Kukho imiba emininzi ekufuneka uyiqwalasele xa uyila iPCBA egqibeleleyo

Ukuyila i-PCBA egqibeleleyo (iNdibano yeBhodi yeSekethe eprintiweyo) idinga ukuqwalasela iinkalo ezininzi, ukusuka kuyilo lwesiphaluka ukuya ekukhethweni kwecandelo, ukuvelisa kunye nokuvavanya. Oku kulandelayo kukho ubunzima, amanqaku aphambili kuyilo lwePCBA kunye neendlela zokuphumeza uyilo olugqibeleleyo.

1. Ubunzima kuyilo lwePCBA

Ukuntsonkotha kweSekethe: Ii-elektroniki zanamhlanje ziba namandla ngakumbi, nto leyo ekhokelela kuyilo oluntsonkothileyo lwesekethe. Iibhodi ezininzi, izibonakaliso zesantya esiphezulu, iimpawu ezixubileyo (i-analog kunye nedijithali), njl njl. ziya kwandisa ubunzima bokuyila.

Ulawulo lwe-Thermal: Amacandelo aphezulu-amandla aya kuvelisa ubushushu obuninzi Ukuba ubushushu abukwazi ukuchithwa ngokufanelekileyo, kuya kubangela ukuthotywa kwe-PCBA okanye ukusilela.

Ukuhambelana kwe-Electromagnetic (EMC): Izixhobo zombane kufuneka zihlangabezane nemigangatho eyahlukeneyo yokuhambelana kwe-electromagnetic, kunye nokuphazamiseka kwe-electromagnetic (EMI) kunye ne-electromagnetic susceptibility (EMS) kufuneka ilawulwe kuyilo.

Unyino lwesithuba: Ngokukodwa kwiimveliso ze-elektroniki ezincinci, indawo ye-PCB ilinganiselwe, kwaye indlela yokucwangcisa amacandelo kunye nemikhondo kwisithuba esincinci ngumceli mngeni.

Inkqubo yokuvelisa: Iinkqubo ezahlukeneyo zokuvelisa zineemfuno ezahlukeneyo zokuyila, ezifana nokudityaniswa kweteknoloji ye-surface Mount (SMT) kunye ne-teknoloji ye- through-hole (THT).

Ulawulo lweendleko: Kwisiseko sokuqinisekisa ukusebenza kunye nomgangatho, indlela yokulawula iindleko nayo inzima kakhulu ekuyilweni.

2. Amanqaku aphambili oyilo lwePCBA

Cacisa iimfuno zoyilo: Ngaphambi kokuyila, cacisa iimfuno zokusebenza, izikhombisi zokusebenza, iimfuno zokusingqongileyo, njl. Qonda iimfuno zabathengi kunye nemigangatho yoshishino ukuqinisekisa ukuba uyilo luyahlangabezana nokulindelweyo.

Uyilo lwesekethe olufanelekileyo: Khetha i-topology yesekethe efanelekileyo, usasaze ngokufanelekileyo amandla kunye neengcingo zomhlaba, kwaye uqinisekise imfezeko yesiginali. Kwiisekethe eziyinkimbinkimbi, isoftware yokulinganisa ingasetyenziselwa ukuqinisekiswa.

Ukukhetha icandelo: Khetha amacandelo anokuthembeka okuphezulu kunye nokusebenza okuzinzileyo, kwaye uqwalasele iimeko zabo zokubonelela. Nika ingqalelo kusetyenziso lwamandla ecandelo kunye nolawulo lwe-thermal.

Uyilo lwePCB kunye nendlela:

Uyilo: Lungiselela amacandelo ngokufanelekileyo, uthathela ingqalelo iindlela zeempawu, ukuhanjiswa kwamandla kunye neendlela zokulahla ubushushu. Amacandelo aphambili kunye neesekethe ezibuthathaka kufuneka zibekwe phambili.

I-Wiring: Ukwahlula ngokwemisebenzi yesiphaluka ukuqinisekisa ukuhanjiswa okufanelekileyo kweempawu zesantya esiphezulu, iimpawu ze-analog kunye neempawu zedijithali. Nika ingqalelo ubude kunye nobubanzi bemikhondo kwaye uphephe ii-vias ezininzi.

Ulawulo lwamandla: Yila inkqubo yamandla ezinzileyo ukuqinisekisa ukuba imodyuli nganye ifumana amandla afanelekileyo. Lungiselela umgangatho wamandla usebenzisa i-filter capacitors kunye nenethiwekhi yokusabalalisa amandla (PDN).

Uyilo lokutshatyalaliswa kobushushu: Ukulungiselela amacandelo okufudumeza, yila izisombululo ezifanelekileyo zokutshatyalaliswa kobushushu, njengokongeza i-foil yobhedu yokukhupha ukushisa, usebenzisa i-heat sinks okanye abalandeli, njl. Qinisekisa ukuhanjiswa kobushushu obufanayo kwiPCB yonke.

3. Uyila njani iPCBA egqibeleleyo

Amalungiselelo okuqala:

Qonda iimfuno zeprojekthi ngokweenkcukacha kwaye ubhale iinkcukacha ezipheleleyo zoyilo.

Ukunxibelelana namasebe afanelekileyo (umzekelo, uyilo lomatshini, uphuhliso lwesoftware, ubunjineli bokuvelisa) ukuqinisekisa ukwenziwa koyilo kunye nokuvavanywa.

Ukuphuhlisa izicwangciso zoyilo kunye namaxesha okuqinisekisa ukuba iiprojekthi zigqitywa ngexesha.

Uyilo lwesekethe kunye nokulinganisa:

Sebenzisa isoftware ye-EDA yobungcali kuyilo lwesekethe ukuqinisekisa ukuba uyilo luhambelana neenkcukacha.

Qhuba ukuqinisekiswa kokulinganisa kwiisekethe eziphambili ukufumanisa kunye nokusombulula iingxaki ezinokwenzeka kwangaphambili.

Uyilo lwePCB kunye nendlela:

Yenza uyilo lwe-PCB kunye nomzila kwi-software ye-EDA, ubeke ingqalelo kwingqibelelo yomqondiso kunye nokuthembeka kwamandla.

Sebenzisa indibaniselwano yomzila oluzenzekelayo kunye nohlengahlengiso lwemanuwali ukunyusa uyilo lwePCB.

Uphononongo loyilo kunye nokwenza ngcono:

Yenza uphononongo loyilo kwaye umeme iingcali ezininzi ukuba zithathe inxaxheba ukujonga ukuchaneka kunye nengqiqo yoyilo.

Lungiselela ngokusekelwe kwizimvo zophononongo, ukunikela ingqalelo ekhethekileyo kwintembeko yomqondiso, ukuthembeka kwamandla, kunye noyilo lwe-thermal.

Imveliso yeprototype kunye novavanyo:

Yenza iprototypes, yenza iimvavanyo ezisebenzayo, iimvavanyo zokusebenza kunye neemvavanyo zokusingqongileyo ukuqinisekisa ukuthembeka kunye nokuzinza koyilo.

Hlalutya kwaye uphucule iingxaki ezifunyenwe ngexesha lovavanyo, kwaye uhlengahlengise ukuba kuyimfuneko.

Ukulungiselela imveliso enkulu:

Emva kokuqinisekisa ukuba uvavanyo lweprototype ludlulile, lungiselela imveliso yobuninzi. Nxibelelana nabavelisi ukuqinisekisa ukuba akukho zingxaki ziya kuvela ngexesha lokuvelisa ngobuninzi.

Phuhlisa isicwangciso sovavanyo oluneenkcukacha zokuqinisekisa ukuba i-PCBA nganye ivavanywa ngokungqongqo kwaye ihlangabezana neemfuno zomgangatho.

qhubeka uphucula:

Qokelela ulwazi lwengxelo emva kokuveliswa kobuninzi, uhlalutye iingxaki eziqhelekileyo, kwaye wenze uphuculo oluqhubekayo.

Rhoqo uvavanye uyilo kunye neenkqubo zokuvelisa ukunyusa ukusebenza kakuhle kwemveliso kunye nolawulo lomgangatho.

Ngokulandela ngokungqongqo la manyathelo kunye namanqaku aphambili, unako ukujongana ngempumelelo nobunzima kuyilo PCBA, uyilo olukumgangatho ophezulu, eliphezulu-ukusebenza PCBA, kwaye ukuhlangabezana neemfuno zabathengi kunye nemarike.

• Pre: Isishwankathelo soyilo lwePCB amanqaku aphambili: izinto ezininzi ekufuneka uziqwalasele
• 2024-07-09 20:33:03