推挽式开关电源设计.docx
洛 阳 理 工 学 院
毕业设计(论文)
题目 _推挽式开关电源的设计
2013年5月30 日
洛阳理工学院毕业设计(论文)
推挽式直流电源开关的设计摘要
电源是实现电能变换和功率传递的主要设备。在信息时代,农业、能源、交通运输、信息、国防、教育等领域的迅猛发展,对电源产业提出了更多、更高的要求、如节能、节电、节材、缩体、减重、环保、可靠、安全等。这就迫使电源工作者在电源研发过程中不断探索,寻求各种相关技术,做出最好的电源产品,以满足各行各业的要求。开关电源是一种新型电源设备,较之于传统的线性电源,其技术含量高,耗能低,使用方便,并取得了较好的经济效益。开关电源具有功耗小、效率高、稳压范围宽、体积小、等突出优点,在通信设备、数控装置、仪器仪表、影音设备、家用电器等电子电路中得到了广泛应用。本文首先介绍开关电源的基本原理,而后介绍广泛应用于开关电源的双端输出驱动器UC3524,并以驱动器UC3524为基础,通过打印机电源电路,讲述推挽式开关电源工作原理。
关键词:电能变换,开关电源,UC3524,推挽式开关电源
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洛阳理工学院毕业设计(论文)
Designofapush-pullDCswitchingpowersupplyABSTRACT
Poweristoachievepowerconversionandpowertransmissionmajorequipment.Inthe information age, the rapid development of agriculture, energy,transportation,information,nationaldefense,educationandotherfields,forthepowerindustrymademore,higherrequirements,suchasenergysaving,energysaving,materialsaving,reducedbodyweightloss,environmentalprotection,reliable,safetyetc..Thishasforcedthepowerworkerscontinuetoexploreinthepowerdevelopmentprocess,toseekavarietyofrelatedtechnology,thepowertomakethebestproducts,tomeettherequirementsofallwalksoflife.Switchingpowersupplyisanewtypeofpowersupplyequipment,comparedtotraditionallinearpowersupply,hightechnologicalcontent,lowenergyconsumption,easytouse,andhasachievedgoodeconomicbenefit.Switchingpowersupplywithlowpowerconsumption,highefficiency,widevoltagerange,smallsize,andotheradvantages,iswidelyusedincommunicationequipment,numericalcontrolequipment,instrumentation,audioandvideoequipment, householdappliancesandotherelectroniccircuits.Thispaperfirstintroducesthebasicprincipleofswitchingpowersupply,thenintroducedualoutputdriverUC3524iswidelyusedinswitchingpowersupply,andtodriveUC3524asthefoundation,throughtheprinterpowersupplycircuit,ontheworkingprincipleofpush-pullswitchingpowersupply.
KEYWORDS: transfor