PCB mhando yekudzivirira

Mune akareruka mazwi, pcb chengetedzo inogona kutsanangurwa seinotevera:

Pcb wiring furemu yakagadzirirwa nemugadziri wezvinhu zvekunze munzvimbo dzisina kumisikidzwa pabhodhi redunhu, panoteerwa mhangura kana zvimwe zvikamu zvebhodhi redunhu zvinopinda kana kuyambuka. Nzvimbo yacho inogona kana kuve nemhangura uye inogona kunge iine chero chimiro.

Muzviitiko zvakawanda, nzvimbo dzekuchengetedza dzinoshandiswa kuchengetedza dzimwe nzvimbo dzemabhodhi kure kure zvakakwana kubva kune zvimwe zvinhu kudzivirira kana kudzora EMI. Nekudaro, iwo anoshandiswa zvakare kupa kupatsanurana kwe fan-kunze kwekutarisisa yezvinhu zvakasungirirwa pamusoro. Mienzaniso mapurosesa kana FPGas, ayo anowanzo kuve PCB ongororo uye mabhodhi ekuvandudza. Mamwe akajairika marudzi ekuchengetedza akanyorwa pazasi.

Rudzi rwePCB chengetedzo

L kanyanga

Pamwe, mhando yakajairika yekuchengetera ndeyekuchengetedza nzvimbo yemhangura waya yakakomberedza iyoboard kana yakabatana kanyanga kudzivirira EMI kubva mukukanganisa kuvimbika kwechiratidzo chinotapurirana kana kutambirwa. Kugadziriswa kunogona zvakare kuve neiyo antenna wiring kune mamwe macircuit.

L zvikamu

Zvakajairika kuita nzvimbo yeanofarira mafambiro akatenderedza zvinhu (kunyanya maEm radiator). Izvi ndezvechokwadi kune microprocessors, FPgas, AFE uye imwe yepakati kusvika kune yakakwira pini kuverenga zvikamu (zvinowanzo shandiswa pamapakeji mapakeji).

L Plate kumucheto clearance nzvimbo

Chibvumirano cheEdge chakakosha mukugadzira. Kunyanya, mapaneru akapatsanurwa kuita mamwe mapuranga panguva yegungano rePBB. Kuti uite izvi, clearance yakakwana inofanirwa kusiiwa kune wiring kana kurova.

L kuteedzera

Sometimes it may be advantageous to define reservation areas around traces. Dzimwe nguva inoshandiswa kune coplanar yakagadziriswa mitsara yekufambisa kuti iwane impedance inodzorwa.

L kuchera

Mahwendefa mazhinji akaisirwa screws kana mabhaudhi. In these cases, it is helpful to define the spacing around the holes. Insufficient spacing can affect assembly, interrupt circuit operation, and even cause circuit board damage. Kune-maburi-kuburikidza, iwe unowanzo kungoteedzera CM’s DFM mitemo.

L chinongedzo

Depending on the connector type in terms of layout and placement, your board design may need to consider two considerations: the footprint of the connector board and the paneling. Kazhinji, maratidziro echisungo kana plug haina kusanganisira nzvimbo yekunze wiring kana tambo yekubatanidza. Muzviitiko izvi, kuchengetedza mamiriro ezvinhu kwakakosha kuona kuti dunhu racho rinoita sezviri kutarisirwa.

L chinja

Kumwe kushandiswa kwakanaka kwekuchengetera kupa nzvimbo yekuflip kana kufambisa yakatwasuka yakasimudzwa switch.

Chinyorwa chiri pamusoro apa chinopa mamwe marudzi akajairika uye mashandisiro ePBB yekuchengetedza. Mune zvimwe zviitiko, zvakadaro, ungangoda kutsanangura dzakachengetwa nzvimbo. Semuenzaniso, kana dhizaini yako ikashandisa zvinhu; Semuenzaniso, mumashandisi ekushandura, uko kune yakakura impedance mismatch pakati pekuisa uye kuburitsa, dunhu rinogona kunge richikanganiswa nemhinduro ikozvino kuvhuvhuta, saka zvingave zvakakosha kupa inotevera fomu yekudzivirira: pcb yekudzivirira mhete. Kunyangwe isina kuiswa munzvimbo yakachengetedzwa, mhete yekudzivirira inoita sechipingamupinyi chemuviri kuzvinhu zvekunze uye wiring, uye inodzivirira yazvino kubuda kubva munzvimbo. Iye zvino takagadzirira kutarisa maitiro ekuona kuti kuchengetedza kwenzvimbo kunoita basa radzo.

Gara kure nedambudziko

Matanho ekuchengetedza pcb anoshanda chete kana ivo vachizadzisa zvinangwa zvavo. Uku kupa kusarudzika munzvimbo dzakati dzebhodhi kubva kune chero uye zvese zvekunze zvinhu. Kuti uwane izvi, iwe unofanirwa kutevedzera aya akanaka maGooutout nhungamiro.

Pcb yekuchengetedza muyero

L Sarudza kuti nei kuchengetwa kuchidikanwa

L Sarudza kuti ingani nzvimbo inodiwa maererano nekushandisa

L Shandisa mamakisi ekudhinda mamaki kuti uone nzvimbo dzekuchengetedza

L Ita shuwa kuti dhizaini yako yekugadzira ine ruzivo rwekuchengetedza

Pcb inobata chinhu chakakosha kune yako bhodhi dhizaini, kuona kuti inoita sezvanga zvichitarisirwa. Nekutevera aya marongero uye kushandisa iwo zvizere, iwe unogona kudzivirira maratidziro emakakatanwa uye kugadzirisa PCBA kuvimbika mushure mekuendeswa.