Muburyo bwo gushushanya pcb, mbere yo kunyuramo, muri rusange dusaba ibintu dushaka gushushanya, no kubara amakosa dushingiye ku bunini, substrate, umubare wibice nandi makuru. Nyuma yo kubara, ibintu bikurikira birashobora kuboneka muri rusange.

Nkuko bigaragara ku ishusho yavuzwe haruguru, igishushanyo mbonera cyarangiye hejuru muri rusange kigenzurwa na Ohms 50, abantu benshi bazabaza impamvu basabwa kuyobora bakurikije 25 ohms cyangwa 80 opms?
Mbere ya byose, ohms 50 ohms yatoranijwe kubisanzwe, kandi abantu bose bari mu nganda bemera agaciro. Muri rusange, urwego runaka rugomba gushyirwamo numuryango uzwi, kandi abantu bose barimo gushushanya bakurikije amahame.
Igice kinini cyikoranabuhanga rya elegitoronike riva mu gisirikare. Mbere ya byose, ikoranabuhanga rikoreshwa mu gisirikare, kandi buhoro ryimurirwa mu gisirikare kugeza ku ikoreshwa rya gisivili. Mu minsi ya mbere yo gusaba Microwave, mu gihe cya kabiri cy'isi yose, guhitamo kwimuka kwari gushingiye ku bikenewe, kandi nta gaciro gasanzwe. Hamwe no gutera imbere ikoranabuhanga, ibipimo byibanga bigomba gutangwa kugirango ugabanye uburimbane hagati yubukungu noroshye.

Muri Amerika, imiyoboro ikunze gukoreshwa ifitanye isano ninkoni iriho hamwe nimiyoboro y'amazi. 51.5 ohms irasanzwe, ariko abadapte hamwe nabahindura babonye kandi bakoreshwa ni 50-51.5 oms; Ibi byakemuwe kubisirikare bihuriweho hamwe na Navy. Ikibazo, Ishirahamwe ryitwa Jan ryashinzwe (nyuma Destution ishyirahamwe), ryateguwe na mil, kandi amaherezo ryatoranijwe na ohms 50 nyuma yo gutekereza ku minsi itandukanye. Amahame.

Muri iki gihe, ibipimo by'Uburayi byari 60 ohms. Bidatinze, bayobowe n'amasosiyete yiganje nka Hewlett-Pacdard, Abanyaburayi na bo bahatiwe guhinduka, nyuma yo kuri Ahms 50 amaherezo babaye amahame mu nganda. Byabaye ikoraniro, kandi PCB ihuriye mu migozi itandukanye irasabwa kugirango yubahirize igipimo cya 50 Ohm kibangamira induru ihuye.

Icya kabiri, gushyiraho ibipimo rusange bizashingira kubitekerezo byuzuye bya PCB nigikorwa no gushushanya imikorere no kubishoboka.

Dukurikije uburyo bwo gutanga umusaruro wa PCB no gutunganya Ikoranabuhanga mu gutunganya, no gusuzuma ibikoresho by'umurimo wa PCB buriho, biroroshye kubyara PCB hamwe na 50 Ohm. Uhereye kubikorwa byo kubabara, birashobora kugaragara ko inzego nkeya zisaba ubugari bwagutse hamwe nubuzima bunanutse cyangwa imitima minini yo guhoraho, bigorana kubahiriza ikigo giteye ubwoba mumwanya; Inzitizi nini cyane isaba umurongo utoroshye kandi itangazamakuru rinini cyangwa imyuka mito idafasha guhagarika EMI na Constalk. Muri icyo gihe, kwizerwa byo gutunganya imbaho ​​nyinshi kandi bivuye ku musaruro rusange uzaba urwaye. Igenzura kuri 50 ohm. Mubidukikije byo gukoresha imbaho ​​zisanzwe (Fr4, nibindi) hamwe nimbaho ​​zisanzwe, zitanga ibicuruzwa bisanzwe byinama (nka 1mm, 1.2m, nibindi). Ubugari busanzwe bwo hagati (4 ~ 10mil) birashobora gukemurwa. Uruganda ruroroshye cyane gutunganya, nibisabwa ibikoresho byo gutunganya ntabwo ari hejuru cyane.

Duhereye ku gishushanyo cya PCB, 50 ohms nacyo cyatoranijwe nyuma yo gutekereza cyane. Kuva mu mikorere ya PCB Ibimenyetso bya PCB, Impengahe Muke muri rusange nibyiza. Kubwumurongo wohereza hamwe nubugari bwatanzwe, intera iri hafi yindege ni, EMI ihuye izagabanuka, kandi uburoko nabwo izagabanuka. Ariko, ukurikije inzira yuzuye y'Ikimenyetso, kimwe mu bintu bikomeye cyane bigomba gusuzumwa, ni ukuvuga ubushobozi bwa chip. Mu minsi ya mbere, chip nyinshi ntizishobora gutwara imirongo ihererekanyabubasha ifite intoki munsi ya ohms zirenga 50 ohms, hamwe no kohereza imirongo hamwe nimpinduka nyinshi ntibyari byoroshye kubishyira mubikorwa. 50 ohm impetance ikoreshwa nkubwumvikane.

Inkomoko: Iyi ngingo yimuriwe kuri enterineti, kandi uburenganzira ni ubw'umwanditsi wumwimerere.