PCB RELAY INFORMATION.doc
上传人:sy****28 上传时间:2024-09-13 格式:DOC 页数:2 大小:28KB 金币:15 举报 版权申诉
预览加载中,请您耐心等待几秒...

PCB RELAY INFORMATION.doc

PCBRELAYINFORMATION.doc

预览

在线预览结束,喜欢就下载吧,查找使用更方便

15 金币

下载此文档

如果您无法下载资料,请参考说明:

1、部分资料下载需要金币,请确保您的账户上有足够的金币

2、已购买过的文档,再次下载不重复扣费

3、资料包下载后请先用软件解压,在使用对应软件打开

PCBRELAYINFORMATIONUsing24vdcrelayswith12vdc.HYPERLINK"http://www.qsl.net/i0jx/relay.html"\t"_blank"http://www.qsl.net/i0jx/relay.htmlNote:MostPCBtyperelaysdon’tworkwellinarelayswitchedTunedInput.TheSWR,insertionlossandisolationarenotgoodenough.Foroutputrelaystheyworkokbutbeawareyouwillprobablyhavetouseatunerifyouareusingasolidstateradio.Manyofususeatunerontheoutputofourradiosandamplifiersanywaysotheyareokforoutputrelaysasfoundinanantennaswitch.TunedInputrelays:BestIhavefoundsofarforRFuseastheinputandoutputrelaysforarelayswitchedTunedInputisMagnecraftW7PCXseries.LookhereforMagnecraftW7PCXseriesofrelays:HYPERLINK"http://www.magnecraft.com/products/section7_11-12.pdf"\t"_blank"http://www.magnecraft.com/products/section7_11-12.pdfTheRelayCenterhasthebestprice:www.relaycenter.comTheAXICOMseriesV23105-A5relayhassimilarcharacteristicsastheW7PCX,costlessandshouldworkaswell.MOUSERhasthemhere:HYPERLINK"http://www.mouser.com/catalog/615/791.pdf"http://www.mouser.com/catalog/615/791.pdfBoththeW7PCXandV23105-A5relaysareDPDT.Youmayconnectbothpolesandthecontactsintandem.AsperaMagnecraftRFengineerthisisokandwilllowerthecontactresistance.Itwillnotincreasethecurrentcarryingcapacity.Lookhereforoutputrelays:HYPERLINK"http://www.azettler.com/prod/cur_pcbk10a.htm"\t"_blank"http://www.azettler.com/prod/cur_pcbk10a.htmIusetheAZ755relays.5000voltsRMSdielectricstrengthbetweenthecoilandcontactsand1000voltsRMSdielectricstrengthbetweenthecontacts.Thespacingbetweenthecoilandcontactsshouldbe8to10mm.The1AformisSPSTandthe1CisSPDT.TheDEsuffixmeansitisepoxysealed.Ihaveput1KWintothemmanytimeswithnoproblems.SomeusetheforRemoteAntennaSwitching.BuythemfromtheRelayCenter.WebSiteBelow.HYPERLINK"http://www.relaycenter.com/cgi-bin/surplus_azettler.pl?sesid=E1220463485X36633"\t"_blank"http://www.relaycenter.com/cgi-bin/surplus_azettler.pl?sesid=E1220463485X36633