Many offline-powered systems today need a low-voltage bias supply to power its control circuitry and intelligence. In some cases, bias supply outputs are not required to be isolated from the AC mains, ...

The post examines reverse-phase dimming, also known as trailing-edge dimming, commonly used in modern lighting systems.

The 19th century battle between Nikolai Tesla’s alternating current (AC) and Thomas Edison’s direct current (DC) technologies had an undisputed winner. The vast majority of the world’s transmission ...

These variable speed drives (VSDs) were developed to avoid the additional equipment and maintenance requirements associated ...

Diacs and triacs are often used for control of ac lines and are seeing increasing use in Internet-enabled line switches. However, the traditional approach of modeling them using bipolar transistors ...