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图4.NCP3065升压演示板应用电路

材料清单(BOM):



图5.NCP3065降压演示板应用电路(2)

材料清单(BOM):


1-5W MR16 LED驱动GreenPoin解决方案

This reference document describes a built and tested, GreenPoint® solution for a 1 to 5WLED driver for MR16 LED replacement. The circuit is proposed for driving HB--LED (high--brightness LED) in a variety of lighting applications but is configured in size and features for an MR16 LED replacement. Configurations like this are found in 12 Vac / 12 Vdc track lighting applications, automotive applications, and low voltage AC landscaping applications as well as task lighting such as under--cabinet lights and desk lamps that might be powered from standard off--the―shelf Vac wall adapters.

The circuit is based around the ON Semiconductor NCP3065 operating at ~150 kHz in a non―isolated configuration. A key consideration in this design was achieving flat current regulation across input line variation and output voltage variation with a 12 Vac input. It also features an auto--detect circuit in combination with the NCP3065 which allows input from a 12 Vdc or 12 Vac supply and still maintain targeted output current regulation.

图6.1-5W MR16 LED驱动方框图

图7.1-5W MR16 LED驱动器外形图

图8.1-5W MR16 LED驱动器电路图

材料清单:

1 2

关键词： 1-5W 驱动 解决方案 LED MR16 Semi NCP3065 On