Ekwakhiweni kwe-PCB, ukwakheka kudlala indima ethe xaxa kukho konke ukuklama kanye nesicelo somkhiqizo. Zonke izinyathelo zokuklama zidinga ukunakekelwa okuvelele nokucatshangelwa ukuze kufezeke kahle.
I-wiring ye-Right-Angle imvamisa iyisimo esidinga ukugwenywa ngangokunokwenzeka ku-PCB wiring, futhi cishe saba ngenye yezindinganiso zokulinganisa ikhwalithi ye-wiring. Ngakho-ke umthelela ongakanani i-wiring yokulahla eqinisweni unawo ekudluliseleni kwesiginali?
Okwesibili, amanani ehlukile ngenxa yezinqubo ezahlukahlukene zokukhiqiza.
Izinqubo ezahlukahlukene zokukhiqiza ziphumela ngezindleko ezihlukile. Njengebhodi enezimbobo zegolide kanye nebhodi enezitezi, ukwakheka komzila nokushaya, ukusetshenziswa kwemigqa yesikrini kasilika kanye nemigqa yamafilimu eyomile izokwakha izindleko ezihlukile, okuholela ekuhlukahlukani kwentengo.
Ngokwezimiso, ukulandelana kwesokudla kuzoshintsha umugqa ububanzi bomugqa wokuhambisa, okuholele ekuyekeni ukunqanyulwa kokuphazamiseka. Eqinisweni, hhayi kuphela umkhondo we-angle-angle, kodwa futhi neminonjana e-angle-angle ingadala izinguquko.
Umthelela wokulandela umkhondo we-angle oqoshwe kusiginali uboniswa ikakhulukazi ezicini ezintathu: Okokuqala, ekhoneni lingalingana nomthwalo we-capacitive kulayini wokuhambisa, wehlise isikhathi sokukhuphuka; Okwesibili, ukunqanyulwa kokungaphandle kuzodala ukuboniswa kwesiginali;
Okwesithathu yi-EMI ekhiqizwa yithiphu ye-angle efanele. I-parasitic paracitance ebangelwa i-angle-angle umugqa ungabalwa ngefomula elandelayo ebonakalayo: C = 61W (ER) 1/2 / z0 kufomula engenhla, iyunithi: pf),
Ubhekisela ububanzi bomkhondo (iyunithi: intshi), i-Eεr ibhekisela kwi-dielectric ihlala ephakathi nendawo, kanti i-z0 ingukuphazanyiswa komugqa wokuhambisa.
Njengoba ububanzi bomugqa womugqa we-anglel-angle unyuka, ubumsulwa lapho buzoncishiswa, ngakho-ke kwenzeka okuthile okusobala kwesibonakaliso. Singakwazi ukubala i-infladance efanayo ngemuva kokuthi ububanzi bomugqa bukhuphuke ngokuya ngefomula yokubala i-Implance okukhulunywa ngayo kwisahluko sokuhambisa.
Bese ubala i-coeffeeffeed ekhanyayo ngokuya ngefomula enamandla: ρ = (zs-z0) / (zs + z0). Ngokuvamile, ukuguqulwa kwe-impedance okubangelwa i-wiring ye-angle-angle kuphakathi kuka-7% no-20%, ngakho-ke i-coeffection ephezulu kakhulu icishe ibe ngu-0,1. UShenzhen Angeke PCB Co, LTD
Isikhathi sePosi: Jun-25-2022
