基于FPGA的便携式仪器电源系统研究

Research on power system of portable instruments based on FPGA

锂电池组的电源管理系统是保证便携式仪器安全,稳定运行的关键。为了延长电池的使用寿命,保证其连续工作时间,设计了一种以FPGA为控制核心的电源管理系统。实现了对电池充放电保护,开关机控制,电池剩余电量检测以及高效、低纹波的输出方案。制作了PCB板并下载程序,连接电池进行了实验。通过实验证明了电池管理系统的有效性。该系统可为便携式仪器的电源管理系统设计提供参考。

Power management of the lithium battery pack is the key to ensure the safe and steady working of portable instruments. A power management system based on FPGA was designed to prolong the life and continuous operating time of the battery. The charge and discharge process of the battery was protected, the starting up and power off process of instruments was controlled, the battery remaining capacity was detected simultaneously and the high-efficiency low ripple power supply solution was presented. The PCB board was made and the program was downloaded to do the test with the battery. The effectiveness of the battery management system was proved by the test. The power management system of portable instruments can refer to this system.