汽车LED 照明系统的驱动电路设计与光效提升研究

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中图分类号：U463.65 文献标识码：A 文章编号：1003-8639（2026）01-0105-03

Design of Automotive LED Lighting System Driver Circuits and Strategies for Optical Efficiency Enhancement

Shi Congcong'， Xu Zanyang² （1.Zhongyuan InstituteofScience and Technology，Xuchang 45140o，China; 2.Xj Schindler，Xuchang 4510o0，China）

【Abstract】This paper focuses on the engineering implementation of automotive LED lighting systems，centering on two mainaspects： thepractical designofdrivercircuitsandthesystematicpathways for improving opticaleficiency.It defines reproducibleboundaryconditions for vehicle-gradeinput stages，reverse polarity protection，and filtering networks on test benches.Forconstant currentand fedback loops，acomplete processis proposed，including Kelvinrouting for sampling resistors，iterative compensation network tuning，andNVM-based factory calibration.Regarding integrated EMC anddiagnostic strategies，the studyoutlinesarectification sequence involving PCB layer partitioning，single-point grounding，andsource-levelsuppression.Opticaleficiencyenhancementisaddresseddirectlybytargeting threeprmary loss domains：optical pathattenuation，electro-thermal disipation，and spectral/colorimetricinstability.Theapproach details specificengineering actionssuchas material selection，assemblycleanlinesscontrol，DOE-basedopticalfinetuning，compresionrate verificationofthermal interfaces，durabilityvalidationofheat pipebrackets，and spectralcutoff coating inspection.

【Key words】LED；driver circuit；constant current control;optical effciency enhancement；electro-thermal synergy

1汽车LED照明系统的组成

汽车LED照明系统是指车内外光源均采用LED技术，用于实现车辆外部照明与内部环境照明的系统。（剩余4111字）