Maitiro ekuverenga e PCB mutsara upamhi uye zvazvino zvinotevera:

Kutanga kuverenga nzvimbo yekuyambuka-chikamu cheTrack. Iyo yemhangura foil ukobvu hwakawanda PCBS ndeye 35um (kana iwe usina chokwadi, unogona kubvunza Iyo PBB inogadzira). Nzvimbo yemuchinjikwa inowedzerwa nehupamhi hwemutsara. Iko kune empirical kukosha kweyezvino density kubva pa15 kusvika 25 amperes pamamirimita mita.

Kuyera nzvimbo yepakati-chikamu kuti uwane iyo-yekuyerera kugona. I = KT0.44a0.75K ndiyo coefficient yekugadzirisa. Kazhinji, 0.024 inotorwa mukatikati memhangura yakapfeka waya, uye 0.048t inotorwa muchikamu chekunze sekukwira kwetembiricha, uye chiumbwa ichi ndiCelsius (nzvimbo inonyunguduka yemhangura iri 1060 ℃). A ndiyo nzvimbo inochinjika-chikamu chendarira yakapfekerwa, uye iyo unit iri mraba MIL (kwete mm mm, Ini ndiyo yekupedzisira inobvumidzwa pari zvino, iyo unit ye ​​amperes (AMP) kazhinji 10mil = 0.010inch = 0.254, inogona kuva 1A, 250MIL = 6.35mm, uye iri data re8.3A. Kuverengerwa kwePCB yazvino-kutakura kugona kwave kushomeka kwemvumo yehunyanzvi nzira uye mafomula. Vanoziva mainjiniya eCAD vanovimba nehupenyu hwavo kuti vawane kwakakwana kutonga. Asi kune CAD novice, haigone kunzi inosangana nedambudziko rakaoma.

Ikozvino kutakura kugona kwePCB kunoenderana nezvinhu zvinotevera: hupamhi hwemutsara, ukobvu hwemutsara (mhangura foil ukobvu), tembiricha inobvumidzwa inomuka. Sezvo isu tese tichiziva, iyo yakafara iyo pcb mutsetse, iyo yakakura iyo yazvino-inotakura kugona. Pano, ndokumbira unditaurire: uchifunga kuti 10MIL inogona kumira 1A pasi pemamiriro akafanana, ingani zvazvino inogona 50MIL kumira, iri 5A? Mhinduro, hongu, kwete. Mutsara upamhi uri muchikamu cheInch (Inch Inch = 25.4 millimeter) 1 oz. Mhangura = 35 micron gobvu, 2 oz. = 70 micron gobvu, 1 oz = 0.035mm 1mil. = 10-3inch. Tsvaga Capacityper MIL STD 275

Kudonha kwekumanikidza kunokonzerwa nekushomeka kwetambo kureba kunofanirwa zvakare kutariswa mukuyedza. Iyo tini pane process welds inoshandiswa chete kuwedzera iko iko iko kugona, asi zvinonetsa kudzora huwandu hwetini. 1 OZ mhangura, 1mm yakafara, kazhinji 1-3 A galvanometer, zvinoenderana nehurefu hwemutsara wako, izvo zvinomanikidza kudonha zvinodiwa.

Iko kukosha kwazvino kukosha kunofanirwa kuve iwo huwandu hunobvumidzwa kukosha pasi pekupisa kwekukwira muganho, uye kukosha kweiyo fuse ndiko kukosha uko kukwira kwetembiricha kunosvika panonyungudika mhangura. Semuenzaniso. 50mil 1oz tembiricha inokwira 1060 degrees (kureva mhangura yekunyungudutsa mhangura), ikozvino 22.8A.