A Simple Solenoid Driver Circuit is a setup to control solenoid using low voltage signal. Solenoids are like magnets and they change electric power into movement. They need more voltage than small digital parts like microcontrollers can give. The driver works like a switch and it lets small signal turn big current ON and OFF […]
Motor Controllers
H-Bridge PWM Driver Circuit using IC 555
H-Bridge PWM Driver Circuit using IC 555 controls DC motor speed and direction. In this circuit no driver transistors are used. Motor connect direct to two IC 555. Motor speed and direction can change. We can only use two IC 555 to control the motor. This circuit is easy to make and is used for […]
Motor PWM Speed Controller Circuit using IC 555
No need to change voltage knob. This smart Motor PWM Speed Controller Circuit using IC 555 to control DC motor speed. It turn motor power ON and OFF very fast so motor gets average voltage and its speed changes. Like dimmer switch but for motor. Circuit Working: Parts List: Category Description Quantity Resistors 470Ω, 1k […]
PWM Motor Speed Control Circuit using Two Transistors
Resistors can help in some ways but they are not good for smoothly changing motor speed. That is why a smart PWM Motor Speed Control Circuit using Two Transistors is used. It works like a dimmer switch for the motor. We turn a knob like a potentiometer to change how much power the transistors get. […]
Simple Servo Motor Controller Circuit
Think about a motor which is very special. It can turn to be very exact, this small circuit is like a brain. It tells motor how much to turn using small electric pulses. Long pulse motor move more then the short pulse motor move less. We can say it what to do like move robot […]
AC Drill Speed Controller Circuit
Now one can control its own drill. AC Drill Speed Controller Circuit is like cruise control but for drill. It helps one to change motor speed so one can work better for any job. Very good when one is doing soft work like wood or metal but need careful hand. There is no need for […]





