Iyini i-Zero PCB? Umhlahlandlela Olungele Abaqalayo kumabhodi we-DIY Prototyping

Isingeniso

I-PCB eyiziro iyibhodi ye-prototyping yenhloso evamile enegridi yezimbobo ezibhojwe ngaphambili ngaphandle kwemikhondo yethusi echazwe ngaphambilini. Ngokungafani namabhodi esekethe aphrintiwe anomzila ongaguquki, i-PCB eyiziro ivumela onjiniyela nabazithandayo ukuklama amasekhethi angokwezifiso ngokuxhuma izingxenye ngokwenza ngokusoda.

Kungani ama-PCB angama-Zero Adumile ku-Prototyping

Ama-PCB angekho asebenza njengamathuluzi abalulekile okufunda nge-elekthronikhi kanye nokwenza ama-prototyping ngokushesha. Ahlanganisa igebe phakathi kokuhlolwa kwebhodi lokugaya kanye nokukhiqizwa kwe-PCB kobungcweti , enikeza ikhambi elihlala njalo kodwa eliguquguqukayo lokuthuthukiswa kwesekethe. Abafundi, onjiniyela, kanye nabenzi bathembele kula mabhodi ukuqinisekisa imiklamo ngaphambi kokuzibophezela ekwakhiweni ngokwezifiso.

I-Zero PCB vs I-Standard Manufactured PCB

Ama-PCB ajwayelekile aqukethe ama-trace ethusi aqoshwe efektri, ama-solder mask, kanye nezimpawu zesikrini sesilika ezenzelwe amasekethe athile. Ama-PCB angenalutho, ngokuphambene, ahlinzeka ngama-canvas angenalutho lapho abasebenzisi bechaza khona konke ukuxhumana. Lo mehluko wenza ama-PCB angenalutho afaneleke kuma-prototypes asebenza kanye kuphela kuyilapho amabhodi akhiqizwe ephumelela kakhulu ezindaweni zokukhiqiza.

Lokho Ozokufunda

Lo mhlahlandlela uhlanganisa izisekelo ze-PCB eziziro, izimiso zokusebenza, izinhlobo zebhodi, izinhlelo zokusebenza ezingokoqobo, izinzuzo, imikhawulo, kanye nesiqondiso sokukhetha phakathi kwe-zero PCB prototyping kanye nokukhiqizwa kwe-PCB yangokwezifiso kumaphrojekthi akho.

Iyini i-Zero PCB?

Incazelo kanye namagama

I-PCB eyiziro—ebizwa nangokuthi i-PCB yenhloso evamile, i-perfboard, noma i-dot-matrix PCB—iyibhodi le-prototyping elinezimbobo ezihlukaniswe ngokulinganayo ezizungezwe ngamaphedi ethusi. Iphedi ngalinye lihlala lilodwa ngogesi, linikeza abasebenzisi inkululeko ephelele yokudala noma iyiphi i-topology yesifunda ngokusebenzisa izintambo ezenziwa ngesandla kanye ne-soldering.

Umsuka Wegama elithi "Zero PCB"

Igama elithi "zero" lisho ukungabikho kwesekhethi echazwe ngumkhiqizi. Ngokulandela umkhondo okhishwe ngaphambili onguziro kanye noxhumo olusethiwe kusengaphambili uziro, lawa mabhodi afika njengama-substrates angenalutho. Abasebenzisi bakha amasekhethi ukusuka ekuqaleni, yingakho igama elithi “ziro” libonisa ukuthi akukho ngokwezifiso zasefekthri.

Izimpawu Ezisemqoka

Ama-PCB angu-Zero abelana ngezici ezimbalwa ezichazayo:

• Ayikho imikhondo yethusi echazwe ngaphambilini phakathi kwamaphedi;
• Igridi efanayo yezimbobo zokuhlanganisa ingxenye;
• Qedela ukulawula komsebenzisi phezu komzila wesifunda.

Lezi zici ziyazihlukanisa kumabhodi aqondene nohlelo lokusebenza anezakhiwo ezingaguquki.

Izinto Ezivamile

Abakhiqizi bakhiqiza ama-PCB awekho besebenzisa ama-substrate ahlukahlukene. I-fiberglass ye-FR-4 inikeza ukuqina nokumelana nokushisa kwezicelo ezidinga kakhulu. Izinto ze-FR-2 phenolic nezephepha zinikeza izinketho ezingabizi kakhulu zamasekethe alula. Ukukhethwa kwezinto kuncike ezidingweni zokushisa, ukucindezeleka komshini, kanye nemikhawulo yesabelomali.

Isebenza Kanjani I-Zero PCB?

I-Hole Matrix kanye nesikhala

Ama-PCB aziro ajwayelekile asebenzisa izikhala zembobo ezingu-2.54 mm (0.1 intshi), afana nokuphakama kwephini lezingxenye eziningi zembobo ezihlanganisa amasekhethi ahlanganisiwe e-DIP, ama-resistors, nama-capacitor. Lesi sikhala somhlaba wonke siqinisekisa ukuhambisana nezingxenye ezijwayelekile ze-elekthronikhi futhi senza ukubekwa kwengxenye kube lula.

Ukukhweza Ingxenye

Izingxenye zifaka emigodini ukusuka ohlangothini olungaphezulu, ngemikhondo ephumela ohlangothini lwephedi yethusi. Ngemva kokumiswa, i-soldering ivikela izingxenye ngomshini futhi idale ukuxhumana kukagesi kumaphedi. Le ndlela yokufaka i- through-hole ithatha izingxenye eziningi ezihlukene kanye namasekethe amaningi ahlanganisiwe.

Izindlela Zokufaka Izintambo

Umzila wesifunda kuma-PCB ayiziro usebenzisa amasu amaningana. Amabhuloho e-solder axhuma amaphedi aseduze ngqo. Izintambo ze-Jumper zixhuma izindawo ezikude zisebenzisa intambo yokuxhumanisa evalekile. Intambo yethusi engenalutho edayiselwe emigqeni yephedi idala ukuxhumana kwamabhasi. Indlela ngayinye ifanela ukuminyana kwesekethe ehlukene kanye namazinga ayinkimbinkimbi.

Design Ukuvumelana nezimo

Ukungabi bikho kokulandelelwa okugxilile kunika amandla ukuguqulwa kwesekethe yesikhathi sangempela phakathi nokuhlanganisa. Onjiniyela bangalungisa izakhiwo, bengeze izingxenye, noma bakhiphe umzila kabusha ngaphandle koku-oda amabhodi amasha. Lokhu kuzivumelanisa nezimo kwenza ama-PCB aziro abe yigugu ekuthuthukisweni okuphindaphindayo namasekhethi okuhlola.

Izinhlobo ze-Zero PCBs

I-PCB enguZiro Ehlangothini Olulodwa

Ama-PCB aziro anohlangothi olulodwa afaka amaphedi ethusi endaweni eyodwa kuphela. Lawa mabhodi ahambisana namasekhethi alula anokuxhumana okuncane okuwela. Izindleko zabo eziphansi kanye nokuhlangana okuqondile kubenza babe izinqumo ezidumile zamaphrojekthi ayisisekelo we-DIY electronics kanye nezinhlelo zokusebenza zemfundo.

I-PCB enguziro enezinhlangothi ezimbili

Okuhlukile okunezinhlangothi ezimbili kunikeza amaphedi ethusi kuzo zombili izindawo, okwandisa kakhulu izinketho zomzila. Ukucwenga ngembobo kungase kuxhume izendlalelo ezingaphezulu nezingaphansi. Lawa mabhodi amukela amasekhethi ayinkimbinkimbi lapho umzila wohlangothi olulodwa ubonisa ukungenele noma udala ukuwela izintambo ngokweqile.

I-Stripboard (i-Veroboard)

Ama-stripboards anemicu yethusi eqhubekayo esebenza emigqeni ehambisanayo kunamaphedi angawodwa. Lokhu kulungiselelwa kwenza ukuxhumeka kwamabhasi kube lula futhi kufanelane namasekhethi anomzila ovamile. Abasebenzisi basika imicu lapho kudingeka khona ukuzihlukanisa. Isakhiwo esihleliwe sizuzisa i-prototyping ehleliwe enezindlela zesignali ezicacile.

I-Matrix Perforated Board

Amabhodi anezimbobo ze-matrix agcina amaphedi angawodwa kuyo yonke indawo yembobo, enikeza inkululeko enkulu yokuklama. Akukho ukuxhumana okuchazwe ngaphambilini okukhona phakathi kwanoma yimaphi amaphuzu. Lolu hlobo ludinga izintambo ezengeziwe ezenziwa ngesandla kodwa luvumela noma iyiphi i-topology yesifunda ngaphandle kokuguqulwa kokusika umkhondo.

Ibhodi lesinkwa vs Zero PCB

Amabhodi esinkwa avumela ukuxhumana okungenasoda, okungasetshenziswa kabusha okulungele ukuhlolwa kwesikhashana. Ama-PCB angenalutho adala izinhlangano ezihlanganisiwe ezihlala njalo zama-prototypes aqediwe. Khetha amabhodi esinkwa ukuze kuhlolwe ngokushesha kanye nama-PCB angenalutho lapho amasekethe edinga ukuqina, ukuthembeka, noma ukuthunyelwa ngaphandle kwelebhu.

Izicelo Ezivamile Zero PCBs

Amaphrojekthi Kagesi Wezemfundo

Ama-Zero PCB ahlinzeka ngamapulatifomu okufunda asebenzayo kubafundi abafunda izisekelo ze-elekthronikhi. Ukwakha amasekethe ngesandla kuqinisa imiqondo yemfundiso, kuthuthukisa amakhono okunamathisela, futhi kufundisa amasu okuxazulula izinkinga ukuhlanganiswa kwe-PCB okuzenzakalelayo okungenakukwazi ukuwaphinda.

Izifunda ze-Low-Volume Prototype

Onjiniyela basebenzisa ama-PCB angekho ukwakha ama-prototype asebenzayo ngaphambi kokutshala imali ekwakhiweni kwe-PCB ngokwezifiso. Lawa mabhodi aqinisekisa ukusebenza kwesekethe, athole amaphutha okuklama, futhi avumele ukuphindaphinda okusheshayo ngaphandle kwesikhathi sokuhola kanye nezindleko zamabhodi akhiqiziwe.

Ukuhlola Izifunda ze-Analog neDijithali

Amasekethe e-analog alula njengama-amplifiers nezihlungi, kanye nengqondo eyisisekelo yedijithali, i-prototype ngempumelelo kuma-PCB ayiziro. Amasekhethi okuhlola ama-sensor interfaces, isimo sesignali, nama-microcontroller peripherals ngokuvamile asebenzisa lawa mabhodi phakathi nezigaba zokuthuthukiswa.

Ukulungisa, Ukuguqulwa, kanye Nokuhlolwa kwe-IoT

Ama-PCB ayiziro anikezela ngezinhlelo zokulungisa lapho amasekhethi ashintshayo engatholakali. Baphinde basekele ukuguqulwa kwamamojula kanye nokuhlolwa okuncane kwe-IoT. Abakhi bokuzilibazisa bavamise ukukhetha lawa mabhodi wamanodi ezinzwa ngokwezifiso, izilawuli, namadivayisi kagesi aphuma kanye.

Izinzuzo Zero PCBs

Qedela Isakhiwo Esivumelana nezimo

Ama-PCB ayiziro awabeki imigoqo ku-topology yesifunda. Abasebenzisi baklama noma yisiphi isakhiwo esilingana nendawo etholakalayo. Le nkululeko isekela imiklamo engajwayelekile, izinguquko zomzuzu wokugcina, nezixazululo zokudala ezingenakwenzeka ngamabhodi okulandelela okungaguquki.

Izindleko Eziphansi Nokutholakala Okubanzi

Ama-PCB ayiziro abiza kancane kakhulu kunamabhodi enziwe ngokwezifiso, ikakhulukazi amayunithi angawodwa. Abahlinzeki bezinto zikagesi emhlabeni wonke bathengisa osayizi abahlukahlukene nezinhlobo. Lokhu kufinyeleleka kwenza i-prototyping ifinyeleleke kwabathanda ukuzilibazisa, abafundi, kanye namaphrojekthi okuthuthukisa agxile kwisabelomali.

I-Prototyping Esheshayo Ngaphandle Kwe-Design Software

Ukwakha kuma-PCB ayiziro akudingi isoftware ye-CAD, ukukhiqizwa kwefayela le-Gerber, noma ukuhlanganiswa kokukhiqiza. Onjiniyela bangasuka ngokuqondile kumjikelezo wohlelo baye endaweni ebonakalayo, behlise isikhathi sokuthuthuka ngokumangalisayo emsebenzini wobufakazi bomqondo kanye nokwakhiwa kokuhlola.

Ilungele Ukufunda Nokuhlola

Inqubo yokwakha okwenziwa ngesandla ithuthukisa amakhono abalulekile okuhlanganisa ukuhlonza ingxenye, indlela yokuhlanganisa, nokuxazulula izinkinga ngendlela ehlelekile. Lezi zinzuzo zemfundo zenza ama-PCB angabi nazo izinkundla ezikhethwayo zezifundo ze-electronics nokufunda okuziqondise ngokwakho.

Imikhawulo yama-Zero PCB

Ayilungele Imiklamo Eminyanisa Kakhulu noma Yejubane Eliphezulu

Ama-PCB ayiziro awakwazi ukwamukela izingxenye ezikhweza phezulu ezinemikhondo eqondile noma ama-ball-grid array. Amasekhethi edijithali anesivinini esikhulu ahlushwa yizithiyo ezingalawuleki kanye namandla e-parasitic ngokweqile atholakala ezindleleni zezintambo ezenziwa ngesandla.

Ukuhamba Ngesandla Kwenyusa Ingozi Yephutha

Ukuxhuma ngezintambo ngesandla kwethula amathuba amaphutha: umzila ongalungile, amajoyinti abandayo e-solder, namabhuloho ngengozi phakathi kokulandela umkhondo. Izifunda eziyinkimbinkimbi zidinga ukunakwa ngokucophelela nokuhlolwa okuphelele ukuze kuzuzwe ukusebenza okuthembekile.

Ayikho Imaski ye-Solder, isikrini sikasilika, noma i-Controlled Impedance

Izici ze-PCB ezichwepheshile ezifana namamaski avikelayo, izikrini zokulebula izingxenye zesilika, nemikhondo elawulwa yi-impedance azikho kuma-PCB aziro. Le mikhawulo ithinta ukuhlangana kalula, imibhalo, nokufaneleka kwe-RF ebucayi noma izinhlelo zokusebenza zamafrikhwensi aphezulu.

Ukuthembeka kanye Nezingqinamba Zokushisa

Ukuthembeka kwesifunda kuncike ngokuphelele kwikhwalithi yomhlangano nekhono lomsebenzisi. Ukusebenza okushisayo kuhlushwa indawo yethusi elinganiselwe kanye nokusakazeka okungalungile kokushisa. Izinhlelo zokusebenza zamanje zingase zidinge ukuphathwa kokushisa okungeziwe okungaphezu kwalokho okunganikezwa ama-PCB ayiziro.

Amathiphu Awusizo Okusebenzisa Ama-PCB Angenaziro

Hlela Ngaphambi Kokuhlanganisa

Sketch ukubekwa kwengxenye nezindlela zomzila ngaphambi kokushisisa i-ayina yokusoda. Ukuhlela kuvimbela izakhiwo eziminyene, kunciphisa ukuwela izintambo, futhi kuhlonze izinkinga ezingaba khona kusenesikhathi. Ngisho nezifunda ezilula ziyazuza ekuhleleni ngamabomu.

Nciphisa Ubude Bezintambo Futhi Sebenzisa Ukubhala Umbala

Gcina izintambo zesignali zimfushane ukuze unciphise ukuzwakala komsindo kanye ne-parasitic inductance. Sebenzisa izintambo ze-jumper ezinemibala enemibala ngokungashintshi—ezibomvu ukuze zibe namandla, zibe mnyama ngokuphansi, nemibala ehlukile kumasignali ahlukene. Lo mkhuba wenza kube lula ukuxazulula izinkinga nokubhala imibhalo.

Vikela Izingxenye Futhi Uhlole Amalunga

Faka i-adhesive ukuze uzinzise izingxenye ezinzima ngaphambi kwe-soldering. Hlola wonke amajoyinti e-solder ukuze uthole amabhuloho, uxhumo olubandayo, nokumanzisa okunganele. Ukuqinisekiswa kwe-Methodical kubamba izinkinga ngaphambi kokukhanyisa futhi kuvimbela umonakalo ovela kumasekhethi amafushane.

Qala ngokulula

Abaqalayo kufanele baqale ngamabhodi e-matrix anohlangothi olulodwa kanye namasekhethi anobunzima obuphansi. Yakha ukuzethemba ngamaphrojekthi aphumelele ngaphambi kokuzama izakhiwo eziminyene noma izinhlelo zokusebenza ezibucayi. Ukuzizwisa kuthuthukisa amakhono adingekayo ukuze kube nenselele enkulu ye-PCB eyiziro.

Isiphetho

Ama-PCB angu-Zero ahlinzeka onjiniyela ngenkundla eguquguqukayo nesebenzayo yokwakha nokuhlola amasekhethi ezigabeni zokuqala zokuthuthuka. Ngesakhiwo esingenalutho kanye nenkululeko egcwele yomzila, zivumela ukuhlangana okusheshayo, ukuguqulwa, nokuqinisekiswa kwemibono yokuklama ngaphandle kwezinyathelo ezengeziwe zokwenziwa. Ngokuqonda amakhono kanye nemikhawulo yalolu hlobo lwebhodi, onjiniyela bangakwazi ukwenza i-prototype ngokuphumelelayo futhi badlule ekuphindaphindweni ngakunye komklamo ngokuzethemba okukhulu.