基于晶体管开关的车用灯光驱动电路设计与优化

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中图分类号：U463.65 文献标识码：A 文章编号：1003-8639（2025）09-0141-02

Designand Optimization of AutomotiveLightingDrive Circuit Basedon Transistor Switchin;

Zhang Mingying （ShaoxingVocational Education Center，Shaoxing312ooo，China）

【Abstract】Transistor switch drive technology provides an efficient solution for automotive lighting circuits. This paper designs a drive circuit based on a hybrid architecture of MOSFET and BJT.Through experimental verification，the switch response time of this circuit reaches 0.8μs ，the power consumptionis reduced by 25% ，and it maintains stable operation within the range of -40 to 125°C . The actual test verification range reaches 85qC ，meeting the requirements of the AEC-Q1oo Grade 1 automotive electronics standard.

【Key Words】 transistor switching;automotive lighting;drive circuit; MOSFET;power optimization

1晶体管开关器件特性分析与选型

晶体管开关器件在车用灯光驱动系统中承担核心控制功能。（剩余2218字）