Speed control of dc motor using pwm technique pdf merge

Dc motor speed control using pic microcontroller pwm method. Direction of rotation of dc motor is changed by initiating an interrupt signal to the microcontroller using push switches. Pdf microcontroller based speed control of a dc motor. The modulation of pulse width is obtained using pulse width generator in atmega16. Speed control of brushless dc motor drive employing hard. Pdf speed control of dc motor by using pwm technique. The complete controller for bldc is developed using tms 320f240 digital signal processor, which has the special features for digital motor. Speed control of a dc motor using pwm video matlab. It works on the principle of lorentz force by which the current carrying conductor in a magnetic field experiences a force hence the conductor moves on the direction of force called lorentz force. This tutorial is about dc motor speed control with pic microcontroller using pwm method.

Dc motor speed controller witrh pwm am using a 555 timer to do it, dont forget to hit the like button and subscribe for more videos. A more efficient way to proceed is by using pulse width modulation technique to control the speed of our dc motor. Pdf microcontroller based dc motor speed control using. 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. Armature voltage is varied by pulse width modulation pwm of input dc voltage by using the developed microcontrollers program. Here is a sample program written to control a motor via the mosfet diagram of page 11 in onedirection only. This paper presents the speed control of brushless dc motor drive employing hard chopping pwm technique using tms320f240 digital signal processor. The motor voltage and revolutions per minutes rpm obtained at different duty cycle rates. There are many application of dc motors, where we need a variable speed of dc motor. Speed control of dc motor using pulse width modulation, 555. Hence, if voltage across motor terminal is varied, then speed can also be varied. Pulsewidth modulation pwm or dutycycle variation methods are commonly used in speed control of dc motors. In the example below, pin 3 is set as digital output mode.

This paper presents speed control of dc motor using an 8051 series microcontroller. Bldc is widely used because of its high mechanical power density, simplicity and cost effectiveness. The frequency of magnetic reversal where, p number of poles n speed in rpm steinmetz formula the steinmetz formula is for the calculation of hysteresis loss. Speed control of dc motor using pwm a dc motor is an electromechanical device that converts direct current into mechanical energy by means of rotation of a shaft. Speed control of dc motor using microcontroller semantic. The optimization of dc motor uses requires speed control that can be done using pulse width modulation pwm 5. The second reason is if we want to use any devices like microcontrollers or any other digital equipment for automating our dc motor speed control, then this method cannot be used. For example dc motor have a applications in electrics cars, trucks and aircraft. This paper presents a dc motor speed controller system using pwm technique. The pwm duty cycle is used to vary the speed of the motor by controlling the motor terminal voltage. Veermata jijabai technological institute 50 speed control of dc motor by using pwm technique where. The speed of dc motor is directly proportional to the voltage applied across its terminals.