Power Factor Control is required in many electronic applications around the world, as global regulations are pushing to improve the overall efficiency of the utility grid. Cirrus Logic has unveiled the industry’s first digital power factor correction (PFC) controller ICs said to surpass analog PFCs on performance and price.
The new CS1500 and CS1600 are digitally controlled, discontinuous conduction mode (DCM), active power factor correction ICs intended for use in power supplies rated up to 300 watts. The CS1500 is designed to address power supplies such as laptop adapters, digital TVs and PC power, while the CS1600 targets electronic lighting ballasts.
Cirrus Logic claims the new CS1500 and CS1600 improve energy efficiency across all load conditions, with a distinct performance advantage in light load conditions. A patent-pending digital noise shaping technology enables reduced-sized EMI filters, cutting the need for additional components and circuitry. Overall the parts are said to reduce external component count by more than 30 percent.
The CS1500 and CS1600 are available in an 8-pin package and are priced at $.30 each in high volumes.
