Pulse Width Modulation Speed Control Of Dc Motors
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Adjustable Closed-loop DC Motor Speed Controller
| Author | : Nurul Atikah Nasir |
| Publisher | : |
| Total Pages | : 57 |
| Release | : 2012 |
| Genre | : Power electronic |
| ISBN | : |
The speed control of DC motors is very crucial in applications where the importance of precision and protection. Purpose of a motor speed controller is to take a signal representing the required speed and to drive a motor at that speed. Micro controller can provide easy control of DC motor. This project is about speed control system of DC motor by using micro controller and it is a closed-loop control system. Pulse Width Modulation (PWM) technique is used where its signal is generated in microcontroller which is the signal will send to motor driver to vary the voltage supply to control motor speed.
The Use of Pulse Width Modulation to Control D.C. Motor Speed and Direction
| Author | : Riley T. Hawkins |
| Publisher | : |
| Total Pages | : 80 |
| Release | : 1990 |
| Genre | : Electric motors, Direct current |
| ISBN | : |
High-speed Comparator Design for Pulse-width-modulation Control of DC Motors
| Author | : Martin Gerry Holahan |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2024 |
| Genre | : Comparator circuits |
| ISBN | : |
A New Approach to Efficiently Automize & Manage Brushless DC Motor Using Pulse Width Modulation & Radio Frequency
| Author | : Muhammad Junaid |
| Publisher | : GRIN Verlag |
| Total Pages | : 12 |
| Release | : 2015-02-10 |
| Genre | : Science |
| ISBN | : 3656894221 |
Scientific Essay from the year 2015 in the subject Engineering - Power Engineering, grade: N/A, , course: Electrical Power Engineering, language: English, abstract: The aimed objective of this Research project is to control the speed and direction of brushless DC (Direct Current) motor, through RF (Radio Frequency) module. Microcontroller is the central part of this project which is controlling all the process i.e. checking for over current, under/over voltage and starting the auxiliary motor (for load sharing) in case of overloading etc. If the motor is having under or over voltage problems then it will automatically be stopped, to protect it from any damages. The process of speed control will be done by PWM (Pulse Width Modulation) technique. & lastly an advantage feature kept is the direction control of this motor.
Pulsewidth Modulated Speed Control of Brushless DC Motors
| Author | : Andrew A. Askinas |
| Publisher | : |
| Total Pages | : 132 |
| Release | : 1984 |
| Genre | : Electric motors, Brushless |
| ISBN | : |
Until recently, few alternatives existed for the use of hydraulic and pneumatic actuators in primary flight control applications. With the advent of the samarium-cobalt permanent magnet brushless DC motor. Consideration must now be given to the utilization of an electromechanical actuator in missiles which require significant maneuvering capability and hence, greater torques. This thesis investigates the theory and techniques of pulse width modulator speed control of brushless DC motors. After describing basic pulse width modulation (PWM) concepts, two constant velocity control schemes are presented: current feedback and a limit cycle scheme. By calculating the motor form factor (a figure of merit for power losses in the switching transistors which comprise the PWM network), the relative worth of each scheme is then evaluated. An in depth study is conducted of the limit cycle approach, with an emphasis on the power loss reductions obtained through the reduction of the velocity limit settings. Originator-Supplied keywords included: Pulsewidth Modulation; Brushless DC Motors; Speed Control, Computer Programs, Fortran, Pascal language, Computerized Simulation, Theses. (Author).
Direct Current Motor Control Led by Microcontroller Created PWM
| Author | : Thinesh Kunasegeran |
| Publisher | : |
| Total Pages | : 52 |
| Release | : 2012 |
| Genre | : Microcontrollers |
| ISBN | : |
Direct current (DC) motor has already become an important drive configuration for many applications across a wide range of powers and speeds. The ease of control and excellent performance of the DC motors will ensure that it is widely used in many applications. This project is mainly concerned on DC motor speed control system by using microcontroller PIC 16F877A. Pulse Width Modulation (PWM) technique is used where its signal is generated in microcontroller. The program for PWM generation is written in C+ Language using MPLAB IDE software. It is programmed into the microcontroller using PIC Microcontroller Start-up Kit. Then the microcontroller is installed into the motor control circuit. The Microcontroller acts as the motor speed controller in this project. The PWM signal will send to motor driver to vary the voltage supply to motor to acquire desired speed. Besides, it also shows a graph of motor speed versus PWM dutycycle percentage to let the user monitor the performance of the system easily. Based on the result, the readings are quite reliable. Through the project, it can be concluded that microcontroller PIC 16F877A can control motor speed at desired speed efficiently by using Pulse Width Modulation signal.
Speed Control of Dc Motor Using Pwm Technique
| Author | : Surajit Das Barman |
| Publisher | : LAP Lambert Academic Publishing |
| Total Pages | : 56 |
| Release | : 2012-06 |
| Genre | : |
| ISBN | : 9783659151354 |
Direct current (DC) motors have variable characteristics and are used extensively in variable-speed drives. DC motor can provide a high starting torque and it is also possible to obtain speed control over wide range. Why do we need a seed motor controller? For example, if we have a DC motor in a robot, if we just apply a constant power to each motor on a robot, then the poor robot will never be able to maintain a steady speed. It will go slower over carpet, faster over smooth flooring, slower up hill, faster down hill, etc. So, it is important to make a controller to control the speed of DC motor in desired speed. DC motor plays a significant role in modern industrial. These are several types of applications where the load on the DC motor varies over a speed range. These applications may demand high-speed control accuracy and good dynamic responses. In home applications, washers, dryers and compressors are good example. In automotive, fuel pump control, electronic steering control, engine control and electric vehicle control are good examples of these. In aerospace, there are a number of applications, like centrifuges, pumps, robotic arm controls, gyroscope controls and so on.
Fundamentals of Electrical Drives
| Author | : DUBEY GOPAL K |
| Publisher | : CRC Press |
| Total Pages | : 416 |
| Release | : 2002-06-13 |
| Genre | : Education |
| ISBN | : 9780849324222 |
Encouraged by the response to the first edition and to keep pace with recent developments, Fundamentals of Electrical Drives, Second Edition incorporates greater details on semi-conductor controlled drives, includes coverage of permanent magnet AC motor drives and switched reluctance motor drives, and highlights new trends in drive technology. Contents were chosen to satisfy the changing needs of the industry and provide the appropriate coverage of modern and conventional drives. With the large number of examples, problems, and solutions provided, Fundamentals of Electrical Drives, Second Edition will continue to be a useful reference for practicing engineers and for those preparing for Engineering Service Examinations.
