The Development And Design On Digital Emergency Power Supply

With the development of the society and the improvement of people's living conditions, the high-powered power supply has become an indispensable equipment in our production and our life in order to avoid the bad effect of a sudden power cut on people's daily life, and the economic losses in the event of power interruption.The diesel-oiled dynamotors, the traditional power supply,which have defects including smoke and noise pollution, hidden trouble of fire,ect. have been replaced by the UPS(Uninterruptible Power Systems) and EPS(Emergency Powers Supply). It is important to research the high-powered Emergency Power Supply.This article, has analyzed the necessity and importance of high-powered power supply on many kinds of occasions according to some examples, and, has analyzed the characteristics and functions of domestic and overseas power supplies on the basis of my research on the actuality of the application of domestic and overseas power supplies and the actuality of the study of counter power supply and its application technology. According to the analysis of the function of power supply and the consumers'technological target for power supply, I have designed a two-leveled digital power supply. The control level will accomplish the real time control over the power supply, and the management level will be in charge of the power supply.This article is written to explain the design of the main circuit and its control of the charger with high-frequency switch and the inverter. I introduced the C8051F020 SCM, which can produce PWM signal and have control over the charger with high-frequency switch, and at the meantime, I brought forward the idea of producing driving signal SPWM wave by connecting SPWM wave-form-producing implement and SCM, and achieving the function of the checking and alarming of the system. keyboard-demonstration connection electric circuit design of the system administration center realizes by the Intel 8279 keyboards/monitors, And has used RTL8019AS controller realization ethernet communication, the monolithic integrated circuit through the ethernet connection, will gather the data message will transmit to the long-distance server.