如何選擇合適的LED照明電源

　　隨著高亮度LED的擴散，為商業和家用照明提供替換燈，電源供應解決方案也會出現同樣的（如果不是更大的）擴散。從幾十個廠家的數百種產品，它就變成了一個問題：如何使輸入/輸出電壓和輸出電流/額定功率的所有排列的感覺，說的機械尺寸/終端類型和調光，許多其他功能沒有遠程控制和保護電路，提供。本文旨在解開不同類型LED電源的奧秘，以及它們如何運作，以簡化選擇過程。

　　有助于了解各種解決方案，本文將參考一些容易從Digi-Key提供的產品，包括交流/直流艾默生網絡能源公司和崔轉換器模塊、降壓模塊和降壓-升壓模塊電源，升壓板的建議，從TDK Lambda和Microsemi。

　　Understand your LED lighting application first

　　In order to determine the type of power supply best suited for a particular lighting project， it is first necessary to understand the nature of the application， i.e. what form the LED lighting will take and where and how it will be deployed. There is no unique segmentation， but the ‘where’ usually relates to the broad market， while the ‘what’ or ‘how’ is more about the function or characteristic of the lighting. Typical market segments for lighting are retail， industrial， and architectural along with the terms ‘indoor’， covering commercial and residential use， and ‘outdoor’ for street lighting and building illumination. Already there is an overlap in these descriptions， so it is probably more helpful to explore a few examples in a little more detail to appreciate what they may require from a power supply.