LED lighting. MR16

13/11/2013 08:39

Overall, warehouses, garages and other lighting electricity pay a large commercial enterprises to LED lighting speed much faster , because the cost savings is obvious. With alternative lighting solutions as LED lights purchase costs down , there will be more consumers are willing to LED lighting.  MR16

 

A new solution T8 Tube

 

Fortunately, there is a new solution for Linear Technology's LT3799, can solve all of these offline LED driver problem. The device is a Isolated with Active PFC Flyback LED Controller , specifically for the 90VAC ~ 265VAC universal input range designed to drive the LED . LT3799 in critical conduction mode operation minimizes the size of external transformer . It is ideally suited for driving power to hundreds of watts from a variety of 4W LED applications . Up to 20W LED driver circuit as a whole in Figure 2. This particular circuit can TRIAC dimming , and can 90VAC ~ 265VAC universal input range of LED current up to 1A , while achieving over 86 % efficiency ( see Figure 3 ) . Slight change of external components , this circuit can be further optimized to at 120VAC, 240VAC or 377VAC or common AC input almost any circumstances.

LED Flexi

LT3799 use a single-stage design, the LED drive circuit ( including the EMI filter ) only 40 external components , so that the solution is simple , compact footprint, and cost-effective . 20W circuit in Figure 2, the total size of only 30mm x 75mm, height of only 30mm, thus becoming a wide variety of LED applications an ideal choice.