高频开关电源的设计毕业论文（设计）

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1、邵阳学院毕业设计摘要通信电源是电信网的能源，其供电质量的好坏直接关系到整个电信网的畅通，本课题首先分析了近年来国内外高频通信开关电源的发展状况，在理论分析和电路实验的基础上，开发出了一种新型的高频通信开关电源（交流配电模块、直流配电模块、4只高频开关整流模块和监控模块置于同一机架内），该电源优化了电路的主要参数，设计了相移脉宽调制零电压开关谐振（PS-ZVSPWM）全桥变换器电路和以集成控制器UC3875芯片为核心的控制电路，实现了功率开关管的零电压开通和近似零电压关断，研制出高效率（达93%）、高稳定度(±0.5%）、高可靠性、

2、低电磁干扰的高频开关整流模块。同时文中还提到了以MCS-51单片机电路为核心的的电源监控模块与监控设计思路。保证了整机能够安全可靠工作。关键词：高频开关电源；相移脉宽调制；零电压开关ABSTRACTThecorrespondencepowerswitchisthetelecommunicationnetworkenergy,itspowersupplyqualityqualityrelatesdirectlytotheentiretelecommunicationnetworkunimpededness,thistopichasf

3、irstanalyzedtherecentyearsdomesticandforeigncommunicationsswitchingpowersupplydevelopmentcondition,testsinthetheoreticalanalysisandtheelectriccircuitinthe56邵阳学院毕业设计foundation,developedonekindofnewcommunicationswitchingpowersupply(alternating-currentdistributionmodule,

4、directcurrentpowerdistributionmodule,4highfrequencyswitchesrectificationmoduleandmonitoringmoduleputsinidenticalrack),thispowersourceoptimizedtheelectriccircuitmainparameter,hasdesignedthephase-shiftpulse-durationmodulationzeropotentialswitchresonance(PS-ZVSPWM)theent

5、irebridgeconverterelectriccircuitandtakeintegratesthecontrollerUC3875chipasthecorecontrolcircuit,Realizedthepowerswitchingvalvezeropotentialtoclearwiththeapproximatezeropotentialshutsoff,developsthehighefficiency(toreach93%),thehighstability(±0.5%),redundantreliable,t

6、helowelectronmageticinterferencehighfrequencyswitchrectificationmodule.AtthesametimeinthearticlealsoproposedbasedonMCS-51isthecorepowersourcemonitoringmoduleandmonitoringdesignmentality.Hasguaranteedentiremachinesafereliablework.Keywords:Highfrequencyswitchingpower;Ph

7、ase-ShiftingPWMZVS；ZeroVoltageSwitching56邵阳学院毕业设计目录1绪论·······················11.1开关电源的发展及国外现状·········11.2国内通信电源的发展及现状···············41.3研究内容··················52电路原理方案分析和选择··················72.1高频开关整流模块············72.2交流配电模块············122.3直流配电模块············132.4监控模块

8、··············143主要电路设计···············163.1高频开关整流模块主电路设计······163.2高频开关整流模块控制电路的设计·····233.3监控模块的设计····················284零电