Umgaqo-siseko kunye nokuVeliswa koMbane we-Electromagnetic Interference EMI

Umgaqo-siseko kunye nokuVeliswa koMbane we-Electromagnetic Interference EMI

Ngaphambi kokuchaza umgaqo wokuphazamiseka kwe-electromagnetic, ngoku siyaziqonda izizathu ze-EMI:

1. Izizathu ze-EMI

Iindlela ezahlukeneyo zokuphazamiseka kwe-electromagnetic zezona zizathu zichaphazela ukuhambelana kwezixhobo zombane.Ke ngoko, ukuqonda unobangela wokuphazamiseka kwe-electromagnetic yeyona nto ibalulekileyo yokucinezela ukuphazamiseka kwe-electromagnetic kunye nokuphucula ukuhambelana kombane weemveliso zombane.Ukuveliswa kokuphazamiseka kwe-electromagnetic kunokwahlulwa kube:

Uphazamiseko lwangaphakathi Uphazamiseko olukhoyo phakathi kwamalungu angaphakathi e-elektroniki

I-1) Umbane osebenzayo uvelisa ukuphazamiseka okubangelwa ukuvuza ngokusasazwa kombane kunye nokuchasana kwe-insulation yomgca.

I-2) Isignali idibaniswe kunye nomnye ngokusebenzisa i-impedance yocingo lomhlaba, ukunikezelwa kwamandla kunye nocingo lokuhambisa, okanye impembelelo ebangelwa ukunyathelana phakathi kweengcingo.

3) Amanye amacandelo ngaphakathi kwesixhobo okanye inkqubo avelisa ubushushu, obuchaphazela ukuzinza kwamacandelo ngokwawo kunye namanye amacandelo.

I-4) Umbane wamagnetic kunye nombane owenziwe ngamandla aphezulu kunye ne-high-point-voltage components zichaphazela ukuphazamiseka okubangelwa ngamanye amacandelo ngokudibanisa.

Ungenelelo lwangaphandle – impembelelo yezinto ezingezizo izixhobo zombane okanye iinkqubo kwiisekethe, izixhobo okanye iinkqubo.

1) I-voltage ephezulu yangaphandle kunye nonikezelo lwamandla luphazamisa iisekethe zombane, izixhobo okanye iinkqubo ngokuvuza kwe-insulation.

I-2) Izixhobo zangaphandle eziphezulu zamandla zivelisa indawo eqinile yamagnetic kwindawo, ephazamisana neesekethe ze-elektroniki, izixhobo okanye iinkqubo ngokudibanisa i-mutual inductance.

3) Ukuphazamiseka kwe-electromagnetic yendawo kwiisekethe zombane okanye iinkqubo.

4) Ukushisa kwendawo yokusebenza ayizinzile, kubangela ukuphazamiseka okubangelwa utshintsho kwiiparameters zeesekethe ze-elektroniki, izixhobo okanye izixhobo zangaphakathi zenkqubo.

2. Indlela yokudluliselwa kokuphazamiseka kwe-electromagnetic

Xa ubuninzi bomthombo wophazamiseko buphezulu, kunye nobude besibonakaliso sophazamiseko buncinci kunobukhulu besakhiwo sento ephazamisekileyo, umqondiso wophazamiseko unokuthathwa njengethafa lemitha, elisasaza amandla ombane ngendlela yamaza ombane wombane. kwaye ingena umendo wento ephazamisekileyo.Ngendlela yokudibanisa kunye nokudibanisa, ngokusebenzisa i-dielectric insulating, ukudibanisa kwe-impedance eqhelekileyo kungena kwinkqubo ephazamisayo.Iimpawu zokuphazamiseka zingangena kwinkqubo ngokuqhuba ngokuthe ngqo.

3. Amanyathelo okuphucula ukuhambelana kwe-electromagnetic

Ukuphucula ukuhambelana kwe-electromagnetic yeemveliso ze-elektroniki, ukubeka phantsi, ukukhusela kunye nokucoca zezona ndlela zisisiseko zokucinezela i-EMI.

1) Ukuthoba

I-Grounding yindlela yokuqhuba umbane phakathi kwamalungu ombane kunye ne-electronic kwisistim ukuya kwindawo yesalathiso ephantsi.Ukongeza ekunikezeni indawo yokukhusela ukhuseleko lwezixhobo, umhlaba uphinde unikeze indawo yesalathiso somqondiso oyimfuneko ekusebenzeni kwezixhobo.Inqwelomoya efanelekileyo yomhlaba ngumzimba wenyama onokuthi ubekho kunye ne-zero impedance, enokuthi isetyenziswe njengendawo yesalathiso kulo lonke uphononongo lwesiginali kwisekethe, kwaye naluphi na umqondiso ophazamisayo odlula kuwo awuzukuvelisa ukuhla kwamandla ombane.Nangona kunjalo, inqwelomoya efanelekileyo yomhlaba ayikho, efuna ukuba sicinge kwaye sihlalutye ukuhanjiswa kwamandla aphantsi komhlaba, ukuqhuba uyilo lomhlaba kunye nophando, kwaye sifumane amandla afanelekileyo omhlaba.Iindlela zokubeka phantsi komhlaba zinokwahlulwa zibe: umhlaba odadayo, indawo enye, isiseko esinamanqaku amaninzi, kunye ne-hybrid grounding.Kwinkqubo yesekethe, kukho iinketho: ukumiswa kwesekethe, ukumiswa kombane, kunye nokumisa umqondiso.

2) ukukhusela

Ukukhusela kukusebenzisa umphezulu ovaliweyo we-conductive okanye i-electromagnetic ukwahlula ngombane izithuba zangaphakathi nezingaphandle.Ikakhulu icinezela uphazamiseko lwemitha kwisithuba.Yahlulahlulwe ibe yi-electromagnetic shielding, i-electric field shielding kunye nemagnetic field shielding.

Uyilo lokukhusela lunokujoliswa kumthombo wokuphazamiseka kunye nento ephazamisayo.Ngomthombo wokuphazamiseka, ukuyila kwenxalenye yokukhusela kunokunciphisa impembelelo kwezinye izixhobo ezijikelezayo;kwinto ephazamisekileyo, inokunciphisa impembelelo yokuphazamiseka kwangaphandle kwamaza ombane kwisixhobo.

Ukhuselo olusebenzayo: Beka umthombo wokuphazamiseka ngaphakathi kumzimba okhuselayo ukunqanda amandla ombane kunye nemiqondiso yophazamiseko ekubeni ivuze kwindawo yangaphandle.

Ukhuselo lwePassive: Ukubeka izixhobo ezinovakalelo kumzimba okhuselayo ukuze ungachatshazelwa luphazamiseko lwangaphandle.

3) Ukuhluza

Intsingiselo yokucoca ibhekisa kubuchule bokukhupha imiqondiso eluncedo kwimiqondiso yoqobo exutywe nengxolo okanye uphazamiseko.Izihluzi ze-EMIngamacandelo okuphumeza ukuhluzwa.

Ngapha koko, xa isixhobo sisebenza, siya kuvelisa ingxolo eyahlukeneyo.Ukutshintsha unikezelo lwamandla ngumthombo wokuphazamiseka owomeleleyo, kwaye isignali ye-EMI ayivelisi nje kuphela i-frequency range, kodwa ikwane-amplitude enkulu.Ngokusasazwa komqondiso, ezi ngxolo ziphazamisa amacandelo alandelayo, kwaye ukuqokelelwa kokuphazamiseka okunjalo ekugqibeleni kunokukhokelela ekusebenzeni okungaqhelekanga kwesiphaluka sonke.Ukucinga ukuba isibonakaliso semveliso yesixhobo esinengxolo enkulu kunye nokuphazamiseka okucacileyo kwisixhobo esisezantsi sihluzwa ukucoca isignali yengxolo, ukuphazamiseka kwisixhobo esisezantsi kuya kuncitshiswa, kwaye inkqubo iya kusebenza ngokuzinzileyo.

I-DOREXSInkokeli yeshishini le-EMI

Ukuba ufuna ukhuseleko lwe-EMI olusebenzayo, i-DOREXS ibonelela ngokuzinzileyoe kunye nezihluzi ezithembekileyo ze-EMI 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.

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