使用LED驅動評估板的優化改造照明設計

　　照明設計師最好能明智地使用現成的評估板或模塊，它們既是照明項目的基礎，又有助于加速設計周期。在某些情況下，利用數據本身可能不足以幫助你前進，尤其是設計挑戰，例如，如果他們缺乏所有數據需要的供電照明系統如LED改造燈泡和照明應用選擇最佳的LED驅動方案。

　　一些照明設計師面臨的試驗包括實現調光能力，實現高效率，選擇正確的設計權衡，同時試圖擠壓到一個小空間的所有的電子產品。這些參考設計套件或評估板的重點是使它更容易解決這些任務，所以工程師可以快速實現LED驅動器集成電路到他們的設計。

　　我們將看看一些評估板的LED改造燈泡的項目，包括A19、PAR30 / 38、PAR20、GU10、和燭臺樣式的燈泡。一系列的參考設計套件和評估板可從公司如集成，向Digi-Key網站Power Integrations德克薩斯文書。

　　“LED lighting designs are really a balancing act，” said Andrew Smith， product marketing manager at Power Integrations. “There are multiple different features and requirements in different geographical regions. If this is your first time trying to manage all of these competing variables， it is extremely daunting.”

　　The role of a design evaluation board or reference design kit is to provide a design that is 75 percent completed， added Smith. “It makes it a lot easier to establish what you really need. You might have to modify a reference design， but you won‘t have to design it from scratch.”

　　Smith noted that Power Integrations’ reference design boards or kits offer a working， production-ready board. The idea is to give a designer something that looks like a real solution， which can be modified. The company‘s reference design kits include the board， schematics， Gerber files， complete bill of materials， blank boards to build a modified version of the circuit， and extra ICs to evaluate other devices in the same series， which typically provide a little more or less power. The included engineering test report also explains why specific trade-offs were made in the design.