Kev them nyiaj USB ua haujlwm li cas thiab vim li cas cov xov tooj tawg qee zaum
Jul 11, 2017| Universal Serial Bus (USB), tau dhau los ua ib qho ntawm cov chaw nres nkoj tshaj plaws uas peb pom ntawm peb lub PCs, laptops, smartphones, ntsiav tshuaj, koob yees duab, thiab ntau ntau ntawm lwm yam khoom siv. Sib nrug los ntawm kev hloov cov ntaub ntawv, nws kuj yog tus qauv rau kev them nyiaj feem ntau gadgets.
Tawm ntawm cov chaw nres nkoj muaj tswv tom qab (tshwj tsis yog Apple's Lightning ntawm chav kawm) USB tau so qhov kev xav tau ntawm cov khoom siv sib txawv thiab cov khoom siv hluav taws xob nrog cov chaw nres nkoj sib txawv. Nov yog chav kawm nrawm nrawm li cas USB tau them koj cov khoom siv.
Hom khoom siv USB?
Txawm hais tias nws lub npe, muaj plaub tus qauv niaj hnub no, USB 1.0, 2.0, 3.0 thiab 3.1. Tom qab ntawd muaj cov khoom sib txuas, USB A, USB B, microUSB, miniUSB thiab USB C tshiab. Ntau tshaj qhov interface nws yog ib qho tseem ceeb kom nkag siab txog cov qauv. Lub qub USB 1.0 thiab 2. Ob lub pins nqa cov ntaub ntawv thaum lwm tus muaj peev xwm txhawb nqa lub zog ntawm 5 volts. USB 3. Txhua qhov kev sib txuas USB suav nrog tus tswv tsev thiab lub cuab yeej. Hluav taws xob tsuas tuaj yeem ntws los ntawm tus tswv tsev mus rau lub cuab yeej, tab sis cov ntaub ntawv tuaj yeem hloov mus rau ob qho tib si.
Thaum nws los txog rau qhov tseeb tam sim no, muaj peb qhov chaw nres nkoj USB; ib tug qauv downstream chaw nres nkoj, ib tug them downstream chaw nres nkoj, thiab ib tug tshwj xeeb charging port. Thawj ob tuaj yeem pom ntawm koj lub PCs thiab laptops thiab hom thib peb feem ntau yog nyob ntawm chargers. Tus qauv downstream chaw nres nkoj ntawm USB 1.0 thiab 2.0 tuaj yeem xa mus txog 500mA lossis 0.5A. USB 3.0 txawm li cas los xij yuav siv qhov no mus txog 900mA lossis 0.9A. Kev them nqi qis qis thiab cov chaw them nyiaj tshwj xeeb muab txog 1,500mA lossis 1.5A. USB 3.1 uas yog qhov tseeb thiab ceev tshaj plaws, txhawb nqa dhau ntawm 10Gbps uas tseem hu ua SuperSpeed + hom. Qhov no kuj txhawb nqa lub peev xwm ntawm 1.5A thiab 3A.
USB-C yog, uas yog maj mam dhau los ua tus qauv tshiab, los nrog cov khoom sib txawv kiag li. Nws tuaj yeem txuas tau ob txoj hauv kev, ib yam li Apple Lightning connector nkaus xwb nrog cov duab sib txawv. Nws muaj peev xwm txhawb nqa ob lub peev xwm ntawm USB 3.0, uas txhais tau tias nws tuaj yeem muab lub zog ntau dua. Kev sib txuas ntawm USB-C txuas nrog USB 3.1 tus qauv ua rau nws yog ib qho kev sib txuas ceev tshaj plaws nyob ib puag ncig, ntau npaum li ntawd, Thunderbolt 3 tshiab.0 yog raws li USB-C thiab muaj peev xwm ntawm 40Gbps. Nco ntsoov, tias USB 3.1 tsis tas yuav tsum tau qhov chaw nres nkoj USB-C tshiab, nws tuaj yeem siv rau ntawm cov khoom qub qub thiab.
USB-C yog tam sim no hloov tus qauv microUSB thiab ib txwm siv USB-A cov chaw nres nkoj ntawm lub laptops ua tsaug rau nws lub peev xwm ceev thiab lub zog. Cov xov tooj zoo li OnePlus 3/3T thiab OnePlus 5 tshiab, txhawb nqa txog 4A them nyiaj. Laptops zoo li MacBook Pro thiab xyoo tas los 12-inch MacBook, lub rooj muag khoom cia siab rau USB-C lub zog nrog 45W adapter los ua kua dej. USB-C muaj qee qhov zoo dua vim nws tuaj yeem txhawb ntau qhov sib cuam tshuam xws li VGA, HDMI, Chaw nres nkoj zaub, suab nrov thiab ntau dua.
Kev sib koom tes
Qhov zoo yog, tag nrho cov qauv USB tshiab yog rov qab sib xws. Qhov no txhais tau tias yog tias koj siv lub charger 3A ntawm lub cuab yeej uas txhawb nqa 1A lossis 1.5A, nws yuav ua haujlwm zoo. Ib tug tuaj yeem ntsaws ib qho khoom siv USB rau hauv ib qho USB cable thiab rau hauv ib qho chaw nres nkoj USB. Kev them nqi siab dua yuav ua kom cov txheej txheem them nqi ntawm cov khoom siv qis qis thiab tsis muaj nws yuav tsis tawg. Tau kawg cov txheej txheem ceev yuav tsuas ua haujlwm yog tias koj muaj lub cuab yeej tshiab. Cov cuab yeej qub uas tsis ua raws li Cov Cai Them Nqi Them Nqi Tshaj Tawm los ntawm USB Implementers Forum hauv 2007, tsuas yog them tus nqi ntawm 0.5A.
Nrog ntau thiab ntau dua kev saws me nyuam ntawm USB 3.1 thiab USB-C chaw nres nkoj, peb tuaj yeem cia siab tias yuav them cov khoom siv ceev dua yav tom ntej, tshwj xeeb tshaj yog cov smartphones.
Koj lub xov tooj puas tuaj yeem tawg?
Lo lus teb yog, thiab tsis yog. Kuv paub tseeb tias koj tau pom cov xov xwm tshaj tawm ntawm cov xov tooj tawg thaum them nyiaj. Feem ntau, tus neeg ua txhaum tsis yog USB connector lossis cable. Cov xov tooj feem ntau tawg vim lub roj teeb tsis raug, zoo li cov ntaub ntawv tsis zoo ntawm Samsung Galaxy Note 7. Txawm li cas los xij, muaj lub caij nyoog me me uas lub charger faulty lossis cable tuaj yeem ua rau koj lub smartphone puas.
Qhov laj thawj tseem ceeb ntawm koj lub xov tooj tawg yog vim lub roj teeb lithium-ion sab hauv. Ib qho kev puas tsuaj sab nraud (thaum koj lub xov tooj poob) ua rau xau, lossis kev puas tsuaj sab hauv ua rau luv luv Circuit Court yog qhov ua rau tawg. Lwm rooj plaub yog thaum lub xov tooj them. Thaum koj them koj lub smartphone, nws feem ntau ua kub. Qhov no yog vim hais tias muaj ntau lub zog yog pumped rau hauv lub roj teeb thiab kev kub ceev. Qhov no ntxiv tuaj yeem ua rau muaj qhov luv luv hauv lub cev yog tias cov hlwb sab hauv tawg. Qhov no tshwm sim ntawm qhov kub siab heev lossis thaum lub roj teeb ua haujlwm tsis raug. Txawm tias overcharging, thaum lub roj teeb tau txais tam sim no ntau dua li kev nyab xeeb, tuaj yeem ua rau overheating.
Qhov tseem ceeb, USB cable thiab charger koj siv los them koj lub xov tooj yuav tsum ua raws li kev nyab xeeb ntawm cov dej ntws tam sim no. Txhua yam saum toj no tuaj yeem ua rau koj lub smartphone hlawv mus rau lub nkig. Yog li, nws yog advisable