A brushless-DC motor is common in ceiling fan and pan-tilt-zoom (PTZ) camera designs. But you can’t use the same brushless-DC motor solution for both of these end products. A ceiling fan driver ...

Historically, impact wrenches were predominantly pneumatic and required investing in an air compressor. But these days, improvements in battery-powered impact wrench technology makes them a viable—and ...

Torque converters appear to be a bunch of mysterious whirlwind motion inside a spinning shell that transmits an engine's power to the transmission and rear wheels. Although they seem complex, torque ...

In a speed controller, the motor’s speed (or velocity) is being controlled. There is an element that detects speed, whether it be a tachometer or some sort of encoder. This monitoring element provides ...

This article was updated Feb. 28, 2023. It was originally published March 1, 2000. Planetary gears can supply high levels of torque and high-speed reduction. They are also relatively compact compared ...

A synchronous and synchronous motors are the two main categories of ac motors. The induction motor is a common form of asynchronous motor and is basically an ac transformer with a rotating secondary.