摘要
针对乘客信息系统的特殊使用环境,为了提高系统可靠性,将直流不间断电源应用到系统中。该直流不间断电源采用专用充电管理芯片对铅酸电池进行充电,并采用控制芯片Atmega128L和工控机通信的方式,在外部供电切断时,通知并维持工控机正常启动和关机。该设计有一定实用价值。
For improving performance , a DC UPS is designed for passenger information system. This UPS uses special IC to make charging for lead - acid battery. The Atmega128L is the microprocessor in this system. When the external power is cut off, the microprocessor can communicate with the IPC to starting or shutdown. The test result showed that the UPS has certain practicality.
出处
《电声技术》
2014年第8期27-30,共4页
Audio Engineering
