48 V系统电源转换方案对比分析  

Comparison Analysis on 48 V System Power Conversion Schemes

作　　者：吕佳文 赵目龙 于继成 廖波 高航 LüJiawen;Zhao Mulong;Yu Jicheng;Liao Bo;Gao Hang(Global R&D Center,China FAW Corporation Limited,Changchun 130013)

机构地区：[1]中国第一汽车股份有限公司研发总院,长春130013

出　　处：《汽车文摘》2025年第2期40-43,共4页Automotive Digest

摘　　要：为了提高汽车稳定性与可靠性,保障汽车安全高效运行,对比分析了5种代表性48 V电源系统方案:PWM控制器电源方案、开关电源降压转换器电源方案、开关电源控制器电源方案、LLC变压器电源方案和入口防护电源方案。从集成度、复杂度、成本等多方面深入对以上方案进行对比,系统地分析了其优缺点和应用场景,以满足不同使用环境下不同车辆功能要求,为汽车研发人员根据实际产品应用需求选择合适的电源转换方案与车型进行匹配提供参考。To enhance the stability and reliability of automobiles while ensuring their safe and efficient operation,a comparative analysis is conducted on 5 representative 48 V power system solutions:PWM controller,switching power supply buck converter,switching power supply controller,LLC transformer,and entry protector power supply scheme.The solutions are thoroughly compared in terms of integration,complexity,cost,and other relevant factors.A systematic evaluation of their advantages,disadvantages,and application scenarios is performed to address the functional requirements of different vehicles in various operating environments.This analysis serves as a valuable reference for automotive researchers and developers in selecting the appropriate power conversion scheme and aligning it with vehicle models based on actual product application needs.

关 键 词：48 V系统 电源方案 集成度 带载能力 

分 类 号：U469.722[机械工程—车辆工程]