Adjustable speed drives (ASDs) or variable speed drives (VSDs), also called variable frequency drives (VFDs), typically control a motor's velocity or torque output. Most adjustable frequency drives ...

Microchip’s AT9933 is a variable frequency PWM controller IC, designed to control a LED lamp driver using a low-noise boost-buck topology. The device is ideally used for LED lamps and other LED ...

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

An 8-bit microcontroller can implement the essential functions of an electronic ballast for HID or fluorescent lamps, while enabling many desirable features. Today's design engineers are faced with ...