The circuit in the figure provides three levels of speed control for a dc motor, using a PC’s parallel port (LPT1). A C++ program performs the control functions by allowing the signals from the ...

You can divide the world of electronic motor drives into two categories: ac and dc. A motor drive controls the speed, torque, direction, and resulting horsepower of a motor. A dc drive typically ...

A motor drive controls the speed, torque, direction, and resulting horsepower of a motor. Dc drives typically control a shunt-wound dc motor, which has separate armature and field circuits.

This microcontroller-based control circuit adjusts the speed of a small permanent-magnet DC motor to one of four speeds as selected by a pair of photosensors.

En route to getting the off-the-peg DC-51 motor speed controller to better suit my small milling machine, I had a go at working out what the circuit is.

DC motor speed controller BMD-20DIN ver.2 Smart Motor Devices Smart Motor Devices Smart Motor Devices has improved the controller BMD-20DIN by expanding ways to control speed of DC motor – new ...

ECEA 5341 Motors and Motor Control Circuits ECEA 5341 Motors and Motor Control Circuits 2nd course in the Embedding Sensors and Motors Specialization. Instructors: Jay Mendelson, MSME, Lecturer & ...

Electric-motor control requires electronic circuits, which until a few years ago were made with discrete components because of the voltages and currents involved.