The use of power-factor correction (PFC) is becoming more common in the design of power converters. Their use is now being mandated by some countries and will continue to expand as line power-carrying ...

L4985A/B and L4986A/B power-factor correction (PFC) boost converters from ST integrate 800V startup circuitry and additional valuable proprietary features. The built-in high-voltage startup capability ...

STMicroelectronics’ L4985A/B and L4986A/B power-factor correction (PFC) boost converters look to simplify design and enhance flexibility by integrating 800V startup circuitry and additional valuable ...

• Electrical power sources supply two types of power to inductive loads: real power in kW and reactive power in VAR. • Power-factor correction circuits can be either an individual style or of the bank ...

Poor power factor associated with electronic power conversion equipment is caused by nonlinear circuit elements. In most off-line power supplies, the ac/dc front end consists of a bridge rectifier ...

This engineering report describes a TRIAC dimmable, non-isolated buck-boost LED driver designed to drive a nominal LED voltage string of 38 V at 260 mA from an input voltage range of 90 VAC to 132 VAC ...

CARSON CITY, NV--(Marketwired - Apr 9, 2015) - Ametherm today released a new UL-approved circuit protection thermistor that is the industry's first to offer a 277 V rating optimized for applications ...

These advanced PFC boost controller ICs, which manage startup scenarios, minimize the add-on components needed to complete circuit function. Experienced designers know that for many system ...