Heavy Copper PCB Dhizaini yeMagetsi Emagetsi: A Inoshanda Injiniya Guide

Magetsi emagetsi anoda mhinduro dzePCB dzinokwanisa kubata mafungu emvura akakwira ukuwo dzichichengetedza kugadzikana kwekupisa uye kuvimbika kwenguva refu. Dhizaini yePCB yemhangura ine mhangura inogadzirisa matambudziko aya kuburikidza nekuwedzera ukobvu hwemhangura, nzira dzakagadzirwa, uye nzira dzakavandudzwa dzekutarisira kupisa.

Gwaro iri rinoongorora zvakakosha dhizaini yekufunga kweinorema yemhangura PCB maapplication, kubva pakutanga dhizaini sarudzo kusvika pakugoneka kwekugadzira, inotarisa pakuita kunoshanda muDC-DC converters, mota madhiraivha, inverters, uye maindasitiri magetsi emagetsi.

Chii Chinonzi Heavy Copper PCB uye Nei Ichikosha muSimba Electronics

Kutsanangura Heavy Copper Construction

MaPCB emhangura anorema ane huremu hwemhangura hwe3 oz/ft² kana kupfuura, zvichienzaniswa nemaPCB akajairwa anowanzo shandisa mhangura ye1 oz/ft². Ukobvu hwemhangura uhwu hwakawedzera hunosimudzira zvakananga kugona kwemagetsi kutakura, hunoderedza kurasikirwa kwekudzivirira, uye hunovandudza kupisa kupararira kwese kwese.

Performance Advantages muHeavy Copper PCB Dhizaini

Mabhenefiti ekutanga ekuvakwa kwemhangura inorema anosanganisira:

• Higher current capacity -Yakakora mhangura inoderedza kupikisa kwemagetsi, ichigonesa 20-50A kuenderera mafungu pakuteedzera pasina kupisa kwakanyanya.
• Superior heat dissipation -Kuwedzeredzwa kwekushisa conductivity kunoparadzira kupisa munzvimbo dzakakura, kuderedza nzvimbo dzinopisa uye kushushikana kwekupisa.
• Kuvandudzwa kwesimba remagetsi -Kuwedzera mhangura yakawanda inopa kuramba kuri nani kune inopisa bhasikoro uye mechanical stress
• Lower voltage drop -Kudzikisira kupikisa kuramba kunoderedza kurasikirwa kwemagetsi munzira dzakakwirira-zvino

Nzvimbo Dzekushandisa

Heavy copper PCB dhizaini inoshandira mota inverters, onboard charger, maindasitiri mota controller, uye akakwira-simba madhiraivha e LED. Aya maapplication anoda kuenderera mberi kwekushanda kwepamusoro-ikozvino, kubvisa kupisa kwakanaka, uye kuita kwakavimbika pasi pesimba remagetsi nekupisa.

Heavy Copper PCB Dhizaini: Mamiriro Ekuita

Kuderedza Simba Loop Impedance

Inoshanda dhizaini optimization inotarisa pakudzikisa simba loop nzvimbo. Isa macapacitor ekuisa padhuze nekuchinjisa zvishandiso uye chengetedza mapfupi, akananga azvino nzira kuti uderedze parasitic inductance. Izvi zvinoderedza voltage overshoot, electromagnetic interference, uye kuchinja kurasikirwa.

Yazvino Path Distribution Strategy

Govera maronda epamusoro-azvino pazvikamu zvakawanda pazvinogoneka, uchidzivirira nzvimbo dzemabhodhoro uko ikozvino inofanirwa kufenda kuburikidza nezvikamu zvidiki. Mhangura yakakura inodururwa uye ndege dzakazadzwa dzinopa yakaderera-impedance magetsi kugovera uku ichipararira kupisa kupisa munzvimbo dzakakura dzebhodhi.

Creepage uye Clearance Zvinodiwa

Heavy copper PCB dhizaini inofanirwa kuverengera yekuwedzera nzvimbo inodiwa nekuda kwepamusoro voltages. Chengetedza nzvimbo dzakakwana dze creepage pakati pe-high-voltage node zvinoenderana neanoshanda ekuchengetedza zviyero. Mhangura yakakora inoda kucheneswa kwakakura panguva yekucheka kudzivirira zvikabudura pakati pematanho ari pedyo.

Copper Kukobvu Sarudzo uye Trace Width Calculation

Kusarudza Inodiwa Huremu hweMhangura

Sarudza ukobvu hwemhangura zvichienderana nehupamhi hunoramba huripo uye hunogamuchirwa tembiricha inokwira. Huremu hwemhangura huremu hwakajairwa hunobva pa2 oz/ft² pakushandisa magetsi ari pakati nepakati kusvika pa10 oz/ft² pakudzikisira kwazvino. Kupeta kwega kwega kwekukora kwemhangura kunoda kupeta kaviri huwandu hwazvino hwehupamhi hwekutevera hwakapihwa.

IPC-2152 Mitemo uye Maverengero

Iyo IPC-2152 chiyero inopa empirical data yekuteedzera hupamhi kuverenga mune inorema yemhangura PCB dhizaini, accounting yehuremu hwemhangura, ambient tembiricha, uye inobvumidzwa tembiricha inokwira. Kune 3 oz copper trace inotakura 20A ine 30 ° C kusimuka, tarisira kufara kwakatenderedza 5-8mm zvichienderana nekuti trace yacho ndeyemukati kana kunze.

Kugadzira Kushivirira Kufunga

Kuwedzera kwemhangura ukobvu kunokanganisa etching kunyatsoita, kazhinji zvichikonzera kusiyana kukuru kwemutsara wehupamhi. Mitemo yekugadzira inofanirwa kuverengera pamusoro-etch mhedzisiro inova yakanyanya kutaurwa nekobvu mhangura. Shanda nehupamhi hudiki hwema8-10 mils ye3-4 oz mhangura, uchikwidza kumusoro kune huremu hunorema.

Via Dhizaini Yepamusoro Yazvino uye Thermal Conduction

Ikozvino Kutamiswa Via Arrays

Heavy copper PCB dhizaini inoda yakasimba kuburikidza nezvimiro kuendesa ikozvino pakati pematanho pasina kugadzira mabhodhoro. Single vias inoratidza kuti haina kukwana kune yakakwirira currents; pachinzvimbo, shandisa arrays akawanda parallel vias. Yenzira ye20A, govera 10-15 vias mhiri kwenzvimbo yekubatanidza kuti ive nechokwadi chekugona kwazvino uye kushanda kwekupisa.

Thermal Via Implementation

Thermal vias pasi pemagetsi zvinopa nzira dzakakosha dzekupisa kupisa kubva kunzvimbo dzinopisa kusvika kune ndege dzemukati dzendarira uye pasi-parutivi heatsinks. Ronga zvinodziya vias mune dense arrays ane yakajairika spacing ye20-30 mils. Yakazadzwa uye yakapfava vias inopa yepamusoro yekupisa kuita kana ichienzaniswa neasina kuzadzwa vias.

Via Plating Quality Standards

Chengetedza zvishoma kuburikidza nemadhayamita e0.3mm (12 mils) kuve nechokwadi chekuvharika kwemhangura yemhangura mukati megomba rose. Mabhodhi anorema emhangura anoda kudzika kwakasimba kuti uwane kugovewa kwakaringana kwemhangura kuburikidza nedhiramu, kunyanya kune reshiyo inodarika 8: 1.

Thermal Management mune Heavy Copper PCB Dhizaini

Copper Plane Kupisa Kupararira

Heavy copper kuvakwa kunopa yakanakisa lateral kupisa kupararira kuburikidza nendege dzakakora dzemukati. Shandisa 2-4 oz mhangura yesimba remukati uye ndege dzepasi kuti ugadzire zvidimbu zvemafuta ekuparadzira zvinofambisa kupisa kure nenzvimbo dzinopisa uye kugovera munzvimbo yese yebhodhi.

Metal Core Kubatanidzwa

Kana paine zvinoda kupisa kwakanyanya, sanganisa dhizaini yePCB yemhangura ine simba nesimbi . Aruminiyamu kana mhangura inopa nzira dzakananga dzekupisa kubva kunzvimbo dzekuisa zvikamu kuenda kumaheatsinks ekunze. Nzira iyi inoshanda zvakanyanya kune vanochinja simba vane density yakakura uye ma LED applications.

Strategic Thermal Via Placement

Position thermal via arrays zvine hungwaru pasi peMOSFETs, diode, uye zvimwe zvinopisa zvinogadzira zvinhu. Simba rakajairwa MOSFET rinogona kuda 30-50 yekudziya vias mukati meiyo inopisa pad tsoka yekuitisa kupisa zvakakwana kure nekusangana.

Kugadzira Kufunga kweHeavy Copper PCB Dhizaini

Etching Process Limitations

Mhangura yakakora inoda nguva yakareba etch, ichiwedzera njodzi yekupfuura-etch uye kutsvaga undercutting. Tarisira huremu hudiki hwehuremu hwemhangura:

• 2-3 oz mhangura - Yakaderera kuteedzera uye nzvimbo ye6-8 ms
• 4 oz mhangura - Yakaderera kuteedzera uye nzvimbo ye10-12 ms
• 6 oz mhangura - Yakaderera kuteedzera uye nzvimbo ye15-18 ms
• 8-10 oz mhangura - Yakaderera kuteedzera uye nzvimbo ye20+ ms

Plating uye Via Kuzadza

Kuburikidza neplating kunowedzera kuoma zvishoma nezvishoma sezvo huremu hwemhangura hunowedzera, kunyanya kumakomba echiyero chepamusoro. Yakazadzwa vias mumabhodhi anorema emhangura inoda hunyanzvi hwekuputira maitiro uye akawanda eplating kutenderera. Taurirana stack-up uye kuburikidza nezvinodiwa nevagadziri kutanga muchikamu chekugadzira.

Layer Stack-Up Dhizaini

Heavy copper layers inogadzira zvinonetsa mu layer-to-layer kunyoresa uye lamination kufanana nekuda kwekukosha kwakasiyana kwakasiyana. Dhizaina symmetric stack-ups pazvinogoneka kudzikamisa masisitimu emagetsi uye kudzivirira bhodhi warpage panguva yekugadzira kana kusangana.

Dhizaini Mazano Ekugadzirisa

Simulation uye Verification

Simbisa dhizaini yePCB yemhangura ine mhangura uchishandisa maturusi ekufananidzira ekupisa usati wagadzira. Masoftware akadai seAnsys SIwave, Altium PDN Analyzer, kana maturusi eFEA ekupisa anofungidzira kugoverwa kwazvino, mapurofayiri ekupisa, uye nzvimbo dzinogona kupisa. Masimulizi aya anodzidzisa kugadziriswa kwehupamhi hwetrace uye kuvandudzwa kwekutonga kwekupisa.

Dhizaini Rule Kuenzanisa

Gadzirisa nekuenzanisa mashandiro emagetsi zvinodiwa pazvirambidzo zvekugadzira. Nepo 6 oz mhangura inopa yakanakisa ikozvino kugona, 3-4 oz mhangura kazhinji inokwana apo ichipa zvirinani etching nemazvo uye mutengo wakaderera. Ongorora maitiro chaiwo ekushanda uye kutenderera kwebasa kuti udzivise kunyanya kutsanangurwa.

Mugadziri Kudyidzana

Bata PCB vagadziri panguva yekugadzira chikamu kuti vanzwisise yavo chaiyo inorema mhangura kugona, mitemo yekugadzira, uye mutengo vatyairi. Kumbira dhizaini yekugadzira mhinduro pakugovera mhangura, kuburikidza nemapeteni, uye mashoma maficha kudzivirira kudhizainisa kunodhura.

mhedziso

Heavy copper PCB dhizaini inoda kurongeka kutarisisa kugona kwazvino, kutonga kwekupisa, uye kugona kwekugadzira. Kubudirira kunoenderana nekunzwisisa hukama pakati pemhangura ukobvu, kutsvaga geometry, kuburikidza nekuvaka, uye kupisa kupisa nzira. Mainjiniya anonyatsoziva izvi zvakabatana zvinhu zvinogadzira magetsi emagetsi anopa kushanda kwakavimbika pasi pemamiriro ezvinhu anoda.

KuHighleap Electronics, tinopa hunyanzvi hwakakwana hwekugadzira PCB dzemhangura dzinorema :

• Tsika mhangura ukobvu - 2 oz kusvika 10 oz huremu hwemhangura sarudzo dzakagadzirirwa kune zvazvino zvaunoda
• Yepamberi kuburikidza nehunyanzvi - Yakazadzwa, yakapfava, uye inodziya kuburikidza nearrays kuitira yakakwana yemagetsi uye yekupisa kuita
• Thermal management rutsigiro -Metal musimboti kubatanidzwa uye dhizaini yemhangura ndege yekugadzira inobudirira kupisa kupisa
• Kubatana kwekugadzira -Kuongorora kweinjiniya uye mhinduro yeDFM kuve nechokwadi chekubudirira kwekugadzira

Bata timu yedu yeinjiniya kuti mukurukure zvinodiwa nemagetsi emagetsi uye dzidzai kuti hunyanzvi hwedu hwekugadzira PCB yemhangura ine mhangura yakawanda hunogona sei kutsigira chirongwa chenyu chinotevera.