Tixgelinnada soo socda ayaa inta badan la tixgeliyaa marka la samaynayo qaybaha PCB.

1. Ma qabtaa Guddiga PCB qaab u dhigma mashiinka oo dhan?

2. Kala fogaanshaha qaybaha ma macquul baa? Ma jiraa heer ama khilaaf khilaaf?

3. PCB ma u baahan yahay in la sameeyo? Geesta geedi socodka ma la hayaa? Godadka dhejinta ma la hayaa? Sida loo diyaariyo godadka meelaynta?

4. Sidee loo dhigaa oo loo kululeeyaa qalabka korontada?

5. Ma habboon tahay in la beddelo qaybaha u baahan in marar badan la beddelo? Qaybaha la hagaajin karo ma yihiin kuwo si sahlan loo hagaajin karo?

6. Ma la tixgeliyaa masaafada u dhexaysa curiyaha kuleylka iyo kuleylka?

7. Sidee buu yahay waxqabadka EMC ee guddiga oo dhan? Sidee qaab-dhismeedku si wax ku ool ah kor ugu qaadi karaa awoodda faragelinta ka-hortagga?

Dhibaatada kala -fogaanshaha u dhexeeya qaybaha iyo qaybaha, oo ku saleysan shuruudaha masaafada ee baakadaha kala duwan iyo astaamaha Altium Designer lafteeda, haddii xaddidaadda ay dejisay xeerar, goobtu waa mid aad u adag oo ay adag tahay in la gaaro. Layn ayaa lagu sawiray lakabka farsamada si loo muujiyo cabbirrada sare ee qaybaha, sida lagu muujiyey Jaantuska 9-1, si marka qaybaha kale ay u soo dhowaadaan, baaxadda qiyaasta la garanayo. Tani waa mid aad wax ku ool u ah bilowga ah, laakiin sidoo kale awood u bilowga ah si ay u horumariyaan caadooyinka design PCB wanaagsan.

Caqabadaha ku jira qaabka PCB

Jaantuska 9-1 Fiilada farsamada gacanta

Iyada oo ku saleysan tixgelinta iyo falanqaynta kore, mabaadi’da xannibaadda qaabeynta PCB -ga ayaa loo kala saari karaa sida soo socota.

Mabda’a diyaarinta xubinta

1. Xaaladaha caadiga ah, dhammaan qaybaha waa in lagu habeeyo isla dusha PCB. Kaliya marka qaybta sare ay aad u cufan tahay, qaybo ka mid ah oo leh dherer xaddidan iyo qiime calool -yar (sida iska -caabbinta chip, karti -jabinta, chip IC, iwm) ayaa lagu dhejin karaa lakabka hoose.

2. On the premise of ensuring the electrical performance, the components should be placed on the grid and arranged parallel or vertically to each other in order to be neat and beautiful. Xaaladaha caadiga ah, qaybaha looma oggola inay is -dhaafaan, habaynta qaybaha waa inay ahaadaan kuwo is -haysta, qaybaha wax -soo -gelinta iyo qaybaha wax -soo -saarka intii suurtogal ah marka laga reebo midba midka kale, ha u muuqan is -dhaafsi.

3, waxaa jiri kara danab sare oo u dhexeeya qaybo ama fiilooyin, waa inay kordhiyaan masaafadooda, si aysan u keenin wareeg gaaban oo shil ah oo sabab u ah dheecaan, burburin, qaab -dhismeed intii suurtogal ah si aad ugu fiirsato qaabeynta meelahan calaamadaha.

4. Qaybaha leh danab aad u sarreeya waa in loo diyaariyaa sida ugu macquulsan meelaha aan si sahlan gacanta loogu heli karin inta lagu guda jiro khaladka.

5, oo ku yaal cidhifka qaybaha saxanka, waa inay isku dayaan inay ka sameeyaan laba dhumuc oo saxan cidhifka saxanka.

6, qaybaha waa in si siman loogu qaybiyo guddiga oo dhan, ma aha aaggan cufan, aag kale oo dabacsan, hagaajiya isku halaynta alaabta.

Raac mabda’a qaabeynta jihada signalada

1. Ka dib markaad dhigto qaybaha go’an, u diyaarso jagada unug kasta oo wareeg ah oo shaqaynaya midba sida waafaqsan tilmaanta tilmaanta, iyada oo qaybta ugu muhiimsan ee wareeg kasta oo shaqeynaya ay xarun u tahay oo ay fuliso qaab -dhismeedka maxalliga ah ee ku xeeran.

2. Qaab -dhismeedka qaybaha waa inuu ahaadaa mid ku habboon socodka signalada, si calaamaduhu u hayaan isla jihada intii suurtogal ah. Xaaladaha badankood, socodka signalada waxaa loo habeeyay bidix ilaa midig ama kor ilaa hoos, iyo qaybaha si toos ah ugu xiran marinnada soo -gelinta iyo soo -saarka waa in la dhigaa meel u dhow soo -xireyaasha iyo soo -saarayaasha wax -soo -saarka ama isku -xirayaasha.

Ka -hortagga faragelinta electromagnetic

Caqabadaha ku jira qaabka PCB

Jaantuska 9-2 Qaab-dhismeedka inductor-ka oo leh inductor-ka oo u dhigma 90 darajo

(1) Qaybaha leh beero elektromagnetic shucaac xoog leh iyo qaybo leh dareen sare u leh soo -gelinta elektromagnetic, masaafada u dhexeysa waa in la kordhiyaa, ama dabool gaashaan waa in loo tixgeliyaa gaashaan -dhigga.

(2) Try to avoid high and low voltage components mixed with each other and strong and weak signal components interlaced together.

(3) for components that will produce magnetic fields, such as transformers, loudspeakers, inductors, etc., attention should be paid to reducing the cutting of magnetic lines on printed wires when layout, and the magnetic field direction of adjacent components should be perpendicular to each other to reduce the coupling between each other. Jaantuska 9-2 wuxuu muujinayaa diyaarinta inductors 90 ° oo u dhiganta inductor-ka.

(4) Ilaha faragelinta gaashaaman ama modules si fudud loo carqaladeeyey, daboolida gaashaanku waa inay si fiican u dhisan tahay. Jaantuska 9-3 wuxuu muujinayaa qorsheynta daboolka gaashaanka.

Cabudhinta faragelinta kuleylka

(1) Walxaha dhaliya kulaylka waa in lagu meeleeyaa meel ku habboon kala -firdhinta kulaylka. Haddii loo baahdo, hiitarka gaarka ah ama marawaxad yar ayaa la dejin karaa si loo yareeyo heerkulka loona yareeyo saamaynta qaybaha deriska, sida ku cad Jaantuska 9-4.

(2) Qaar ka mid ah baloogyada isku-dhafan ee awoodda sare leh, tuubooyinka awoodda sare leh, is-hortaagayaasha, iwm, waa in lagu diyaariyo meelaha kulaylka kala-guurkiisu sahlan yahay, lagana sooco qaybaha kale masaafo cayiman.

Caqabadaha ku jira qaabka PCB

Jaantuska 9-3 Qorshaynta daboolka gaashaanka

Caqabadaha ku jira qaabka PCB

Jaantuska 9-4 Kala-baxa kulaylka ee qaabaynta

(3) Qaybta xasaasiga ah ee kuleylku waa inay u dhowdahay qiyaasta la cabiray kana fogeyso aagga heerkulka sare, si aanay u saamayn waxyaalo kale oo u dhigma awoodda kuleylku ayna keenaan khalkhalka.

(4) Marka curiyaha la dhigo labada dhinac, qaybta kululaynta guud ahaan lama dhigo lakabka hoose.

Mabda’a qaabeynta qaybaha la hagaajin karo

Qaab-dhismeedka qaybaha la isku hagaajin karo sida potentiometers, capacitors variable, gariiradda inductance oo la hagaajin karo iyo furayaasha yaryar waa inay tixgeliyaan shuruudaha dhismaha ee mashiinka oo dhan: haddii mashiinka lagu hagaajiyo bannaanka, booskiisa waa in la waafajiyaa booska bamka hagaajinta ee guddiga chassis; Haddii ay dhacdo hagaajinta mashiinka, waa in lagu dhejiyaa PCB halkaas oo ay fududahay in la hagaajiyo.