PCB ukuhlanganisa izintambo kuyo yonke i-PCB design kubaluleke kakhulu, ukuthi ungayenza kanjani i-wiring esheshayo nephumelelayo, futhi wenze izintambo zakho ze-PCB zibukeke ziphakeme, kufanelekile ukutadisha nokufunda. Kuhlelwe izici ezi-7 ezidinga ukunaka ku-wiring ye-PCB, woza uzohlola bese ugcwalisa izikhala!

Ungayenza kanjani idizayini yakho ye-PCB isebenze kahle

1. Ukucubungula okuvamile komhlaba wesekethe yedijithali kanye nesekethe ye-analog

Ama-PCBS amaningi awaseyona amasekhethi asebenza ngozodwa (edijithali noma i-analog), kepha ayingxube yamasekethe edijithali nawama-analog. Ngakho-ke, lapho kuhlanganiswa izintambo, kudingeka sicabangele ukuphazamiseka phakathi kwabo, ikakhulukazi ukuphazamiseka komsindo kulayini ophansi. Ukuzwela kwamasekethe edijithali aphezulu, amasekethe we-analog, ucingo lwesiginali, imigqa yesiginali ephezulu kakhulu ngangokunokwenzeka kude namadivayisi we-analog abucayi, ngomhlabathi, ukuhambisa i-PCB emhlabeni wangaphandle kuyindlela eyodwa kuphela, ngakho-ke kufanele kube ngaphakathi kokucubungula kwe-PCB, isikhunta sinenkinga, futhi ngaphakathi kwepuleti kuya kwidijithali ne-analog empeleni kuhlukaniswe phakathi kwabo, Kuphela kusixhumi esibonakalayo se-PCB nesangaphandle (njenge-plug, njll.). Kukhona ukuxhumana okuncane phakathi komhlaba wedijithali nomhlabathi we-analog. Qaphela ukuthi kunephoyinti elilodwa lokuxhumeka. Kukhona nokunye okungahambi kahle kwi-PCB, ngokuya ngesakhiwo sesistimu.

2. Ulayini wesiginali ubekwe kungqimba kagesi (phansi)

Ku-wiring ye-multi-layer PCB, ngoba awukho umugqa ophelile osele kusendlalelo somugqa wesiginali, bese ufaka izendlalelo kuzodala imfucuza kuzokhuphula nokukhiqizwa kwenani elithile lomsebenzi, izindleko nazo zanda ngokufanele, ukuze zixazululwe lokhu kuphikisana, ungacabanga ngokufaka izintambo kusendlalelo sikagesi (phansi). Indawo yamandla kufanele ibhekwe kuqala, bese ukwakheka kube kwesibili. Ngoba kungcono ukugcina ukwakheka kahle.

3. Ukucubungula kwemilenze yokuxhuma endaweni enkulu yomqhubi

Endaweni enkulu yokubeka phansi (ugesi), imilenze yezingxenye ezivamile ixhunywe nayo. Ukucubungula kwemilenze yokuxhuma kudinga ukucatshangelwa ngokuphelele. Mayelana nokusebenza kukagesi, amaphedi wemilenze yengxenye axhunywe ngokuphelele nobuso bethusi, kepha kunezingozi ezithile ezifihliwe zenhlangano yezinsimbi zokuhlanganisa, njenge: (1) i-welding idinga i-heater yamandla ephezulu. (2) Kulula ukudala amalunga we-virtual solder. Ngakho-ke, uma ucabangela ukusebenza kukagesi kanye nezidingo zenqubo, yenza iphedi yokushisela esiphambanweni, ebizwa ngesihlangu sokushisa, esaziwa kakhulu ngokuthi yi-Thermal, ukuze ithuba lokushisela okubonakalayo ngenxa yokushiswa ngokweqile kwesigaba ngesikhathi sokushisela kuncishiswe kakhulu. Umlenze kagesi (womhlabathi) we-multilayer uphathwa ngokufanayo.

4. Indima yohlelo lwenethiwekhi ezintanjeni

Kuzinhlelo eziningi ze-CAD, i-wiring inqunywa uhlelo lwenethiwekhi. Igridi iminyene kakhulu, indlela iyandiswa, kodwa isinyathelo sincane kakhulu, ivolumu yedatha yenkambu yegrafu inkulu kakhulu, ezoba nezidingo eziphakeme kakhulu zesikhala sokugcina semishini, kepha futhi inomthelela omkhulu ku isivinini sekhompyutha semikhiqizo ye-elekthronikhi yekhompyutha. Ezinye izindlela azivumelekile, njengalezo ezigcinwe yimigqa yemilenze yento noma ukufaka izimbobo, ukubeka izimbobo, njll. Igridi eyingcosana kakhulu nezindlela ezimbalwa kakhulu zinomthelela omkhulu kuzinga lokusabalalisa. Ngakho-ke, kufanele kube nohlelo lwegridi olufanelekile lokuxhasa izintambo. Imilenze yezinto ezijwayelekile iqhelelene ngo-0.1 intshi (2.54mm), ngakho-ke isisekelo sezinhlelo zegridi kuvame ukuba yi-0.1 inch (2.54mm) noma iziphindaphindo ezihlanganayo ezingaphansi kuka-0.1 inch (isib. 0.05 inch, 0.025 inch, 0.02 inch, njll.) .