Isingeniso kuma-Type-C Connectors
Uhlobo C lwe-USBIvele njengomdlali ovelele emakethe ngenxa yezinzuzo zayo zokuxhuma futhi manje isiseduze nokufinyelela esicongweni. Ukusetshenziswa kwayo emikhakheni eyahlukene akunqandeki. I-MacBook ye-Apple yenze abantu baqaphela ukulula kwesixhumi se-USB Type-C futhi yembule nokuthambekela kokuthuthukiswa kwamadivayisi esikhathi esizayo. Ezinsukwini ezizayo, kuzokwethulwa amadivayisi e-USB Type-C amaningi. Akungabazeki ukuthi isixhumi se-USB Type-C sizosabalala kancane kancane futhi sibuse imakethe eminyakeni embalwa ezayo. Ngaphezu kwalokho, kumadivayisi eselula afana namafoni namathebulethi, inezici eziningana ezivumela ukushaja okusheshayo, isivinini sokudlulisa idatha esiphezulu, kanye nokusekelwa kokukhipha kokubonisa. Ifaneleka kakhulu njengesixhumi sokukhipha samadivayisi eselula. Okubaluleke kakhulu, kunesidingo esikhulu sesixhumi sokuxhumana esibanzi ukuze kuthuthukiswe ukuxhumana phakathi kwamadivayisi ahlukahlukene. Lezi zici zingenza isixhumi sokuxhumana se-Type-C sibe isixhumi esihlanganisiwe sesikhathi esizayo, hhayi nje emasimini ohlelo lokusebenza owabonayo!
Uma yakhelwe ngokuvumelana nezindinganiso zemboni ze-USB Association, isixhumi se-USB Type-C nakanjani sizoba semfashinini, sincane, futhi sincane, sifanele amadivayisi eselula. Ngesikhathi esifanayo, sidinga ukuhlangabezana nezidingo zamandla aphezulu zenhlangano futhi sifanelekele izinhlelo zokusebenza ezahlukahlukene zezimboni. Isixhumi se-USB Type-C sinikeza isixhumi esibonakalayo sepulaki esiphendukayo; isokhethi singafakwa kunoma iyiphi indlela, senza uxhumano lube lula futhi luthembeke. Lesi sixhumi sidinga futhi ukusekela amaphrothokholi amaningi ahlukene futhi singahambisana ne-HDMI, i-VGA, i-DisplayPort, nezinye izinhlobo zokuxhumeka kusuka echwebeni elilodwa le-USB lohlobo lwe-C ngokusebenzisa ama-adapter. Ukuze kubhekwe ukusebenza kokuphazanyiswa kwe-electromagnetic (EMI) nezinye izindawo ezinzima, kudingeka ukucatshangelwa okwengeziwe kokuklama. Kunconywa ukuthi abakhiqizi bakhethe abahlinzeki besixhumi abanesitifiketi se-TID ukuze bagweme izinkinga ezinhlelweni zokusebenza ze-terminal!
IUhlobo lwe-USB C 3.1isikhombikubona sinezinzuzo eziyisithupha ezinkulu:
1) Ukusebenza okugcwele: Isekela idatha, umsindo, ividiyo, kanye nokushaja ngasikhathi sinye, ibeka isisekelo sedatha esheshayo, umsindo wedijithali, ividiyo enencazelo ephezulu, ukushaja okusheshayo, kanye nokwabelana ngamadivayisi amaningi. Ikhebula elilodwa lingathatha indawo yezintambo eziningi ezazisetshenziswa ngaphambili.
2) Ukufakwa okubuyela emuva: Kufana ne-interface ye-Apple Lightning, ingaphambili nangemuva kwe-port kuyafana, kusekela ukufakwa okubuyela emuva.
3) Ukudluliselwa kwe-Bidirectional: Idatha namandla kungadluliselwa kuzo zombili izinhlangothi.
4) Ukuhambisana nokubuyela emuva: Ngama-adapter, ingahambisana ne-USB Type-A, Micro-B, nezinye izixhumi ezixhunyanisiwe.
5) Usayizi omncane: Usayizi wesixhumi esibonakalayo ungu-8.3mm x 2.5mm, cishe ingxenye yesithathu yosayizi wesixhumi esibonakalayo se-USB-A.
6) Isivinini esiphezulu: Iyahambisana neI-USB 3.1iphrothokholi, ingasekela ukudluliswa kwedatha okufika ku-10Gb/s, njengokuthiI-USB C 10GbpsfuthiI-USB 3.1 Gen 2amazinga, okufinyelela ukudluliselwa okusheshayo kakhulu.
Imiyalelo Yokuxhumana ye-USB PD
I-USB - Ukulethwa Kwamandla (i-USB PD) iyincazelo yephrothokholi evumela ukudluliswa ngasikhathi sinye kwamandla afinyelela ku-100W kanye nokuxhumana kwedatha ngekhebula elilodwa; I-USB Type-C iyincazelo entsha ngokuphelele yesixhumi se-USB esingasekela uchungechunge lwezindinganiso ezintsha njenge-USB 3.1 (Gen1 kanye ne-Gen2), Imbobo Yokubonisa, kanye ne-USB PD; i-voltage ephezulu esekelwayo kanye nogesi wembobo ye-USB Type-C ingu-5V 3A; uma i-USB PD isetshenziswa embobeni ye-USB Type-C, ingasekela amandla angu-240W achazwe kuncazelo ye-USB PD, ngakho-ke, ukuba nembobo ye-USB Type-C akusho ukuthi isekela i-USB PD; I-USB PD ibonakala iyiphrothokholi nje yokudlulisa amandla nokuphatha, kodwa empeleni, ingashintsha izindima zembobo, ixhumane nezintambo ezisebenzayo, ivumele i-DFP ukuthi ibe yidivayisi yokunikeza amandla kanye neminye imisebenzi eminingi ethuthukisiwe. Ngakho-ke, amadivayisi asekela i-PD kumele asebenzise ama-chip e-CC Logic (ama-chip e-E-Mark), isibonelo, ukusebenzisaIkhebula le-USB C elingu-5A elingu-100Wingafinyelela ukuphakelwa kukagesi okusebenzayo.
Ukutholwa Kwamanje kwe-USB Type-C VBUS kanye Nokusetshenziswa Kwamanje
I-USB Type-C ingeze imisebenzi yokuthola nokusetshenziswa kwamanje. Kuye kwaqaliswa izindlela ezintathu ezintsha zamanje: imodi yamandla e-USB ezenzakalelayo (500mA/900mA), 1.5A, kanye ne-3.0A. Lezi zindlela ezintathu zamanje ziyadluliswa futhi zitholwe ngamaphini e-CC. Kuma-DFP adinga ikhono lokukhipha amandla okusakaza, kudingeka amanani ahlukene ama-resistors e-CC pull-up Rp ukuze kufezwe lokhu. Kuma-UFP, inani le-voltage kuphini le-CC lidinga ukutholwa ukuze kutholakale ikhono lokukhipha amandla lamanje lenye i-DFP.
Ukuphathwa Nokutholwa Kwe-DFP-kuya-ku-UFP kanye ne-VBUS
I-DFP iyichweba le-USB Type-C elitholakala ku-host noma ihabhu, elixhunywe kudivayisi. I-UFP iyichweba le-USB Type-C elitholakala kudivayisi noma kuhabhu, elixhunywe ku-DFP yomphathi noma yehabhu. I-DRP iyichweba le-USB Type-C elingasebenza njenge-DFP noma i-UFP. I-DRP ishintsha phakathi kwe-DFP ne-UFP njalo ngemva kwama-50ms kumodi yokulinda. Uma ushintshela ku-DFP, kumele kube ne-resistor Rp edonsa phezulu ku-VBUS noma umphumela womthombo wamanje kuphini le-CC. Uma ushintshela ku-UFP, kumele kube ne-resistor Rd edonsa phansi ku-GND kuphini le-CC. Lesi senzo sokushintsha kumele siqedwe yi-chip ye-CC Logic.
I-VBUS ingakhishwa kuphela uma i-DFP ithola ukufakwa kwe-UFP. Uma i-UFP isisusiwe, i-VBUS kumele icishwe. Lo msebenzi kumele uqedwe yi-chip ye-CC Logic.
Qaphela: I-DRP eshiwo ngenhla ihlukile ku-USB-PD DRP. I-USB-PD DRP ibhekisela kuma-power port asebenza njengoMthombo Wamandla (umhlinzeki) kanye ne-Sink (umthengi), isibonelo, i-USB Type-C port kwi-laptop isekela i-USB-PD DRP, engasebenza njengoMthombo Wamandla (uma uxhuma idrayivu ye-USB noma ifoni ephathekayo) noma i-Sink (uma uxhuma i-monitor noma i-adapter yamandla).
Umqondo we-DRP, umqondo we-DFP, umqondo we-UFP
Ukudluliswa kwedatha kuqukethe ikakhulukazi amasethi amabili ezimpawu zokuhlukanisa, i-TX/RX. I-CC1 ne-CC2 ziyizikhonkwane ezimbili ezibalulekile ezinemisebenzi eminingi:
Ukuthola ukuxhumana, ukuhlukanisa phakathi kwezinhlangothi zangaphambili nangemuva, ukuhlukanisa phakathi kwe-DFP ne-UFP, okuyilungiselelo le-master-slave le-Vbus, kunezinhlobo ezimbili ze-USB Type-C kanye ne-USB Power Delivery.
Ukulungiselela i-Vconn. Uma kukhona i-chip kukhebula, i-CC eyodwa idlulisela isignali, kanti enye i-CC iba yi-Vconn yokunikezwa kwamandla. Ukulungiselela ezinye izindlela, njengalapho kuxhuma izesekeli zomsindo, i-DP, i-PCIE, kunemigqa emine yamandla neyomhlabathi ngayinye, i-DRP (Dual Role Port): i-dual-role port, i-DRP ingasetshenziswa njenge-DFP (Host), i-UFP (Device), noma ishintshe ngokuguquguqukayo phakathi kwe-DFP ne-UFP. Idivayisi ejwayelekile ye-DRP yikhompyutha (ikhompyutha ingasebenza njenge-USB host noma idivayisi ezoshajwa (i-MacBook Air entsha ye-Apple)), ifoni ephathekayo enomsebenzi we-OTG (ifoni ephathekayo ingasebenza njengedivayisi ezoshajwa futhi ifunde idatha, noma njenge-host yokunikeza amandla noma yokufunda idatha kusuka ku-USB drive), ibhange lamandla (ukukhipha nokushaja kungenziwa nge-USB Type-C eyodwa, okungukuthi, le port ingakhipha futhi ishaje).
Indlela ejwayelekile yokusebenzisa i-host-client (DFP-UFP) ye-USB Type-C
Umqondo we-CCpin
I-CC (Isiteshi Sokucushwa): Isiteshi Sokucushwa, lesi isiteshi esisanda kufakwa ku-USB Type-C. Imisebenzi yaso ifaka phakathi ukuthola ukuxhumana kwe-USB, ukuthola indlela efanele yokufaka, ukusungula nokuphatha ukuxhumana phakathi kwamadivayisi e-USB ne-VBUS, njll.
Kukhona i-resistor yokudonsa phezulu ephezulu i-Rp ku-CC pin ye-DFP, kanye ne-resistor yokudonsa phansi ephansi i-Rd ku-UFP. Uma ingaxhunywanga, i-VBUS ye-DFP ayinawo umphumela. Ngemva kokuxhumeka, i-CC pin ixhunyiwe, futhi i-CC pin ye-DFP izobona i-resistor yokudonsa phansi i-Rd ye-UFP, okubonisa ukuthi uxhumano lwenziwe. Ngemuva kwalokho, i-DFP izovula i-Vbus power switch kanye namandla okukhipha ku-UFP. Yiliphi i-CC pin (CC1, CC2) elibona i-resistor yokudonsa phansi elinquma isiqondiso sokufaka se-interface, futhi lishintsha i-RX/TX. I-resistance Rd = 5.1k, kanye ne-resistance Rp kuyinani elingaqinisekile. Ngokusho komdwebo odlule, kungabonakala ukuthi kunezindlela eziningana zokunikezwa kwamandla ze-USB Type-C. Ungawahlukanisa kanjani? Kusekelwe enanini le-Rp. I-voltage etholwe yi-CC pin ihlukile uma inani le-Rp lihlukile, bese ilawula ukuphela kwe-DFP ukuze isebenzise imodi yokunikezwa kwamandla. Kufanele kuqashelwe ukuthi amaphini amabili e-CC adwetshwe esithombeni esingenhla empeleni angumugqa owodwa we-CC kukhebula ngaphandle kwe-chip.
Isikhathi sokuthunyelwe: Novemba-03-2025
