Makhalidwe a PCB:
1. Nthawi zonse, zigawo zonse ziyenera kukonzedwa pamtunda womwewo wa bolodi la dera.Zida zina zokhala ndi kutalika kochepa komanso kutentha kochepa, monga ma chip resistors, chip capacitors, ndi Chip ICs zimayikidwa pansi.
2. Pansi pa malo owonetsetsa kuti magetsi akugwira ntchito, zigawozo ziyenera kuikidwa pa gridi ndi kukonzedwa mofanana kwa wina ndi mzake kapena vertically kuti zikhale bwino komanso zokongola.Kawirikawiri, zigawo siziloledwa kuti zigwirizane;zigawozo ziyenera kukonzedwa bwino, ndipo zigawozo ziyenera kukonzedwa pa dongosolo lonse.Kugawa kofanana ndi kusasunthika kosasintha.
3. Kutalikirana kochepa pakati pa mapepala oyandikana nawo a zigawo zosiyanasiyana pa bolodi lozungulira kuyenera kukhala pamwamba pa 1MM.
4. Mtunda wochokera pamphepete mwa bolodi la dera nthawi zambiri umakhala wosachepera 2MM.Mawonekedwe abwino kwambiri a board board ndi rectangle yokhala ndi gawo la 3: 2 kapena 4: 3.Pamene kukula kwa bolodi wozungulira ndi wamkulu kuposa 200MM ndi 150MM, gulu dera akhoza kunyamula Mphamvu Mechanical.
Malingaliro a PCB Design
(1) Pewani kukonza mizere yofunikira pamphepete mwa PCB, monga wotchi ndi ma siginecha.
(2) Mtunda pakati pa waya wapansi wa chassis ndi mzere wa chizindikiro ndi osachepera 4 mm;sungani gawo la waya wa chassis pansi pa 5: 1 kuti muchepetse mphamvu ya inductance.
(3) Gwiritsani ntchito LOCK kuti mutseke zida ndi mizere yomwe malo awo atsimikiziridwa, kuti asasokonezedwe m'tsogolomu.
(4) M'lifupi mwake wa waya sayenera kuchepera 0.2mm (8mil).M'mabwalo osindikizira kwambiri komanso olondola kwambiri, m'lifupi ndi matayala a mawaya nthawi zambiri amakhala 12mil.
(5) Mfundo za 10-10 ndi 12-12 zitha kugwiritsidwa ntchito pa waya pakati pa zikhomo za IC za phukusi la DIP, ndiye kuti, mawaya awiri akadutsa pakati pa zikhomo ziwirizo, kutalika kwa pedi kumatha kukhala 50mil, ndipo mzere m'lifupi ndi mizere katayanitsidwe onse 10mil, pamene waya mmodzi yekha kudutsa pakati mapini awiri, pedi awiri akhoza kukhala 64mil, ndipo mzere m'lifupi ndi mizere katayanitsidwe onse 12mil.
(6) Pamene m'mimba mwake wa pedi ndi 1.5mm, kuti kuonjezera peeling mphamvu ya pedi, mungagwiritse ntchito yaitali zozungulira PAD ndi kutalika osachepera 1.5mm ndi m'lifupi 1.5mm.
(7) Kukonzekera Pamene zizindikiro zomwe zimagwirizanitsidwa ndi mapepala zimakhala zopyapyala, kugwirizana pakati pa mapepala ndi zowonongeka ziyenera kupangidwa mu mawonekedwe a dontho, kotero kuti mapepalawo sali ophweka kupukuta ndipo zizindikiro ndi mapepala zimakhala zosavuta kuzidula.
(8) Popanga zotchingira zamkuwa zazikulu, pazikhala mazenera pazitsulo zamkuwa, mabowo ochotsa kutentha awonjezeredwe, ndipo mazenera apangidwe kukhala mauna.
(9) Kufupikitsa kulumikizana pakati pa zigawo zapamwamba kwambiri momwe mungathere kuti muchepetse magawo awo ogawa komanso kusokoneza kwamagetsi.Zigawo zomwe zimatha kusokoneza sizingakhale zoyandikana kwambiri, ndipo zolowetsa ndi zotulutsa ziyenera kusungidwa kutali momwe zingathere.
Nthawi yotumiza: Apr-14-2023