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50 W Four-Output Internal Power Supply for Set Top Box

Click to Download	Reference Design Document 389 KB (19 Pages) February 2008

ON Semiconductor This reference document describes a built-and-tested GreenPoint solution for a 40 W (40 W nominal power, 50 W peak power) set-top box (STB) power supply, built around ON Semiconductor's NCP1308 current-mode controller. The paper presents the results of various secondary rectification and regulation techniques that were used to find the highest practical efficiency scheme for the power supply.

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ON Semiconductor


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