During my 50-plus year career as a General Motors and ASE Master Technician, vocational educator and vehicle owner, I have repaired or replaced countless heating, air conditioning, and ventilation ...

Speed, torque, and horsepower are three inter-related parameters in motor control. The speed of a motor, measured in revolutions per minute (rpm), defines a motor's ability to spin at a rate per unit ...

This circuit will allow you to control the speed of an AC motor, for example an electric drill. The way that this circuit works is as follows. The bridge rectifier produces dc voltage from the 120vac ...