Mapangidwe anthawi zonse a PCB sadutsa 10 A, kapena 5 A. Makamaka pamagetsi apanyumba ndi ogula, nthawi zambiri zomwe zikuchitika pa PCB sizidutsa 2 A.
Njira 1: Mapangidwe a PCB
Kuti tidziwe momwe PCB ilili, timayamba ndi mawonekedwe a PCB.Tengani pawiri wosanjikiza PCB monga chitsanzo.Mtundu uwu wa board board nthawi zambiri umakhala ndi magawo atatu: khungu lamkuwa, mbale, ndi khungu lamkuwa.Khungu lamkuwa ndi njira yomwe magetsi ndi chizindikiro mu PCB amadutsa.Malingana ndi chidziwitso cha sayansi ya sukulu ya pulayimale, tikhoza kudziwa kuti kukana kwa chinthu kumakhudzana ndi zinthu, malo ozungulira, ndi kutalika.Popeza kuti panopa timayendetsa pakhungu lamkuwa, resistivity imakhazikika.Dera lamtanda limatha kuwonedwa ngati makulidwe a khungu lamkuwa, lomwe ndi makulidwe amkuwa muzosankha za PCB.Nthawi zambiri makulidwe amkuwa amawonetsedwa mu OZ, makulidwe amkuwa a 1 OZ ndi 35 um, 2 OZ ndi 70 um, ndi zina zotero.Ndiye zikhoza kuganiziridwa mosavuta kuti pamene mphamvu yaikulu iyenera kuperekedwa pa PCB, waya ayenera kukhala waufupi komanso wandiweyani, ndipo makulidwe a mkuwa a PCB, ndibwino.
Mu uinjiniya weniweni, palibe muyezo wokhazikika wa kutalika kwa waya.Nthawi zambiri ntchito uinjiniya: mkuwa makulidwe / kutentha kukwera / waya awiri, zizindikiro zitatuzi kuyeza panopa kunyamula mphamvu ya bolodi PCB.
PCB mawaya zinachitikira ndi: kuonjezera makulidwe mkuwa, kukulitsa m'mimba mwake waya, ndi kuwongolera kutentha disipation wa PCB akhoza kumapangitsanso mphamvu panopa kunyamula PCB.
Chifukwa chake ngati ndikufuna kuyendetsa makina a 100 A, nditha kusankha makulidwe amkuwa a 4 OZ, kuyika m'lifupi mwake mpaka 15 mm, kutsata mbali ziwiri, ndikuwonjezera choyatsira kutentha kuti muchepetse kutentha kwa PCB ndikuwongolera. bata.
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Njira 2: terminal
Kuphatikiza pa waya pa PCB, ma wiring posts angagwiritsidwenso ntchito.
Konzani materminal angapo omwe amatha kupirira 100 A pa PCB kapena chipolopolo chamankhwala, monga mtedza wapamtunda, ma terminals a PCB, mizati yamkuwa, ndi zina. Kenako gwiritsani ntchito ma terminals monga zingwe zamkuwa kulumikiza mawaya omwe amatha kupirira 100 A mpaka ma terminals.Mwanjira imeneyi, mafunde akuluakulu amatha kudutsa mawaya.
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Njira yachitatu: makonda amkuwa basi
Ngakhale mipiringidzo yamkuwa imatha kusinthidwa.Ndichizoloŵezi chofala m'makampani kugwiritsa ntchito mipiringidzo yamkuwa kunyamula mafunde akuluakulu.Mwachitsanzo, ma transfoma, makabati a seva ndi ntchito zina amagwiritsa ntchito mipiringidzo yamkuwa kunyamula mafunde akulu.
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Njira 4: Njira yapadera
Kuphatikiza apo, pali njira zina zapadera za PCB, ndipo mwina simungathe kupeza wopanga ku China.Infineon ili ndi mtundu wa PCB wokhala ndi mapangidwe atatu osanjikiza amkuwa.Zigawo zam'mwamba ndi zapansi ndi zigawo za mawaya azizindikiro, ndipo wosanjikiza wapakati ndi wosanjikiza wamkuwa wokhala ndi makulidwe a 1.5 mm, omwe amagwiritsidwa ntchito mwapadera kukonza mphamvu.PCB yamtunduwu imatha kukhala yaying'ono kukula.Kuyenda pamwamba pa 100 A.