Mawaya mfundo PCB awiri wosanjikiza bolodi

PCB ndi gawo lofunikira lamagetsi komanso magwero a zida zonse zamagetsi.Zakhala zovuta kwambiri kuyambira pomwe zidawonekera mdziko lomaliza.Kuchokera pagawo limodzi kupita pawiri-wosanjikiza, zinayi zosanjikiza, ndiyeno kumagulu ambiri, zovuta zapangidwe zikuwonjezekanso.chachikulu.Pali mawaya kumbali zonse ziwiri za gulu lachiwiri, zomwe zimathandiza kwambiri kuti timvetsetse ndikudziŵa mfundo yake ya waya.Tiyeni tione mawaya mfundo ya PCB awiri bolodi.

The PCB pansi pawiri bolodi lapangidwa mu mawonekedwe a mpanda kuzungulira bokosi mawonekedwe, ndiye kuti, mbali PCB kwambiri kufanana pansi, ndi mbali ina ndi ofukula pansi waya kukopera bolodi, ndiyeno iwo olumikizidwa kudutsa. ndi vias metallized (kupyolera-bowo kukana ndi ang'onoang'ono).

Poganizira kuti payenera kukhala waya pansi pafupi ndi chipangizo chilichonse cha IC, nthawi zambiri waya wapansi amapangidwa pa 1 ~ 115cm iliyonse, zomwe zingapangitse kuti dera la chizindikirocho likhale laling'ono ndikuthandizira kuchepetsa kuwala.Njira yopangira maukonde iyenera kukhala patsogolo pa mzere wa chizindikiro, apo ayi ndizovuta kukhazikitsa.

Mfundo yolumikizira mizere ya Signal:

Pambuyo wololera masanjidwe zigawo zikuluzikulu anatsimikiza, kutsatiridwa ndi awiri wosanjikiza bolodi, ndiye kamangidwe ka nthaka kutchinga waya, ndiyeno mawaya zofunika (tcheru waya, mkulu pafupipafupi waya ndi wamba waya kumbuyo).Mawaya ovuta ayenera kukhala ndi mphamvu zosiyana, kubwerera pansi, mawaya ndi afupi kwambiri, choncho nthawi zina pansi pafupi ndi waya wovuta kwambiri amakhala pafupi ndi waya wa chizindikiro kuti chingwe chaching'ono chogwira ntchito chipangidwe.

Bolodi lazitsulo zinayi limakhala ndi pamwamba pawiri, ndipo pansi pa bolodi la wiring ndi mzere wa chizindikiro.Choyamba, nsalu yofunikira ya kristalo, kristalo wozungulira, wotchi yozungulira, mzere wa chizindikiro ndi ma CPU ena ayenera kutsatira mfundo ya malo ochepa otaya momwe angathere.

Pamene osindikizira mbale IC dera ntchito, kufalitsidwa dera amatchulidwa nthawi zambiri, amene kwenikweni lingaliro la ma radiation mode differential.Monga tanthawuzo la ma radiation amitundu yosiyanasiyana: mayendedwe apano akuyenda mumayendedwe azizindikiro, ndipo kuzungulira kwa chizindikiro kumatulutsa ma radiation a electromagnetic, omwe amayamba chifukwa chamitundu yosiyanasiyana yapano, kotero kuti mawonekedwe amtundu wamtunduwu amapangidwa ndi ma radiation. ma radiation, ndi mphamvu ya malo opangira radiation Njira yowerengera ndi: E1 = K1, f2, ia/gamma

Mtundu: E1 - bolodi yosiyana siyana, mphamvu yamagetsi yamagetsi yamagetsi ya PCB imatha kuwoneka kudzera munjira yosiyanitsira ma radiation formula, mphamvu ya radiation yam'munda imayenderana ndi ma frequency opangira f2, dera lozungulira, ndikugwiritsa ntchito pano, monga nthawi yodziwira ntchito Mafupipafupi f ndi kukula kwa malo oyenda ndi zinthu zofunika kwambiri zomwe tingathe kuzilamulira mwachindunji pakupanga.Panthawi imodzimodziyo, malinga ngati ntchito yothamanga ikugwirizana ndi kudalirika, kuthamanga, ndi zamakono, zazikulu zimakhala bwino, zochepetsetsa kugunda m'mphepete mwa chizindikiro, chigawo chachikulu cha harmonic, chotambasula kwambiri, chokwera kwambiri cha electromagnetic. ma radiation, iyenera kuwonetsedwa (pamwambapa) mphamvu yayikulu yapano, yomwe sitikufuna.

Ngati n'kotheka, zungulirani zolumikizira zovuta ndi waya pansi.Poyendetsa bolodi la PCB lachitsanzo chimodzi pambuyo pa chimzake, mawaya apansi omwe alipo amaphimba mipata yonse, koma chisamaliro chiyenera kuchitidwa pa mawaya onsewa pansi, zifukwazo zidzapanga mgwirizano waufupi komanso waukulu wochepa, womwe ukhoza kukwaniritsa zotsatira zabwino (Dziwani: Pali zofunikira za danga zomwe ziyenera kukwaniritsidwa, monga mtunda wa creepage).