Pcb bhodhi design, need to consider the size of PCB board, through the current, choose a suitable line width. PCB copying is also known as PCB copying, PCB cloning, PCB copying, PCB cloning, PCB reverse design or PCB reverse development.

That is, on the premise of having physical electronic products and circuit boards, reverse analysis of circuit boards is carried out by means of reverse research and development technology, and the ORIGINAL product PCB files, BOM files, schematic diagram files and other technical documents as well as PCB silkscreen production files are restored 1:1.

Then use these technical documents and production documents for PCB board making, component welding, flying needle test, circuit board debugging, complete the original circuit board sample copy.

Nekuenderera mberi kwekuvandudza uye kudzika kwebhodhi kuteedzera indasitiri, yanhasi pcb bhodhi yekuteedzera pfungwa yakawedzerwa muhupamhi hwakawanda, haisisina kuganhurirwa kune yakapfava redunhu bhodhi kutevedzera uye kuumbiridza, asi zvakare inosanganisira yechipiri kuvandudza zvigadzirwa uye kutsvagisa nekusimudzira kwe zvigadzirwa zvitsva.

Saka, zvinoenderana negwaro kana chinhu, maitiro ekuita iyo PCB schematic diagram kumashure, ndeipi nzira yekumashure? Ndeapi mashoko ekuteerera?

Backstepping steps

1. Rekodha PCB zvinyorwa

Tora PCB, kutanga pabepa kuti unyore zvese zvinoumbwa neiyo modhi, parameter, uye nzvimbo, kunyanya diode, iko kutungamira kwetatu-nhanho chubhu, IC notch kutungamira. Zvakanakisisa kutora mifananidzo miviri yenzvimbo yezvinhu zvine kamera yedhijitari. Mazhinji emabhodhi ePCB anoita zvemberi pamusoro peye diode triode vamwe havateerere kungoona.

2. Mifananidzo yakadhirowewa

Bvisa zvese zvinhu uye bvisa tini kubva mumakomba ePAD. Chenesa iyo PCB nedoro uye woiisa mune scanner iyo inoongorora pamapikisheni akati kwirei kuti uwane mufananidzo unopinza.

Zvadaro, polisha zvimusoro zvepamusoro nezvapasi zvishoma nepepa remavara emvura kusvikira iyo firimu yemhangura yapenya. Uzviise mukati me scanner, tanga PHOTOSHOP, uye bhuroka mativi maviri zvakasiyana muvara.

Ziva kuti pcb inofanira kuiswa yakatambarara uye yakatwasuka mukati me scanner, zvikasadaro mufananidzo wakavhenekwa haugone kushandiswa.

3. Gadzirisa uye gadzirisa mufananidzo

Chinja kusiyanisa uye kureruka kwetende, kuti chikamu chine mhangura firimu uye chikamu chisina mhangura firimu musiyano zvine simba, wobva wadzima subgraph kune nhema nechena, tarisa kana mitsara yakajeka, kana zvisiri, dzokorora danho iri. Kana zvikajeka, iyo pikicha ichachengetwa seye nhema uye chena BMP fomati mafaira TOP BMP uye BOT BMP, kana iyo nhamba ikawanikwa iine matambudziko inogona zvakare kugadziriswa nekugadziriswa nePhotosHOP.

4. Simbisa PAD uye VIA chinzvimbo chinowirirana

Chinja mafaera maviri eBMP kuita maPROTEL mafaera zvichiteerana, uye tumira zvidimbu zviviri muPROTEL. Semuenzaniso, zvinzvimbo zvePAD neVIA mushure mematanho maviri zvinowirirana, zvichiratidza kuti matanho apfuura akaitwa nemazvo. Kana paine chero kutsauka, dzokorora danho rechitatu. Naizvozvo, pcb board kukopa ibasa rine moyo murefu, nekuti dambudziko diki rinokanganisa mhando uye nedhijitari inoenderana mushure mekuteedzera bhodhi.

5. Dhirowa rukoko

Chinja TOP rukoko BMP kuita TOP pcb, ita shuwa yekushandura SILK rara, yero layer, wobva watarisa mutsetse pane TOP rukoko, woisa chishandiso zvinoenderana nemufananidzo mudanho rechipiri. Delete iyo SILK dura mushure mekupenda. Dzokorora kusvikira iwe watora ese marara.

6. Kubatanidzwa kweTOP PCB neBOT PCB

Wedzera TOP pcb uye BOT pcb muPROTEL uye uvabatanidze kuita mumwe mufananidzo.

7. Laser anodhinda TOP LAYER, BOTTOM LAYER

Shandisa iyo laser printer kudhinda iyo TOP LAYER uye BOTTOM LAYER pane yakajeka firimu (1: 1 ratio), isa firimu pane iyo PCB uye enzanisa kana zvisiri izvo, kana zviri izvo, wapedza.

Bvunzo 8.

Edza iko kuita kwemagetsi kwekopi bhodhi haina kufanana nebhodhi rekutanga. Kana zvakaenzana saka zvanyatsoitwa.

1. Divide functional areas reasonably

Paunodzosera kumashure kugadzira iyo schematic dhizaini yeiyo isina kusimba PCB, kupatsanuka kunonzwisisika kwenzvimbo dzinoshanda kunogona kubatsira mainjiniya kudzikisira rimwe dambudziko risiri madikanwa uye kugadzirisa kunatsiridza kwekudhirowa.

Kazhinji kutaura, zvikamu zvine basa rakafanana pabhodhi rePCB zvicharongedzwa nepakati, kuitira kuti chikamu chinoshanda chenzvimbo chikwanise kupa hwaro hwakaringana uye hwakaringana hwekudzosera dhizaini dhizaini.

Nekudaro, kupatsanurwa kwenzvimbo ino inoshanda hakusi kwekumanikidza. Zvinoda mainjiniya kuti ave nekumwe kunzwisisa kweyemagetsi wedunhu inoenderana neruzivo.

Chekutanga pane zvese, tsvaga iyo yakakosha yeiyo inoshanda unit, uyezve zvinoenderana nekubatana kweiyo wiring kunogona kutevedzwa kuti uwane zvimwe zvikamu zveiyo imwechete inoshanda unit, kuumbwa kweanoshanda chikamu.

Kuumbwa kweanoshanda kupatsanura ndiyo hwaro hwechisimba dhizaini. Uye zvakare, usakanganwa kushandisa iyo nhamba yezvinhu pane redunhu bhodhi kuti ikubatsire iwe kugovera mabasa nekukurumidza.

2. Tsvaga chidimbu chepasi chakakodzera

Ichi chirevo chidimbu chinogona zvakare kunzi ndicho chikuru chikamu pcb network network pakutanga kwekudhirowa. Mushure mekuona zvidimbu zvinongedzo, kudhirowa zvinoenderana nemapini ezvidimbu izvi zvinogona kuve nechokwadi chekudhirowa kwechirongwa kusvika padanho rakakura.

Benchmark yeinjiniya, chokwadi hachisi zvinhu zvakaomarara, kazhinji, zvinogona kusarudza kutamba chinzvimbo chinotungamira muzvikamu zvematunhu sechiyero, zvinowanzo hombe, pini zvakanyanya, kudhirowa kuri nyore, senge yakasanganiswa wedunhu, shanduri, transistor, nezvimwe. ., inokodzera sechiyero.

3. Nyatso kusiyanisa mitsara uye tora wiring inonzwisisika

Kune musiyano wetambo yepasi, tambo yemagetsi netambo yemasaini, mainjiniya anodawo kuve neruzivo rwakakodzera pamusoro pesimba remagetsi, kubatana kwedunhu, wiring yePCB zvichingodaro. Musiyano wemaseketi uyu unogona kuongororwa kubva pakubatana kwezvinhu, hupamhi hwemhangura foil uye hunhu hwezvigadzirwa zvemagetsi ivo pachavo.

Mune iyo wiring kudhirowa, kuti udzivise kuyambuka mutsetse uye kupindirana, ivhu rinogona kushandisa huwandu hukuru hwezviratidzo zvevhu, mhando dzese dzemitsara dzinogona kushandisa akasiyana mavara emitsara dzakasiyana kuona zvakajeka zvinonzwisisika, kune ese marudzi ezvikamu anogona zvakare kushandisa akakosha zviratidzo, uye zvinogona kutokamura chikamu chedunhu rekudhirowa, zvobva zvasanganiswa.

4. Tenzi hwaro hwekutanga uye tarisa kune akafanana madhimoni madhirama

Kune mamwe akakosha emagetsi wedunhu furemu dhizaini uye nzira yekudhirowa, mainjiniya anofanirwa kugona, kwete chete kuti vakwanise kudhirowa mamwe akareruka, echinyakare ekutanga echikamu cheyuniti wedunhu zvakananga, asiwo kugadzira iyo yakazara furemu yemagetsi wedunhu.

Kune rimwe divi, usaregeredze kuti mhando imwe chete yezvigadzirwa zvemagetsi zvine zvimwe zvakafanana muchiratidzo chePCB network network, mainjiniya vanogona maererano nekuunganidzwa kwechiitiko, vanodhirowa zvizere padhiragi yedunhu yakafanana kuti vaite zvinopesana neiyo nyowani chigadzirwa schematic dhayagiramu.

5. Tarisa uye gadzirisa

Mushure mekudhirowa schematic kwapera, iyo yekumberi dhizaini yePCB schematic diagram inogona kupedzwa chete mushure mekuyedzwa nekutarisa. Iwo mazita ezvinhu zvezvinhu zvinoenderana nePCB yekuparadzira parameter inoda kuongororwa uye kukwidziridzwa. Zvinoenderana nePCB faira dhayagiramu, iyo schematic dhayagiramu inofananidzwa, kuongororwa uye kuongororwa kuona kuti iyo schematic dhayagiramu inonyatsoenderana nefaira dhayagiramu.