In the past, TP PFC designs required the use of an MCU which added to the complexity of the design and the need for coding. However, with the NCP1681, only a few external components and no coding need be added for a complete TP PFC solution, saving time, money and space.
Commenting on the new version,
The NCP1681 can be configured to operate in either continuous fixed-frequency (CCM) conduction mode or multi-mode operation, where the controller naturally switches between CCM and critical conduction (CrM) mode for optimal performance at all power levels .
The new NCP1681 high-power TP PFC controller integrates established control algorithms with new features to provide a high-performance, cost-effective TP PFC solution. Demanding efficiency standards such as “80Plus” or “CoC Tier 2”, which require high efficiency over a wide load range, can also be met.
The new NCP1681 is suitable for higher power supplies ranging from 350 W to several kilowatts that operate on a universal mains input (90 – 265 Vac), meeting a wide range of applications including servers, high performance computing , telecommunications, industry and OLED TV . At high levels, NCP1681 TP PFC solutions will achieve near 99% efficiency.
The NCP1681 will be featured alongside the award-winning lower power (
(C) Electronic news edition 2022, source