Ukuphelisa uphazamiseko lwe-electromagnetic (EMI) kwi-PCB (ibhodi yesekethe eprintiweyo) uyilo lunokuba nzima kwaye lufuna izigaba ezininzi.Amanye awona abalulekileyo kula manyathelo ngala alandelayo:
Chonga imithombo enokuba kho ye-EMI:
Inyathelo lokuqala ekuphelisweni kwe-EMI kukuchonga imithombo enokubakho yokuphazamiseka.Eli nyathelo libandakanya ukujonga isakhiwo sesiphaluka kunye nokuchonga izinto ezifana ne-oscillators, ukuguqula abalawuli kunye neempawu zedijithali ezivame ukuvelisa i-EMI.
Lungiselela ukubekwa kwelungu:
Ukubeka amacandelo kwi-PCB kubanika eyona inzuzo.Ukukhusela okanye ukuhluza amacandelo kunceda ukwahlula iisekethe ezibuthathaka, okanye unokufuna ukuhambisa amacandelo ukuze unciphise isithuba phakathi kwazo.
1. Sebenzisa iindlela ezichanekileyo zokubeka phantsi
Ukuthoba kubalulekile ukunciphisa i-EMI.Ukunciphisa amandla e-EMI kufuneka usebenzise ubuchule obuchanekileyo bokumisa.Eli nyathelo libandakanya ukusebenzisa indiza ephantsi ezinikeleyo ukwahlula i-analogue kunye neempawu zedijithali, okanye ukudibanisa amacandelo amaninzi kwinqwelomoya enye.
2. Phumeza ukukhusela kunye nokucoca
Kwezinye iimeko, amacandelo asetyenziselwa ukukhusela okanye ukuhluza anokunceda ukuphelisa i-EMI.amacandelo okucoca anceda ukususa ii-frequencies ezingafunekiyo kwi-signal, ngelixa ukukhusela kunokunceda ukukhusela i-EMI ekufikeleleni kwiisekethe ezibucayi.
3. Uvavanyo kunye nokuqinisekisa
Emva kokuba uyilo luphuculwe, kufuneka uqinisekise ukuba uyisusile ngokuchanekileyo i-EMI.oku kuphelisa kunokufuna ukulinganisa ukukhutshwa kwe-electromagnetic ye-PCB kunye nomhlalutyi we-EMI, okanye ukuvavanya i-PCB kwimeko yelizwe lokwenyani ukuqinisekisa ukuba isebenza njengoko kucwangcisiwe.
Uvavanyo lwe-EMI kuyilo lwePCB
Ngaba kufuneka uvavanye i-EMI kuyilo lwePCB yakho kwaye ukuba kunjalo, ke ezi nkcukacha zilandelayo kufuneka zikuncede uhambe.Emva koko, uya kufuna ukulandela la manyathelo alandelayo:
1. Chaza iikhrayitheriya zovavanyo
Chaza uluhlu lwamaza, iindlela zovavanyo kunye nemida.Umgangatho wemveliso kufuneka umisele imilinganiselo yovavanyo.
2. Izixhobo zokuvavanya
Misela i-EMI receiver, i-signal generator, i-spectrum analyzer kunye ne-oscilloscope.Izixhobo kufuneka zilinganiswe kwaye zingqinisiswe phambi kovavanyo.
3. Lungisa iPCB
Ngeenjongo zokuvavanya, qiniseka ukuba ufaka onke amacandelo ngokuchanekileyo kwaye unike amandla iPCB ngokuchanekileyo ngokuyidibanisa nezixhobo zovavanyo.
4. Yenza uvavanyo lweradiated emission
Ukwenza uvavanyo lokukhutshwa kwemitha, beka i-PCB kwigumbi le-anechoic kwaye udlulise umqondiso ngejenereyitha yomqondiso ngelixa ulinganisa inqanaba lokukhutshwa kwemitha kunye nomamkeli we-EMI.
5. Kwenziwa uvavanyo lokukhupha amanzi
Kwenziwa uvavanyo lokukhutshwa ngokutofa imiqondiso kumandla kunye nemigca yesiginali yePCB, ngelixa kulinganiswa inqanaba lokukhutshwa eliqhutywayo kunye nomamkeli we-EMI.
6. Hlalutya iziphumo
Hlalutya iziphumo zovavanyo ukufumanisa ukuba uyilo lwePCB luyahlangabezana neenqobo zovavanyo.Ukuba iziphumo zovavanyo azifikeleli kwiikhrayitheriya, chonga umthombo wokukhupha kwaye uthathe amanyathelo okulungisa, njengokongeza i-EMI ukukhusela okanye ukuhluza.
Iprofayile yekhampani
I-Zhejiang NeoDen Technology Co., Ltd. ibisenza kwaye ithumela ngaphandle koomatshini abancinci abancinci bokukhetha kunye nendawo ukusukela ngo-2010. Ukuthatha ithuba le-R&D yethu enamava, imveliso eqeqeshwe kakuhle, iNeoDen iphumelela igama elihle kubathengi behlabathi ngokubanzi.
kunye nobukho behlabathi kumazwe angaphezu kwe-130, ukusebenza okugqwesileyo, ukuchaneka okuphezulu kunye nokuthembeka koomatshini be-NeoDen PNP kubenza bagqibelele kwi-R&D, iprototyping yobuchwephesha kunye nemveliso yebhetshi encinci ukuya ephakathi.Sinikezela ngesisombululo sobungcali sesixhobo esinye sokumisa i-SMT.
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Ixesha lokuposa: May-06-2023