Motor Drivers
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This document provides an overview of robotics motor drivers and DC motor control circuits. It discusses DC motor direction control using an H-bridge circuit and DC motor speed control using pulse width modulation (PWM). PWM allows modifying the duty cycle of a waveform based on a control voltage and is implemented using the 555 timer IC to control both the speed and direction of a DC motor.
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This document proposes a direct torque control strategy for doubly fed induction machine-based wind turbines that can operate under voltage dips without crowbar protection. The control strategy generates a rotor flux amplitude reference to control the torque of the wind turbine and reduce stator and rotor overcurrents during faults. It also provides fast dynamic response. While the control does not eliminate the need for crowbar protection entirely, it can prevent the crowbar from activating during low-depth voltage dips. The direct torque control approach maintains machine connection to the grid and reduces torque oscillations during faults.
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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.
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Seminar report on robotics (line follower) ppt
This document summarizes a seminar report on robotics. It defines a robot as an electromechanical device that can perform tasks automatically or by remote control. Robots are used in various industries like automotive, manufacturing, medical, military, space exploration, and research. The document discusses the applications of robots in these industries. It also explains the need for robots and identifies their main components as sensors, processors, actuators and motors that work together to give robots movement and ability to interact with their surroundings. The document provides examples of different sensors, motors and a sample Arduino code for robot movement.
Industrial robotics
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Computer aided manufacturing robotic systems
The document discusses industrial robots, including their basic components, types of joints, movement and precision, power sources, sensors, end effectors, and applications. An industrial robot generally consists of rigid links connected by joints to form an arm with an end effector or hand. It is controlled by a computer and can be programmed to perform automated tasks through variable motions. The document covers various robotic systems and their use in manufacturing.
Robot programming
This document discusses robot programming methods. It describes different types of robot programming including joint-level, robot-level, and high-level programming. It also covers various robot programming methods such as manual, walkthrough, leadthrough, and offline programming. Specific programming languages and their applications are also summarized.
State of Robotics 2015
This document provides an overview of the state of robotics in 2015. It discusses major trends seen that year, including faster/cheaper components, more startups and funding, and the growing robot-as-a-service model. Specific areas covered include drones becoming more advanced and popular, progress in autonomous vehicles, the expansion of service robots into new industries, lifestyle robots entering homes, and continued development of social robots.
Basics of Robotics
Robotics is the study and application of robot technology. The term "robot" was first coined in 1920 and comes from the Czech word for forced labor. There are several types of robots including industrial robots used in manufacturing, mobile robots that can move autonomously, educational robots used in classrooms, and domestic robots for household tasks. The main components of a robot include its manipulator or rover body, end effectors for interacting with the environment, actuators that provide movement, sensors for awareness of surroundings, a controller for coordination, and software for operation. Robots are used for a variety of purposes like dangerous, repetitive, or impossible tasks that can assist or replace humans.
ROBOTICS AND ITS APPLICATIONS
Robotics is the branch of technology that deals with the design, construction, operation, and application of robots. Robots can take the place of humans in hazardous or manufacturing processes, or resemble humans. Many modern robots are inspired by nature. The history of robots dates back to ancient myths, but modern concepts developed with the Industrial Revolution and introduction of electricity. Today, robots play a widespread role in industrial operations, classified as assembly/finishing products, moving materials/objects, or performing hazardous/difficult tasks. Robots provide quality work and increased production quantities for industries like manufacturing. They are also used in medical applications like surgery and rehabilitation. Household robots may perform tasks like cleaning in the future.
Industrial robots
This document defines robots and describes different types of industrial robots. It begins by defining a robot as a machine that can carry out complex actions automatically through programming to resemble human movements and functions. The main components of a robot are then outlined as the robot arms, sensors, end parts, controller, and drive. Several common types of industrial robots are also described, including Cartesian, cylindrical, spherical/polar, SCARA, articulated, and parallel robots. Each robot type is suited for different assembly or manufacturing tasks.
robotics ppt
Roboticists develop robotic devices that can move autonomously and be programmed to behave in certain ways. Robots are considered intelligent if they can safely interact with unstructured environments while achieving specified tasks. The word robotics was first used in a 1942 Isaac Asimov short story and he explored ideas like robotherapists. Asimov also established three laws of robotics concerning not allowing or causing harm to humans. There are different types of robots including mobile, rolling, walking, stationary, autonomous, and remote-controlled robots that can have various purposes like exploration, manual labor, or controlled tasks.
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Motor Drivers
- 1. TECHNOLOGY ROBOTICS SOCIETY Indian Institute of Technology, Kharagpur
- 2. A TUTORIAL ON ROBOTICS Motor Drivers
- 5. H – Bridge Working Copyright © Robotix Team, IIT Kharagpur S1 S2 S3 S4 Current Direction Effect 1 0 0 1 1 to 2 Motor spins forward 0 1 1 0 2 to 1 Motor spins backward 1 1 0 0 - Braking Occurs 0 0 0 0 - Free running
- 11. Both Speed & Direction Control Copyright © Robotix Team, IIT Kharagpur