Indlela yoyilo ye-EMI yokucoca unikezelo lwamandla
Izihluzi ze-EMI ziyafuneka ukukhusela izixhobo zombane ekuphazamisekeni kwe-electromagnetic (EMI).Uyilo lokucoca kunye nokukhethwa kuxhomekeke kwimimiselo ye-EMI, iikhowudi zombane, kunye nezinye iimfuno zoyilo.Kwiimeko ezininzi, izihluzi eziqhelekileyo eziphuma kwi-shelf ziyakwanela kwisicelo, kodwa kwiimeko ezininzi, isisombululo se-EMI yesiko lokucoca siba yimfuneko ukuhlangabezana ne-application-specific parameters.
Kutheni unokudinga uYilo oluSikoIsihluzo se-EMIIsisombululo
Iziphumo zokuphazamiseka kwe-electromagnetic ziyahluka ngokubanzi.Kwezinye iimeko, i-EMI yinto nje ecaphukisayo ebangela ukuphazamiseka.Nangona kunjalo, kwizicelo ezibalulekileyo ezifana nezonyango kunye nezomkhosi, iingxaki ezinjalo zinokubulala.
Kukho iindlela ezimbini eziphambili zokusasazwa kwe-EMI - ukuqhuba kunye nemitha.I-EMI eqhutywayo isasaza ngeentambo ezinjengeentambo zombane, iingcingo, kunye neentambo zomqondiso.Iziphazamiso ezivuthayo zihamba emoyeni zivela kwimithombo efana nezixhobo zombane, iimotor, izixhobo zombane, iiselfowuni kunye nezixhobo zokusasaza zikanomathotholo.
I-EMI yenzeka xa imiqondiso yengxolo ye-frequency ephezulu eveliswa zizitshixo zombane okanye zombane ziphazamisa ukusebenza kwesixhobo sombane.Kwizixhobo zokuvelisa isandi njengezithethi, oku kunokuvelisa i-static okanye i-crack.Ezinye iimveliso zombane zinokuba nokuphazamiseka, ukungasebenzi kakuhle okanye iimpazamo.
Nangona imitha ye-electromagnetic inokuphazamisana nokusebenza kweesekethe zombane, inokubangela ukuba izixhobo zisilele ukuthobela imigaqo ye-EMI.Ukuba isixhobo sinophazamiseko lwamaza erediyo okanye aluphumeleli kuvavanyo lwe-EMI, isihluzo siyafuneka ukunciphisa uphazamiseko kwaye sizise ifowuni ekuthotyelweni.
Ukuhambelana koMbane (I-EMC) iinjineli zizama ukunciphisa iziphazamiso kunye nokusilela okubangelwa kukuphazamiseka okuqhutywe kunye nokukhutshwa kwemitha.
Kwiimeko ezininzi, ukuthintela ukuphazamiseka kungumsebenzi omele ubonwe.Ngokomzekelo, ukuba imveliso ithengiswa kwi-European Union, kufuneka ihambelane ne-EMC Directive 89/336/EEC, efuna ukuba izixhobo zincitshiswe ekukhutshweni nasekukhuselweni kokuphazamiseka kwangaphandle.E-US, kukho urhwebo (iCandelo le-FCC 15 kunye ne-18) kunye nemigangatho yomkhosi efuna ukuthotyelwa kwe-EMI efanayo.
Kwiimeko ezininzi, nangona i-US, i-EU, kunye nemimiselo ye-EMC yamazwe ngamazwe ayisebenzi, izixhobo zisenokufuna izihluzi ze-EMI ukuze zikhuseleke kwiindawo ezinengxolo.Indlela yokukhetha isihluzi se-EMI sixhomekeke kwiingcamango ezininzi zoyilo ezifana nezangoku, i-voltage, i-frequency, indawo, uqhagamshelo kunye nelahleko efunekayo yokufaka.
Kwizicelo ezininzi, iimveliso ezisemgangathweni zinokuhlangabezana neemfuno zoyilo, kodwa ukuba iimveliso ezisemgangathweni azikwazi ukuhlangabezana noyilo olufunekayo, uyilo lwesiko luyafuneka.
Ngokuqhelekileyo, i-frequency ephantsi yengxolo ibonakaliswa njengophazamiso oluqhutywayo (ukuphazamiseka), kwaye isihluzi sengxolo sixhomekeke ikakhulu kwi-inductive react ye-coil choke ukubonelela ngoxinzelelo lwengxolo.Kwisiphelo esiphezulu se-frequency yengxolo, amandla omsindo aqhutywayo athatyathwa ngukumelana okulinganayo kwekhoyili ye-coil kwaye igqithwe yi-capacitance esasazwayo.Ngeli xesha, ukuphazamiseka kwemitha kuba yindlela ephambili yokuphazamiseka.
Ukuphazamiseka kwe-radiation kubangela imimoya yengxolo kumacandelo akufutshane kunye nokukhokela, oku kunokubangela ukuxhatshazwa kwesekethe kwiimeko ezinzima, eziye zivelele ngakumbi kwimeko yendibano yesiphaluka esincinci kunye nesiphezulu.Uninzi lwezixhobo ezichasene ne-EMI zifakwe kwiisekethe njengezihluzo ezidlulayo ezisezantsi ukucinezela okanye ukufunxa uphazamiseko lwengxolo.Isihluzi esinqunyiweyo sefcn sinokuyilwa okanye sikhethwe ngokwezandi zengxolo eziza kucinezelwa.
Siyazi ukuba isihluzi sengxolo sifakwa kwisekethe njengesiphazamisi sengxolo, kwaye umsebenzi waso kukungahambelani ngokumandla ingxolo engaphaya kophawu.Ukusebenzisa ingqikelelo yokungahambelani kwengxolo, indima yesihluzi inokuqondwa ngolu hlobo lulandelayo: ngesihluzo sengxolo, ingxolo inokunciphisa inqanaba lokuphuma kwengxolo ngenxa yokwahlulwa kwamandla ombane (attenuation), okanye ukufunxa amandla engxolo ngenxa yokubonakaliswa okuninzi, okanye ukutshabalalisa. i-parasite ngenxa yotshintsho lwesigaba somjelo.iimeko ze-oscillation, ngaloo ndlela kuphuculwe umda wengxolo wesekethe.
Kufuneka kwakhona sinikele ingqalelo kule miba ilandelayo xa siyila kwaye sisebenzisa izixhobo ezichasene ne-EMI:
1. Okokuqala, kufuneka siqonde imeko-bume ye-electromagnetic kwaye sikhethe uluhlu olufanelekileyo lwamaza;
2. Ukuqwalasela ukuba kukho i-DC okanye i-AC eyomeleleyo kwisekethe apho isihluzo sengxolo sikhoyo, ukuthintela undoqo wesixhobo ukuba ungahluthi kwaye usilele;
3. Buqonda ngokupheleleyo ubukhulu kunye nohlobo lwesithintelo phambi nasemva kokufakwa kwisekethe ukuphumeza ukungahambelani kwengxolo.I-impedance ye-coil choke ngokuqhelekileyo yi-30-500Ω, efanelekileyo ngakumbi ukuba isetyenziswe phantsi kwe-impedance yomthombo ophantsi kunye nokuphazamiseka komthwalo;
4. Kwakhona nikela ingqalelo kwi-crosstalk inductive phakathi kwe-capacitance esasazwayo kunye namacandelo asondeleyo kunye neengcingo;
5. Ukongezelela, qaphela ukulawula ukunyuka kweqondo lokushisa kwesixhobo, ngokuqhelekileyo kungadluli kuma-60 ° C.
Oku ngasentla yindlela yoyilo yokucoca amandla e-EMI i-DOREXS eyabelana ngayo nawe namhlanje, ndiyathemba ukuba iya kuba luncedo kuwe!
I-DOREXSInkokeli yeshishini le-EMI
Ukuba ufuna ukhuseleko lwe-EMI olusebenzayo, i-DOREXS ibonelela ngezihluzi ze-EMI ezihlala zihleli kwaye zinokuthenjwa kuzo zonke izicelo.Izihluzi zethu zifanelekile kwizicelo zobungcali kumkhosi kunye nezonyango, kunye nokusetyenziswa kwendawo yokuhlala kunye nezoshishino.Kwizicelo ezifuna isisombululo sesiqhelo, iqela lethu lobuchwephesha linokwenza isihluzo se-EMI ukuhlangabezana neemfuno zakho ezithile.
Ngeminyaka eli-15 yamava ekusombululeni ukuphazamiseka kwe-electromagnetic, i-DOREXS ngumvelisi othembekileyo wezihluzo ezikumgangatho ophezulu ze-EMI zonyango, ezomkhosi kunye nezorhwebo.Zonke izihluzi zethu ze-EMI ziyilelwe ukuhlangabezana nemigangatho yoshishino kunye nokuthobela imigaqo ye-EMC.Phonononga ukhetho lwethu lwezihluzo ze-EMI okanye ungenise isicelo sekowuti ukuze ufumane isihluzo esigqibeleleyo se-EMI kwiimfuno zakho.Ngolwazi oluthe kratya malunga ne-DOREXS yesiko kunye nezihlungi eziqhelekileyo ze-EMI, nceda uqhagamshelane nathi.
Email: eric@dorexs.com
Umnxeba: 19915694506
Whatsapp: +86 19915694506
iwebhusayithi: scdorexs.com
Ixesha lokuposa: Feb-07-2023
