The Research On Wire Network Power Supply

With the development of network and Community antenna television, and the popularization of Subscription Television, it is becoming so important to provide Uninterruptable Power Supply for them,and we need more and more wire network special power supply.Combined with the latest development of modern technology of power electronics and SCM, this paper studied and developed the wire network special power supply, which was based on MSP430 of TI company, the fifth MOSFET that based on new technics and the Power Line Carrier - PLC based on PL2101.The keystone of the project is to improve the dependability of the system and the realization of intelligentize. The system includes main power part , measure par, Power Line Carrierand microcomputer monitoring part. With the full digital method, the controlling and debugging of the UPS is easier: the control strategy and parameter can be modified easily; the technology of fault supervision, self-diagnosis, err correction and communication also can be realized with ease, too. Moreover, the number of component is greatly reduced, so the system faults caused by components reduced accordingly and system reliability is improved.The research is an instructive attempt and exploration, based on references to a lot of information and the latest technology on the intelligentized network power development. The system has achieved the anticipative target and requirement through testing and debugging.