开关磁阻电机IGBT尖峰电压

讨论一下开关磁阻电机的桥式拓扑结构中，IGBT的尖峰电压用RCD吸收回路三项的话用三个吸收回路比较好，还是只用一项好呢？那几种吸收回路，CRC那种更适合开关磁阻电机

参数不对了用多少都不行。

。

参数对了也许很简单。

。

恩，现在我们搞开关磁阻电机，每次IGBT都烧，很纠结啊好比我关断时候，尖峰立马产生，吸收回路如果吸收的慢，尖峰是不是立马就把IGBT烧掉，如果快的还好，但是为了快，又怕尖峰吸收的不彻底，现在上到200V出现堵转，很纠结啊

CurrentlyIamseekingApplicationEngineer,AsiaPacificformyclient–ANewYorkStockExchangelistedcompanywithgreatfinancialreporteachyearandithascollaboratedwithcustomerstosolvetheirtoughestchallengesanddelivermaterialtechnologieswiththecriticalperformanceandreliabilitytheydemand.Andourclienthasfourteenfactoriesinworldwide,ownhuman-basedmanagement.ThispersonwillcoverAisa(China/Korea/Taiwan/Singapore)andvisitGermanCuramik！30%APBusinessTravel

Ashiringmanagerproposed,candidateswhoareKnow-howindesignofpowerelectronicmodulesandtherelatedkeyrequirementsforthermalresistance(Rth),current,voltage,transistorsanddiodes

andcandidateswhoareR&D/processorqualityengineerfromIGBTpackagingcompanieswhicharetheircustomersortechnicalengineerfromcompetitorsandsuppliersisqualified.

CompanyInformation:OurclientisanAmericanspecialtymaterialscompanywithoveronehundredyear’shistory.Itisagloballeadingmanufacturerofspecialtymaterialssuchaspolymers,fillersandhighperformanceelastomersforavarietyofindustries.

JobTitle:ApplicationEngineer,AsiaPacific

Div/Corp:PES/Curamik

Reportto:DirectorMarketingPES

Location:Shanghai/Suzhou/Shenzhen/Korean/Hongkong/Singapore/Taiwanetc.

JobPurpose:

•TheapplicationengineerforAPisresponsibleforthetechnicalsupportforcuramikproductsfortheAsiancustomersmainlyinJapan,ChinaandKorea

EssentialFunctions:

•Know-howindesignofpowerelectronicmodulesandtherelatedkeyrequirementsforthermalresistance(Rth),current,voltage,transistorsanddiodes.

•Technicalsupportofcustomers:

Maininterfacetocustomerfortechnicalquestionsfornewprojects/products;responsibleforthetechnicalcooperationwiththecustomerincludingthecuramikinternalcoordination(“projectlead”)

Preparationandexecutionoftechnicaltrainings/workshopsforthecustomerandtheregionalsalesorganization

Supportoftheoffergenerationbyverificationofthetechnicalspecification

Generationanddistribution(incoordinationwiththeHQ)oftechnical/applicationorienteddocumenation.-50%

•Supportofthequalitydepartmentbycustomercomplaintsifatechnicalchangecancontributetothesolution.-10%

•Generateandextendthecompetencefordefinedtargetapplications(e.g.industry,automotive,renewableenergy)toensuretheunderstandingoffuturetrends,competitivesituation…ascontributiontotheproductroadmap.Generationofapplicationnotes.-15%

•Bepartofthetechnicalmarketing/applicationengineeringteamandinthisrespect:

supportthegenerationofdocumentation/trainingsmaterialforcustomers

Competitionanalysisonapplication/technologylevelanddeliverinputsforrelatedmeasures

Identificationvonfeaturesandproductsthatwillgeneratevaluetoourcustomers.-25%

PreferredEducation&Experience:

•Deepunderstandingintheusageofceramicsubstratesinthepowermoduleindustry

•Applicationknow-howinoneormoreofthetargetapplications

•Engineeringlevelintheareaofjoiningtechnology,electronicormaterialsscience

•Experienceinworkingwithcustomersinaninternationalenvironmentandwithdifferentculturalbackground

•ExperienceinmethodslikeAPQP,PPAP,FMEA,QFD,SPC

•UnderstandingofDINISO9001,ISO/TS16949,DINISO14001andcountryspecificregulations(withfocusonAsia)

•FluentEnglishinwrittenandspoken

sophia.yan@consultcareer.com.cn

如果主电路结构设计合理尖峰不会太大。

吸收电路一般的用一个电容就可以

楼主你好，现在还在做开关磁阻电机控制器吗

电-磁振子组合型超宽带UWB天线的特性研究
从电-磁组合型天线的物理结构分析入手，结合实验和数值模拟，采用频域和时域测量相结合的方法，对电-磁组合型天线的特性进行了研究。



1 理论分析


1.1 天线结构

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