Project report on speed control of dc motor using pwm pdf

Pulsewidth modulation pwm or dutycycle variation methods are commonly used in speed control of dc motors. Lm35 is a precision integrated circuit whose output voltage is linearly proportional to celsius centigrade temperature. Pwm based speed control for a dc motor international journal of. In this work, designing motor bidirectional dc control circuit using pulse width modulation pwm based on an operational amplifier model lm324 is implemented. Abstarct the aim of developing this project is to control the speed of dc motor. The main advantage in using a dc motor is that the speed torque relationship can be varied to almost any useful form. Rating is available when the video has been rented. In dc motor speed control using arduino, i have actually used the concept of pulse width modulation pwm. So, lets get started with dc motor speed control using arduino uno. This paper presents a design, simulation and implementation of pulse width modulation pwm speed control system of dc motor using microcontroller mcu. Speed control of dc motor by using pwm technique project report. A rotary encoder plate is coupled to the end of motor shaft to provide the feedback. Thus we conclude that the pwm technique is the most efficient for controlling the speed of the dc motor. May, 20 the project pwm fed speed control of induction motor using pc is implemented successfully by using 16f877a pic microcontroller.

For example in robotics it is generally used to control the moving speed of a robot whatever it may be path. In this project we are used pulse width modulation. Automation results into better quality, increased production an reduced costs. The speed control of direct current dc motor for various applications is very important. Each digital pin of the arduino can sink or source only. To accomplish this, you will need to write a code that allows the user to control the speed of the motor manually. By varying the pulse width duty cycle, we are able to create variable speed motor. In pwm, the arduino sends a pulsating wave that is similar to astable mode of 555 timer ic. Abstract this project is intended to control the speed of a dc motor utilizing pwm control with the 8051 arrangement microcontroller. The role of speed control in dc motors is very crucial in the. This paper contains the description about the design, construction and implementation of the speed control circuit for. When you turn in the lab report, please answer the following questions. If you are using microcontroller means you can bias this timer ic through micro controller gpio pin and then you can control speed of motor by varying vr1 resistor.

Certain application using semiconductor products may involve potential risks of death, personal injury, or. Speed control of dc motor using microcontroller by using. Understand the circuitry used to drive a dc motor using the 68hc11. To accomplish this, you will need to write a code that allows the user to control the speed of.

Pwm control using arduinohow to control dc motor and led. Under that condition, conducted a research on a dc motor speed control with pulse width modulation pwm method of the infrared remote control. In this project dc motors speed is controlled by sending the command through pc. Pwm dirty cycle control techniquesenable greater ef. If you have worked with any variant of the 8051 microcontroller, you might remember that 8051 doesnt have a dedicated pwm circuitry to enable pwm mode. Project report speed control of induction motor eceprojects. This feature is enabled in uno to get variable voltage over constant voltage. Speed control of dc motor using pwm technique pdf projects. Speed control of induction motor using pwm technique. Automatic speed controller of a dc motor using arduino, for. Pdf microcontroller based dc motor speed control using pwm.

There are many applications of dc motors, where we need a variable speed of dc motor. In this project, i will show how speed control of dc motor can be implemented using 555 and pulse width modulation pwm. Arduino dc motor speed motor control arduino project hub. The current work allows controlling the speed of a dc motor in both forward and reversing direction, from fully off to fully on. Arduino is directly connected to pc through the usb cable and command is given to arduino on serial monitor of the arduino ide. The duty cycle is defined as the percentage of digital high to digital low plus digital high pulsewidth during a pwm period. Speed control of dc motor by using pwm technique project. Dc motor speed controller circuit using pwm electrical. Experiment 5 dc motor speed control walter scott, jr. Speed control of dc motor using pulsewidth modulation. The micro controller is used for controlling the dc motor by producing the pwm pulses. When the speed is varied from 1 to 9, the speed increases, with the value 9 set as the maximum speed of the motor. Pdf speed control of dc motor by using pwm technique project. Dc motor speed and direction controller project based on l293d hbridge and 555 timer ic.

The pwm technique has been used to control the speed of dc motor. This tutorial is about dc motor speed control with a pic microcontroller using the pwm method. For this purpose, i have used pwm pins ena and enb of l298 motor control to control the speed of the dc motor. Apr 10, 2017 in this tutorial, i have controlled its speed as well by providing different voltage levels at the enable pin of the dc motor control driver l298. In this system, a micro controller is interfaced with a lcd, keypad and dc motor driver. This video shows about how to control a dc motor speed with pulse width modulation keeping frequency constant and varying duty cycle using a free running multivibrator. In this chapter, speed control of a dc motor using pulse width modulation pwm technique is described.

Circuit diagram of dc motor speed control using arduino is shown in the figure below. The main advantage in using a dc motor is that the speedtorque relationship can be varied to almost any useful form. Aug 06, 2014 abstarct the aim of developing this project is to control the speed of dc motor. We shall use the same dcmotor for which the parameters were calculated in the. Dc motor control tutorials the engineering projects. In industry dc motor is widely uses for speed control and load characteristics, its easy controllability. Dc motor control project electrical and computer engineering. Doc speed control of a dc motor using micro controller 8051. Dc motor speed control using arduino the engineering. In this report, we have implemented a dc motor speed control system.

May 14, 2014 iii abstract the aim of development of this project is towards providing efficient and simple method for control speed of dc motor using pulse width modulation technique. If this voltage needs to be boosted from the dc source, it can be accomplished either before the ac stage by using a dcdc boost converter, or after the ac stage by using a boost transformer. A rotary encoder plate is coupled to the end of motor shaft to provide the feedback speed signal to the controller. Categories 2011 latest ece projects, ece and eee project abstracts, electrical projects, electronics abstracts, electronics projects topics. Tutorial simple dc motor speed control circuit how to. A micro controller based speed control of dc motor using pwm technique is implemented successfully. Arduino is at the heart of the circuit as it controls all functions.

In the proposed model, we have used arduino which generates pwm signal. Speed control of dc motor using pwm a pulse width modulation concept the purpose of a motor speed controller is to drive a system at the demanded speed. There are several methods for controlling the speed of dc motors. The 293d provides bidirectional drive current up to 600ma a voltage from 5v to 12v. The hardware for the four quadrant dc motor speed control using arduino is designed. Pdf bidirectional speed control of dc motor based on pulse. A mechanism that can be used as a guideline in dc motor control is the longer the. The variable speed drives, which can control the speed of a. The optimization of dc motor uses requires speed control that can be done using pulse width modulation pwm 5. Apply pulse width modulation pwm to the application of controlling the speed of a dc.

Pwm based dc motor speed control using microcontroller circuit principle the heart of this project is the 8051 microcontroller. Share on tumblr simple circuit using timer ic 555 and mosfet irf 540 given for dc motor speed control, some dc motors have unfit rpm rotation per minute for projects to control speed of dc motor this simple circuit can be used. Speed control of dc motor using microcontroller 8051. Project report on speed control of dc motor by using pwm technique free download as word doc. Pdf microcontroller based dc motor speed control using. Towards to establish speed control, many tested have been taken place. In this project we control the 12v dc motor using 230v power supply. L293d includes the output clamping diodes for protections. Speed control of dc motor using microcontroller by using pwm. Project report on speed control of dc motor by using pwm. The aim of development of this project is towards providing efficient and simple method for control speed of dc motor using pulse width modulation technique. We use dc motors in many systems in our day to day life. For example in robotics it is generally used to control the moving speed of a robot whatever it may be path finder, opportunity or any one industrial robot.

May 24, 2017 in dc motor speed control using arduino, i have actually used the concept of pulse width modulation pwm. The purpose of this experiment is to design and implement a closeloop speed control of a dcmotor drive. Dc motor speed control system the speed control of a motor is frequently required in industrial applications, robotics, home appliances, etc. It will be helpful to vary the speed of the dc motor in either clockwise or in anti clockwise direction.

We send in a pulse width modulated signal from port t3 which will drive the motor. The inverted signal itself is composed of a pulsewidth modulated pwm signal which encodes a sine wave. The idea of a speed control system is to maintain the speed of the motor at the desired value under various condition. The modulation of pulse width is obtained using pulse width generator in atmega16 microcontroller. To calculate the speed of a dc motor, perforated disk attached to the motor shaft is. Aug 23, 2012 this video shows about how to control a dc motor speed with pulse width modulation keeping frequency constant and varying duty cycle using a free running multivibrator. Bldc motors have permanent magnets that rotate rotor and a fixed armature stator. Pwm based dc motor speed control using microcontroller. Block diagram of pwm based speed control of dc motor.

Dc motor interfacing with 8051 microcontroller using l293d. Dc motor, a fmal year report university of moratuwa illiniaus. The electric motor speed is fixed when ac motor is connected to ac line. Armature voltage is varied by pulse width modulation pwm of input dc voltage. Oct 29, 2018 pwm based dc motor speed control using microcontroller circuit principle the heart of this project is the 8051 microcontroller. Another set up consisted of half bridge rectifier consisting of. Pc based speed controlling of a dc motor, report, circuit ideas. Dc motor speed control using arduino the engineering projects. Pwm basically control the electronic pulse duration. Microcontroller based speed control of a dc motor using. Aug 26, 2018 speed control of dc motor with pc interface is an easy diy project. Azimuth antenna pedestal, bsc project, cape town, october 2007.

This paper contains the description about the design, construction and implementation of the speed control circuit for induction motor. Dc motor speed controller circuit using pwm electrical project. The pic16f877a microcontroller is programmed to generate two periodic pwm signals from its. Dc motor speed and direction controller using l293d. Speed control for dc motor with pulse width modulation.

The project circuit for speed control of dc motor using microcontroller 8051 is shown in the figure below. Another set up consisted of half bridge rectifier consisting of thyristor wherein the speed control for the same dc motor was carried out using the firing angle of the thyristor. Dc motor speed control using pic microcontroller pwm method. Generally, a dc motor consists of either an electromagnet or a permanent magnet and a wounded coil known as the armature. Here we are going to interface a dc motor to arduino uno and its speed is controlled. The dc motor whose speed is to be controlled using the pid controller in the fig. Nov 07, 2014 pwm is method that may be used as a efficient dc motor speed control. Below in summary charts torque to duty cycle are presented in the cases scenarios. In particular requirement, setting a speed dc motor as the driving equipment must be performed remotely. The sn754410 is a handy ic that allows you to control. Controller used tv remote control to send data to atmega16 microcontroller through the ir receiver. A pwm dc motor controller technology is used to control the speed. Direct current is applied to the armature by means of a carbon brush or by means of electromagnetic induction. Apr 19, 2016 share on tumblr simple circuit using timer ic 555 and mosfet irf 540 given for dc motor speed control, some dc motors have unfit rpm rotation per minute for projects to control speed of dc motor this simple circuit can be used.

The main intention of this project is to control the speed of dc motor using 8051 microcontroller which can be achieved by interfacing dc motor with 8051. Speed control of dc motor using pulse width modulation, 555. Weve described here a pwm based speed control circuit that smoothly controls the speed of generalpurpose dc motors. Only difference is that and additional motor driver circuit using a transistor is included in the circuit.

It is needed to connect the positive input vcnt to the pin pf the arduino card and the negative input pin gnd to the gnd of the card as shown in the figure. Todays industries are increasingly demanding process automation in all sectors. This is a model circuit that can control the speed and the direction of a dc motor without the hbridge its an alternative to hbridge. Download speed control of dc motor using pwm technique pdf.

To achieve the speed control an electronic technique called pulse width modulation is used which generates high and low pulses. Speed control of dc motor by using pwm technique project is a electronics and electrical engineering final year project. The project pwm fed speed control of induction motor using pc is implemented successfully by using 16f877a pic microcontroller. Automatic speed controller of a dc motor using arduino. For receiving pwm indications, motor drivers ic is connected to the microcontroller for distributing much wanted output for pace control of a small dc machine. The dc motor driver l293d is used in this project as it is a component that has dual full bridge driver where it also can control the direction of the dc motor.

The modulation of pulse width is obtained using cd4010b schmitt trigger and rectifier 1n4140. For example, cpu fans, fume extinguishers, toy cars etc. This paper reports a microcontroller based control system to change the speed and direction of rotation of dc motor. We used the fact that the speed of a dc motor is directly proportional to the voltage applied across its windings. Speed control input msp 430 open loop control motor drive circuit motor pwm control bldc motorcontrolintroduction. We provide detailed information on how to develop this project with block diagram explanation,circuit diagrametc. Tutorial simple dc motor speed control circuit how to make. In this tutorial, i have controlled its speed as well by providing different voltage levels at the enable pin of the dc motor control driver l298.

In addition the dc motor speed control project can be improved by bringing into play power electrical gadgets like igbts to get speed control top capacity industrialized motors. Speed control for dc motor with pulse width modulation pwm. Control speed and direction of motor arduino project hub. In this project paper microcontroller based system to control speed of induction motor is developed using pulse width modulation technique 2. For example, it has applications in electric cars, trucks, and aircraft. This is a good electronic project report on speed control of dc motor using microcontroller by using pwm. Pwm based speed control for dc motors full project available. Four quadrant dc motor speed control using arduino 1, bibhuti. This command controls the l293d driver ic to control the direction and speed of a dc motor.

Pdf bidirectional speed control of dc motor based on. Speed control using pwm pdf tim bennett and vincent rosa. Apr 08, 2018 in this project, i will show how speed control of dc motor can be implemented using 555 and pulse width modulation pwm. The working principle and program of this circuit is same as that of the led brightness control. Part 1fully functional dc motor control in this lab you will create a control interface and use the knowledge from lab 3 to create a pwm square wave to drive a dc motor.