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22/11/2013 10:33
the designer might want to set up a safety function, even LED may exceed the safe operating area MR16 under conditions of work, and has always been able to provide light output. For such cases , LED current versus temperature curve will be shown in the example in...
22/11/2013 10:33
Figure 2LM3424 thermal foldback circuit
LED Bulb
Using LM3424 LED driver current control and execution heat has several advantages . First , with most of the complex does not need the external components (e.g., a plurality of operational amplifiers ) , as these have been integrated in...
22/11/2013 10:32
SEPIC converter efficiency may not be as buck or boost converter topology has many advantages LED Downlight but . In addition to a step-up and step-down function , the other electronic systems particularly suitable for automotive applications has the advantage CSEPIC capacitor...
21/11/2013 09:41
Because traffic lights in city traffic important role , every year a large number of traffic lights need MR16 to be updated , and thus leads to a relatively large market , after all, is also conducive to high profits LED production and design of the company's development , speaking for...
21/11/2013 09:40
3 digital control techniques can be combined to control. Because any number can be easily converted into a PWM signal .
LED Downlight
4 , even in a wide range dimming, flicker does not occur . Because it would not change the working conditions of a constant current source ( step-up ratio or...
21/11/2013 09:39
According to the calculation of color temperature and brightness , the design of the red LED current 23mA, green 55mA, blue 40mA. Each unit separately driven , the constant current drive mode , the driver chip from Texas Instruments (T1) of the TLC5941.
LED Lighting china
3 it can be seen...
20/11/2013 09:23
Of course , LED cooling components and CPU cooling similar, both by the heat sink, heat pipe , LED Lighting china fan and thermal interface material composed of air-cooled module -based, of course, hot water is one of the strategies . In the most popular large-size LED TV backlight module , the 40...
20/11/2013 09:06
This is the end-user to see the overall cost of the target , for the adoption of LED lighting MR16 solutions , which has become the most common and nothing to hinder performance improvements . In 2011 the United States Department of Energy Solid State Lighting Market...
20/11/2013 09:06
Low- power LED lighting trends
LED Bulb
2010 global sales of high-brightness LED is estimated at $ 890 million , is expected from 2010 to 2015 , average annual growth rate (CAGR) of 39% , showing that the market has great potential . But for the LED driver , the main trend is associated with...
19/11/2013 09:33
First, the brightness and color gamut selection
LED Downlight
LED light source While traditional outdoor LED display has long reached the K -class lumens DLP applications but is still generally stay in this range 600-800 lumens ( brightness mode ) , so the use of the environment ambient light to...
