Iibhodi zesekethe ezisetyenziswa kakuhle okanye i-PCBS azisoze zifezekise umgangatho ofunekayo kwimveliso yezorhwebo. Ukukwazi ukugweba umgangatho woyilo lwe-PCB kubaluleke kakhulu. Amava kunye nolwazi loyilo lwe-PCB kufuneka kufuneka enze uphononongo loyilo olupheleleyo. Nangona kunjalo, zininzi iindlela zokhupha ngokukhawuleza umgangatho woyilo lwe-PCB.

Umzobo occhematic unokwanela ukubonisa izinto zomsebenzi onikiweyo kunye nendlela ezinxulumene ngayo. Nangona kunjalo, ulwazi olunikezwe sisikitho malunga nokubekwa kwaye uqhagamshelo lwamacandelo omsebenzi onikiweyo lulinganiselwe. Oku kuthetha ukuba nokuba i-PCB yenziwe ngokusebenzisa kakuhle lonke unxibelelwano lwecandelo lomzobo opheleleyo womgaqo-nkqubo opheleleyo, kunokwenzeka ukuba imveliso yokugqibela ayinakusebenza njengoko kulindelwe. Ukukhangela ngokukhawuleza komgangatho woyilo lwe-PCB, nceda uqwalasele oku kulandelayo:

1. I-PCB TRACE

I-PCB ebonakalayo ye-PCB igutyungelwe ngumphathi weThuthi, onceda ukukhusela ukulandelwa kobhedu kwimijikelezo emifutshane kunye ne-oxidation. Imibala eyahlukeneyo inokusetyenziswa, kodwa owona mbala usetyenziswa kakhulu luhlaza. Qaphela ukuba kunzima ukubona indlela ngenxa yombala omhlophe wemaski yomthengi. Kwiimeko ezininzi, sinokubona kuphela iindawo eziphezulu nezingaphantsi. Xa i-PCB ingaphezulu kweengqimba ezimbini, ii-lars zangaphakathi azibonakali. Nangona kunjalo, kulula ukugweba umgangatho woyilo ngokujonga izibonda zangaphandle.

Ngexesha lenkqubo yovavanyo loyilo, jonga umkhondo ukuqinisekisa ukuba akukho zigoba zibukhali kwaye zonke zidlulise kumgca othe ngqo. Kulumkele ukugoba okubukhali, kuba i-free-frequency okanye umkhondo omkhulu unamandla kunokubangela ingxaki. Ziphephe ngokupheleleyo kuba zingumqondiso wokugqibela woyilo olubi.

2. Dlula iCapacitor

Ukwenzela ukucoca nayiphi na ingxolo ephezulu yokuchaphazela kakubi i-chip, i-CaceCough Capacing isondele kakhulu kwiPIN yokuhambisa amandla. Ngokubanzi, ukuba i-chip iqulethe ngaphezulu kwe-Drain-to-to-Drain

I-Capaciling ye-Decoupiling kufuneka ibekwe kufutshane nePIN ukuba iconjululwe. Ukuba ayibekwanga kwiPIN, isiphumo seCapatiling yeCawa iya kuncitshiswa kakhulu. Ukuba i-Cacecing yeCapaciling ayibekwa ecaleni kwe-pins uninzi lwe microchips, emva koko iphinde ibonise ukuba uyilo lwe-PCB aluchanekanga.

I-3. Ubude be-PCB ye-PCB bulungelelene

Ukwenzela ukuba imiqondiso emininzi inobudlelwane obuchanekileyo bexesha, ubude be-PCB Trace kufuneka bubekwe kwiYilo. Ukulandelelana okungaphezulu kokuqinisekisa ukuba zonke iimpawu zifikelela kwiindawo zazo zokulibaziseka kunye nokunceda ukugcina ubudlelwane phakathi kwemiphetho yomqondiso. Kuyimfuneko ukufikelela umzobo ochetyiweyo ukuze wazi ukuba nayiphi na iseti yemigca yomqondiso ifuna ubudlelwane obuchanekileyo bexesha. Ezi zinto zinokutsalwa ukuba ziqwalasele ukuba ngaba kukho naluphi na umatshini wokulinganisa usetyenzisiwe (ngenye indlela ebizwa ngokuba yimigca yokulibaziseka). Kwiimeko ezininzi, ezi ntlobo zokulibaziseka zibonakala ngathi yimigca egobileyo.

Kufanelekile ukuba uqaphele ukuba ukulibaziseka okungaphezulu kubangelwa yiViyayi kwiNdlela yomqondiso. Ukuba uVias akanakuthintelwa, kubalulekile ukuqinisekisa ukuba onke amaqela anenombolo elingana ne-VIAS ngolwalamano oluchanekileyo. Ngenye indlela, ukulibaziseka okubangelwa yi-adi kuhlawulelwa ukusetyenziswa komgca wokulibaziseka.

I-4. Indawo yokubekwa kwecandelo

Nangona izikhuseli zinokwazi ukuvelisa amasimi e-magnetic, iinjineli maziqinisekise ukuba azifakwanga omnye komnye xa zisebenzisa iimpembelelo kwisekethe. Ukuba izikhuselo zisondelwene omnye komnye, ngakumbi isiphelo-esiphelweni, siya kwenza ukudibanisa okuyingozi phakathi kwabaxhasi. Ngenxa yentsimi yemagnethi eveliswe ngumqhubi, umbane wangoku ubanjiwe kwinto enkulu yentsimbi. Ke ngoko, kufuneka zibekwe kumgama othile ukusuka kwinto ethile yensimbi, kungenjalo ixabiso lokukhuphela linokutshintsha. Ngokubeka izikhundla ezingasebenziyo kwelinye, nokuba izikhuselo zisondelelene, ukudibanisa okungafunekiyo kunokuncitshiswa.

Ukuba i-PCB inabaphathi abaqeqeshiweyo okanye nawaphi na amanye amacandelo okuvelisa ubushushu, kuya kufuneka uqwalasele isiphumo sobushushu kwamanye amacandelo. Umzekelo, ukuba amaqondo obushushu amaBushushu okanye i-thermostas asetyenziswa kwisekethe, akufuneki zibekwe kufutshane nabaphathi bamandla okanye naziphi na izinto ezivelisa ubushushu.

Kufuneka kubekho indawo ezahluleleyo kwi-PCB kumlawuli wokutshintsha kwebhodi kunye nezinto ezinxulumene noko. Eli candelo kufuneka libekwe kude kangangoko kunokwenzeka kwinxalenye ejongene nemiqondiso emincinci. Ukuba ukuhanjiswa kwamandla e-AC kuxhumathele ngqo kwi-PCB, kufuneka kubekho icandelo elahlukileyo kwicala le-CCB. Ukuba izinto azihlulwanga ngokwezi ngcebiso zingezantsi, umgangatho woyilo lwe-PCB luya kuba yingxaki.

I-5. Ububanzi bomkhondo

Iinjineli kufuneka zithathe ukhathalelo olongezelelekileyo ukumisela ubungakanani bendlela ephethe imijikelezo emikhulu. Ukuba umkhondo ophethe imiqondiso etshintsha ngokukhawuleza okanye imiqondiso yedijithali isebenza ngokuhambelana nokuhamba imiqondiso encinci ye-analog, iingxaki zengxolo zinokuvela. Umkhondo oxhumeneyo kumphezulu we-i-Infowk unesakhono sokusebenza njenge-eriyali kwaye inokubangela ukukhutshwa rhoqo kwerediyo. Ukuthintela oku, la manqaku akufuneki abenzi.

I-6. Indiza ephantsi kunye neplani

Ukuba i-PCB inamacandelo amabini, idijithali kunye ne-ankile ye-Digital, kwaye kufuneka idityaniswe kwindawo enye eqhelekileyo (ihlala i-terminal engalunganga), inqwelomoya eqingqiweyo kufuneka yahlulwe. Oku kunokunceda ukuphepha ifuthe elibi lecandelo ledijithali kwinxalenye ye-alog ebangelwa yi-spike yomhlaba. Umkhondo wesekethe ongezantsi (ukuba i-PCB inee-faces ezimbini kuphela ekufuneka zohluwe, kwaye ke kufuneka idityaniswe kwi-terminal engalunganga. Kucetyiswa ngamandla ukuba namaqhekeza amane eeplibhu ezintsonkothileyo, kwaye iingqimba ezimbini zangaphakathi ziyafuneka kumandla kunye namandla omhlaba.

ukuququmbela

Kwiinjineli, kubaluleke kakhulu ukuba nolwazi olwaneleyo lobuqhetseba kwi-PCB yokugweba umgangatho womgangatho omnye okanye omnye umsebenzi. Nangona kunjalo, iinjineli ngaphandle kolwazi lobungcali zinokujonga ezi ndlela zilapha. Ngaphambi kotshintsho kwiprototyping, ngakumbi xa uyila imveliso yokuqalisa, ihlala ingumbono olungileyo ukuba usoloko uyitshintshe umgangatho woyilo lwe-PCB.