多媒体车载终端电源系统的功耗管理设计

设计了一款稳定、高效的多媒体车载终端的电源系统。通过分析多媒体车载终端的功能模块供电系统，提出系统电源架构设计方案，实现了各个模块的电源分配与管理。针对车载终端的恶劣工作环境，设计相应的保护和抗干扰措施。对电源系统各个模块进行了器件选型和电路设计，并提出了系统功耗管理和省电流程实现方法。

Power Management Design of MuIti-media VehicIe TerminaI

A stable and efficient power supply system for the multi-media vehicle terminal is design.Through the analysis of most function modules of the multi-media vehicle terminal,the scheme of the power system architecture is introduced,and the power distribution and management of each module are realized.According to the bad working environment of the vehicle terminal,some corresponding protec-tion and anti-j amming measures are designed.The way of devices selection and circuit design in every module are introduced,and the methods of the system power management and power saving are proposed.