Ku-electronics, ukuhlanganiswa kobuchwepheshe obuthuthukisiwe kanye nomklamo ophumelelayo kubalulekile.Abanikeli ababili ababalulekile kulo mkhakha ukuguqulwa kwekhodi ye-pulse (PCM) kanye namabhodi esekethe aphrintiwe (PCB).I-PCM ne-PCB zisetshenziswa kabanzi kumishini kagesi ehlukahlukene, futhi ngayinye inezinzuzo nezici zayo.Kule bhulogi, sizohlukanisa umehluko namandla wama-PCM nama-PCB ukuze sinqume ukuthi iyiphi inketho engcono ngezidingo zakho.
PCM (Pulse Code Modulation):
I-Pulse Code Modulation iyindlela yedijithali yokumela amasignali e-analog.Iguqula amasiginali e-analog abe yidijithali futhi isetshenziswa kakhulu ezinhlelweni zomsindo ezifana nokuqoshwa nokukhiqizwa komculo.I-PCM ngezikhathi ezithile ithwebula i-amplitude yesampula ngayinye yesiginali ye-analogi futhi iyimele ngokwedijithali.Le nqubo yesampula ikhiqiza kabusha ngokunembile isignali ye-analog yangempela.I-PCM inikeza ukucaciseleka okuhle kakhulu komsindo futhi yaziwa ngokwethembeka kwayo okuphezulu, okuyenza ilungele ukuklama amasistimu omsindo nezinto zokusebenza ezidinga ikhwalithi yomsindo engaxegi.
PCB (Printed Circuit Board):
Amabhodi wesifunda aphrintiwe ayisisekelo esibonakalayo semishini kagesi, ehlinzeka ngenkundla yokuxhumanisa izingxenye ezahlukahlukene.I-PCB iqukethe izindlela eziguquguqukayo eziqoshwe ku-non-conductive substrate ukuze inikeze ukuxhumana kukagesi nokusekelwa kwemishini kwezingxenye.Ama-PCB enza kube lula ukuhlelwa nokuxhumana kwezingxenye ze-elekthronikhi ezihlukahlukene ezifana nama-resistors, ama-capacitor nama-microchips.Ukuvumelana nezimo komklamo we-PCB kuvumela ukuhlelwa kwesekethe eyinkimbinkimbi, kuyenze isetshenziswe kabanzi ezimbonini ezihlukahlukene ezifana nezokuxhumana ngocingo, i-aerospace, kanye ne-electronics yabathengi.
Izici ezihlukanisayo:
1. Umsebenzi:
I-PCM igxile kakhulu ekucubunguleni isignali yomsindo wedijithali ukuze inikeze ukukhiqizwa komsindo kwekhwalithi ephezulu.Ngakolunye uhlangothi, ama-PCB aneqhaza ekusebenzeni okuphelele kwezinto zikagesi, enze kube lula ukuxhumana kwezingxenye ezihlukahlukene futhi anikeze ukuzinza ohlelweni.Nakuba ama-PCM eyingxenye ebalulekile yezinhlelo zomsindo, ama-PCB asetshenziswa cishe kuzo zonke izisetshenziswa zikagesi, kusukela kuma-smartphone kuya emishinini yezokwelapha.
2. Ubunkimbinkimbi bomklamo:
I-PCM ikakhulukazi ihlanganisa ama-algorithms esofthiwe nezindlela ezithuthukisiwe zokucubungula isignali.Yize idinga ubungcweti bobunjiniyela bomsindo namakhono wokuhlela ukuze kuthuthukiswe ukusebenza kwayo, ilula uma kuqhathaniswa nesakhiwo somzimba.Ngokuphambene, idizayini ye-PCB idinga ukuhlela ngokucophelela isakhiwo, ukubekwa kwengxenye, nokuhlaziywa kokuxhumeka kukagesi.Kudinga ulwazi lobunjiniyela bakagesi kanye nezinqubo zokuklama ezisebenzayo ukuze kuzuzwe ukusebenza okufunayo.
3. Ukuhlukahluka:
I-PCM yakhelwe ngokukhethekile izinhlelo zokusebenza zomsindo ukuze kuqinisekiswe ukumelwa okunembile komsindo nokunciphisa ukuhlanekezela.Umgomo wayo oyinhloko ukulondoloza ubuqotho besignali yomsindo esizindeni sedijithali.Ngakolunye uhlangothi, ama-PCB awanqunyelwe kunoma yiluphi uhlelo lokusebenza noma imboni.Ukuhlukahluka kwazo kuzivumela ukuthi zenziwe ngendlela oyifisayo ukuze zihlangabezane nezidingo zanoma iyiphi idivayisi kagesi, kungaba isidlali somculo esiphathwayo noma uhlelo lokuxhumana ngesathelayithi.
Ekuphetheni:
Kokubili ama-PCM nama-PCB angabahlanganyeli ababalulekile emkhakheni wezogesi, ngayinye isebenzela injongo ehlukile.I-PCM iyinketho yokuqala yonjiniyela bomsindo nama-audiophiles ngekhwalithi yomsindo engenasici.Ama-PCB ayisisekelo lapho amasistimu e-elekthronikhi ayinkimbinkimbi akhelwe phezu kwawo, aqinisekisa ukuxhumana okufanele nokuzinza.Nakuba ama-PCM kanye nama-PCB ehluka ekusebenzeni nasekuklanyweni, avame ukusetshenziswa ndawonye emishinini kagesi, ehlanganisa amandla awo ahlukile.
Ekugcineni, yehlela ezidingweni ezithile zephrojekthi yakho noma okokusebenza.Ukuqonda umehluko nezici zama-PCM nama-PCB kuzokuvumela ukuthi wenze isinqumo esinolwazi ngokusekelwe ezidingweni zakho.Ngakho-ke noma wakha isistimu ye-hi-fi noma udala okokusebenza kukagesi okusebenzayo, ama-PCM nama-PCB angamathuluzi abalulekile okuthuthukisa ubuchwepheshe.
Isikhathi sokuthumela: Jul-03-2023