MR16 LED灯方案？你怎么看？ efficiency, features, solution, 解决方案, LED灯

MR16灯广泛应用于商场、装饰照明和其他一些应用场所。传统MR16灯的潜在应用所受到的局限性表现在高能耗、低效率、高热量等，另外灯丝在处理不当或振动的情况下很容易被损坏，这也是一大缺点。低电压卤素灯——LEDs，由于其具备卤素灯所不具备的高效率，环保，安全，寿命长，耐冲击等优点而得到了广泛普及。
下面介绍两种LED MR16灯解决方案，大家可以就这两种方案进行讨论！


 

Solution 1: The LED lamp driven by mains power. This solution features high efficiency and supports voltage of 90V ~ 265V AC without the need for traditional transformers. The mains power is rectified, and then stepped down by a DC-DC converter circuit into the required output current and voltage. The output current is controlled by a PWM controller (Pulse-Width Modulation controller) working on the basis of primary-side feedback or secondary feedback.
Solution 2: The substitute solution for traditional halogen lamps. This solution integrates LED driver circuit, LED lighting source, LED heat sink and LED lens into a LED module to replace halogen lamp bulbs. Because traditional halogen lamps run off a 12V AC power supply, a rectifier and a filter should be added before driver circuit to convert the 12V AC output of transformer to stable DC voltage. Then this DC voltage can be connected to LED driver circuit to provide a constant current to LEDs.



讨论问题：
1、你对MR16 LED灯了解多少？有没有进行过过相关产品的设计？
2、MR16 LED灯与传统照明灯相比拥有哪些特点？
3、以上两方案的核心是什么？各自的优缺点是什么？
4、你认为MR16在驱动的设计上需要注意什么？

 若你有好的LED应用方案，希望你也能共享出来，供大家一块来讨论！！！


                                                                                               
                                                                                                                                                                                                [最后修改于2012-12-03 17:44]