PCB Dhizaini

PCB dhizaini

Software

1. Iyo inonyanya kushandiswa software muChina maProtel, Protel 99se, Protel DXP, Altium, vanobva kukambani imwe chete uye vanogara vachikwidziridzwa;iyo yazvino vhezheni ndeyeAltium Designer 15 iyo iri nyore, dhizaini yakajairika, asi haina kunaka zvakanyanya kune yakaoma PCB.

2. Cadence SPB.Ikozvino shanduro ndeyeCadence SPB 16.5;iyo ORCAD schematic dhizaini chiyero chepasirese;PCB dhizaini uye simulation yakakwana kwazvo.Zvakanyanya kuoma kushandisa kupfuura Protel.Zvinonyanya kudiwa zviri mumamiriro akaoma.;Asi pane mitemo yekugadzira, saka dhizaini yacho inoshanda zvakanyanya, uye yakanyanya kusimba kupfuura Protel.

3. Mentor's BORDSTATIONG uye EE, BOARDSTATION inoshandiswa chete kune UNIX system, isina kugadzirirwa PC, saka vanhu vashoma vanoishandisa;yazvino Mentor EE vhezheni ndeye Mentor EE 7.9, iri padanho rimwe chete neCadence SPB, kusimba kwayo kudhonza waya newaya inobhururuka.Inonzi flying wire king.

4. GOGO.Iyi ndiyo inonyanya kushandiswa PCB dhizaini software muEurope.Iyo PCB dhizaini software yataurwa pamusoro inoshandiswa yakawanda.Cadence SPB uye Mentor EE madzimambo akakodzera.Kana iri yekutanga dhizaini PCB, ndinofunga kuti Cadence SPB iri nani, inogona kukudziridza tsika yakanaka yekugadzira yemugadziri, uye inogona kuve nechokwadi chemhando yakanaka yekugadzira.

Unyanzvi hunoenderana

Kuisa mazano

Iyo dhizaini inofanirwa kuiswa munzvimbo dzakasiyana mumatanho akasiyana.Muchikamu chekugadzirisa, mapoinzi makuru egidhi anogona kushandiswa pakurongwa kwechishandiso;

Kune mahombe maturusi akadai seICs uye asina-positioning majoini, unogona kusarudza gidhi chaiyo ye50 kusvika 100 mils yekumisikidza.Kune zvidiki zvidiki zvishandiso senge resistors, capacitors, uye inductors, unogona kushandisa makumi maviri neshanu mils kurongedza.Iko kurongeka kwemahombe egidhi mapoinzi kunobatsira kurongeka kwechigadzirwa uye aesthetics yegadziriro.

PCB marongerwo mitemo:

1. Mumamiriro ezvinhu akajairika, zvikamu zvose zvinofanira kuiswa panzvimbo imwechete yebhodhi redunhu.Chete kana iyo yepamusoro layer yezvikamu zvanyanya kuomarara, inogona zvimwe zvigadziriso zvepamusoro uye zvakaderera-kupisa, senge chip resistors, chip capacitors, paste Chip ICs inoiswa pazasi layer.

2. Pamusoro pekuvimbisa kushanda kwemagetsi, zvikamu zvinofanira kuiswa pane gridhi uye zvakarongeka zvakafanana kana kuti perpendicular kune imwe neimwe kuti zvive zvakanaka uye zvakanaka.Mumamiriro ezvinhu akajairika, zvikamu hazvibvumirwi kupindirana;zvikamu zvinofanirwa kurongeka zvakabatana, uye zvikamu zvinofanirwa kunge zviri pahurongwa hwese Uniform kugovera uye yunifomu density.

3. Iyo shoma shoma pakati pepadhi padhi maitiro ezvikamu zvakasiyana pabhodhi redunhu inofanira kuva pamusoro pe1MM.

4. Kazhinji haisi pasi pe2MM kubva kumucheto kwebhodhi redunhu.Chimiro chakanakisa chebhodhi redunhu chine rectangular, nehurefu kusvika kuhupamhi hweyeshiyo ye3: 2 kana 4: 3. Kana bhodhi saizi yakakura kupfuura 200MM ne150MM, kugona kwebhodhi redunhu kunofanirwa kutariswa Mechanical simba.

Unyanzvi hwekugadzira

Mukugadzirisa magadzirirwo ePCB, chikamu chebhodhi redunhu chinofanira kuongororwa, dhizaini yedhizaini inofanirwa kubva pane basa, uye marongero ezvikamu zvese zvedunhu anofanirwa kusangana nezvinotevera misimboti:

1. Ronga nzvimbo yega yega inoshanda yedunhu unit maererano nekuyerera kwedunhu, ita kuti marongerwo ave nyore kutenderera kwechiratidzo, uye chengetedza chiratidzo munzira imwechete sezvazvinogona.

2. Nezvikamu zvakakosha zvechikamu chimwe nechimwe chinoshanda sepakati, marongerwo akapoterera.Izvo zvikamu zvinofanirwa kunge zvakaenzana, zvakabatana uye zvakarongeka zvakarongeka paPCB kuderedza uye kupfupisa zvinotungamira uye kubatana pakati pezvikamu.

.Dunhu rakawanda rinofanira kuronga zvikamu zvakaenzana zvakanyanya sezvinobvira, izvo zvisiri kungonaka chete, asiwo zviri nyore kuisa uye solder, uye zviri nyore kubudisa mashizha.

Matanho ekugadzira

Magadzirirwo ekugadzira

MuPCB, iwo akakosha mameseji anoreva izvo zvakakosha muchikamu chepamusoro-frequency, izvo zvakakosha zviri mudunhu, izvo zvinokanganisika zviri nyore, zvikamu zvine yakakwira voltage, zvikamu zvine chizvarwa chakakura chekupisa, uye zvimwe zvinhu zvebonde. Nzvimbo yezvikamu izvi zvakakosha inoda kunyatsoongororwa, uye marongerwo anofanirwa kusangana nezvinodiwa zvedunhu basa uye zvinodiwa zvekugadzira.Kuiswa kwavo zvisina kunaka kunogona kukonzera matambudziko ekuenderana kwedunhu uye matambudziko ekuvimbika kwechiratidzo, izvo zvinogona kutungamira mukukundikana kwePCB dhizaini.

Pakuisa zvakakosha zvikamu mudhizaini, tanga wafunga saizi yePCB.Kana iyo PCB saizi yakakura kwazvo, mitsetse yakadhindwa yakareba, iyo impedance inowedzera, iyo anti-kuomesa kugona inoderera, uye mutengo unowedzerawo;kana iri duku, kupisa kwekushisa hakuna kunaka, uye mitsetse iri pedyo inopindira nyore nyore.Mushure mekuona saizi yePCB, sarudza nzvimbo yependulum yechinhu chakakosha.Pakupedzisira, maererano nesangano rinoshanda, zvose zvikamu zvedunhu zvakaiswa.Nzvimbo yezvikamu zvakakosha zvinofanirwa kucherechedzwa zvinotevera misimboti panguva yekurongeka:

1. Kupfupisa kuwirirana pakati pe-high-frequency components sezvinobvira, edza kuderedza kugovera kwavo parameters uye mutual electromagnetic interference.Izvo zvinokonzeresa zvikamu hazvigone kuve zvakanyanya padyo kune mumwe nemumwe, uye iyo yekupinza uye inobuda inofanira kunge iri kure sezvinobvira.

2 Zvimwe zvikamu kana waya zvinogona kunge zvine musiyano wepamusoro, uye kureba kwavo kunofanirwa kukwidziridzwa kudzivirira netsaona mapfupi maseketi anokonzerwa nekubuda.High-voltage zvikamu zvinofanirwa kuchengetedzwa zvisingasviki.

3. Zvikamu zvinorema kupfuura 15G zvinogona kugadziriswa nemabhuraketi uye zvobva zvasungwa.Izvo zvinorema uye zvinopisa zvikamu hazvifanirwe kuiswa pabhodhi redunhu asi zvinofanirwa kuiswa pazasi ndiro yechasisi huru, uye kupisa kupisa kunofanirwa kutariswa.Thermal components zvinofanira kuchengetwa kure nezvinopisa zvikamu.

4. Kurongeka kwezvikamu zvinogadziriswa zvakadai se potentiometer, inogadziriswa inductance coils, variable capacitors, micro switches, nezvimwewo inofanira kufunga nezvezvinodiwa zvemaitiro ebhodhi rose.Dzimwe shanduko dzinowanzo shandiswa dzinofanira kunge Dziise paunogona kusvika nyore nyore nemaoko ako.Kurongeka kwezvikamu zvakaenzana, dense uye dense, kwete pamusoro-inorema.

Imwe yekubudirira kwechigadzirwa ndeyekuteerera kunaka kwemukati.Asi zvakakosha kufunga nezve kunaka kwese, ese ari mabhodhi akakwana, kuitira kuti uve chigadzirwa chakabudirira.

Zvinoteverana

1. Isa zvikamu zvinonyatsoenderana nechimiro, senge zvigadziko zvemagetsi, mwenje wechiratidzo, switch, zvibatanidza, nezvimwe.

2. Isa zvinhu zvakakosha, zvakadai sezvikamu zvakakura, zvikamu zvinorema, zvinopisa zvinopisa, transformers, ICs, nezvimwewo.

3. Isa zvikamu zviduku.

Rongedzo cheki

1. Kunyangwe ukuru hwebhodhi redunhu uye madhirowa anosangana nehukuru hwekugadzirisa.

2. Kana marongerwo ezvikamu ari pakati nepakati, akarongwa zvakanaka, uye kuti zvose zvakaiswa.

3. Pane kunetsana here pamatanho ese?Zvakadai sekuti zvikamu, furemu yekunze, uye nhanho inoda kudhindwa kwepachivande zvine musoro.

3. Kana izvo zvinowanzoshandiswa zvikamu zviri nyore kushandisa.Senge switch, plug-in mabhodhi akaiswa mumidziyo, zvikamu zvinofanirwa kutsiviwa kazhinji, nezvimwe.

4. Chinhambwe chiri pakati pezvikamu zvinopisa uye zvinopisa zvinonzwisisika here?

5. Kana kupisa kunopisa kwakanaka.

6. Kana dambudziko rekupindira kwemutsara rinoda kutariswa.

Chinyorwa nemifananidzo kubva painternet, kana paine kukanganisa pls tanga watibata kuti tibvise.
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