX, PDF•
0 likes•37 views
This document summarizes a universal programmable battery charger project prepared by 5 students under the guidance of an assistant professor. The universal charger can charge multiple devices at different voltages using a buck boost converter topology. It allows users to choose different charging options and create custom charge profiles through a microcontroller interface. The document outlines the hardware components, voltage control mechanism, stability analysis, charging performance tests, and efficiency of over 90% compared to typical chargers that are only 80% efficient. In conclusion, the universal charger allows charging multiple devices to reduce costs compared to separate chargers.
Report
Share
Report
Share
Recommended
Design of Speed and Current Controller for Two Quadrant DC Motor Drive
This document discusses the design of a current controller for a two-quadrant DC motor drive system using a model order reduction technique. It first presents the literature on various order reduction methods. It then derives the transfer functions of the DC motor, converter, current and speed controllers. Using the symmetric optimum method, it designs the current controller as a second-order system and the speed controller as a first-order system, reduced from their original higher orders. Simulation results show the performance of the reduced order system matches the conventional system. The document concludes the motor drive control is designed and simulated successfully using the symmetric optimum method.
Kulekhani-1 hydropower project, Nepal
The document summarizes a field trip to the Kulekhani-1 Hydropower Station located in Makawanpur, Nepal. Some key details:
- Construction began in 1977, generation started in 1982 with an installed capacity of 60 MW
- It is a reservoir-type plant that operates during peak hours and helps improve voltage stability and prevents blackouts.
- The plant has civil works like tunnels, surge shafts and an electro-mechanical system including a governor, excitation system, transformers and switchyard to regulate power distribution.
- During blackouts, its backup diesel generators energize the transmission line and help restart other power plants via a "black start" process.
DRIVERS
This document discusses drives used for heating, ventilation and air conditioning systems. It compares AC and DC drives, describing their advantages and disadvantages. AC drives have lower motor costs but higher power converter costs compared to DC drives. Microprocessor control is discussed for both AC and DC drives. Common industrial applications of microprocessor controlled AC drives are also listed, such as for fans, pumps and compressors. The document concludes with advantages of microprocessor controlled drives like better process control and reliability.
WCR Kota junction internship ppt
This is a brief presentation of my summer internship. I completed it from Kota Railway (WCR) ..i hope it will help some of you out there
Variable speed drive in pumping system
Variable speed drives (VSDs) can significantly reduce pumping system energy consumption through more efficient motor control. VSDs allow pumping system motors to vary their speed based on system demands, lowering energy usage compared to fixed speed motors. There are mechanical and electrical methods for varying motor speed, with electrical VSDs being the most common. VSDs provide advantages like reduced power requirements, increased efficiency, lower wear on pumps, and longer equipment life. However, care must be taken to avoid potential vibration issues at certain speeds. Overall, implementing VSDs in pumping systems can help address energy costs and consumption worldwide.
Electrical Drives and Controls
1. The document discusses electric drives and their components. Electric drives use electric motors as prime movers and include a power source, power modulator, motor, control unit, and sensing unit.
2. Power modulators can be converters, variable impedance circuits, or switching circuits. Converters provide adjustable voltage/current/frequency to control motor speed and torque. Variable impedance circuits and switching circuits are used to control motor parameters.
3. Electric drives are classified as individual drives, group drives, or multimotor drives depending on how many motors are used to drive different loads. Individual drives use one motor for all loads while group drives use one motor connected to multiple loads through pulleys. Multimotor
Phase Lock Loop control of dc drive
This document discusses using a phase-locked loop (PLL) to control the speed of a DC motor. A PLL synchronizes the frequency of a voltage-controlled oscillator (VCO) to the frequency of an input reference signal. For motor speed control, the VCO is replaced by the combination of the DC motor and speed encoder, which generates a feedback signal proportional to motor speed. A phase detector compares this feedback signal to the reference frequency, and the output filters and converts the phase difference into control pulses for the motor driver. This allows the motor speed to be precisely synchronized to a multiple of the reference frequency, enabling accurate digital speed control.
DC drives
This document discusses control of DC drive systems. It describes different types of DC motor configurations including series and separately excited motors. It also discusses single and three phase DC drives using converters. DC chopper drives are described as a method to control DC motor speed by adjusting the chopper voltage and duty cycle. Phase locked loop control techniques are also mentioned as a way to precisely control DC motor speed. Advantages and applications of DC drive systems are listed.
Recommended
Design of Speed and Current Controller for Two Quadrant DC Motor Drive
This document discusses the design of a current controller for a two-quadrant DC motor drive system using a model order reduction technique. It first presents the literature on various order reduction methods. It then derives the transfer functions of the DC motor, converter, current and speed controllers. Using the symmetric optimum method, it designs the current controller as a second-order system and the speed controller as a first-order system, reduced from their original higher orders. Simulation results show the performance of the reduced order system matches the conventional system. The document concludes the motor drive control is designed and simulated successfully using the symmetric optimum method.
Kulekhani-1 hydropower project, Nepal
The document summarizes a field trip to the Kulekhani-1 Hydropower Station located in Makawanpur, Nepal. Some key details:
- Construction began in 1977, generation started in 1982 with an installed capacity of 60 MW
- It is a reservoir-type plant that operates during peak hours and helps improve voltage stability and prevents blackouts.
- The plant has civil works like tunnels, surge shafts and an electro-mechanical system including a governor, excitation system, transformers and switchyard to regulate power distribution.
- During blackouts, its backup diesel generators energize the transmission line and help restart other power plants via a "black start" process.
DRIVERS
This document discusses drives used for heating, ventilation and air conditioning systems. It compares AC and DC drives, describing their advantages and disadvantages. AC drives have lower motor costs but higher power converter costs compared to DC drives. Microprocessor control is discussed for both AC and DC drives. Common industrial applications of microprocessor controlled AC drives are also listed, such as for fans, pumps and compressors. The document concludes with advantages of microprocessor controlled drives like better process control and reliability.
WCR Kota junction internship ppt
This is a brief presentation of my summer internship. I completed it from Kota Railway (WCR) ..i hope it will help some of you out there
Variable speed drive in pumping system
Variable speed drives (VSDs) can significantly reduce pumping system energy consumption through more efficient motor control. VSDs allow pumping system motors to vary their speed based on system demands, lowering energy usage compared to fixed speed motors. There are mechanical and electrical methods for varying motor speed, with electrical VSDs being the most common. VSDs provide advantages like reduced power requirements, increased efficiency, lower wear on pumps, and longer equipment life. However, care must be taken to avoid potential vibration issues at certain speeds. Overall, implementing VSDs in pumping systems can help address energy costs and consumption worldwide.
Electrical Drives and Controls
1. The document discusses electric drives and their components. Electric drives use electric motors as prime movers and include a power source, power modulator, motor, control unit, and sensing unit.
2. Power modulators can be converters, variable impedance circuits, or switching circuits. Converters provide adjustable voltage/current/frequency to control motor speed and torque. Variable impedance circuits and switching circuits are used to control motor parameters.
3. Electric drives are classified as individual drives, group drives, or multimotor drives depending on how many motors are used to drive different loads. Individual drives use one motor for all loads while group drives use one motor connected to multiple loads through pulleys. Multimotor
Phase Lock Loop control of dc drive
This document discusses using a phase-locked loop (PLL) to control the speed of a DC motor. A PLL synchronizes the frequency of a voltage-controlled oscillator (VCO) to the frequency of an input reference signal. For motor speed control, the VCO is replaced by the combination of the DC motor and speed encoder, which generates a feedback signal proportional to motor speed. A phase detector compares this feedback signal to the reference frequency, and the output filters and converts the phase difference into control pulses for the motor driver. This allows the motor speed to be precisely synchronized to a multiple of the reference frequency, enabling accurate digital speed control.
DC drives
This document discusses control of DC drive systems. It describes different types of DC motor configurations including series and separately excited motors. It also discusses single and three phase DC drives using converters. DC chopper drives are described as a method to control DC motor speed by adjusting the chopper voltage and duty cycle. Phase locked loop control techniques are also mentioned as a way to precisely control DC motor speed. Advantages and applications of DC drive systems are listed.
Micro computer control of dc drive
This document discusses the digital control of DC drives using microcomputers. It describes how microcomputers can be used to control the speed and current of DC motors through programs that implement constant torque and constant horsepower operations. The microcomputer provides reliable control, flexibility to change control strategies, and can incorporate additional features like diagnostics and protections. Microcomputers reduce costs and size compared to analog controls while improving control performance and reliability. Speed is detected and current sensed to provide feedback for the inner current and speed control loops implemented through the microcomputer.
Electric traction
This document discusses traction motors used in electric rail vehicles. It covers the requirements of traction systems including high starting torque and withstanding overloads. DC series motors are well suited due to developing high torque at low speeds. Speed can be controlled through methods like armature voltage and current control. Modern control uses pulse width modulation and regenerative braking returns energy to the supply system. Recent trends include use of multilevel converters for smooth waveforms and reduced harmonic losses.
Lecture 1 power systems overview
The document provides an overview of electrical power systems and their main components. It discusses the generation of power through synchronous generators, its high voltage transmission over long distances via transmission lines, its distribution over networks to lower voltages, and its utilization by customers. The quality of electrical supply is defined in terms of constant voltage, frequency, and sinusoidal waveforms without interruptions.
Electric drives
This document provides an introduction to electric drives. It discusses how electric drives use electric motors as prime movers to control motion. Approximately 50% of electrical energy is used for drives, with 75% used for constant speed applications and 25% for variable speed. The document outlines the components of electric drives and compares AC and DC motors. It also provides an overview of the classification and elementary principles of AC induction motor drives.
Electrical AC & DC Drives in Control of Electrical Drives
content
Introduction:
ELECTRIC DRIVES - A DEFINITION
Block diagram of Electrical drive:
Components in electric drives
DC drives classification in various types
Single-Phase Half-Wave-Converter Drives:
Three-phase drives
Ac motor drives
Introduction: AC Motor Drives
Stator Voltage Control:
Rotor Voltage Control:
Frequency Control:
DC DRIVES Vs AC DRIVES
Conclusion:
Thank u......
Modern electric trends in electric drives
Modern electric drives use traction motors powered by multi-stage converters to provide torque for vehicles like trains and elevators. Traction motors require high starting torque, ability to handle overloads, and withstand voltage fluctuations. Recent trends include multi-stage converters that generate near-sinusoidal voltages using fewer switches at lower frequencies than traditional converters. This improves efficiency and reduces harmonic losses and electromagnetic interference. Modular multi-level converters allow continuous current flow in all switches.
final report for print
The document provides an overview of variable speed pumped hydro storage systems using doubly fed induction machines (DFIMs). It discusses the steady state and dynamic modeling of DFIMs. For steady state analysis, it presents the equivalent circuit model and equations to determine the rotor voltage and current based on slip. For dynamic modeling, it describes using a space vector approach with differential equations to model the stator and rotor voltages, currents, and fluxes over time. The objective of the project is to simulate a variable speed pumped hydro system using a DFIM connected to a pump and controlled by a fuzzy logic controller.
Electric traction system final upload
Electric traction systems use electrical power to provide traction for railways, trams, and trolleys. The key components of an electric traction system include traction substations that transform and rectify power, overhead wiring to transmit current, pantographs or trolley poles on vehicles to collect current, track to complete the circuit, and traction motors on vehicles powered by the collected current. Electric traction systems offer advantages over other systems like steam engines in terms of lower operating costs, lack of smoke and gas emissions, lower maintenance costs, faster starting and acceleration due to high starting torque of DC and AC series motors used, and regenerative braking that feeds energy back into the system.
Summer Training Report of WCR Kota(EE)
This document is a seminar report on the West Central Railway in Kota, Rajasthan submitted by Chirag Jain to fulfill the requirements for a Bachelor of Technology degree in Electrical Engineering. It discusses the key equipment used for protection in substations, including lightning arresters, circuit breakers, current transformers, potential transformers, relays, insulators, earthing equipment, and reactors. It also provides an overview of the single line diagram of the Kota Railway Station and its incoming and outgoing feeders.
Indian railway kota presentation
(1) The document discusses a summer training presentation on railway systems including power generation for train coaches, lighting methods, air conditioning, and substations.
(2) Types of electrical power generation for trains include self generation using axle-driven systems, and mid-on, end-on, and head-on generation using external power cars or overhead lines. Air conditioning systems use a refrigeration cycle to cool coach interiors.
(3) Substations are parts of the electrical distribution system and are used to transform voltages between transmission and distribution levels. The training provided knowledge useful for the presenter's career.
Electric drive
Electrical drives are integral part of industrial and automation processes, particularly where precise control of speed of the motor is the prime requirement. In addition, all modern electric trains or locomotive systems have been powered by electrical drives. Robotics is another major area where adjustable speed drives offer precise speed and position control.
Ppt on Kharagpur railway
The document provides details about the winter vocational training conducted by 8 students at the South Eastern Railway workshop in Kharagpur. It discusses the EMU shop, power house shop, train lighting shop, and AC shop visited by the students. The EMU shop repairs and maintains electric multiple units. The power house supplies electricity to the workshop and division. The train lighting shop contains components that generate electricity on trains. The AC shop's compact air conditioning unit was also examined.
Electric traction system
Er.Amit Chaurasiya studies at Azad Technical Campus Lucknow.All slide make very clear and easily understood suitable for Electrical Engineering students. I hope you will easily understand.
Northen Western Railway
This seminar report provides an overview of the North Western Railway located in Jaipur, India. It discusses the history and organization of Indian Railways, including that the North Western Railway was established in 2002 as one of 16 zones. The report also summarizes the different types of locomotives used, including steam, diesel, and electric locomotives. It describes the key training departments for train lighting and air conditioning systems. The report outlines the different classifications of coaches based on generation of power, and provides details on end-on generation, self-generation, and mid-on generation systems. It also summarizes the major components of air conditioning systems, including compressors, condensers, gauge panels, and air ducts. The conclusion reflects
Electric traction
This document provides an overview of electric locomotives, including their main components and systems. It discusses how electric locomotives are classified and divided based on their power source. The key systems of an electric locomotive are then described, including the transmission system consisting of the pantograph and circuit breaker, the transformer, rectifier, DC link, and Arno converter. It also outlines the main traction components like the traction motors. In conclusion, it notes the advantages of electric locomotives in terms of efficiency and potential for renewable power sources.
Speed Torque Characteristics of BLDC Motor with Load Variations
Nowadays, Brushless DC motors are in high demand due to its high efficiency and other significant features. As there is no use of brushes, this type of motor is having many advantages like high torque to inertia ratio, high speed, and power density and low cost compared to conventional brushed motors. This paper determines speed torque characteristics of brushless dc motor with different load variation by using the proposed method and the developed controller. The variation in motor speed torque characteristics for half load, full load, and overloading condition is analyzed. This research has been conducted to analyze the model and compared with the simulation results which are very useful in studying the performance of motor system. The simulation is carried out in MATLAB Simulink environment. Ishita Gupta | Akash Varshney "Speed-Torque Characteristics of BLDC Motor with Load Variations" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31197.pdf Paper Url :https://www.ijtsrd.com/engineering/electrical-engineering/31197/speedtorque-characteristics-of-bldc-motor-with-load-variations/ishita-gupta
33016052 electric-traction-system
The document discusses electric traction systems used in India. It describes how 25kV AC power from overhead lines is transformed and converted to operate DC series motors to power electric locomotives. Three main stages are involved: an input converter transforms and rectifies AC to DC, a DC link further smoothes the power, and a drive converter generates three-phase AC for induction traction motors using thyristors. The document outlines the components and functions of the electric traction system, including catenaries, pantographs, circuit breakers, transformers, rectifiers, and DC series traction motors.
Rotor Resistance Control and Slip Power Control using Chopper
Rotor Resistance Control and Slip Power Control using Chopper
Closed Loop Control of Induction Motor
Slip power recovery schemes EDC
PRESENTATION BY Mr.S.DAISON STALLON AP/EEE NEHRU INSTITUTE OF ENGINEERING AND TECHNOLOGY COIMBATORE.9489745477
Power electronic converter in wind turbine.1.
1) Large wind turbines greater than 1 MW often use slip-ring induction generators with rotor converters to control slip and reduce costs.
2) Using rotor converters allows for reduced generator and converter ratings while still providing variable speed control.
3) A common configuration is a slip-ring induction generator with a diode rectifier and thyristor inverter on the rotor side for slip power recovery.
Nâng cao hiệu quả quản lý và sử dụng vốn lưu động tại công ty tnhh thương mại...
Nâng cao hiệu quả quản lý và sử dụng vốn lưu động tại công ty tnhh thương mại...https://www.facebook.com/garmentspace
Để xem full tài liệu Xin vui long liên hệ page để được hỗ trợ
:
https://www.facebook.com/garmentspace/
https://www.facebook.com/thuvienluanvan01
HOẶC
https://www.facebook.com/thuvienluanvan01
https://www.facebook.com/thuvienluanvan01
tai lieu tong hop, thu vien luan van, luan van tong hop, do an chuyen nganh
More Related Content
What's hot
Micro computer control of dc drive
This document discusses the digital control of DC drives using microcomputers. It describes how microcomputers can be used to control the speed and current of DC motors through programs that implement constant torque and constant horsepower operations. The microcomputer provides reliable control, flexibility to change control strategies, and can incorporate additional features like diagnostics and protections. Microcomputers reduce costs and size compared to analog controls while improving control performance and reliability. Speed is detected and current sensed to provide feedback for the inner current and speed control loops implemented through the microcomputer.
Electric traction
This document discusses traction motors used in electric rail vehicles. It covers the requirements of traction systems including high starting torque and withstanding overloads. DC series motors are well suited due to developing high torque at low speeds. Speed can be controlled through methods like armature voltage and current control. Modern control uses pulse width modulation and regenerative braking returns energy to the supply system. Recent trends include use of multilevel converters for smooth waveforms and reduced harmonic losses.
Lecture 1 power systems overview
The document provides an overview of electrical power systems and their main components. It discusses the generation of power through synchronous generators, its high voltage transmission over long distances via transmission lines, its distribution over networks to lower voltages, and its utilization by customers. The quality of electrical supply is defined in terms of constant voltage, frequency, and sinusoidal waveforms without interruptions.
Electric drives
This document provides an introduction to electric drives. It discusses how electric drives use electric motors as prime movers to control motion. Approximately 50% of electrical energy is used for drives, with 75% used for constant speed applications and 25% for variable speed. The document outlines the components of electric drives and compares AC and DC motors. It also provides an overview of the classification and elementary principles of AC induction motor drives.
Electrical AC & DC Drives in Control of Electrical Drives
content
Introduction:
ELECTRIC DRIVES - A DEFINITION
Block diagram of Electrical drive:
Components in electric drives
DC drives classification in various types
Single-Phase Half-Wave-Converter Drives:
Three-phase drives
Ac motor drives
Introduction: AC Motor Drives
Stator Voltage Control:
Rotor Voltage Control:
Frequency Control:
DC DRIVES Vs AC DRIVES
Conclusion:
Thank u......
Modern electric trends in electric drives
Modern electric drives use traction motors powered by multi-stage converters to provide torque for vehicles like trains and elevators. Traction motors require high starting torque, ability to handle overloads, and withstand voltage fluctuations. Recent trends include multi-stage converters that generate near-sinusoidal voltages using fewer switches at lower frequencies than traditional converters. This improves efficiency and reduces harmonic losses and electromagnetic interference. Modular multi-level converters allow continuous current flow in all switches.
final report for print
The document provides an overview of variable speed pumped hydro storage systems using doubly fed induction machines (DFIMs). It discusses the steady state and dynamic modeling of DFIMs. For steady state analysis, it presents the equivalent circuit model and equations to determine the rotor voltage and current based on slip. For dynamic modeling, it describes using a space vector approach with differential equations to model the stator and rotor voltages, currents, and fluxes over time. The objective of the project is to simulate a variable speed pumped hydro system using a DFIM connected to a pump and controlled by a fuzzy logic controller.
Electric traction system final upload
Electric traction systems use electrical power to provide traction for railways, trams, and trolleys. The key components of an electric traction system include traction substations that transform and rectify power, overhead wiring to transmit current, pantographs or trolley poles on vehicles to collect current, track to complete the circuit, and traction motors on vehicles powered by the collected current. Electric traction systems offer advantages over other systems like steam engines in terms of lower operating costs, lack of smoke and gas emissions, lower maintenance costs, faster starting and acceleration due to high starting torque of DC and AC series motors used, and regenerative braking that feeds energy back into the system.
Summer Training Report of WCR Kota(EE)
This document is a seminar report on the West Central Railway in Kota, Rajasthan submitted by Chirag Jain to fulfill the requirements for a Bachelor of Technology degree in Electrical Engineering. It discusses the key equipment used for protection in substations, including lightning arresters, circuit breakers, current transformers, potential transformers, relays, insulators, earthing equipment, and reactors. It also provides an overview of the single line diagram of the Kota Railway Station and its incoming and outgoing feeders.
Indian railway kota presentation
(1) The document discusses a summer training presentation on railway systems including power generation for train coaches, lighting methods, air conditioning, and substations.
(2) Types of electrical power generation for trains include self generation using axle-driven systems, and mid-on, end-on, and head-on generation using external power cars or overhead lines. Air conditioning systems use a refrigeration cycle to cool coach interiors.
(3) Substations are parts of the electrical distribution system and are used to transform voltages between transmission and distribution levels. The training provided knowledge useful for the presenter's career.
Electric drive
Electrical drives are integral part of industrial and automation processes, particularly where precise control of speed of the motor is the prime requirement. In addition, all modern electric trains or locomotive systems have been powered by electrical drives. Robotics is another major area where adjustable speed drives offer precise speed and position control.
Ppt on Kharagpur railway
The document provides details about the winter vocational training conducted by 8 students at the South Eastern Railway workshop in Kharagpur. It discusses the EMU shop, power house shop, train lighting shop, and AC shop visited by the students. The EMU shop repairs and maintains electric multiple units. The power house supplies electricity to the workshop and division. The train lighting shop contains components that generate electricity on trains. The AC shop's compact air conditioning unit was also examined.
Electric traction system
Er.Amit Chaurasiya studies at Azad Technical Campus Lucknow.All slide make very clear and easily understood suitable for Electrical Engineering students. I hope you will easily understand.
Northen Western Railway
This seminar report provides an overview of the North Western Railway located in Jaipur, India. It discusses the history and organization of Indian Railways, including that the North Western Railway was established in 2002 as one of 16 zones. The report also summarizes the different types of locomotives used, including steam, diesel, and electric locomotives. It describes the key training departments for train lighting and air conditioning systems. The report outlines the different classifications of coaches based on generation of power, and provides details on end-on generation, self-generation, and mid-on generation systems. It also summarizes the major components of air conditioning systems, including compressors, condensers, gauge panels, and air ducts. The conclusion reflects
Electric traction
This document provides an overview of electric locomotives, including their main components and systems. It discusses how electric locomotives are classified and divided based on their power source. The key systems of an electric locomotive are then described, including the transmission system consisting of the pantograph and circuit breaker, the transformer, rectifier, DC link, and Arno converter. It also outlines the main traction components like the traction motors. In conclusion, it notes the advantages of electric locomotives in terms of efficiency and potential for renewable power sources.
Speed Torque Characteristics of BLDC Motor with Load Variations
Nowadays, Brushless DC motors are in high demand due to its high efficiency and other significant features. As there is no use of brushes, this type of motor is having many advantages like high torque to inertia ratio, high speed, and power density and low cost compared to conventional brushed motors. This paper determines speed torque characteristics of brushless dc motor with different load variation by using the proposed method and the developed controller. The variation in motor speed torque characteristics for half load, full load, and overloading condition is analyzed. This research has been conducted to analyze the model and compared with the simulation results which are very useful in studying the performance of motor system. The simulation is carried out in MATLAB Simulink environment. Ishita Gupta | Akash Varshney "Speed-Torque Characteristics of BLDC Motor with Load Variations" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31197.pdf Paper Url :https://www.ijtsrd.com/engineering/electrical-engineering/31197/speedtorque-characteristics-of-bldc-motor-with-load-variations/ishita-gupta
33016052 electric-traction-system
The document discusses electric traction systems used in India. It describes how 25kV AC power from overhead lines is transformed and converted to operate DC series motors to power electric locomotives. Three main stages are involved: an input converter transforms and rectifies AC to DC, a DC link further smoothes the power, and a drive converter generates three-phase AC for induction traction motors using thyristors. The document outlines the components and functions of the electric traction system, including catenaries, pantographs, circuit breakers, transformers, rectifiers, and DC series traction motors.
Rotor Resistance Control and Slip Power Control using Chopper
Rotor Resistance Control and Slip Power Control using Chopper
Closed Loop Control of Induction Motor
Slip power recovery schemes EDC
PRESENTATION BY Mr.S.DAISON STALLON AP/EEE NEHRU INSTITUTE OF ENGINEERING AND TECHNOLOGY COIMBATORE.9489745477
Power electronic converter in wind turbine.1.
1) Large wind turbines greater than 1 MW often use slip-ring induction generators with rotor converters to control slip and reduce costs.
2) Using rotor converters allows for reduced generator and converter ratings while still providing variable speed control.
3) A common configuration is a slip-ring induction generator with a diode rectifier and thyristor inverter on the rotor side for slip power recovery.
What's hot (20)
Electrical AC & DC Drives in Control of Electrical Drives
Electrical AC & DC Drives in Control of Electrical Drives
Speed Torque Characteristics of BLDC Motor with Load Variations
Speed Torque Characteristics of BLDC Motor with Load Variations
Rotor Resistance Control and Slip Power Control using Chopper
Rotor Resistance Control and Slip Power Control using Chopper
Viewers also liked
Nâng cao hiệu quả quản lý và sử dụng vốn lưu động tại công ty tnhh thương mại...
Nâng cao hiệu quả quản lý và sử dụng vốn lưu động tại công ty tnhh thương mại...https://www.facebook.com/garmentspace
Để xem full tài liệu Xin vui long liên hệ page để được hỗ trợ
:
https://www.facebook.com/garmentspace/
https://www.facebook.com/thuvienluanvan01
HOẶC
https://www.facebook.com/thuvienluanvan01
https://www.facebook.com/thuvienluanvan01
tai lieu tong hop, thu vien luan van, luan van tong hop, do an chuyen nganh
Avaliacao Riscos
O documento discute a comunicação de riscos à saúde. Ele define comunicação de riscos como um processo interativo de troca de informações entre grupos sobre riscos à saúde. Além disso, discute a evolução da comunicação de riscos de ignorar o público para incluí-lo como colaborador, e sete regras fundamentais para uma boa comunicação de riscos, como escutar o público.
Tp7 buba
El resumen presenta los ingresos por temporada de una empresa. La temporada de primavera generó los mayores ingresos (44% del total anual) seguida por el verano con 36%. El otoño y el invierno tuvieron las participaciones más bajas con 5% y 16% respectivamente.
Manual weg de partida de motores elétricos
Manual weg de partida de motores elétricos
Diagramas elétricos de força e comando para aplicações residenciais, comerciais e industrias das áreas elétricas, eletrotécnica e eletrônica. Quase 100 tipos diferentes de comandos elétricos para estudantes e profissionais.
SPP Brochure (Aug. 2016)
The Super Powerbrace Plus is a modular hydraulic waler system capable of clear spanning up to 83 feet. It is one of Mabey's strongest bracing systems, able to sustain bending moments of up to 1,696 kip-ft. The Super Powerbrace Plus provides an effective and efficient shoring solution for large excavations when used in conjunction with Mabey bracing struts.
Viewers also liked (6)
Nâng cao hiệu quả quản lý và sử dụng vốn lưu động tại công ty tnhh thương mại...
Nâng cao hiệu quả quản lý và sử dụng vốn lưu động tại công ty tnhh thương mại...
Similar to multi devices universal charger
FINAL PROJECT ppt.pptx
The document describes a project that aims to improve the efficiency of electric vehicles through regenerative braking using ultracapacitors. The key objectives are to develop a low-cost system to rapidly recover braking energy and reduce stress on the main batteries. The proposed system uses an ultracapacitor bank and buck-boost converter to capture energy during braking and provide power during acceleration, minimizing energy losses. The system was simulated in Proteus and a hardware circuit was implemented with a PIC microcontroller to independently control the MOSFETs during motoring, braking and accelerating phases based on accelerator and brake potentiometer values. Testing showed efficient regenerative braking and extended battery life.
PWM SOLAR CHARGE CONTROLLER ARDUINO NANO
This document describes a pulse width modulation (PWM) solar charge controller. It begins with an introduction and objectives, then discusses the basic components and workings of solar charge controllers including PWM and MPPT types. The remainder of the document details the specific hardware components used in the implemented PWM solar charge controller prototype including an Arduino Nano microcontroller. It provides schematics, algorithms, and explanations of sections like voltage sensing, PWM signal generation, and MOSFET switching. The conclusion discusses expanding the design to be a hybrid PWM/MPPT controller to reduce costs for large-scale solar installations.
High performance fast charging of electric vehicles
1) The document proposes two circuits for fast charging of electric vehicles: a dual inverter drive circuit and a pulse current charging circuit.
2) The dual inverter drive circuit uses two inverters to double the motor voltage and reduce current ripple for more efficient fast charging.
3) The pulse current charging circuit provides discontinuous current pulses to the battery to allow for cooling between pulses and prevent issues caused by constant current charging.
pwm solar charge controller designed for 10V solar Panel
#Mpptsolarchargeregulator, #Energy:mpptsolarregulator, #Willprowsesolar:solar, #Howtochooseasolarchargecontroller, #Solarchargecontrollerreview, #Rvsolar, #Diysolar, #:offgridsolar, #, #Solarchargecontrollermppt, #Solarchargecontrollersettingsurdu, #Solarchargecontrollercm324z, #Solarchargecontroller5amp, #Solarchargecontrollerpriceinpakistan, #Solarchargecontrollercircuitdiagram, #Solarchargecontrollerrepair, #Solarchargecontrollersetup, #Solarchargecontrollersettings, #Solarchargecontroller, #Solarchargwecontroller, #Controller,#Chargwe,#Solar,#3
Charging & BMS.pptx
Charging electric vehicles can be done through various methods like Level 1, Level 2, and DC fast charging. Level 1 uses a standard 120V outlet while Level 2 uses a 240V outlet, providing faster charging. DC fast charging uses direct current to charge over 80 miles of range in 30 minutes. Wireless charging systems allow charging through induction coils in static parking spots or while driving on special roadways. Battery swapping provides an alternative to charging by exchanging depleted batteries for fully charged ones. Vehicle-to-grid technology enables electric vehicles to export stored energy back to the power grid. Battery management systems monitor battery health and safety through functions like temperature regulation, voltage balancing between cells, and protection from overcharging.
ppt EV Seminar .pptx
This document summarizes a seminar presentation on battery management systems for electric vehicle lithium-ion polymer batteries. The presentation discusses how battery management systems help maintain battery performance through cell balancing and monitoring state of charge. It also describes work done to measure state of charge and validate it using an Orion battery management system. The goals are to build a passive cell balancing prototype and evaluate its effectiveness.
Studies of Electric Vehicle Technologies
Detailed presentation on the basics of an electric vehicle, comparison of different motors for EV application, comparison of different batteries for EV application, Charging infrastructure for EV in India and a brief on BMS(Battery Management System).
Renewable energy EV power station
This document summarizes a student project on designing an optimal and fast DC microgrid-based electric vehicle charging station powered by renewable energy. It introduces the key components of electric vehicles and different charging methods. It then describes using photovoltaic arrays, wind turbines, and battery banks interconnected via DC-DC converters to power the charging station. An energy management control strategy is proposed to regulate power flow based on renewable energy generation and load. MATLAB Simulink is used to simulate the proposed DC microgrid system and study daily profiles of renewable power and charging load.
VEHICLE-TO-GRID TECHNOLOGY EMPLOYING DC FAST CHARGING SYSTEM IN MICROGRID
This document discusses vehicle-to-grid (V2G) technology using DC fast charging in a microgrid system. It proposes an architecture that uses bidirectional battery chargers and grid-tied inverters to enable power transfer between electric vehicle batteries and the microgrid. The system is modeled and simulated. Simulation results show that electric vehicle batteries can effectively regulate power in the microgrid using V2G and G2V concepts with DC fast charging. Harmonic analysis shows that the LCL filter maintains current distortion within IEEE limits.
Mobile cellphone battery charging circuit with explanation
The aim of this project is to automatically disconnect a battery from the mains when the battery gets fully charged.This system can be used to charge partially discharged cells as well.The circuit is simple and consists of AC-DC converter, relay drivers and charge stations.
Automatic Power Factor Improvement.Pptx
This document presents a project on automatic power factor improvement. It includes an introduction explaining power factor and the need for power factor correction. The objectives are to measure power factor in different environments and correct low power factors. The block diagram shows the components including a power supply, power factor measurement circuit, microcontroller, LCD, relay, and capacitor bank. The working principle is described where the microcontroller activates the relay to connect capacitors in parallel with the load as needed to improve the power factor. Advantages include reduced transmission losses and improved voltage regulation. Applications include linear loads with low power factors such as induction motors. The conclusion is that automatic power factor correction benefits both utilities and consumers.
C010341822
This document describes the design and development of a cost-effective automatic cutoff photovoltaic (PV) charge controller with indicators. The controller uses a buck converter topology with a DC-DC converter circuit to charge batteries from a PV panel in a way that prevents overcharging and optimizes the battery recharging cycle. It was implemented using inexpensive hardware components and tested with different PV cell and battery voltage levels. The proposed system provides regulated voltage and current output suitable for automatic on/off switching. It aims to increase battery lifetime by reducing the number of recharging cycles through optimized charging.
ELECTRICAL AC AND DC DRIVES
This document discusses electrical drives using AC and DC motors. It defines electrical drives as using around 50% of electrical energy for electric motors in industries and applications. The key components of electrical drives are the motor, power source, and control methods. For AC motor drives, the document discusses induction motors and synchronous motors. It also summarizes methods for controlling speed and torque of induction motors including stator voltage control, rotor voltage control, and frequency control. The document concludes that variable speed drives can improve energy efficiency compared to constant speed drives.
Solar Power generation systems 28-02-2016
This PPT gives to u clear ideas about Solar power generation and its importance in future life.Here i mentioned various types of applications of PV CELLS
SMPS
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.
Stark project smart electrical car
This project presentation summarizes an electric car called the SMART Electrical Car. The objectives are to reduce fuel usage and pollution. It proposes a self-energy generator to power the car through an efficient gear system and electrical circuit. The car uses two sets of batteries that charge and discharge alternately to power the electric motor. It also has a specialized charging circuit that uses Crouse technology and ultracapacitors to charge the batteries through multiple stages including continuously from the dynamo, opportunity charging from regenerative braking, and peak charging from the ultracapacitors.
Ac drive
AC drive, importance of AC drive, different methods of control speed of induction motor and synchonous motor, variable frequency converter, speed control by varying frequency and voltage of stator.
Solar charge-controller-presentation
This presentation mainly focus on the different types of solar charge controllers. Here we try to present the working process of these charge controllers,circuit diagrams, advantages & applications.
A new Li-ion battery charger with charge mode selection based on 0.18 um CMOS...
A new architecture of Li-Ion battery charger with charge mode selection is presented in this work. To ensure high efficiency, good accuracy and complete protection mode, we propose an architecture based on variable current source, temperature detector and power control. To avoid the risk of damage, the Li- Ion batteries charging process must change between three modes of current (trickle current (TC), constant current (CC), and constant voltage (CV)) in order to charge the battery with degrading current. However, the interest of this study is to develop a fast battery charger with high accuracy that is able to switch between charging modes without reducing its power efficiency, and to guarantee a complete protection mode. The proposed charger circuit is designed to control the charging process in three modes using the charging mode selection. The obtained results show that the Li-ion batteries can be successfully charged in a short time without reducing their efficiency. The proposed charger is implemented in 180 nm CMOS technology with a maximum charging current equal to 1 A and a maximum battery voltage equal to 4.22 V, (with input range 2.7-4.5 V). The chip area is 1.5 mm 2 and the power efficiency is 90.09 %.
E-Rickshaw battery charger manufacturer in Kolkata - ESI Electro Services
ELECTRO SERVICE (INDIA) started its operation with manufacturing of Transformers and Chokes for industrial applications in 1987. It is renowned manufacturer of smps battery charger, Transformer , toto rickshaw charger, Tuktuk Auto-Rickshaw Battery Charger etc
Similar to multi devices universal charger (20)
High performance fast charging of electric vehicles
High performance fast charging of electric vehicles
pwm solar charge controller designed for 10V solar Panel
pwm solar charge controller designed for 10V solar Panel
VEHICLE-TO-GRID TECHNOLOGY EMPLOYING DC FAST CHARGING SYSTEM IN MICROGRID
VEHICLE-TO-GRID TECHNOLOGY EMPLOYING DC FAST CHARGING SYSTEM IN MICROGRID
Mobile cellphone battery charging circuit with explanation
Mobile cellphone battery charging circuit with explanation
A new Li-ion battery charger with charge mode selection based on 0.18 um CMOS...
A new Li-ion battery charger with charge mode selection based on 0.18 um CMOS...
E-Rickshaw battery charger manufacturer in Kolkata - ESI Electro Services
E-Rickshaw battery charger manufacturer in Kolkata - ESI Electro Services
Recently uploaded
一比一原版(CalArts毕业证)加利福尼亚艺术学院毕业证如何办理
CalArts毕业证学历书【微信95270640】CalArts毕业证’圣力嘉学院毕业证《Q微信95270640》办理CalArts毕业证√文凭学历制作{CalArts文凭}购买学历学位证书本科硕士,CalArts毕业证学历学位证【实体公司】办毕业证、成绩单、学历认证、学位证、文凭认证、办留信网认证、（网上可查，实体公司，专业可靠）
(诚招代理)办理国外高校毕业证成绩单文凭学位证,真实使馆公证（留学回国人员证明）真实留信网认证国外学历学位认证雅思代考国外学校代申请名校保录开请假条改GPA改成绩ID卡
1.高仿业务:【本科硕士】毕业证,成绩单（GPA修改）,学历认证（教育部认证）,大学Offer,,ID,留信认证,使馆认证,雅思,语言证书等高仿类证书；
2.认证服务: 学历认证（教育部认证）,大使馆认证（回国人员证明）,留信认证（可查有编号证书）,大学保录取,雅思保分成绩单。
3.技术服务：钢印水印烫金激光防伪凹凸版设计印刷激凸温感光标底纹镭射速度快。
办理加利福尼亚艺术学院加利福尼亚艺术学院毕业证文凭证书流程：
1客户提供办理信息：姓名生日专业学位毕业时间等（如信息不确定可以咨询顾问：我们有专业老师帮你查询）；
2开始安排制作毕业证成绩单电子图；
3毕业证成绩单电子版做好以后发送给您确认；
4毕业证成绩单电子版您确认信息无误之后安排制作成品；
5成品做好拍照或者视频给您确认；
6快递给客户（国内顺丰国外DHLUPS等快读邮寄）
-办理真实使馆公证（即留学回国人员证明）
-办理各国各大学文凭（世界名校一对一专业服务,可全程监控跟踪进度）
-全套服务：毕业证成绩单真实使馆公证真实教育部认证。让您回国发展信心十足！
（详情请加一下 文凭顾问+微信:95270640）欢迎咨询！子小伍玩小伍比山娃小一岁虎头虎脑的很霸气父亲让山娃跟小伍去夏令营听课山娃很高兴夏令营就设在附近一所小学山娃发现那所小学比自己的学校更大更美操场上还铺有塑胶跑道呢里面很多小朋友一班一班的快快乐乐原来城里娃都藏这儿来了怪不得平时见不到他们山娃恍然大悟起来吹拉弹唱琴棋书画山娃都不懂却什么都想学山娃怨自己太笨什么都不会斟酌再三山娃终于选定了学美术当听说每月要交元时父亲犹豫了山娃也说爸算了吧咱学校一学期才转
Generative AI Use cases applications solutions and implementation.pdf
Generative AI solutions encompass a range of capabilities from content creation to complex problem-solving across industries. Implementing generative AI involves identifying specific business needs, developing tailored AI models using techniques like GANs and VAEs, and integrating these models into existing workflows. Data quality and continuous model refinement are crucial for effective implementation. Businesses must also consider ethical implications and ensure transparency in AI decision-making. Generative AI's implementation aims to enhance efficiency, creativity, and innovation by leveraging autonomous generation and sophisticated learning algorithms to meet diverse business challenges.
https://www.leewayhertz.com/generative-ai-use-cases-and-applications/
AI + Data Community Tour - Build the Next Generation of Apps with the Einstei...
AI + Data Community Tour - Build the Next Generation of Apps with the Einstei...Paris Salesforce Developer Group
Build the Next Generation of Apps with the Einstein 1 Platform.
Rejoignez Philippe Ozil pour une session de workshops qui vous guidera à travers les détails de la plateforme Einstein 1, l'importance des données pour la création d'applications d'intelligence artificielle et les différents outils et technologies que Salesforce propose pour vous apporter tous les bénéfices de l'IA.一比一原版(USF毕业证)旧金山大学毕业证如何办理
原件一模一样【微信：95270640】【旧金山大学毕业证USF学位证成绩单】【微信：95270640】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：95270640】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：95270640】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：95270640】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理旧金山大学毕业证毕业证学位证USF学位证【微信：95270640 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理旧金山大学毕业证USF学位证毕业证学位证【微信：95270640 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理旧金山大学毕业证毕业证学位证USF学位证【微信：95270640 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理旧金山大学毕业证毕业证学位证USF学位证【微信：95270640 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Assistant Engineer (Chemical) Interview Questions.pdf
These are interview questions for the post of Assistant Engineer (Chemical)
Digital Twins Computer Networking Paper Presentation.pptx
A Digital Twin in computer networking is a virtual representation of a physical network, used to simulate, analyze, and optimize network performance and reliability. It leverages real-time data to enhance network management, predict issues, and improve decision-making processes.
Unit -II Spectroscopy - EC I B.Tech.pdf
Chemical engineering and electronics engineering and chemical development of the day of the almighty paw paw paw
Call For Paper -3rd International Conference on Artificial Intelligence Advan...
* Registration is currently open *
Call for Research Papers!!!
Free – Extended Paper will be published as free of cost.
3rd International Conference on Artificial Intelligence Advances (AIAD 2024)
July 13 ~ 14, 2024, Virtual Conference
Webpage URL: https://aiad2024.org/index
Submission Deadline: June 22, 2024
Submission System URL:
https://aiad2024.org/submission/index.php
Contact Us:
Here's where you can reach us : aiad@aiad2024.org (or) aiadconference@yahoo.com
WikiCFP URL: http://wikicfp.com/cfp/servlet/event.showcfp?eventid=180509©ownerid=171656
#artificialintelligence #softcomputing #machinelearning #technology #datascience #python #deeplearning #tech #robotics #innovation #bigdata #coding #iot #computerscience #data #dataanalytics #engineering #robot #datascientist #software #automation #analytics #ml #pythonprogramming #programmer #digitaltransformation #developer #promptengineering #generativeai #genai #chatgpt #artificial #intelligence #datamining #networkscommunications #robotics #callforsubmission #submissionsopen #deadline #opencall #virtual #conference
Prediction of Electrical Energy Efficiency Using Information on Consumer's Ac...
Energy efficiency has been important since the latter part of the last century. The main object of this survey is to determine the energy efficiency knowledge among consumers. Two separate districts in Bangladesh are selected to conduct the survey on households and showrooms about the energy and seller also. The survey uses the data to find some regression equations from which it is easy to predict energy efficiency knowledge. The data is analyzed and calculated based on five important criteria. The initial target was to find some factors that help predict a person's energy efficiency knowledge. From the survey, it is found that the energy efficiency awareness among the people of our country is very low. Relationships between household energy use behaviors are estimated using a unique dataset of about 40 households and 20 showrooms in Bangladesh's Chapainawabganj and Bagerhat districts. Knowledge of energy consumption and energy efficiency technology options is found to be associated with household use of energy conservation practices. Household characteristics also influence household energy use behavior. Younger household cohorts are more likely to adopt energy-efficient technologies and energy conservation practices and place primary importance on energy saving for environmental reasons. Education also influences attitudes toward energy conservation in Bangladesh. Low-education households indicate they primarily save electricity for the environment while high-education households indicate they are motivated by environmental concerns.
Applications of artificial Intelligence in Mechanical Engineering.pdf
Historically, mechanical engineering has relied heavily on human expertise and empirical methods to solve complex problems. With the introduction of computer-aided design (CAD) and finite element analysis (FEA), the field took its first steps towards digitization. These tools allowed engineers to simulate and analyze mechanical systems with greater accuracy and efficiency. However, the sheer volume of data generated by modern engineering systems and the increasing complexity of these systems have necessitated more advanced analytical tools, paving the way for AI.
AI offers the capability to process vast amounts of data, identify patterns, and make predictions with a level of speed and accuracy unattainable by traditional methods. This has profound implications for mechanical engineering, enabling more efficient design processes, predictive maintenance strategies, and optimized manufacturing operations. AI-driven tools can learn from historical data, adapt to new information, and continuously improve their performance, making them invaluable in tackling the multifaceted challenges of modern mechanical engineering.
Bituminous road construction project based learning report
Road construction is not as easy as it seems to be, it includes various steps and it starts with its designing and
structure including the traffic volume consideration. Then base layer is done by bulldozers and levelers and after
base surface coating has to be done. For giving road a smooth surface with flexibility, Asphalt concrete is used.
Asphalt requires an aggregate sub base material layer, and then a base layer to be put into first place. Asphalt road
construction is formulated to support the heavy traffic load and climatic conditions. It is 100% recyclable and
saving non renewable natural resources.
With the advancement of technology, Asphalt technology gives assurance about the good drainage system and with
skid resistance it can be used where safety is necessary such as outsidethe schools.
The largest use of Asphalt is for making asphalt concrete for road surfaces. It is widely used in airports around the
world due to the sturdiness and ability to be repaired quickly, it is widely used for runways dedicated to aircraft
landing and taking off. Asphalt is normally stored and transported at 150’C or 300’F temperature
Open Channel Flow: fluid flow with a free surface
Open Channel Flow: This topic focuses on fluid flow with a free surface, such as in rivers, canals, and drainage ditches. Key concepts include the classification of flow types (steady vs. unsteady, uniform vs. non-uniform), hydraulic radius, flow resistance, Manning's equation, critical flow conditions, and energy and momentum principles. It also covers flow measurement techniques, gradually varied flow analysis, and the design of open channels. Understanding these principles is vital for effective water resource management and engineering applications.
一比一原版(osu毕业证书)美国俄勒冈州立大学毕业证如何办理
原版一模一样【微信：741003700 】【(osu毕业证书)美国俄勒冈州立大学毕业证成绩单】【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
This study Examines the Effectiveness of Talent Procurement through the Imple...
In the world with high technology and fast
forward mindset recruiters are walking/showing interest
towards E-Recruitment. Present most of the HRs of
many companies are choosing E-Recruitment as the best
choice for recruitment. E-Recruitment is being done
through many online platforms like Linkedin, Naukri,
Instagram , Facebook etc. Now with high technology E-
Recruitment has gone through next level by using
Artificial Intelligence too.
Key Words : Talent Management, Talent Acquisition , E-
Recruitment , Artificial Intelligence Introduction
Effectiveness of Talent Acquisition through E-
Recruitment in this topic we will discuss about 4important
and interlinked topics which are
一比一原版(爱大毕业证书)爱荷华大学毕业证如何办理
原版一模一样【微信：741003700 】【(爱大毕业证书)爱荷华大学毕业证成绩单】【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
办理(爱大毕业证书)爱荷华大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(爱大毕业证书)爱荷华大学毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(爱大毕业证书)爱荷华大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(爱大毕业证书)爱荷华大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Recently uploaded (20)
Generative AI Use cases applications solutions and implementation.pdf
Generative AI Use cases applications solutions and implementation.pdf
AI + Data Community Tour - Build the Next Generation of Apps with the Einstei...
AI + Data Community Tour - Build the Next Generation of Apps with the Einstei...
5G Radio Network Througput Problem Analysis HCIA.pdf
5G Radio Network Througput Problem Analysis HCIA.pdf
Assistant Engineer (Chemical) Interview Questions.pdf
Assistant Engineer (Chemical) Interview Questions.pdf
Digital Twins Computer Networking Paper Presentation.pptx
Digital Twins Computer Networking Paper Presentation.pptx
Call For Paper -3rd International Conference on Artificial Intelligence Advan...
Call For Paper -3rd International Conference on Artificial Intelligence Advan...
Prediction of Electrical Energy Efficiency Using Information on Consumer's Ac...
Prediction of Electrical Energy Efficiency Using Information on Consumer's Ac...
Applications of artificial Intelligence in Mechanical Engineering.pdf
Applications of artificial Intelligence in Mechanical Engineering.pdf
Bituminous road construction project based learning report
Bituminous road construction project based learning report
This study Examines the Effectiveness of Talent Procurement through the Imple...
This study Examines the Effectiveness of Talent Procurement through the Imple...
Zener Diode and its V-I Characteristics and Applications
Zener Diode and its V-I Characteristics and Applications
4. Mosca vol I -Fisica-Tipler-5ta-Edicion-Vol-1.pdf
4. Mosca vol I -Fisica-Tipler-5ta-Edicion-Vol-1.pdf
multi devices universal charger
- 1. welcome
- 2. Universal charger Prepared By Name ID 1. Raihan, Md. Rakib 14-27246-2 2. Dewan, Md. Roney 14-27283-2 3. Khan, Mehedy Hassan 14-26605-2 4. Emon, Md. Iftekhar Uddin 13-23275-1 5. Hassan, Mahmudul 11-18620-1 UNDER THE GUIDANCE OF RETHWAN FAIZ (Asst.Prof) American international university Bangladesh (AIUB)
- 3. Introduction • Universal battery chargers can charge multiple devices at a variety of charge voltages. • Key differences include specifications, performance parameters, charge modes. • The asynchronous buck boost topology which limits the charging efficiency to 80%. They also both have a minimum charge current limit of 100mA preventing the charge of low current batteries. They are pre-programmed to allow the user to choose different battery charging options but do not allow the user to create their own unique charge profiles.
- 4. UNIVERSAL PROGRAMMABLE BATTERY CHARGER • Hardware • Battery monitoring • Output voltage control • Dc analyzing • Stability • Charger performance • Efficiency • conclusion
- 5. Hardware • The Battery Charger consists of separate subsystems working together. These include a controller to control the Buck converter that provides the output voltage or current to charge the batteries, a microcontroller unit (MCU) that controls the controller and allows the user to interact with the charger, and a current shunt monitor to provide charge current feedback to the MCU. The Battery Charger consists of the modules
- 7. Output voltage control • Controlling the output of the Buck Converter essentially controls the battery charger as a whole. By varying the duty cycle of the PWM output from the MCU that feeds into the feedback node of the LM5117 Buck Controller, the controller changes the duty cycle of the Buck Converter, which changes the output
- 9. stability • This section provides insight to the control theory and frequency analysis of the closed loop system to help predict the stability of the system for both the charge current loop and battery voltage loop.
- 11. Charger performance BATTERY CHARGER SET UP RAPID CHARGE MODE QUICK RAPID CHARGE MOOD
- 12. Efficiency • Efficiency is defined as power output per power input and measures how wasteful a system is. This battery charger offers charge efficiency above 90%. The LM5117 Buck Controller uses a Synchronous Buck Converter to minimize switching losses. Other chargers use diodes or have Buck-Boost Converters that do not provide efficiency greater than 80%
- 14. Conclusion • It limits the charging efficiency to 80% • It has minimum charging current imitation of 100mA • We can charge multiple devices by using a universal charger, • By doing this process we can reduce the quantity of charger and cost
- 15. Thank you