Full analysis of the LED lamps 15 key design issues

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A semiconductor lighting applications


1, heat


2, the lack of standards, mixed products


3, the price and design quality, and ultimately consumers select the downlight led lighting, lack of confidence


4, semiconductor lighting and traditional lighting in electrical design are very different, the traditional lighting companies need experience / skill accumulation process


5, we are bullish on the market, but also the scale


Features:


1, by adjusting the precision constant current chip, ensuring consistent LED brightness, chroma, and a module for downstream customers provides a standard, customized, reliable, high-quality products;


Old and new lighting design manufacturers, not to be too complex electrical design, just in the external simple circuit design coupled with traditional constant voltage power supply to work, is the fastest and most reliable way;


(3) to solve large-scale LED lighting market on the amount of technology and quality.


Second, the thermal design


1, the shortest th ermal spread path, reduce the heat conduction resistance;


2, increasing the mutual conduction area, increase the speed of thermal spread;


3, a reasonable calculation of the design of cooling area;


And effective use of the heat capacity effect.


The output drive voltage selector:


20W less than the electric drive 48V or so more appropriate;


Large power mains-driven output voltage of about 36V is the most appropriate;


Most of the off-line lighting is 12V and 24V.


Features:


Load the appropriate drive voltage value based on the series and parallel security considerations, and try to unify the voltage to reduce the cost of power supply design specifications;


Based on safety regulations, product design to meet the certification requirements, flow peak exceed 42.4Vac of or DC more than 60Vdc voltage;


From the technical and quality problems to solve large-scale on the amount of the high bay lighting lighting market to consider.


To design products, first to determine who the LED package structure; next consider how to adapt these packages; have few opportunities we have chosen the optical structure is built on top of these packages; a lot of creativity can not play .