This is to certify that the work in the thesis entitled temperature controlled dc fan using microcontroller by ghana shyam soren, bearing roll number 111ee0236, and ram ashish gupta, bearing roll number 111ee0211, is a record of an original research work carried out by them under my. Pwm based dc motor speed control using microcontroller. Generally stepper motor use 200 steps to complete 360 degree rotation, means its rotate 1. Jan 15, 2014 pwm dc motor speed control using 8051 mechaterrain. To control the speed of the dc motor, you need a variablevoltage dc power source. Sep 22, 2018 by interfacing dc motor to the microcontroller, we can do many things like controlling the direction of the motor, controlling the speed of the motor. The entire motor structure features our latest brushless dc motor technology and has been innovated in pursuit of the optimal performance. For example, you want to control the speed of your dc motor then you need pwm pulse. Pwm is an abbreviation of pulse width modulation and is used in many engineering projects. Speed control of dc motor using microcontroller 8051 pdf. Microcontroller based dc motor speed control using pwm technique conference paper pdf available december 2012 with 14,260 reads how we measure reads. In todas post, i am going to share how to generate pwm in 8051 microcontroller. This is a simple pwm based dc motor speed control system circuit using atmega8 controller. Interfacing dc motor with 8051 using l293d the dc motor is connected to the first pair of drivers and it is enabled by connecting en1 to logic high 5v.
By adjusting the duty cycle of pulse from pulse width modulation. The control circuit consists of 8051 microcontroller, which processes the user commands and controls the switching of devices. There are numerous ways to control the speed of motoror fan. A servo motor is one of the most commonly used motor for precise angular movement. Find dc motor control using 8051 related suppliers, manufacturers, products and specifications on globalspec a trusted source of dc motor control using 8051 information. In the present investigation attempts have been made to design and develop at89c51 microcontroller based embedded closed loop speed control system of dc motor where proportional p control algorithm has been implemented to control the firing angle of the scr for controlling the voltage applied to the dc motor. The red wire is the dc supply lead and must be connected to a dc voltage supply in the range of 4. There are many applications of dc motors, where we need a variable speed of dc motor. The dc motor interfacing with 8051 microcontroller is used for controlling the speed of the motor and drive the high volatges using motor driver l293d ic. A temperature controlled dc fan is a system which automatically turns on a dc fan when the ambient temperature increases above a certain limit.
Stepper motor interfacing with 8051 microcontroller at89s52. Dc motors are widely used in speed and direction control because control of these motors are easier than other motors. Then the pwm pulse width modulation technique is most effective. Microcontroller based dc motor control jayshree sahu,s. Abstract dc motor control means direction and speed control of a dc motor. Jan 24, 2019 by interfacing dc motor to the microcontroller, we can do many things like controlling the direction of the motor, controlling the speed of the motor. May 22, 20 interfacing servo motor with 8051 circuit diagram 8mhz crystal is used to provide the required clock for 8051 microcontroller and 22pf capacitors are used to stabilize the operation of crystal. Instead of commutating the armature current using brushes, electronic. 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. Pdf microcontroller based dc motor speed control using pwm. A brushless dc motor is a dc motor turned inside out, so that the field is on the rotor and the armature is on the stator. The sn754410 is a handy ic that allows you to control.
Rohit naik 07241a0247 in partial fulfillment for the award of the degree of bachelor of technology in electrical and. We are going to use l293d motor driver ic to control dc motor movement in both. Motion control plays a vital role in industrial automation. Here, 8051 microcontroller is used to control the 12v dc series motors for the desired position. This paper presents speed control of dc motor using an 8051 series microcontroller. Stepper motor interfacingcontrol using 8085 and 8051. Development of embedded speed control system for dc servo motor using. Design and implementation of driving circuits for dc motor control using 8051 ashmi. Speed control of dc motor using microcontroller 8051. We are developing the code for the dc motor controller using at89s51 microcontroller. Different types of motorsac, dc, servo or stepperare used depending upon the application. We use embedded c for code development, keil microvision as ide, progisp for uploading. The main loop is only writing to the motor bit for a very short period of time before committing to a read of the serial port, and that motor write leaves a 1 in the control port bit no matter what duty cycle was selected, so the motor should be left either running or stopped. The microcontroller at89s52 is used to control the dc motor speed.
Interfacing dc motor with 8051 microcontroller using l293d. Sivanandan 1 research scholar, 2 pg scholar, 3professor, department of electrical engineering national institute of technology calicut kerala, india 673 601 abstract in the present living conditions people with muscle. In many projects of embedded systems, we may need to control a dc motor using controller. Speed control of dc motor using pulse width modulation. Interfacing servo motor with 8051 microcontroller using keil. Speed control of brushless dc motor using microcontroller. But op says pressing a key either stops or runs the motor. Speed control of dc shunt motor using microcontroller and. Dc motor can be easily interfaced with 8051 or at89c51 microcontroller using l293d quadruple half h bridge driver and the programming is done using keil c. By interfacing dc motor to the microcontroller, we can do many things like controlling the direction of the motor, controlling the speed of the motor.
Servo motor working and interfacing with 8051 microcontroller. Speed control of dc motor using microcontroller semantic. This tutorial is about dc motor speed control with a pic microcontroller using the pwm method. This paper uses the above principle to control the speed of the motor by varying the duty cycle of the pulse applied to it. Complete matlab code, after editing it for dc motor control, is given at the end of this project. Embedded system of dc motor closed loop speed control based.
Rohit naik 07241a0247 in partial fulfillment for the award of the degree of bachelor of technology in electrical and electronics engineering gokaraju rangaraju. Below are some tweaks we did for rotating the dc motor clockwise, anticlockwise and. Abstractdc motor control means direction and speed control of a dc motor. The below circuit shows interfacing l293d with pic microcontroller to control a dc motor. Hence, if voltage across motor terminal is varied, then speed can also be varied. Speed control of dc motor using pic microcontroller. Pdf the electric drive systems used in industrial applications are increasingly. Pdf microcontroller performance for dc motor speed control system. Lets interface dc motor with at89s52 microcontroller and control the dc motor speed by using speed increment switch and speed decrement switch connected to microcontroller port and direction by using direction switch. Interfacing servo motor with 8051 microcontroller using.
Interfacing dc motor to 8051 microcontroller using at89s51. The speed of dc motor is directly proportional to the voltage applied across. Dec 11, 2014 introduction this project deals with bidirectional speed control of dc motor using 8051 microcontroller design of h bridge dcdc converter is an igbt based bridge circuit the control circuit consists of the 8051 microcontroller which is programmed to generate pulses to turn on igbts s per required sequence the h bridge dcdc converter is. Here is a simple project on how to control fan or dc motor speed with microchip pic16f877 microcontroller. The brushless dc motor is actually a permanent magnet ac motor whose torque current characteristics mimic the dc motor. A well designed 8051dc motor system has essentially two parts. Dc motor speed controller using pulse width modulation. So this heat should be reduced in order to protect the device. Oriental motor usa brushless dc motor speed control system the bmu series features a compact, highpower and highefficiency brushless dc motor and is combined with an easy to use, easy to set speed controller. Since the maximum current that can be sink from 8051 microcontroller is 15 ma at 5v. But when it comes to controlling the speed using microcontrollers. Interfacing servo motor with 8051 circuit diagram 8mhz crystal is used to provide the required clock for 8051 microcontroller and 22pf capacitors are used to stabilize the operation of crystal.
Speed control of dc motor using 8051 micro controller keil and proteus. 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. Dc motor speed control using pic microcontroller pwm method. The best method for speed control of dc motor is the use of pulse width modulation technique. 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.
Arockia edwin xavier thiagarajar college of engineering,electrical and electronic engineering madurai,tamil nadu email. Design and implementation of driving circuits for dc motor control using 8051. Doc speed control of a dc motor using micro controller 8051 1. Apr 19, 2017 this video explains the procedure to control the speed of a dc motor using 8051 microcontroller. Introduction this project deals with bidirectional speed control of dc motor using 8051 microcontroller design of h bridge dcdc converter is an igbt based bridge circuit the control circuit consists of the 8051 microcontroller which is programmed to generate pulses to turn on igbts s per required sequence the h bridge dcdc converter is. F capacitor is used to provide the required power on reset por to the microcontroller.
The advantage of using a servo motor is that the angular position of the motor can be controlled without any feedback mechanism. For example, it has applications in electric cars, trucks, and aircraft. The l293d can provide bidirectional drive currents of up to 600ma at voltages from 4. Design and implementation of driving circuits for dc motor control. Speed control of dc motor using pic microcontroller the. This article shows how to interface a dc motor to an 8051 microcontroller. Dc motor interfacing with 8051 microcontroller using l293d. The speed of dc motor is directly proportional to the voltage applied across its terminals. Stepper motor interfacingcontrol using 8085 and 8051 stepper motor a stepper motor is a device that translates electrical pulses into mechanical movement in steps of fixed step angle. Pd60312b 1022014 irmcf311 dual channel sensorless motor control ic for, motor integrated power factor correction control supports both interior and surface permanent magnet, twochannel analog output pwm embedded 8bit high speed microcontroller 8051 for flexible io and, channels 6 a. Interfacing dc motor to 8051 forms an essential part in designing embedded robotic projects. Manufacturing plants in industries like chemical, pharmaceutical, plastic and textile, all require motion control. It is not good to connect dc motor directly to the microcontroller. Doc speed control of a dc motor using micro controller 8051.
Design and implementation of driving circuits for dc motor. Hello friends here is a proteus simulation of speed control of dc motor with the help of pulse width modulation pwm control, pwm signals are generated by 8051 microcontroller. Aug 06, 2014 doc speed control of a dc motor using micro controller 8051 1. Driving circuits for dc motor control using 8051 microcontroller suitable for applications related to prosthetic legs article pdf available august 20 with 906 reads how we measure reads. Stepper motor is brushless dc motor, which can be rotated in small angles, these angles are called steps. At89s51 is the microcontroller used here and l293 forms the motor driver. 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. Pdf driving circuits for dc motor control using 8051. Firstly an 8051 with the required software to control the motor and secondly a suitable driver circuit. Interfacing dc motor with 8051 using l293d at89c51 keil c. And it may be a flatbelt application, flow control application or mixing of substances. Here is the detailed tutorial on stepper motor interfacing with 8051 microcontroller explained with circuit diagram and code. Embedded system of dc motor closed loop speed control. Temperature controlled dc fan using microcontroller.
Speed control of a dc motor using microcontroller 8051 a project report submitted by s. The project circuit for speed control of dc motor using microcontroller 8051 is shown in the figure below. At89c51 based dc motor controller electronics for you. It is used in those engineering projects where you want an analog output. The stepper motor rotates in steps in response to the applied signals. As we have discussed earlier that proteus is a really good simulation software for beginners and 8051 is the most basic among all microcontroller so this. Pdf microcontroller based dc motor speed control using. The t89c51ac2 is an 8bit microcontroller based on the 8051 architecture. Pwm based dc motor speed control using microcontroller circuit principle the heart of this project is the 8051 microcontroller. As soon as the power supply is switched on, the dc motor starts gaining speed and if you. Oct 29, 2018 pwm based dc motor speed control using microcontroller circuit principle the heart of this project is the 8051 microcontroller.
This article describes you how to control the dc motor using at89c51 controller or any variant of 8051 microcontroller. Speed control of dc motor by pwm in proteus simulation. Speed control of a dc motor using microcontroller 8051 bachelor of technology in electrical and electronics engineering gokaraju rangaraju institutes of engineering and technology jntu hyderabad. When the dc motor is switched on, it takes certain time to reach the full speed. The servo motors are usually used in commercial and industrial applications. A well designed 8051 dc motor system has essentially two parts.