Instead of commutating the armature current using brushes, electronic. The center taps of these windings are connected to the 12v supply. Speed control of dc motor using microcontroller by using pwm. Stepper motor control free 8085 microprocessor projects. The dc motor is very difficult to contr ol unlike the stepper motor, which can be controlled by giving the appropriate control word. Following things should be taken into account while designing the. In this paper, the micrprocessorbased control of dc motor is considered. Speed control of dc motor using microcontroller arduino.
There are many applications of dc motors, where we need a variable speed of dc motor. Dc motors need much more current than a microcontroller can provide, so it needs separate drivers. Jul 20, 2015 introduction the aim of developing this project is to control the speed of dc motor. Embedded system of dc motor closed loop speed control based. Simple microprocessor based motor speed controller. Learning objective 3 interfacing of a to d converter with 8085 microprocessor the objective of chapter is to interface the 8085 microprocessor interfaced and programmable peripheral interface ic 8255 with dac, adc, stepper motor and temperature controller with the help of latches and decoder. Speed control of dc motor using microcontroller free download as powerpoint presentation. The time for the back cycle of the intel 8085 a2 is 200 ns. Interfacing stepper motor with 8086 microprocessor trainer kit. In this tutorial we will see how to control the speed of a dc motor using pulse width modulation. Such as traffic light control, temperature control, stepper motor control, etc. Lecture note on microprocessor and microcontroller theory and. Can get you started though, you need a system that lets you know when your motors output shaft has gone around once.
Pwm based dc motor speed control using microcontroller. Intel 8085 8bit microprocessor intel 8085 is an 8bit, nmos microprocessor. Also includes some projects that have been worked upon and also episodes to embedded system podcast. Dc motor speed control using pic microcontroller pwm method. For example, it has applications in electric cars, trucks, and aircraft. Oct 29, 2018 pwm based dc motor speed control using microcontroller circuit design. The supply current to the motor cannot be switched quickly due to the counter emf and energy stored in the. Circuit of microcontrollerbased dc motor speed controller d c motor speed controllers are very useful for controlling the motion of robotic and industrial automation systems. To achieve the speed control an electronic technique called pulse width modulation is used which generates high and low pulses.
Speed control of brushless dc motor using microcontroller. 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. Motor shown in the circuit has two phases, with centertap winding. A well designed 8051 dc motor system has essentially two parts. Dc motor speed control using microprocessor technique intoduction. Abstractan mc68000, 16bit microprocessor system was. This article describes you how to control the dc motor using at89c51 controller or any variant of 8051 microcontroller. Stepper motor control using microcontroller at89c51 various techniques can be used to control the speed of an ac or dc motor, such as using the phaselocked. Here the dc motor is controlled by the microprocessor 8085. Microprocessorbased digital controller for dc motor speed.
Microprocessor based digital pid controller for speed control. In our robotics applications we may have to control the speed of the dc motor. Intel 8085 8bit microprocessor shrimati indira gandhi. Microprocessor based digital pid controller for speed. Dec 28, 2012 interfacing dc motor with 8086 microprocessor trainer kit. Its data bus width is 8bit and address bus width is 16bit, thus it can address 216 64 kb of memory. This ppt shows that the process to control the speed of a dc motor using microcontroller. Firstly an 8051 with the required software to control the motor and secondly a suitable driver circuit. For both the motor speed control system and the positioning servo possible digital control laws are discussed. Microprocessorbased control of dc motors springerlink. How to design a system using microprocessor 8085 to find the. A software based feed forward control system of dc motor has been considered to calculate the load torque by tsuyoshi hanamoto 5. Different dc motors need different voltages and operating high voltage motor from a low voltage controller is not a feasible option. This tutorial is about dc motor speed control with a pic microcontroller using the pwm method.
The brushless dc motor is actually a permanent magnet ac motor whose torque current characteristics mimic the dc motor. Interfacing dc motor to 8051 forms an essential part in designing embedded robotic projects. The main advantage in using a dc motor is that the speed torque relationship can be varied to almost any useful form. Address bus the address bus is a group of 16 lines.
An onoff switch is provided on the waist harness to control the start and stop of the hand movement and is connected to the 8051 microcontroller to control the motor movement. Arockia edwin xavier thiagarajar college of engineering,electrical and electronic engineering madurai,tamil nadu email. This paper is mainly concerned on dc motor speed control system by using microcontroller pic 16f877a. Motor this paper presents a simple scheme for implementing the speed control of d. The 8085 performs these operations using three sets of communication lines called buses the address bus, the data bus and the control bus. Speed control of a dc motor using microcontroller 8051 a project report submitted by s. Microprocessor based motor speed controller pdf microprocessor based speed controi of dc motor fed from semiconverter supply. This is a good electronic project report on speed control of dc motor using microcontroller by using pwm.
In this system, a micro controller is interfaced with a lcd, keypad and dc motor driver. In this paper, a microprocessor based control system for a dc motor, which uses standard hardware, is described. A 12v dc motor is connected to the l298n motor driver module at its out1 and out2 pins. Through the keyboard the operator can issue commands to control the system. The controller presented here uses the pulsewidth modulation pwm technique. The dc motor is very difficult to control unlike the stepper motor, which can be controlled by. 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. Pdf microcontroller based dc motor speed control using. Pdf microcontroller based dc motor speed control using pwm. The circuit consists of one 8051 microcontroller and its supporting circuitry related to oscillator and reset, l298n motor driver module, a dc motor and a few push buttons. Nov 03, 2011 the blog talks about variety of topics on embedded system, 8085 microprocessor, 8051 microcontroller, arm architecture, c2000 architecture, c28x, avr and many many more. Rohit naik 07241a0247 in partial fulfillment for the award of the degree of bachelor of technology in electrical and electronics engineering gokaraju rangaraju. This paper reports a microcontroller based control system to change the speed and direction of rotation of dc motor.
It is a 40 pin c package fabricated on a single lsi chip. It produces an analog voltage proportional to the speed of the motor. Microcontrollerbased dc motor speed controller kumar fig. Request pdf microprocessor based digital pid controller for speed control of d. The synthesis of controller parameters is carried out by the.
Interfacing dc motor to 8051 microcontroller using at89s51. A motor is another type of actuator, that creates motion. The center taps of these windings are connected to. Programming the pic16f877a microcontroller for speed control. 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. Structures corresponding to the digital system for dc motor speed control and digital positioning servomechanism using dc motor are proposed. Dc motor speed control using microprocessor technique. The stepper motor rotates in steps in response to the applied signals. The main aim of this project is to design a traffic light controller using 8085 microprocessor. The microcontroller is programmed to control the 12v dc motor movement. The modulation of pulse width is obtained using pulse width generator in atmega16 microcontroller.
Microcontroller based speed control of a dc motor using pwm. The micro controller is used for controlling the dc motor by producing the pwm pulses. Multiple operating modes of thyristor converter has been studied using three phase fully controlled dc motor motor drive system by ahms ula 4. Interfacing dc motor with 8051 microcontroller using l293d. We will describe how to control motors with an arduino, but these principles can be used to control any type of actuator. The objective of developing this project is to control the speed of dc motor. Dc motor speed control using pwm with pic microcontroller. Microprocessor based digital controller for dc motor speed control m k refai discusses the procedure for implementing microprocessor based pid process control algorithms, presenting the system hardware and pid algorithm for the illustrated case of dc motor control the effectiveness of microprocessor based systems for realizing digital random logic controllers is illustrated by the design of a.
The pic16f72 was used in 15 in the control method for dc motor armature voltage control that involves the pulse width modulation pwm based on the hbridge motor circuit. How to control speed of dc motor using microprocessor 8085. Alok nath singh ephii, iitr is having a discussion here about practical aspects of interfacing dc motor with 8085 kit. Jan 26, 20 i already posted about interfacing dc motor with pic microcontroller. This article shows how to interface a dc motor to an 8051 microcontroller. Aug 06, 2014 doc speed control of a dc motor using micro controller 8051 1. There is a problem when the direction of rotation of large dc motor, operating at high speed, is suddenly changed. Interfacing dc motor with 8086 microprocessor trainer kit. Armature voltage is varied by pulse width modulation pwm of input dc voltage. The main advantage in using a dc motor is that the speed torque relationship can be varied to. The adaptive fuzzy controller designed and implemented in 1 is an alternative method of using microcontroller to control the speed of a dc motor.
329 1477 379 1419 117 614 232 537 597 844 585 1382 1302 1297 1214 216 1465 928 1478 1393 158 1532 140 891 137 601 1055 843 26 1252 616 359 373 718 88 972 740 1353 808 1176 91 821