PCB chimiro:

Pcb yakakosha ine chidimbu chekudzivirira zvinhu uye nhete yemhangura foil, yakasungirirwa pane iyo substrate. Makemikari anodhirowa kupatsanura mhangura kupatsanura nzira dzinodaidzwa kunzi makwara kana nzira dzedunhu, mapedhi ekubatanidza, kuburikidza-maburi ekuchinjisa kubatana pakati pezvikamu zvemhangura, uye hunhu hwenzvimbo dzakasimba dzinoitisa EM kudzivirirwa kana nekuda kwezvinangwa zvakasiyana. Iwo njanji anoshanda sewaya akabatwa munzvimbo uye akaomeswa kubva kune mumwe nemumwe nemhepo uye PCB substrate zvinhu. Pamusoro pePCB panogona kunge paine chifukidziro chinochengetedza mhangura kubva kukuora uye kunoderedza mukana wekushomeka kwesoda pakati pezvisaririra kana kusangana kwemagetsi kusingadiwe netambo dzisina kufukidzwa. Nekuda kwekugona kwayo kufanofungidzira kuwelda mapfupi maseketi, iyo yekunamatira inonzi solder kuramba.

Uye zvakare, iyo hombe dhizaini pamwe nematanho anodikanwa anodiwa ekugadzirwa kwePCB inofanirwa kukurukurwa.

Nyore pcb dhizaini:

Kune akawanda pcb dhizaini tutori paInternet, yakakosha pcb dhizaini matanho uye makuru pcb dhizaini software irikushandiswa parizvino. Asi kana iwe uchida gwara rakazara paPBB dhizaini dhizaini uye akasiyana marudzi uye mamodheru, pane inodzidzisa portal paInternet nezve PCBS inonzi RAYMING PCB & Zvikamu. Zvese pcb prototypes uye dzakasiyana pcb mafomu, zvese zvinogona kuwanikwa pane ino portal saiti.

Kugadzira pcb, isu tinofanirwa kutanga tadhirowa iyo schematic dhizaini yePCB. Chirongwa chinokupa gwaro rePCB, rinozoisa chimiro kana kuronda nzvimbo yezvinhu zvakasiyana paPCB.

Pcb dhizaini matanho:

Aya anotevera matanho anodiwa ekugadzira PCB;

Isa software kugadzira iyo PCB.

Dhizaini uchishandisa pcb dhizaini software schematic.

Seta iyo tambo yakafara.

Iyo 3 d maonero

Pcb dhizaini software:

Kune akawanda akasiyana uye anobatsira software pamusika wekugadzira iyo schematic chikamu chePCB. Izvi ndizvo zvinoita sechikamu chechikamu chePCBB;

Nzwisisa pcb uye dzidza yakapusa pcb dhizaini uye pcb proofing

Mufananidzo 2: SCHEMATIC dhizaini yedunhu rePCB

Kuti ugadzire chikamu chePCB, software zhinji dzinoshandiswa, kunyanya kushandisa;

KiCad

Proteus

Eagle

Orcad

Dhizaini pcb pane Proteus:

Proteus parizvino inoshandiswa kugadzira PCBS. Zviri nyore kushandisa uye chero munhu asingazive nezvayo anokurumidza kujairana nayo uye ave neese maficha. Izvi zvinodaro nekuti ine yakasarudzika uye mushandisi-inoshamwaridzika interface. Unogona kuwana zvirinyore zvese zvaunoda kuwedzera paPCB yako. Tambo dzakasiyana uye nekubatana kwavo zvinogona zvakare kuitwa nyore.

Nzwisisa pcb uye dzidza yakapusa pcb dhizaini uye pcb proofing

Kujairirana ne software kwakakosha kuti basa riitwe. Proteus inopa yakawanda kurerukirwa kuwana zvese zvakakosha zvinhu izvo iwe zvaunoda kuve nazvo muPCB yako. Iwe unogona kuwana nyore nyore kubatana uye zvese zvishandiso kubva pahwindo hombe, sezvakaratidzwa mumufananidzo uri pamusoro. Vashandisi vanogona zvakare kuona mamodheru ezvikamu zvakasiyana, saka ivo vanogona kusarudza chishandiso chine yakatarwa modhi kuti vagadzire PCB.

Iyo yakazara PCB dhizaini yakagadzirwa paProteus inopihwa pazasi;

Nzwisisa pcb uye dzidza yakapusa pcb dhizaini uye pcb proofing

Mufananidzo 4: pcb dhizaini dhizaini

Kurongeka kwakakwana kwePCB yakagadzirirwa kushandisa Proteus software inoratidzwa pamusoro. Mumwe anogona kuona nyore nyore akasiyana akasiyana akanangana uye akarongedzwa pamwechete kusangana nezvinodiwa zvePCB inoshanda, capacitor, LED uye waya dzese dzakabatana zvakateedzana.

Routing:

Kana chikamu chechimiro chePCB chikapedzwa nerubatsiro rwe software, iyo wiring yePBB inoitika. Asi isati yaita wiring, vashandisi vePCB vanogona kutarisa kuvimbika kwedunhu rekugadzira nerubatsiro rwekufananidza. Mushure mekutarisa huchokwadi, nzira yacho yapera. Mukufambisa, software yakawanda inopa sarudzo mbiri.

Chinyorwa nzira

Otomatiki hwokutiparadza

Mune manyorerwo enzira, mushandisi anoisa yega yega chinhu zvakasiyana uye anoibatanidza zvinoenderana nedhairekita redunhu, saka mune manyorerwo enzira, hapana chikonzero chekukwevera dhizaini dhiraivhu usati wiring.

Mune kesi ye otomatiki wiring, mushandisi anongoda kusarudza iyo wiring upamhi. Ipapo iyo pcb yakagadzirirwa nekungoerekana yaisa zvikamu kuburikidza ne otomatiki wiring software, uyezve yakabatana zvinoenderana neyechirongwa dhizaini yakagadzirirwa nemushandisi. Edza akasiyana ekubatanidza musanganiswa mu otomatiki ekurongedza software kuti zvikanganiso zvirege kuitika. Vashandisi vanogona kugadzira imwechete kana yakawanda-yakaturikidzana PCBS zvichienderana nechishandiso.

Gadza upamhi hwetambo:

Hupamhi hwakatarisa zvinoenderana nekuyerera kwazvino kuburikidza nako. Fomura inoshandiswa kuverenga trace nzvimbo inotevera:

Pano “ini” ndiyo yazvino, “δ T” tembiricha inomuka, uye “A” ndiyo inoteedzera nharaunda. Zvino verenga hupamhi hwesaruro,

Upamhi = Nzvimbo / (ukobvu * 1.378)

K = 0.024 yepakati yemukati uye 0.048 yeiyo yekunze dura

Iyo yefaira faira yeakaviri-mativi PCB inotaridzika seiyi:

Mufananidzo 1: Kutamisa faira

Mitsara yeyero inoshandiswa pamiganhu yePCB, ichiganhurira chimiro chechimiro uye kurongedza wiring mune otomatiki wiring. Iyo mitsvuku uye yebhuruu mitsara inoratidza yepasi uye yepamusoro mhangura mitezo, zvichiteerana.

Iyo 3 d maonero:

Dzimwe software dzakadai seProteus neKiCad dzinopa hunyanzvi hwekuona 3D, iyo inopa 3D kuona kwePCB ine zvikamu zvakaiswa pairi kuti zvionekwe zviri nani. Mumwe anogona nyore nyore kutonga kuti dunhu rinozotaridzika sei mushure mekugadzirwa. Mushure me wiring, iyo PDF kana Gerber faira re waya yemhangura inogona kutumirwa kunze uye kudhindwa pane zvisina kunaka.