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19V, 3A universal input AC/DC adaptor using NCP1271

Posted: 23 Oct 2008 ?? ?Print Version ?Bookmark and Share

Keywords:PWM? switching controller? AC/DC adaptor? application note?

The NCP1271 is one of the latest fixed-frequency current-mode PWM switching controllers with adjustable Soft-Skip standby operation for low-level audible noise, integrated high-voltage startup for saving standby power, timer based overload fault detection and internal latch protection features.

This application note presents an example circuit using the NCP1271 (65kHz version) in a flyback topology. The design steps and subsequent measurements are also included.

View the PDF document for more information.





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