Iyo yakajairika PCB dhizaini yazvino haipfuure gumi A, kana kunyange 5 A. Kunyanya mudzimba uye mutengi zvemagetsi, kazhinji iyo inoenderera ichishanda ikozvino paPCB haipfuure 2 A.
Nzira 1: Kurongeka paPCB
Kuti uone kugona-kwazvino kwePCB, isu tinotanga nePCB chimiro.Tora kaviri-layer PCB semuenzaniso.Rudzi urwu rwebhodhi redunhu kazhinji rine matatu-layer chimiro: ganda remhangura, ndiro, uye ganda remhangura.Ganda remhangura ndiyo nzira iyo yazvino uye chiratidzo muPCB inopfuura.Maererano neruzivo rwefizikisi yechikoro chepakati, tinogona kuziva kuti kupokana kwechinhu kune hukama nechinhu, chikamu-chikamu, uye kureba.Sezvo yedu ikozvino inomhanya paganda remhangura, iyo resistivity inogadziriswa.Iyo mhiri-chikamu nzvimbo inogona kutariswa sehukobvu hweganda remhangura, inova iko kukora kwemhangura muPCB yekugadzirisa sarudzo.Kazhinji ukobvu hwemhangura hunoratidzwa muOZ, ukobvu hwemhangura hwe1 OZ i35 um, 2 OZ i70 um, zvichingodaro.Zvino zvinogona kugumiswa nyore nyore kuti kana yakakura ikozvino ichapfuudzwa paPCB, iyo wiring inofanira kunge ipfupi uye gobvu, uye iyo yakakura kukora kwemhangura yePCB, zviri nani.
Muinjiniya chaimo, hapana chiyero chakasimba chehurefu hwewaya.Inowanzo shandiswa muinjiniya: ukobvu hwemhangura / tembiricha kusimuka / waya dhayamita, aya matatu maratidziro ekuyera ikozvino kutakura kugona kwePCB board.
Chiitiko chePCB wiring ndechekuti: kuwedzera hukobvu hwemhangura, kuwedzera dhayamita yewaya, uye kuvandudza kupisa kwePCB kunogona kuwedzera kugona-kutakura kwePCB.
Saka kana ini ndichida kumhanyisa ikozvino ye100 A, ndinogona kusarudza hukobvu hwemhangura hwe4 OZ, kuseta hupamhi hwekutevera kusvika 15 mm, mitsetse ine mativi maviri, uye kuwedzera sink yekupisa kuderedza kupisa kwePCB nekuvandudza. kugadzikana.
02
Nzira yechipiri: terminal
Mukuwedzera kune wiring paPCB, wiring posts inogona kushandiswa zvakare.
Gadzirisa materminals akati wandei anogona kumira 100 A paPCB kana chigadzirwa goko, senge peasa gomo nzungu, PCB zviteshi, mbiru mbiru, etc. Zvino shandisa zviteshi zvakadai semhangura lugs kubatanidza waya anogona kutsungirira 100 A kusvika zviteshi.Nenzira iyi, mafungu makuru anogona kupfuura nepakati waya.
03
Nzira yechitatu: tsika yemhangura bhasi
Kunyange mazariro emhangura anogona kugadzirwa.Itsika yakajairika muindasitiri kushandisa masimbi emhangura kutakura mafungu makuru.Semuenzaniso, transformers, server cabinets uye mamwe maapplication anoshandisa mbariro dzemhangura kutakura mafungu makuru.
04
Nzira 4: Nzira yakakosha
Mukuwedzera, kune mamwe maitiro akakosha ePCB, uye ungasakwanisa kuwana mugadziri muChina.Infineon ine rudzi rwePCB ine 3-layer copper layer dhizaini.Mitsara yekumusoro uye yepasi isigning wiring layers, uye iyo yepakati dhizaini yemhangura ine ukobvu hwe1.5 mm, iyo inonyanya kushandiswa kuronga simba.Rudzi urwu rwePCB runogona kuve diki muhukuru.Kuyerera pamusoro pe100 A.