Mwambo Fr-4 Circuit Board Pcb Board

Malamulo Oyamba a PCB Layout

1. Kukonzekera molingana ndi gawo la dera, mabwalo ogwirizana omwe amazindikira ntchito yomweyo amatchedwa module, zigawo za gawo la dera ziyenera kutengera mfundo ya ndende yapafupi, ndipo dera la digito ndi dera la analogi liyenera kupatulidwa;
2. Zida ndi zida ziyenera kuyikidwa mkati mwa 1.27mm mozungulira mabowo osakwera monga mabowo oyikapo ndi mabowo wamba, ndipo palibe zigawo zomwe ziyenera kuyikidwa mkati mwa 3.5mm (kwa M2.5) ndi 4mm (kwa M3) kuzungulira mabowo okwera monga zomangira;
3. Pewani kuika vias m'munsimu zigawo zikuluzikulu monga horizontally wokwera resistors, inductors (mapulagi-ins), ndi capacitors electrolytic kupewa madera yochepa pakati vias ndi chigawo chipolopolo pambuyo soldering yoweyula;
4. Mtunda pakati pa kunja kwa chigawocho ndi m'mphepete mwa bolodi ndi 5mm;
5. Mtunda pakati pa kunja kwa chigawo chokwera ndi kunja kwa gawo loyandikana nalo ndi lalikulu kuposa 2mm;
6. Zigawo za zipolopolo zachitsulo ndi zitsulo (mabokosi otetezera, ndi zina zotero) sizingakhudze zigawo zina, ndipo sizingakhale pafupi ndi mizere yosindikizidwa ndi mapepala, ndipo kusiyana kuyenera kukhala kwakukulu kuposa 2mm.Kukula kwa mabowo oyika, mabowo oyikapo zomangira, mabowo owoneka bwino ndi mabowo ena akulu mu mbale ndi wamkulu kuposa 3mm kuchokera m'mphepete mwa mbale;
7. Chinthu chotenthetsera sichingakhale pafupi ndi waya ndi chinthu chotentha;chinthu chotentha kwambiri chiyenera kugawidwa mofanana;
8. Soketi yamagetsi iyenera kukonzedwa mozungulira bolodi losindikizidwa momwe zingathere, ndipo mabasi a mabasi ogwirizanitsidwa ndi socket mphamvu ayenera kukonzedwa kumbali yomweyo.Chisamaliro chapadera chiyenera kuchitidwa kuti musakonzekere zitsulo zamagetsi ndi zolumikizira zina zomwe zimagulitsidwa pakati pa zolumikizira, kuti zithandizire kugulitsa zitsulo izi ndi zolumikizira, kupanga ndi kumangiriza zingwe zamagetsi.Kuyika matayala azitsulo zamagetsi ndi zolumikizira zowotcherera ziyenera kuganiziridwa kuti zithandizire kuyika ndi kuchotsa mapulagi amagetsi;
9. Kukonzekera kwa zigawo zina:
Zigawo zonse za IC zimagwirizanitsidwa pamodzi, polarity ya zigawo za polar imadziwika bwino, ndipo chizindikiro cha polarity pa bolodi lomwelo losindikizidwa sikuyenera kupitirira mbali ziwiri.Pamene mayendedwe awiri akuwonekera, mbali ziwirizo zimakhala zogwirizana;
10. Mawaya pa bolodi ayenera kukhala bwino wandiweyani.Pamene kusiyana kwa kachulukidwe kuli kwakukulu kwambiri, kuyenera kudzazidwa ndi zojambula zamkuwa zamkuwa, ndipo mauna ayenera kukhala aakulu kuposa 8mil (kapena 0.2mm);
11. Sipayenera kukhala ndi mabowo pa mapepala a patch, kuti apewe kutaya kwa solder phala ndikupangitsa kuti zigawozo zigulitsidwe.Mizere yofunikira yolumikizira sikuloledwa kudutsa pakati pa zikhomo zazitsulo;
12. Chigambacho chimagwirizanitsidwa ndi unilaterally, mayendedwe a khalidwe ndi ofanana, ndipo njira yopakira ndi yofanana;
13. Pazida zokhala ndi polarity, mayendedwe a polarity cholemba pa bolodi lomwelo ayenera kukhala ogwirizana momwe angathere.

PCB Component Routing Malamulo

1. M'dera limene malo opangira mawaya ndi ocheperapo kapena ofanana ndi 1mm kuchokera pamphepete mwa PCB, ndipo mkati mwa 1mm kuzungulira dzenje lokwera, mawaya amaletsedwa;
2. Chingwe chamagetsi chiyenera kukhala chachikulu momwe chingathere ndipo sichiyenera kuchepera 18mil;m'lifupi la mzere wa chizindikiro sayenera kuchepera 12mil;zolowetsa za CPU ndi zotulutsa siziyenera kuchepera 10mil (kapena 8mil);kutalika kwa mizere sikuyenera kuchepera 10mil;
3. Yachibadwa kudzera si osachepera 30mil;
4. Pawiri mu-line: pedi 60mil, pobowo 40mil;
1/4W resistor: 51 * 55mil (0805 pamwamba phiri);pamene ali pamzere, pad ndi 62mil, ndi kabowo ndi 42mil;
Electrodeless capacitor: 51 * 55mil (0805 pamwamba phiri);ikalumikizidwa mwachindunji, pad ndi 50mil, ndipo pobowo ndi 28mil;
5.Zindikirani kuti waya wamagetsi ndi waya wapansi ayenera kukhala ngati radial momwe angathere, ndipo chingwe chachitsulo sichiyenera kutsekedwa.

Chiwonetsero cha Fakitale