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We are looking for a AC-DC controller for 90W/12V power adapter. Can you please advise which IC is most popular?
The NCP1651 Single Stage Power Factor Controller provides a low cost, low component count solution for isolated AC--DC converters with mid--high output voltage requirements. The NCP1651 eases the task of meeting the IEC1000--3--2 harmonic requirements for converters in the range of 50W -- 250 W. The NCP1651 drives a flyback converter topology to operate in continuous/discontinuous mode and programs the average input current to follow the line voltage in order to provide unity power factor. By using average current mode control CCM algorithm, the NCP1651 can help provide excellent power factor while limiting the peak primary current. Also, the fixed frequency operation eases the input filter design.
Answered by: ON Semiconductor
2013-09-26 10:15:05.176