EMC Problems and EMC Testing Technology for LED Automotive Lighting SystemXinya Tu Instituteof EMC & Electronic Measurement Everfineinstrument Co.,Ltd #669Bingkang Road, Hangzhou, China emc@emfine.cn Hui Mao Instituteof EMC & Electronic Measurement Everfineinstrument Co.,Ltd #669Bingkang Road, Hangzhou, China emc@emfine.cn
Yijun Hu Everfineinstrument Co.,Ltd #669Bingkang Road, Hangzhou, China emc@emfine.cn
Abstract—The automotive lighting system isvery important for the safety and comfortof driving. With the rapid development of light sources and electronic technology, avariety of new LED light source is being widely used in automotive lightingsystem.It is the trend of the future developmentof automotive lighting applications. Although a variety of new LED light sourceapplicationsgreatly improves the performance of automotivelighting system, the application of new LED light source will bring newelectromagnetic compatibility (EMC) problems. For the reason that the LED light sourcecontains the LED drive power,light regulating circuit and other electronic systems, which need to adapt to other automotiveelectronic system. The EMC properties of LEDlight source can affect safety, reliability of the vehicle, so the EMC testing technology of LED automotive lighting systemis becoming more and more important. According tothe EMC problems of LED automotive lightingsystem, this paperinvestigates theEMC testing standards and testing technology.Thetest items cover the radio frequency (RF) radiated and conducted disturbances,transient interference immunity, power variation immunity, etc. Finally, thefuture development of EMC about the LED automotive lighting system wasdescribed.
Keywords-LED automotive lighting system;EMC (Electromagnetic compatibility); EMI(Electromagnetic interference); EMS (Electromagnetic susceptibility).
LED汽车照明系统的电磁兼容问题及检测技术
涂辛雅 EMC&电子测量研究所 杭州远方仪器有限公司 杭州市滨康路669号 emc@emfine.cn
毛慧 EMC&电子测量研究所 杭州远方仪器有限公司 杭州市滨康路669号 emc@emfine.cn 胡一军 杭州远方仪器有限公司 杭州市滨康路669号 emc@emfine.cn
摘要—汽车照明系统对于汽车驾驶安全性和舒适性至关重要。随着光源和电子技术的飞速发展，各种新型LED光源，正被广泛应用在汽车照明系统中，将成为未来汽车照明应用发展的趋势。虽然各种LED新型光源的应用，大大提高了汽车照明系统的性能，但是由于LED新型光源包含了LED驱动电源、调光电路等电子系统，需要与其它汽车电子系统相互适应，因此新型LED车灯的应用将会带来新的电磁兼容（EMC）问题。新型LED光源EMC性能的优劣已影响到整车的安全性、可靠性，使得LED汽车照明系统的EMC测试日趋重要。本文针对目前市场上LED汽车照明系统的EMC问题，阐述了相应的EMC测试标准和测试技术，测试项目覆盖射频和传导骚扰，瞬态抗扰度，电压波动等。最后对LED汽车照明系统EMC未来发展前景做了展望。 关键字：LED汽车照明，电磁兼容(EMC)，电磁骚扰(EMI)，电磁抗扰度（EMS） .
|