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用于“能源之星”商業(yè)及住宅LED照明應(yīng)用的離線高功率因數(shù)TRIAC可調(diào)光LED驅(qū)動(dòng)器

文件來(lái)源:安森美半導(dǎo)體
文件類型:pdf
更新時(shí)間:2011-04-21
文件大?。?06K
This reference document describes a built-and-tested, GreenPoint solution for a 13 W nominal constant current power factor corrected offline LED driver. The power supply design is built around ON Semiconductor’s NCL30000 critical conduction mode fixed on-time flyback controller. The secondary side regulates a 350 mA constant current capable of driving a string of 1 W phosphor converted “white” LEDs. This reference design is optimized for driving 12 LEDs at 350 mA but the design is adaptable to accommodate a range of 4 to 15 LEDs in series with minor component modifications. The maximum power capability of this specific design is 15 W. The design is flexible and robust with output open and short circuit protection as well as optional thermal shutdown in the event that the operating temperature is exceeded.
本文鏈接:http://m.1151434.com/power-dl/583
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