毕业设计论文 LED在汽车照明领域的应用与电路设计

摘 要汽车光源在照明的领域中占有极其重要的地位，汽车照明的产量占整个照明光源总产量的10％左右。LED作为一种新型的固态光源，正在逐渐被应用在汽车的照明系统中。LED是继白炽灯、荧光灯、高强度气体放

I 毕业设计,LED在汽车照明领域的应用与电路设计 摘要 汽车光源在照明的领域中占有极其重要的地位，汽车照明的产量占整个照明光源总 10LED 产量的％左右。作为一种新型的固态光源，正在逐渐被应用在汽车的照明系统中。 LEDLED 是继白炽灯、荧光灯、高强度气体放电灯之后的第四代光源。具有结构简单、 无延迟、节能效果显著、重量轻、安全性能好、抗震、无污染、免维护和寿命长等特征。 LED 已成为钨丝灯、卤素灯的必然取代产品，将成为汽车的第四代照明光源。在通用照 LEDLEDLED 明技术尚未成熟前，车用市场是最被看好的市场。本文从在汽车照明系统 LEDLED 中应用的可行性入手，分析了在汽车低照度及高照度照明中的应用，对应用于 LED 汽车照明系统存在的问题进行了分析，并设计了一个驱动电路。 LEDLEDProtel99 ，汽车照明，刹车灯，驱动电路， 关键词： ABSTRACT Automotive light sources have an extremely important position in the field of the lighting. LED is anew type of solid-state light sources. LED is gradually being used in the automotive lighting systems. LED has alot of advantages such as simple structurewithout delay energy-savinglight weightsafetyearthquakepollution-free ，，，，，， maintenance-free and long life. LED has replaced the tungsten lamp and the halogen lamps. LED is becoming the fourth generation lighting of automotive lighting. Before the LEDQ lighting technology is general becomes mature the vehicle market is the most optimistic about the LED market. This article analyzes LED in the low light intensity and the high light intensity application from the feasibility that LED applies in the automobile lighting system. And analysis the question that LED applied in the automobile lighting systemAnd Idesign aLED driver circuit. 。 Key words: LEDautomobile lightingbrake lightLED driverProtel99 ，，，，