Yakwana nthawi ya ma pcb board kuyendera kuti mumvere tsatanetsatane kuti mukhale okonzeka kwambiri kuti muwonetsetse kuti ntchito yabwino. Mukayang'ana mabodi a PCB, tiyenera kulabadira malangizo 9 otsatira.
1. Ndi zoletsedwa kugwiritsa ntchito zida zoyeserera zoyeserera kuti mugwire TV yamoyo, Audio, video ndi zida zina zam'madzi zapansi pa PCB popanda kusinthira
Ndi zoletsedwa kuyesa mwachindunji TV, Audio, kanema ndi zida zina popanda kusinthika kwamphamvu ndi zida ndi zida zokhala ndi zipolopolo. Ngakhale wolemba mbiri yakale ya Kasutatte ali ndi mphamvu yosinthira mphamvu, mukakumana ndi zida zapadera za TV kapena zomveka bwino.
2. Yang'anirani magwiridwe antchito a chitsulo chogulitsira poyesa ma pCB board
Saloledwa kugwiritsa ntchito chitsulo chogulitsa ndi mphamvu. Onetsetsani kuti chitsulo chogulitsidwa sichinanenedwe. Ndikofunika kuyika chipolopolo cha chitsulo chogulitsa. Samalani mosamala ndi Chressity. Ndiko kukhala otetezeka kugwiritsa ntchito magetsi ochepera 6 ~ 8v.
3. Dziwani mfundo zogwirira ntchito zophatikizira ndi mabwalo okhudzana ndi masitepe a PCB
Asanayang'anire ndi kukonza zomwe zikuphatikizidwa, muyenera kudziwa bwino ntchito ya dissii yomwe imagwiritsidwa ntchito, magetsi a magetsi, ndi magetsi wamba, ndi mfundo yogwiritsira ntchito madera omwe ali ndi zigawo zokhumudwitsa. Ngati mikhalidwe yomwe ili pamwambapa yakumana, kusanthula ndi kuyendera kumakhala kosavuta.
4. Osayambitsa mabwalo afupiafupi pakati pa zikhomo poyesa PCB
Mukayeta magetsi kapena kuyesa funde ndi proberi ya oscillososcope ya oscilloscoscope, osayambitsa dera pakati pa zikhomo zophatikizira chifukwa cha mayeso omwe amatsogolera kapena kukayika. Ndikofunika kuyeza pa zotumphukira zosindikizidwa zolumikizidwa mwachindunji ndi zikhomo. Gawo lililonse lalifupi limatha kuwononga mosavuta dera lomwe laphatikizidwa. Muyenera kusamala kwambiri mukamayesa ma cmos athyathyathya.
5. Kukana kwamkati kwa chipangizo cha PCB Board kuyenera kukhala lalikulu
Tikayeza magetsi a DC zikhomo za iC iC, zolimba ndi kukana mkati mwa 20k / v kuyenera kugwiritsidwa ntchito, apo ayi pakhale cholakwika chachikulu cha zikhomo.
6. Yang'anirani kusamalira kutentha kwa madera ophatikizira mukamayesa mabodi a PCB
Madera omwe adaphatikizira kuyenera kusintha kutentha, ndipo saloledwa kugwira ntchito pansi pa mphamvu yopanda kutentha.
7. Waya wotsogola wa PCB Board ayenera kukhala oganiza bwino
Ngati mukufuna kuwonjezera zinthu zakunja kuti musinthe gawo lomwe laphatikizidwa, zigawo zing'onozing'ono ziyenera kusankhidwa, ndipo zigawozo ziyenera kukhala zomveka popewa kuphatikizidwa kosafunikira ndi kutha kwa zigawo zingapo.
8. Onani bolodi ya PCB kuti muwonetsetse bwino
Wogulitsa, wogulitsayo ndi wolimba, ndipo kudziunjikira kwa msirikali ndi ma pore akhoza kuyambitsa msinkhu wabodza. Nthawi yogulitsa nthawi zambiri imaposa masekondi atatu, ndipo mphamvu ya chitsulo iyenera kukhala pafupifupi 25 yotentha. Madera omwe adaphatikizidwa omwe adagulitsidwa ayenera kuyesedwa mosamala. Ndikofunika kugwiritsa ntchito mawu okwana mawu kuti muyeze kalitsidwe pakati pa zikhomo, onetsetsani kuti palibe msilikali, kenako tembenuzani mphamvu.
9. Osazindikira mosavuta kuwonongeka kwa dera lophatikizidwa poyesa bolodi ya PCB
Osaweruza kuti dera lophatikizidwa lawonongeka mosavuta. Chifukwa choti madera ambiri omwe aphatikizidwa amaphatikizidwa mwachindunji, nthawi yomweyo dera likasintha, ndipo zosinthazi sizingoyambitsa chifukwa chowonongeka kwa gawo lomwe laphatikizidwa. Kuphatikiza apo, nthawi zina, magetsi oyesedwa ndi pini iliyonse ndi osiyana ndi nthawi yomwe imagwirizana kapena pafupi, silingatanthauze nthawi zonse. Chifukwa zolakwa zofewa sizingasinthe kusintha kwa DC Vorusege.
Njira ya PCB Board
Kwa pcb yatsopano yomwe yangobwezeredwa kumene, tiyenera kuona ngati pali zovuta pa bolodi, monga kuti ndizofunikira, mabwalo otseguka, malo otseguka ndi okulirapo.
Kwa bolodi yopanga madera atsopano, kusinthana nthawi zambiri kumakumana ndi zovuta zina, makamaka ngati bolodi ikakhala yayikulu ndipo pali zigawo zambiri, nthawi zambiri zimakhala zosatheka kuyamba. Koma ngati mungatchule njira zomveka zobwezera, kusintha komwe kumapangitsa kawiri zotsatira ndi theka la khama.
PCB Board Stingsing Masitepe
1. Kwa pcb yatsopano yomwe yangobwezeretsedwa, tifunika kuwona ngati pali zovuta pa bolodi, monga kuti pali zotheka, mabwalo otseguka, ndi nthaka ndi yayikulu.
2. Kenako zigawozo zaikidwa. Ma module odziyimira pawokha, ngati simukutsimikiza kuti amagwira ntchito moyenera, ndibwino kuti musayikenso onse, koma kukhazikitsa mbali zochepa (kuti zisankhire onse nthawi imodzi), kuti ndikosavuta kudziwa bwino. Pewani kukhala ndi vuto kuyamba mukakumana ndi mavuto.
Nthawi zambiri mutha kukhazikitsa magetsi koyamba, kenako mphamvu pakuwona ngati mphamvu yamagetsi yotulutsa ndizabwinobwino. Ngati simukhala ndi chidaliro chochuluka mukamatha (ngakhale mutakhala otsimikiza, tikulimbikitsidwa kuti muwonjezere fuse, tingoganizirani za mphamvu zoyendetsedwa ndi mphamvu zoyendetsedwa ndi zomwe sizingatheke.
Imbani kuteteza kwambiri poyamba, kenako pang'onopang'ono kuwonjezera mtengo wamagetsi wa magetsi oyendetsedwa, ndikuwunikira zomwe zalembedwapo, kuyika magetsi apano, ndi magetsi otulutsa. Ngati palibe chitetezo chopitilira muyeso komanso mavuto ena pakusintha kwakukulu, ndipo magetsi otulutsa afika bwino, magetsi ali bwino. Kupanda kutero, pezani mphamvu zophera, pezani cholakwika, ndipo bwerezani zomwe zili pamwambapa mpaka magetsi ali bwinobwino.
3. Kenako, ikani ma module ena pang'onopang'ono. Nthawi iliyonse gawo la gawo laikidwa, mphamvu pakuyesera ndikuyesa. Mukamaumba, tsatirani njira zomwe zili pamwambazi kuti mupewe kwambiri chifukwa cha zolakwa ndi / kapena zolakwa za kuyika ndikuwotcha zigawo.
Njira yopezerapo zolakwitsa PCB
1. Pezani zolakwitsa PCB PCB poyesa njira yamagetsi
Chinthu choyamba kutsimikizira ndichakuti ngati voliyumu ya chipiro chilichonse cha chip ndichabwino, onaninso ngati mavadzi osiyanasiyana ndi abwinobwino, ndipo ngati magetsi ogwiritsira ntchito mfundo iliyonse ndiabwinobwino. Mwachitsanzo, pamene Inducton Inducon imayatsidwa, voliyumu ya Juniction ili pafupi 0.7v, pomwe ma voliyumu voliyumu ya 0,3V kapena kuchepera. Ngati kupezeka voliyumu ya trastistor yoposa 0.7V (kupatula ma transministrader apadera, monga Darlirton, etc.), kukhala chimbalangondo chikhoza kukhala chotseguka.
2. Njira ya jekeseni ya jakisoni kuti mupeze zolakwitsa PCB
Onjezani gwero la siginecha ku masitima azolowera, kenako yeretsani mfundo iliyonse kuti muwone ngati sizachilendo kupeza cholakwika. Nthawi zina tidzagwiritsa ntchito njira zosavuta, monga kunyamula tweenzi ndi manja athu, kuti akhudze mabwalo a mabwalo, omwe nthawi zambiri amatha kugwiritsidwa ntchito mabwalo a mabwalo, apo ayi amatha kuyambitsa magetsi magetsi). Ngati palibe kuyankha kwa gawo lakale, koma pamakhala yankho ku gawo lina, zikutanthauza kuti vutoli lili mu gawo lomwe lapita mu gawo lakale ndipo liyenera kufufuzidwa.
3. Njira zina zopezera mabodi olakwika a PCB
Pali njira zambiri zopezera zolakwika, monga kuwonera, kumvetsera, kununkhiza, kukhudza, ndi zina zambiri.
"Kuwona" ndikuwona ngati pali zowonongeka zilizonse zowonongeka kwa chinthucho, monga kusokonekera, kuyaka, kuwonongeka, etc.;
"Kumvera" ndiko kumvetsera ngati phokoso lantchito sikwachilendo, mwachitsanzo, chinthu chomwe sichiyenera kulira, malo omwe akuyenera kulira sichikulira kapena mawu.;
"Kununkhira" ndikuwona ngati pali fungo lanyengo, monga kununkhira kwa kuyatsa, kununkhira kwa ogwira ntchito zamagetsi, ali ndi chidwi kwambiri ndi fungo;
"Kukhudza" ndiko kuyesa ngati kutentha kwa chipangizocho sikwachilendo, mwachitsanzo, kutentha kwambiri kapena kuzizira kwambiri.
Zipangizo zina zamagetsi zidzatenthedwa akamagwira ntchito. Ngati akuzizira kukhudza, zitha kuweruzidwa kuti sizikugwira ntchito. Koma ngati malo omwe sayenera kukhala otentha ndi otentha kapena malo omwe akuyenera kukhala otentha atentha kwambiri, yemwe sagwira ntchito. General Post in transistars, magetsi a mphamvu ya magetsi, etc., kugwira ntchito pansi pa madigiri 70 kuli bwino. Kodi lingaliro la madigiri 70 ndi chiyani? Mukakanikizani dzanja lanu, mutha kuchigwira kwa masekondi opitilira katatu, zikutanthauza kuti matenthedwe ali pansi pa madigiri 70 (onani kuti uzikhudze kaye, ndipo osawotcha manja anu.