Four challenges for led design
Due to the difference of the LED in the physical characteristics of the original device, the concept of the production of light source system is very different from the traditional design, the need for more technical and professional support.
1.Power conversion: LED original device unless special production methods are generally DC drive components, and general life power source for AC AC power, AC wall socket must be for the application to DC, or the choice of AC type LED in the LED components, effectively the AC power conversion needs of low-voltage DC power source for the LED.
2.The drive control circuit: LED drivers need electronic circuit auxiliary, has reached the goal of high efficiency, while the general incandescent lamp dimmer design to achieve in the emerging LED light source, it must be adjusted through the DC power supply control, electronic circuit complexity compared to conventional light sources are more complex.
3.Heat treatment: the original device LED dot light source, light-emitting temperatures will focus on a single point, in addition to the components of the original device for thermally enhanced design to achieve the cooling of autologous, but the heat source there will be over-concentrated in the lighting dot position the question as to test the processing capacity of the junction temperature control, which must be used with master / passive cooling design to extend lamp life.
4.Optics: the LED light source is a compact and efficient point-like light source, although with a wide color output control effect, energy efficiency is also an excellent performance, but after living with the requirements of the lighting needs a uniform and stable continuous optical lighting, LED excessive concentration of point light source that must be through the optics or lens, the light guide material approximation of the traditional lamp light performance.
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