Dc dc motor in robotics pdf speed controller circuit using NE555. Are you familiar with all the applications of 555 timer circuits? If not, we can help you.
We all know that for better understanding, the best source is an authenticated book on the subject. We have reviewed them in detail. A simple DC motor controller circuit using NE555 is shown here. Many DC motor speed control circuits have been published here but this is the first one using NE555 timer IC.
In addition to controlling the motors speed its direction of rotation can be also changed using this circuit. A PWM circuit based on timer NE555 is the heart of this circuit.
NE555 is wired as an astable multivibrator whose duty cycle can be adjusted by varying the POT R1. The output of IC1 is coupled to the base of transistor Q1 which drives the motor according to the PWM signal available at its base.