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Uyenza kanjani imboni yokuxazulula inkinga yesistimu yokuphakelwa kwamandla kwehabhu le-USB C


Isikhathi sokuthumela: Oct-29-2021

E-Guangdong Dongguan, kunezimboni ezimbalwa zezimboni ezimbalwa, yingakho idolobha libize ifektri yomhlaba.Phakathi kwalawa mafekthri, imboni yehabhu le-USB ingenye yemikhiqizo ezenzakalelayo, okusho ukuthi zisebenzisa ubuchwepheshe obusha kakhulu ukuthuthukisa izinkinga zokukhiqiza.

Inethiwekhi ye-USB yakhiwe kusukela kumahabhu e-USB axhunywe ezansi komfula kumachweba we-USB, wona ngokwawo angase asuke kumahabhu e-USB.Amahabhu e-USB anganweba inethiwekhi ye-USB afike ezingeni eliphezulu lezimbobo ezingu-127.Ukucaciswa kwe-USB kudinga ukuthi amahabhu anamandla ebhasi (okungenziwa) angaxhunywanga ochungechungeni kwamanye amahabhu anamandla ebhasi.

Ngokuya ngomthengisi nokuklama, izimbobo ze-USB zivame ukuhlukanisiwe.Ngenxa yalokho, ukuxhuma idivayisi endaweni eyodwa kungase kuvimbe ngokoqobo imbobo eseduze, ikakhulukazi uma ipulaki ingeyona ingxenye yekhebula kodwa iyingxenye yedivayisi efana ne-USB flash drive.Amalungu afanayo avundlile amasokhethi avundlile angase abe lula ukuwenza, kodwa angabangela kuphela izimbobo ezimbili kwezine ukuthi zisebenziseke (kuye ngokuthi ububanzi bepulaki).

Amalungu afanayo embobo lapho umumo wembobo uncike kakhulu kuhlelo lwamalungu afanayo ngokuvamile anezinkinga ezimbalwa zokuvinjwa.Amahabhu “Engwane” noma “Ingwane” yangaphandle (enesokhethi ngayinye ekugcineni kwekhebula elifushane kakhulu, ngokuvamile elicishe libe ngamayintshi angu-2 (5 cm) ubude), noma “amahabhu enkanyezi” (ichweba ngalinye libheke ohlangothini oluhlukile, njengoba kuboniswe esithombeni. ) gwema le nkinga ngokuphelele.

Ukulinganiselwa kobude
Izintambo ze-USB zikhawulelwe kumamitha angu-3 (amafidi angu-10) kumadivayisi anesivinini esiphansi se-USB 1.1.Ihabhu ingasetshenziswa njengesiphindaphinda se-USB esisebenzayo ukuze kunwetshwe ubude bekhebula bufike kumamitha angu-5 (amafidi angu-16) ubude ngesikhathi.Izintambo ezisebenzayo (amahabhu embobo eyodwa eyisixhumi esikhethekile ashumekwe isixhumi esisodwa) enza umsebenzi ofanayo, kodwa njengoba enamandla webhasi, amahabhu e-USB anikwe amandla ngaphandle angase adingeke kwamanye amasegimenti.

Amandla
Ihabhu elinamandla ebhasi (ihabhu le-passive) liyihabhu elidonsa wonke amandla alo kusixhumi esibonakalayo se-USB yekhompyutha yomsingathi.Ayidingi uxhumano lwamandla oluhlukile.Kodwa-ke, amadivaysi amaningi adinga amandla amaningi kunale ndlela engahlinzeka ngayo futhi ngeke asebenze kulolu hlobo lwehabhu.Kungase kufiseleke ukusebenzisa ihabhu elinamandla ebhasi elinama-hard disk angaphandle azishayelayo, njengoba i-hard disk ingase ingajiki phansi lapho ikhompuyutha icisha noma ingena kumodi yokulala kuyilapho isebenzisa ihabhu elizishayelayo kusukela isilawuli se-hard disk. izoqhubeka nokubona umthombo wamandla ezimbobeni ze-USB.

Amandla kagesi e-USB anikezwa ngamayunithi angu-100 mA kuze kufike ku-500 mA ngembobo ngayinye.Ngakho-ke, ihabhu elinamandla lebhasi elithobelayo alikwazi ukuba nezimbobo ezingaphezulu kwezine eziya ezansi nomfula futhi ayikwazi ukunikeza amayunithi angaphezu kwamane angu-100 mA wamanje esewonke kumadivayisi ahamba ngaphansi komfula (njengoba ihabhu idinga iyunithi eyodwa ngokwayo).Uma idivayisi idinga amayunithi amaningi wamanje kunokuba imbobo exhunywe kuyo ikwazi ukuhlinzeka, isistimu yokusebenza ngokuvamile ibika lokhu kumsebenzisi.

Ngokuphambene, ihabhu elizishayelayo (ihabhu elisebenzayo) lithatha amandla alo kuyunithi yamandla yangaphandle futhi linganikeza amandla aphelele (afika ku-500 mA) kuzo zonke izimbobo.Amahabhu amaningi angasebenza njengamahabhu ahamba ngebhasi noma asebenza ngokwawo.

Kodwa-ke, kunamahabhu amaningi angahambisani nemithetho emakethe azimemezela kumsingathi njenganamandla okuzenzela ngaphandle kokuthi ahamba ngamabhasi ngempela.Ngokulinganayo, kunamadivayisi amaningi angathobeli asebenzisa ngaphezu kuka-100 mA ngaphandle kokumemezela leli qiniso.Lawa mahubhu namadivayisi avumela ukuguquguquka okwengeziwe ekusetshenzisweni kwamandla (ikakhulukazi, amadivaysi amaningi asebenzisa ngaphansi kakhulu kuka-100 mA futhi izimbobo eziningi ze-USB zingahlinzeka ngaphezu kuka-500 mA ngaphambi kokungena ekuvaleni ukugcwala ngokweqile), kodwa kungenzeka izinkinga zamandla okunzima ukuzixilonga.

Amanye amahabhu azenzela amandla awanikezi amandla anele okushayela umthwalo ongu-500 mA kuzo zonke izimbobo.Isibonelo, amahabhu amaningi embobo ayisikhombisa anokunikezwa kwamandla okungu-1 A, kuyilapho empeleni izimbobo eziyisikhombisa zingadonsa ubukhulu obungu-7 x 0.5 = 3.5 A, kanye namandla ehabhu ngokwayo.Abaklami bacabanga ukuthi umsebenzisi cishe uzoxhuma amadivayisi amaningi anamandla aphansi futhi eyodwa noma amabili kuphela adinga u-500 mA ogcwele.Ngakolunye uhlangothi, ukupakishwa kwamanye amahabhu azenzela amandla kusho ngokusobala ukuthi mangaki amachweba angashayela umthwalo ogcwele we-500 mA ngesikhathi esisodwa.Isibonelo, iphakheji yehabhu enezimbobo eziyisikhombisa ingase ithi isekela ubuningi bamadivayisi amane okulayisha okugcwele.

Amahabhu anamandla amakhulu angamahabhu angasebenza njengamahabhu anamandla webhasi kanye nezizihambela ngokwawo.Bangakwazi ukushintsha ngokuzenzakalelayo phakathi kwamamodi kuye ngokuthi ukunikezwa kwamandla okuhlukile kuyatholakala noma cha.Nakuba ukusuka ekusebenzeni okunamandla ebhasi ukuya kokuzihambela ngokwawo akudingi ukuxoxisana kabusha ngokushesha nomsingathi, ukusuka ekusebenzeni okunamandla okuzihambela uye kosebenzisa amandla ebhasi kungase kubangele ukuxhumeka kwe-USB kuhlehliswe uma amadivayisi axhunyiwe ayecelwe ngaphambilini amandla angaphezu kwalawo atholakala ebhasini- imodi enikwe amandla.


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