Abstract：Objective To design a set of safety power supply for hospital central oxygen supply
monitoring system. Methods Through the safety circuit design, circuits such as over-current protection,
overvoltage protection, optical coupling isolation feedback control circuit, remote monitoring interface
were designed, which guarantee protection functions of accurate current limiting protection, over voltage,
overload and remote monitoring. Results The safe power supply can work stably for a long continuous
time, and the output ripple is less than 1%. The over-current protection and overload protection circuits
can work properly to guarantee the safety of the power supply. Conclusion The safe power supply can
offer power to the hospital central oxygen supply monitoring system properly, and can work stably in
the condition of oxygen leakage. Even if malfunction happens, it will not cause fire. This design can
significantly improve the machine safety coefficient and the practical value of the hospital center oxygen
supply monitoring system, helping to improve intelligent management level of hospital central oxygen
supply monitoring system.
周德强，颜乐先，苌飞霸，
魏安海，李姝颖，尹军. 基于医院中心供氧监控系统的安全电源设计[J]. 中国医疗设备, 2016, 31(12): 120-123.
ZHOU De-qiang, YAN Le-xian,
CHANG Fei-ba, WEI An-hai,
LI Shu-ying, YIN Jun. Design of Safety Power Supply Based on Hospital Central Oxygen Supply
Monitoring System. China Medical Devices, 2016, 31(12): 120-123.
