Dc Motor Speed Control Circuit. When the wiper arm of potmeter vr1 is in top position capacitor c1 charges through r1 r2 and d1 and produces a pulse train at the output of ic1 with long negative and short positive pulse widths. Dc motor speed control circuit.
A circuit which enables a user to linearly control the speed of a connected motor by rotating an attached potentiometer is called a motor speed controller circuit. Then check out this outstanding single chip pwm motor speed controller circuit that will give you a complete 360 degrees of continuously varying motor speed control right from zero to maximum. The dc motor speed control circuit is primarily a 555 ic based pwm pulse width modulation circuit developed to get variable voltage over constant voltage.
In this 555 timer project i have shown how to make speed control of dc motor using pwm with a 555 timer ic circuit.
A simple dc motor controller circuit using ne555 is shown here. The speed is controlled through an externally applied varying dc voltage source. Dc motor speed control circuit. You can control the speed of any dc motors like 775 or 555 motors with this 555 timer circuit.
