洛阳理工学院毕业设计（论文）PAGE\*MERGEFORMAT41基于UC3524的逆变电源设计摘要逆变电源是一种采用电力电子技术进行电能变幻的装置，主要应用与银行、通信、医院、金融等重要机构。设计内容包括逆变电路原理分析、微机控制电路设计、主电路设计、主要开关器件驱动电路设计，系统抗干扰设计，保护设计，主电路设计采用开关频率高导通压降低功耗低的绝缘栅双极晶体管IGBT。逆变电源输入输出都经过变压器进行电气隔离，使整个电路系统与外接电网和负载完全电气隔离。电源保护电路主要有过流保护、过压保护、短路保护，通过将主电路中的电压电流信号反馈到控制电路中，实现系统自我保护功能。为保证输出稳定的交流电压，对交流输出电压进行取样，经过采样电路处理反馈到控制电路中进行分析，使输出电压幅值稳定在规定范围内。关键词：逆变电源，IGBT，微机控制，保护电路UC3524INVERTERBASEDPOWERSUPPLYDESIGNEDABSTRACTPowerinverterisanelectricalenergyusingpowerelectronicstechnologychangingdevice,themainapplicationandbanking,telecommunications,hospitals,financialandotherimportantinstitutions.Designelementsincludeinvertercircuitanalysis,computercontrolcircuitdesign,themaincircuitdesign,themainswitchingdevicedrivecircuitdesign,systemanti-jammingdesign,protectiondesign,themaincircuitdesignusinghighswitchingfrequencytoreducepowerconsumptionlowconductionvoltageinsulatedgatebipolartransistorIGBT.Inverterinputandoutputareelectricallyisolatedthroughthetransformer,sothatthewholecircuitsystemwithexternalpowergridandloadcompleteelectricalisolation.Mainpowersupplyprotectioncircuitovercurrentprotection,overvoltageprotection,shortcircuitprotection,throughthemaincircuitvoltageandcurrentsignalisfedtothecontrolcircuit,toachieveself-protectionsystem.InordertoensurestableoutputACvoltage,theACoutputvoltageissampled,thesamplingcircuitafterprocessingthefeedbacktothecontrolcircuitforanalysis,theamplitudeoftheoutputvoltagewithinthespecifiedstability.KERWORD：Powerinverter，IGBT，protectcurrent，shortcircuitprotection,目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc358012425"前言PAGEREF_Toc358012425\h1HYPERLINK\l"_Toc358012426"第1章逆变电源设计方案论证PAGEREF_Toc358012426\h3HYPERLINK\l"_Toc358012427"1.1设计背景PAGEREF_Toc358012427\h3HYPERLINK\l"_Toc358012428"1.1.1基于UC3524逆变电源的设计思路PAGEREF_Toc358012428\h3HYPERLINK\l"_Toc358012429"1.1.2逆变电源的工作原理PAGEREF_Toc358012429\h4HYPERLINK\l"_Toc358012430"1.2逆变电源的逆变电路及控制方案PAGEREF_Toc358012430\h4HYPERLIN