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. The modulation of pulse width is obtained using cd4010b Schmitt trigger and rectifier 1n4140.
There are several methods for controlling the speed of DC motors. One simple method is to add series resistance using a rheostat. As considerable power is consumed in the rheostat, this method is not economical. Another method is to use a series switch that can be closed or opened rapidly. This type of control is termed as chopper control. The PWM based chopper circuit smoothly controls the speed of general purpose DC motors.
To get desired modulation of pulse width as output, we have used Schmitt trigger cd40106b and rectifier 1n4010b with regulator as the source of varying output.
Description:
Supervised By:
Mr. Rakibul Hasan Sagor
Assistant Professor
Department of Electrical And Electronics Engineering (EEE),
Islamic University of Technology(IUT),
Gazipur-1704, Bangladesh.
