湖南科技大学本科生课程设计（论文）摘要电流检测有多种方法,最通用的方法是采用阻性分流器、互感器或霍尔传感器。阻性分流器工作时与负载串联,无法进行隔离测量;互感器只适用于50Hz工频交流的测量;霍尔检测技术综合了互感器和分流器技术的所有优点,同时又克服了互感器和分流器的不足,采用一只霍尔电流电压传感器/变送器模块检测元件,既可以检测交流,也可以检测直流,甚至可以检测瞬态峰值,同时又能实现主电路回路和电子控制电路的隔离,因而是替代互感器和分流器的新一代产品。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，而且对功能、稳定性等各项指标也提出了更高的要求。直流稳压电源一般由电源变压器、整流滤波电路及稳压电路所组成。变压器把交流电压变为所需要的低压电交流电。整流器把交流电变为直流电。经过滤波后，稳压器再把不稳定的直流电压变为稳定的直流电压输出。本设计主要采用直流稳压构成集成稳压电路，经过、变压、整流、滤波，稳压过程将220V交流电，变为稳定的直流电。本次试验通过对直流可调电流源的设计实训，能够熟练应用分立元件完成小功率直流稳压电源的电路设计、参数运算和器件选择，使其满足试验所需要求。同时正确掌握直流稳压电源的制作与测试方法，为今后的实际工作打下良好的基础。【关键字】霍尔传感器稳压器直流稳压电源AbstractCurrentdetectionhavemanykindsofmethods,themostcommonmethodistouseimpedanceshunt,transformerorhallsensor.Impedanceshuntworkwithloadseries,unabletoisolationmeasurement;TransformerisonlyintheHzpowerfrequencyacmeasurement;Halldetectiontechnologyintegratedthetransformerandshunttechnologyalladvantages,atthesametime,andovercomethetransformerandtheshortageoftheshunt,usingahallcurrentvoltagesensor/transmittermoduledetectingelement,whichcandetectcommunication,alsocandetectdc,evencandetecttransientpeak,andatthesametimecanrealizemaincircuitloopandelectroniccontrolcircuitofisolation,itisalternativetransformerandshuntofanewgenerationofproducts.Powersupplyforelectricalandelectronicequipmentindispensableenergysupplyparts,growingdemand,butalsotofunction,thestabilityoftheindicatorsalsoputforwardhigherrequest.Dcregulatedpowersupplyiscomposedofpowertransformer,rectifierfiltercircuitandvoltageregulatorcircuitcomposed.Theacvoltagetransformertoneedlowvoltageelectricalternatingcurrent(ac).Rectifierthealternatingcurrent(ac)intodirectcurrent.Afterfiltering,voltageregulatorandunstabledcvoltageintoastabledcvoltageoutput.Thisdesignmainlyadoptsdcvoltageconstituteintegratedvoltageregulatorcircuit,after,transformer,rectifier,filter,voltage220valternatingcurrent(ac),theprocesswillbecomestabledc,.Thetestthroughtheadjustabledccurrentsourcedesignpractice,canskilledapplicationofdiscreteelementcompletesmallpowerdcregulatedpowersupp