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1、可调式直流稳压电源的设计摘要随着现代科技的不断发展，各种各样的电气、电子设备已经广泛的应用于日常工作、科研、学习等各个方面。电源作为电气、电子设备必不可少的能源供应部件，需求日益增加，而且对电源的功能、稳定性等各项指标也提出了更高的要求。对电源的研究和开发已经成为新技术、新设备开发的重要环节，在推动科技发展中起着重要作用。21世纪，科学技术的发展日新月异，科技的进步带动了电源技术的发展，现代控制设备的性能和结构发生了翻天覆地的变化。我们已经进入了高速发展的信息时代。本设计采用LM317三端稳压芯片做稳压器件设计直流稳压电源
2、，通过相关知识计算出各电路中各个器件的参数，使电路性能达到设计要求中等各项指标。并且可以通过用单片机控制调节输出电压，使其在功能上具有一定智能化。本设计采用新型STC12C5628AD单片机,集成A/D转换器，直接采集输出电压和流入交流网侧电流信号，然后通过单片机对送来的电压、电流进行计算，并将此结果送入数码管,并显示出来。单片机控制电路,具有设计电路简单,制作容易,操作方便,显示直观,性能可靠,功能完善等特点。关键词：直流稳压电源；LM317三端稳压芯片稳压电路；单片机；智能化44ThedesignofAdjustabl
3、e DCpowersupplyAbstractWiththedevelopmentofmodernscienceallkindsofelectricalandelectronicequipmenthasbeenwidelyusedindailywork,scientificresearch,learningandotheraspects.Electricalpoweris,aselectric,electronicequipment,essentialpartsoftheenergysupply,demandhasincr
4、eased,andthefunction,stabilityandallkindsofindicatorsofelectricalpoweralsoareputforwardhigherrequest.Theresearchanddevelopmentofelectricalpowerhasbecometheimportantlinkofanewtechnology,newequipmentdevelopmentandplaysanimportantroleinpromotingthedevelopmentofscienc
5、eandtechnology.The21stcentury,therapiddevelopmentofscienceandtechnology,advancesintechnologyledtothedevelopmentofmeasurementtechnology,moderncontrolequipmentperformanceandstructureofearth-shakingchangeshavetakenplace.Wehaveenteredarapiddevelopmentoftheinformationa
6、ge.ThisdesigndesignsDCPowerSupplywiththeLM317three-terminalregulatorchipregulatorcircuit,throughtherelatedknowledgecalculatedparametersofeachdeviceinthecircuit,makingthecircuitperformancemeetallkindsofindicatorsofthedesignrequirements.Andbyusingsinglechipmicrocomp
7、utercontroltoadjustoutputvoltage,makesitsintelligentonthefunction.ThisdesignusesthenewSTC12C5628ADsinglechipmicrocomputer,integratingA/Dconverter,directlycollectsoutputvoltageandflowintoexchangenetworksidecurrentsignal,andthenthroughthesinglechipmicrocomputercalcu
8、latedthevoltage,current,andtheresultsintodigitaltube,andshowsit.Single-chipmicrocomputercontrol44circuit,whichhassimplecircuitdesign,easy-making,conveni
