Under that condition, conducted a research on a dc motor speed control with pulse width modulation pwm method of the infrared remote control. To achieve the speed control an electronic technique called pulse width modulation is used which generates high and low pulses. For this dc motor is interfaced to the 8051 microcontroller. Speed control of brushless dc motor using microcontroller. Thus we can count number of such applications where there is a need to change direction andor speed of dc motor. Speed control of dc motor using pic 16f877a microcontroller tarate akshay arun department of electrical engg. Pwm dc motor speed controller using atmega8 microcontroller. At the heart of the dc motor controller is microcontroller at89c51. Using pulse width modulation pwm by switching the transistors on. The design showed good velocity tracking performance under both load and noload conditions. Controlling a dc motor with arduino in this tutorial we will be using an arduino to control the speed and direction of a dc motor. This paper reports a microcontroller based control system to change the speed and direction of rotation of dc motor. Speed control of dc motor using pic microcontroller the. Modified microcontroller based speed control of dc motor using.
Dc motor is the most used motor in robotics and electronics projects. But when it comes to controlling the speed using microcontrollers. Project report speed control of induction motor eceprojects. Interfacing dc motor with pic microcontroller using l293d. Bidirectional speed control of dc motor based on pulse. The work involves design and fabrication of a variable frequency pwm inverter using igbt, operating from a dc source2. To achieve the speed control dac is used which generates voltages gradually according to. In our robotics applications we may have to control the speed of the dc motor. Armature voltage is varied by pulse width modulation pwm of input dc voltage. How to control the speed of brushless dc motor without. Bakibillah and others published microcontroller based closed loop speed control of dc motor using pwm technique find, read and cite all the research you need on. The direction of dc motor can be controlled by just reversing the polarity of given supply. Two push button switches are provided to control the speed of the motor.
The main advantage in using a dc motor is that the speedtorque relationship can be varied to almost any useful form. To drive the dc motor, a four channel monolithic integrated buffer circuit was used. And for varying speed, there are various ways to vary speed of dc motor but the best amongst them is pwm pulse width modulation technique. Then the pwmpulse width modulation technique is used. For this tutorial we will be using our basic dc hobby motor but this tutorial can be applied to just about any dc motor out there that falls within the peak voltage and current specifications of the hbridge we are. In this project, i will show you how to generate a pwm signal using 8051 microcontroller.
Their are two ways to generate pulse width modulation signal using 805189c51,89c52 microcontrollers. By using pwm we can easily control the average power delivered to a load and by thus we can easily control the speed of the dc motor. For the generation of these pulses a microcontroller. Here is a simple project on how to control fan or dc motor speed with microchip pic16f877 microcontroller. Dc motor speed control using 8051 microcontroller youtube. Pdf this paper reports a microcontroller based control system to change the speed and direction of rotation of dc motor. The main core of this project is to design a speed control system of dc motor by using. Dc motor speed control using pwm with pic microcontroller. A dc brushless motor uses a permanent magnet external rotor, three phase of driving coils, one or more hall effect devices are used to sense the position of rotor, and the associated drive electronics. Then the pwm pulse width modulation technique is most effective. Doc speed control of a dc motor using micro controller 8051 1. Using simulation with simulink, you can reduce the amount of prototype testing and verify the robustness of control. This motor is three phase motor, it has three stator phases that are excited two at a time to create. The dc motor is very difficult to contr ol unlike the stepper motor, which can be controlled by giving the appropriate control word.
You can generate it by using timers of 805189c51,89c52 microcontroller or you can switch a particular pin high and low so rapidly with some arbitrary delay in. Microcontroller based speed control of a dc motor using. Dc motor speed control using microprocessor technique. The purpose of a motor speed controller is to take a signal representing the required speed, and to drive a motor at that speed. I already posted about interfacing dc motor with pic microcontroller. Hence speed of the dc motor is controlled by pwm technique. It is used in those engineering projects where you want an analog output.
The speed control of dc motor is control in all the four quadrant and it uses 8051 family microcontroller along with a motor driver ic to drive the motor. This paper uses the above principle to control the speed of the motor by varying the duty cycle of the pulse applied to it. Conclusion it is quite clear from the above discussion that speed control of dc motor using microcontroller by using pwm may be a comprehensive system that. In this project we will be able to control the speed of dc motor with potentiometer and we can adjust the speed by rotating the knob of potentiometer. For example, you want to control the speed of your dc motor then you need pwm pulse. The 555 timer can also be used for pulse generation, pwm, ppm pulse. Pwm based speed control for a dc motor international journal of.
This project utilizes the above guideline to control the speed of the dc motor by. Microcontroller based closed loop speed control of dc motor. We can drive two dc motors with one l293d, in this example we are using only the first pair of drivers to drive one dc motor. Pwm based dc motor speed control using microcontroller. For the generation of these pulses a microcontroller at89c51 is used. Below are some tweaks we did for rotating the dc motor clockwise, anticlockwise and. The ampl itude of the appl ied voltage is adjusted using the pwm technique. The datasheet of micro controller tms 320 f 28027 provided the working. It gives a reliable, durable, accurate and efficient way of speed control of a dc motor. Pic16f877a microcontroller, pwm generation, feedback loop, driver circuit. This is practical and highly feasible in economic point of view. As a microcontroller is used to set the speed ranges which is done by changing the duty cycles time period in the program. This is to regulate the amount of energy produced by the machine and the amount of work required to be done by the system at a given time duration. As a microcontroller is used to set the speed ranges which is done by changing the duty.
On this page you can read or download speed control of servo motor using microcontroller in pdf format. The duty cycle is defined as the percentage of digital high to digital low plus digital high pulsewidth during a pwm period. There are numerous ways to control the speed of motoror fan. The term project develops a speed control system for a direct current dc motor.
The main function of driver circuit is to generate 12 v dc pulse. It is practical and highly feasible in economic point of view and has an advantage of running motors of higher ratings. Programming the pic16f877a microcontroller for speed. The speed of the motor as well as the operation of motor in four quadrants such as forward brake, reverse brake, clockwise, anticlockwise rotation can be controlled using 8051 microcontroller. The fuzzy logic controller flc was also adopted in 16 for the control of the speed of brushless dc motors. Here, we do the same experiment by using a microcontroller. Dc motor speed control using 8051 microcontroller mahesh madivali. How to control speed of dc motor using pulse width moduation and duty cycle, how to change speed using. Speed control of dc motor without microcontroller sharp meg. The project is designed, tested, and evaluated over several weeks, and has the following parts. Speed control of dc motor shunt, series and compound. Only difference is that and additional motor driver circuit using. Sensored bldc motor control using pic16f877a ccs pic c compiler this topic shows an easy way to drive a cdrom sensored brushless dc motor bldc motor using pic16f877a microcontroller with ccs pic c code.
The speed of a shunt motor can be changed by flux control method. Dc motor or fan speed is controlled using pwmpulse width modulation technique. In this tutorial we will see how to control the speed of a dc motor using pulse width modulation. The best method for speed control of dc motor is the use of pulse width modulation technique.
Pdf microcontroller based dc motor speed control using. This ppt shows that the process to control the speed of a dc motor using micro controller. Speed control of dc motor using microcontroller semantic. Speed control for dc motor with pulse width modulation.
Pwm is an abbreviation of pulse width modulation and is used in many engineering projects. Shinde krishnat arvind speed control of dc motor using pic. The buffer ic used here ic 4050 is used for pulse generation to generate triggering pulse. The objective is to implement variable frequency sinusoidal pwm inverter in order to control the speed of the induction motor using microcontroller. Speed control of dc motor using microcontroller free download as powerpoint presentation. Pdf microcontroller based closed loop speed control of. Using atmel at89s52 microcontroller generate the pwm wave for speed control of. Dc motor speed control using pic microcontroller pwm method. The hardware for four quadrant dc motor speed control using microcontroller is designed. Speed control of dc motor using microcontroller 8051 pdf.
Rohit naik 07241a0247 in partial fulfillment for the award of the degree of bachelor of technology in electrical and electronics engineering gokaraju rangaraju. Apart from these techniques, pulse width modulation is the effective way to implement motor speed control. Target motor theory dc motor with speed and current closed loops, driven by etpu on mpc5554, rev. Design and implementation of dc motor speed control. The drive system comprising the drive and the dc motor is vital to speed control in dc motor. This is a method to control the output voltage with the of constant frequency switching and by adjusting on duration of switching and in other words by changing duty cycle of switching. This paper contains the description about the design, construction and implementation of the speed control circuit for. The objective of developing this project is to control the speed of dc motor. Controller used tv remote control to send data to atmega16 microcontroller through the. The speed of dc motor is directly proportional to the voltage applied across its terminals. Dc motor speed control using arduino and potentiometer. Time settings are possible for forward and reverse running of the motor. 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.
Complete matlab code, after editing it for dc motor control, is given at the end of this project. Speed control of dc motor using microcontroller 8051 with. Speed control of dc motor using microcontroller arduino. In this project, we will control the speed of a dc motor using lpc2148 mcu and a potentiometer by implementing pwm technique. In the previous projects, we have seen a simple dc motor control using lpc2148 and push buttons and also controlling of a servo motor using the same components. Speed control of three phase squirrel cage induction motor. Here the dc motor is controlled by the microprocessor 8085. We can achieve speed control of dc motor using mechanical or electrical techniques but they require large size hardware to implement but a microcontroller based system provides an easy way to control the speed of dc motor. A bluetooth modem is used to receive direction commands and pwm commands. Dc motor speed control using microprocessor technique intoduction. Speed control of a dc motor using microcontroller 8051 a project report submitted by s. Speed control methods of various dc motors are explained in the links given below. Controller used tv remote control to send data to atmega16 microcontroller through the ir receiver.
Direction of rotation of dc motor is changed by initiating an interrupt signal to the microcontroller using push switches. Dc motor interfacing with 8051 microcontroller using l293d. Pwm control using arduinohow to control dc motor and led. Circuit description of microcontrollerbased dc motor controller. If you dont see any interesting for you, use our search form on bottom v. In todas post, i am going to share how to generate pwm in 8051 microcontroller. The four quadrant dc motor speed control with 8051 microcontroller is shown in the below figure. Speed control for dc motor with pulse width modulation pwm. Controlling the speed of dc motor can be done by different ways like using a potentiometer and also by a controlled current to the armature. The motor manufacturer specifies the operating voltage level and speed range. Arockia edwin xavier thiagarajar college of engineering,electrical and electronic engineering madurai,tamil nadu email.
The pic will generate the pwm signals from ccp1 and ccp2 modules at port c rc2 and rc1 to drive the dc motor and control its speed. Pdf modified microcontroller based speed control of dc motor. Here is a simple project on how to control fan or dc motor speed uisng pic 16f877 microcontroller. Speed control of dc motor using pic microcontroller. Doc speed control of a dc motor using micro controller 8051. Simple analogue bidirectional dc motor speed control. The project pwm fed speed control of induction motor using pc is implemented successfully by using 16f877a pic microcontroller. Pdf microcontroller based dc motor speed control using pwm. Pwm is method that may be used as a efficient dc motor speed control. The working principle and program of this circuit is same as that of the led brightness control.
This system dc motor controller by android is developed to control the speed of the dc motor in both clockwise and anticlockwise direction. The speed of the motor is directly proportional to the applied voltage. To control dc motor speed with pic microcontroller, we should know about these two features. For controlling the speed of dc motor we have various methods, but in this project we are controlling dc motor speed using pwm. Speed control of servo motor using microcontroller. This paper presents speed control of dc motor using an 8051 series microcontroller. Pcb of the control circuit has also been designed and fabricated.
Hence, if voltage across motor terminal is varied, then speed can also be varied. Here we will use a technique called pwm pulse width modulation to control the speed of dc motor. Circuit diagram of dc motor speed control using arduino is shown in the figure below. Pulsewidth modulation pwm or dutycycle variation methods are commonly used in speed control of dc motors. Sensored brushless dc bldc motor control with pic16f877a. Pwm based dc motor speed control using microcontroller circuit principle the heart of this project is the 8051 microcontroller.