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 ...

Variable speed drives (VSDs), sometimes also known as variable frequency drives, are electronic devices used to regulate the speed of an ac induction motor. Electric motors consume approximately 25% ...

Comparators are subject to input offset errors that can be either systematic or layout related. Two applications of comparators in a PWM controller are detecting when there is no current in the ...