1. Ungabhekana kanjani nezinye izingxabano zethiyori ku-wiring yangempela?
Ngokuyisisekelo, kulungile ukuhlukanisa nokuhlukanisa umhlabathi we-analog / wedijithali. Kumele kwaziwe ukuthi umkhondo wesiginali akufanele awele umsoco ngangokunokwenzeka, futhi indlela yokubuyisa indlela yamandla kagesi kanye nesiginali akufanele ibe nkulu kakhulu.
I-Crystal Oscillator iyi-analog yempendulo ye-oscillation eyakhayo ye-oscillation. Ukuze ube nesiginali ye-Oscillation ezinzile, kufanele ahlangabezane nokuthola inzuzo ye-loop kanye nokucaciswa kwesigaba. Ukucaciswa kwe-Oscillation kwalesi siginali ye-analog kuphazamiseka kalula. Noma ngabe kufakwa imibala yokuqapha yomhlaba, ukuphazamiseka kungenzeka kungahlukaniswa ngokuphelele. Ngaphezu kwalokho, umsindo endizeni emhlabathini uzothinta nomjikelezo omuhle we-Oscillation uma kukude kakhulu. Ngakho-ke, ibanga phakathi kwe-crystal oscillator ne-chip kumele kusondele ngangokunokwenzeka.
Ngempela, kunezingxabano eziningi phakathi kwe-wiring enejubane eliphezulu nezidingo ze-EMI. Kepha umgomo oyisisekelo ukuthi ukumelana nokumelana noma ubuhlalu be-Ferrite obungezwe yi-EMI akunakubangela ezinye izici zikagesi zesiginali zehluleke ukubhekana nezincazelo. Ngakho-ke, kungcono ukusebenzisa amakhono okuhlela ukulandela umkhondo kanye ne-PCB ukufaka ukuxazulula noma ukunciphisa izinkinga ze-EMI, njengezimpawu ezinejubane eliphezulu eziya engxenyeni yangaphakathi. Okokugcina, ama-capacitors wokumelana noma ubuhlalu be-ferrite asetshenziselwa ukunciphisa ukulimala kwisiginali.
2. Ungaxazulula kanjani ukungqubuzana phakathi kwe-wiring ye-Manual kanye ne-automatic wiring yezimpawu eziphakeme zejubane?
Iningi le-couters ethomathikhi yesoftware eqinile ye-wiring ibeke izingqinamba ukulawula indlela yokuvula kanye nenombolo ye-vias. Amakhono we-Winding Injini kanye nezindawo zokubeka izingqinamba kwezinkampani ezahlukahlukene ze-Eda kwesinye isikhathi zihluke kakhulu.
Isibonelo, noma ngabe kunezingqinamba ezanele zokulawula indlela yeSerpentine Winding, noma ngabe kungenzeka ukulawula isikhala sokulandela umkhondo we-pair ehlukile, njll. Lokhu kuzothinta ukuthi ngabe indlela yokuzithandela ye-othomathikhi ingahlangabezana nomqondo womklami.
Ngaphezu kwalokho, ubunzima bokushintsha ngesandla i-wiring nalo nalo buhlobene nekhono lenjini yokuvuselela. Isibonelo, amandla okucindezela umkhondo, amandla okucindezela we-via, kanye nekhono lokucindezela lokulandela umkhondo wethusi, njll. Ngakho-ke, ukukhetha i-router ngamandla anamandla okuthola amandla.
3. Mayelana nesigqebhezana sokuhlola.
Isigqebhezana sokuhlola sisetshenziselwa ukukala ukuthi ngabe isimilo se-PCB Board sihlangabezana nezidingo zokwakhiwa nge-TDR (Time Domain Collimeter). Ngokuvamile, ukungasebenzi okumele kulawulwe kunamacala amabili: ucingo olulodwa nokwehlukana.
Ngakho-ke, ububanzi bentambo nomugqa ohlukanisayo kwikhuphoni lokuhlola (lapho kukhona umbhangqwana ohlukile) kufanele kube okufanayo nokuthi umugqa ozolawulwa. Into ebaluleke kakhulu indawo yephuzu eliphansi ngesikhathi sokulinganisa.
Ukuze sinciphise inani lokuqanjwa komtholo womhlaba, indawo ephansi ye-TDR Probe ivame ukusondela kakhulu kwi-PROPE PURE. Ngakho-ke, ibanga nendlela phakathi kwephuzu lokulinganisa lesiginali kanye nephuzu lomhlabathi esigqeni sokuhlola kufanele kuhambisane ne-probe esetshenzisiwe.
4. Ngokwakheka okuphezulu kwe-PCB, indawo engenalutho yesendlalelo sesiginali ingahlanganiswa ne-zethusi, futhi kufanele kusatshalaliswe kanjani engcupheni ye-post yesiginali emhlabathini nasekunikezelweni kwamandla?
Ngokuvamile, ukugcwala kwethusi endaweni engenalutho kususwe kakhulu. Vele unake ibanga phakathi kwethusi nomugqa wesiginali lapho usebenzisa ithusi eliseduze nomugqa wesiginali onesivinini esikhulu, ngoba ithusi elisetshenzisiwe lizonciphisa ukungcola kwesimo sokulandela umkhondo. Futhi qaphela ukuthi ungasithinti isimo sokuvikelwa kwezinye izingqimba, ngokwesibonelo esakhiweni somugqa weminyaka emibili.
5. Kungenzeka yini ukusebenzisa imodeli ye-MicroSCRIP Line ukubala ukungcola okusobala komugqa wesiginali endizeni yamandla? Ngabe isiginali phakathi kokunikezwa kwamandla nendiza yomhlabathi ibalwa kusetshenziswa imodeli ye-stripline?
Yebo, indiza yamandla nendiza yomhlaba kufanele kubhekwe njengezindiza zereferensi lapho zibala ukungcola okubalulekile. Isibonelo, ibhodi elinama-under ezine: ungqimba olungaphezulu-ungqimba olungaphansi-phansi ungqimba olungezansi. Ngalesi sikhathi, imodeli yokuvimbela isimilo yesendlalelo esiphezulu yimodeli ye-MicroSTrip enezindiza zamandla njengendiza yereferensi.
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Ngokuvamile, noma ngabe isoftware ikhipha ngokuzenzakalelayo amaphuzu okuhlola ukuze ahlangabezane nezidingo zokuhlola kuya ngokuthi ukucaciswa kokwengeza amaphuzu okuhlola kuhlangabezana nezidingo zemishini yokuhlola. Ngaphezu kwalokho, uma izintambo ziminyene kakhulu futhi imithetho yokwengeza amaphuzu wokuhlola iqinile, kungahle kungabikho ndlela yokufaka ngokuzenzakalelayo amaphuzu wokuhlola kulayini ngamunye. Vele, udinga ukugcwalisa izindawo ukuze zihlolwe.
7. Ngabe ukufaka amaphuzu okuhlola kuthinta ikhwalithi yamasiginali aphezulu aphezulu?
Noma ngabe kuzothinta ikhwalithi yesiginali kuncike endleleni yokwengeza amaphuzu wokuhlola nokuthi isiginali ishesha kangakanani. Ngokuyisisekelo, amaphuzu angeziwe wokuhlola (ungasebenzisi i-PIN ekhona noma ye-DIP njengamaphoyinti wokuhlola) angangezwa kulayini noma adonsele umugqa omfushane kusuka kulayini.
Okwedlule kulingana nokwengeza i-capacitor encane emgqeni, kanti eyokugcina igatsha elengeziwe. Zombili lezi zimo zizothinta isibonakaliso esiphakeme kakhulu noma ngaphansi, futhi ubukhulu bomphumela buhlobene nejubane lemvamisa yesiginali kanye nezinga lomkhawulo wesiginali. Ubukhulu bomthelela bungaziwa ngokusebenzisa ukumbumbuluzwa. Ngokuyinhloko, incane iphuzu lokuhlola, elingcono (Yebo, kufanele lihlangabezane nezidingo zethuluzi lokuhlola) lifushane igatsha, elingcono.
