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Motor Controllers

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Simple H-Bridge PWM Driver Circuit using IC 555

Last updated on 17 September 2024 by Admin-Lavi Leave a Comment

A Simple H-bridge PWM driver circuit that makes use of a IC 555 integrated circuit is used to regulate the direction and speed of a DC motor. In this circuit the important part is driver transistors are not used, instead the load which is a motor is driven directly through the two IC 555s. Circuit […]

Filed Under: Motor Controllers

Simple Motor PWM Speed Controller Circuit using IC 555

Last updated on 17 September 2024 by Admin-Lavi Leave a Comment

Forget fiddling with voltage knobs, this clever circuit uses a 555 chip and a technique called PWM Pulse Width Modulation to control your DC motors speed. By rapidly switching the motors power on and off in short bursts we can effectively adjust the average voltage, it experiences ultimately controlling its speed. It is like a […]

Filed Under: Motor Controllers

PWM Motor Speed Control Circuit using Two Transistors

Last updated on 29 July 2024 by Admin-Lavi Leave a Comment

Resistors are helpful for many things, but they are not the best choice for changing motor speed smoothly. That is where a clever circuit with just two transistors comes in. This circuit acts like a fancy dimmer switch for your motor. By turning a knob called a potentiometer, you control the power going to the […]

Filed Under: Motor Controllers, Transistor Circuits

Simple Servo Motor Controller Circuit

Last updated on 17 August 2024 by Admin-Lavi Leave a Comment

Imagine a special motor that can turn to very exact positions, this circuit is its brain. It tells the motor how far to turn by sending tiny bursts of electricity. The length of these bursts tells the motor how far to move. The circuit listens to what you tell it to do like turning a […]

Filed Under: Motor Controllers

Simple AC Drill Speed Controller Circuit

Last updated on 12 August 2024 by Admin-Lavi Leave a Comment

Take control of your drill. An AC drill speed controller circuit is like a cruise control for your power drill. It lets you fine tune the speed of the motor giving you perfect control for any project. This is especially helpful for delicate tasks like woodworking, metalworking or anything where precision matters. Instead of going […]

Filed Under: Motor Controllers

Adjustable DC Motor Speed Controller Circuit with Reverse Forward Facility

Last updated on 23 April 2025 by Admin-Lavi Leave a Comment

The construction of a circuit for controlling a DC motors speed and direction is discussed in this article. A common chip known as the IC 555 and an special switch are used. You may change the speed by adjusting the amount of power that is sent to the motor PWM using a knob. You can […]

Filed Under: Motor Controllers

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