Introduction to Pulse Width Modulation (PWM)

Pulse Width Modulation (PWM) is a technique of creating high speed digital pulses that have a variable amount of ON time vs OFF time within each pulse. This results in the ability to control a final load in a fashion that is similar to analog control resolution with digital control outputs. The Power-io HDD family of products is capable of achieving PWM speeds up to 15 kHz.

The following article by Michael Barr provides an overview of the technology.
This article, the contents and graphics are provided by an independent author and they are NOT the property of Power-io.