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PFC Controller Delivers Over 96% Efficiency

Tue, 03/31/2009 - 7:37am
Fairchild Semiconductor debuts its Model FAN9612 boundary-conduction mode (BCM) interleaving power factor correction (PFC) controller that provides over 96% power conversion efficiency for AC/DC power supplies. Applications include power supplies for digital TVs, desktop and entry-level server computers, front-end telecom systems and industrial power systems rated from 100 to 1,000 W. Interleaving extends the power range of BCM control while ripple current cancellation minimizes high peak currents. By interleaving and keeping two power stages precisely at 180° out-of-phase timing under all operating conditions, the controller lowers conduction losses. These energy-conservation benefits are integral in helping customers meet the latest ENERGY STAR and Climate Savers Computing Initiative requirements. A small system footprint reduces the overall cost of the solution, and it simplifies design without compromising on protection features.

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