摘要
现在车联网被广泛应用,但是车辆供电系统输出功率小,纹波大,电压随转速变化波动,影响4G LET模块及整体系统的稳定性。本文提出了一种由车载点烟器电源向瞬间大电流的4G通信模组供电的低纹波稳定供电的设计方案。该方案已在工程中得到了实际应用。
In recent years,more and more internet of vehicles applications are used,however,the vehicle power supplied by system has tiny output power,large ripple and unstable voltage with speed of engine,which may affect the stability of the 4G LET module and system operation.In the paper,a low ripple stable power supply scheme is proposed,that supplies power from the car cigarette lighter power supply to the instantaneous high current 4G communication module.The program has been put into practical use in engineering,indicating that the program is effective and reliable.
作者
王鸣山
Wang Mingshan(Research Institute of Physical and Chemical Engineering of Nuclear Industry,Tianjin 300180,China)
出处
《单片机与嵌入式系统应用》
2019年第11期47-52,共6页
Microcontrollers & Embedded Systems
