Ngenxa yokutshintsha iimpawu zokutshintsha kwamandla, kulula ukubangela ukuba amandla okuhambisa amandla ukuvelisa uphazamiseko lwe-Electromagnetic. Njengenjineli yokubonelela ngamandla, injineli ye-elektromagnetic, okanye injineli yobeko lwe-PCB, kufuneka uziqonde izizathu ze-elektromagnetic kwaye usebenzise amanyathelo asombululwe, ngakumbi iinjineli zoyilo kufuneka azi ukuba kukuthintela njani ukwanda kweendawo ezimdaka. Eli nqaku lizisa iingongoma eziphambili zePCB yePCB.
I-15. Ukunciphisa indawo ethambileyo
I-16. Imiqondiso encinci yokulinganisa isekude kakhulu kwimigca enkulu ye-DV / ye-DT Kwangelo xesha, umqondiso omncinci kufuneka ube kude kangangoko kunokwenzeka kwimigca emikhulu ye-di / dt yokuthintela i-crosstalk. Kungcono ukuba ungahambi phantsi komqondiso omkhulu we-DV / DT xa umqondiso omncinci. Ukuba umva womkhondo omncinci unokuwiswa (umhlaba ofanayo), uphawu lwengxolo ludibene nalo lonke lunokuncitshiswa.
17. Kungcono ukubeka umhlaba ujikeleze kwaye ngasemva kwale migangatho inkulu ye-DV / DT kunye ne-di / dt umxholo we-DT / DT ye-S / D ye-E / SIPLE YESIQINISEKISO SOKUGQIBELA Oku kunokunciphisa i-EMI ekhutshelweyo. Kufuneka iqatshelwe ukuba umhlaba omncinci unganxulumana nalo mhlaba uluphazamileyo, kungenjalo uya kwazisa ukuphazamiseka okukhulu. Ukulandelwa okukhulu kwe-DV / DT ngesiqhelo kuphazamiseka kwisibini kwi-radiator kunye nomhlaba okufuphi ngokubhekisele ekuxhonyeni. Kungcono ukuqhagamshela i-radiator yetyhubhu yokukhusela. Ukusetyenziswa kwezixhobo zokutshintsha kweSwimi zeMphezulu kuya kunciphisa ukukukhathazeka kovavanyo, ngaloo ndlela kuncinwa ukuvumelana.
18. Kungcono ukuba ungasebenzisi i-vias ukuze iphazamisene ekuphazamiseni, njengoko iya kuphazamisa zonke iingqimba ukuba i-RIRE idlula.
19. Ukufihlwa kuya kunciphisa ukubhaliswa kwe-EMI, kodwa ngenxa yokunyuka kweyona nto inyukayo emhlabeni, eqhutywa yi-EMI Ingaqwalaselwa koyilo.
20. Ukuthintela ukuphazamiseka okuqhelekileyo, sebenzisa inqaku elinye lenqaku kunye nokubonelela ngamandla ukusuka kwinqaku elinye.
21. Ukutshintsha izinto zokuhambisa amandla zihlala zinemimandla emithathu: amandla egalelo komhlaba ophakamileyo ophakamileyo, umphumo womhlaba ophakamileyo wangoku, kunye nomhlaba omncinci wolawulo. Indlela yonxibelelwano yoMhlaba iboniswa kolo mzobo ulandelayo:
22. Xa umhlaba, qala ubume bomhlaba ngaphambi kokunxibelelana. Umhlaba wesampulu kunye ne-Amevation Amphariseko kufuneka iqhagamshelwe kwi-pole engeyiyo ye-Candocitor, kwaye umqondiso wesampulu kufuneka ukhutshwe kwi-poole efanelekileyo yeCanocitor. Umhlaba omncinci wokulawula umqondiso kunye nomhlaba oqhubayo kufuneka uxhaswe kwi-E / Sultor ukuphelisa ityhubhu yokutshintsha ukunqanda ukuphazamiseka okuqhelekileyo. Ngokwesiqhelo umhlaba wolawulo kunye nokuqhuba umhlaba we-IC akakhokelwa ngokwahlukeneyo. Ngeli xesha, ukunyanzela okukhokelayo kwiSampululi kulondolozo lwesampulu kulo mhlaba ungasentla kufuneka kube mncinci kangangoko kunokwenzeka ukunciphisa ukuphazamiseka okuqhelekileyo kunye nokuphucula ukuchaneka kwesampulu yangoku.
23. Inethiwekhi ye-voltage yemveliso ilunge kakhulu ukuba isondele kwi-Amplimie yempazamo kunokuba ikhuphe iziphumo. Oku kungenxa yokuba imiqondiso enyanzelekileyo yokufumana iphantsi kwayo ichaphazeleka kukuphazamiseka kunxibelelwano oluphezulu. Imikhondo yesampulu kufuneka isondele kangangoko kunokwenzeka ukuba inciphise ingxolo ithathiwe.
24. Nikela ingqalelo kwimo yabangazibangeliyo ukuba kude kwaye ugqithile omnye komnye ukunciphisa ukungahambi kakuhle, ngakumbi iziphazamiso zolondolozo lwemigangatho kunye nezixhobo zokucoca.
25. Nikela ingqalelo kwisakhiwo xa i-Sporcing ephezulu ye-capcial kunye ne-Pow-Popacial Capecincy isetyenziswa ngokuhambelana, isantya esiphakamileyo se-Preequency sisondele kumsebenzisi.
26. UPhepha loPhezulu oluPhezulu lwendlela ngokubanzi yemodi (engezantsi kwe-1m), kwaye uphakamshelwano malunga nokuhamba rhoqo yindlela eqhelekileyo, ihlala idityaniswa yimitha.
27. Ukuba umqondiso we-Right oPhakamileyo udityaniswe kwigalelo, kulula ukwenza i-EMI (kwimodi eqhelekileyo). Unokubeka umsesane wemagnethi kwigalelo elikhokelela kufutshane nokunikezelwa kwamandla. Ukuba i-EMI incitshisiwe, ibonisa le ngxaki. Isisombululo kule ngxaki kukunciphisa ukudibanisa okanye ukunciphisa i-EMI yesekethe. Ukuba ingxolo ephezulu ye-frequency ayicombulanga kwaye iqhutywa kwigalelo legalelo, i-EMI (iModi eyahlukileyo) iya kwenziwa. Ngeli xesha, umsesane wemagneti ungakwazi ukuyisombulula ingxaki. Tyala ii-onrocity ezimbini eziphezulu (i-symmetrical) apho kukhokelwa igalelo kufutshane nokunikezelwa kwamandla. Ukwehla kubonisa ukuba le ngxaki ikho. Isisombululo kule ngxaki kukuphucula ukungcola, okanye ukunciphisa isizukulwana sengxolo enkulu ye-upfuffer, i-clamping kunye nezinye iindlela.
28. Umlinganiso wemowudi eyahlukileyo kunye nemodi eqhelekileyo yangoku:
29. Isihluzo se-EMI kufuneka sisondele kumgca ongenayo, kwaye i-wiring yomgca ongenayo kufuneka ibe mfutshane kangangoko kunokwenzeka ukuba inciphise i-coupling phakathi kwe-EMAFIT ye-EMA. I-wire engenayo ifihliwe kakhulu kunye ne-chassis umhlaba (le ndlela ichazwe apha ngasentla). Imveliso yemveliso ye-EMI kufuneka iphathwe ngendlela efanayo. Zama ukwandisa umgama phakathi komgca ongenayo kunye nomkhondo we-DV / DT Stone, kwaye uyiqwalasele ngendlela.