Taw qhiantawmCTIA

Lub koom haum Cellular Telecommunications Industry Association (CTIA) muaj ib daim ntawv pov thawj uas npog cov cell, roj teeb, adapters thiab hosts thiab lwm yam khoom siv hauv kev sib txuas lus wireless (xws li xov tooj ntawm tes, laptops). Ntawm lawv, CTIA ntawv pov thawj rau cov hlwb yog tshwj xeeb tshaj yog nruj. Dhau li ntawm qhov kev ntsuam xyuas ntawm kev nyab xeeb kev ua tau zoo, CTIA tseem tsom rau cov qauv tsim ntawm cov hlwb, cov txheej txheem tseem ceeb ntawm cov txheej txheem tsim khoom thiab nws cov kev tswj kom zoo. Txawm hais tias daim ntawv pov thawj CTIA tsis yog qhov yuav tsum tau ua, cov tswv lag luam loj hauv North America xav kom lawv cov khoom lag luam kom dhau CTIA daim ntawv pov thawj, yog li daim ntawv pov thawj CTIA tseem tuaj yeem suav tias yog qhov yuav tsum tau nkag rau North American kev sib txuas lus lag luam.

Kev Sib Tham Tom Qab

CTIA tus qauv ntawv pov thawj yeej ib txwm xa mus rau IEEE 1725 thiab IEEE 1625 luam tawm los ntawm IEEE (Lub Tsev Haujlwm Hluav Taws Xob thiab Hluav Taws Xob Hluav Taws Xob). Yav dhau los, IEEE 1725 siv rau cov roj teeb uas tsis muaj cov qauv tsim; thaum IEEE 1625 siv rau cov roj teeb nrog ob lossis ntau dua kev sib txuas. Raws li CTIA cov ntawv pov thawj roj teeb tau siv IEEE 1725 raws li tus qauv siv, tom qab tshaj tawm cov ntawv tshiab ntawm IEEE 1725-2021 hauv 2021, CTIA kuj tau tsim ib pab pawg ua haujlwm los pib ib txoj haujlwm ntawm kev hloov kho CTIA daim ntawv pov thawj scheme.

Pawg neeg ua haujlwm tau thov kev xav los ntawm cov chaw soj nstuam, cov tuam txhab roj teeb, cov tuam txhab xov tooj ntawm tes, cov tuam txhab tsim khoom, cov chaw tsim khoom adapter, thiab lwm yam. Nyob rau lub Tsib Hlis xyoo no, thawj lub rooj sib tham rau CRD (Certification Requirements Document) tau tuav. Thaum lub sij hawm, ib pawg adapter tshwj xeeb tau teeb tsa los tham txog USB interface thiab lwm yam teeb meem sib cais. Tom qab ntau tshaj li ib nrab xyoo, lub rooj sib tham zaum kawg tau tuav lub hli no. Nws lees paub tias daim ntawv pov thawj tshiab ntawm CTIA IEEE 1725 (CRD) yuav raug muab tawm rau lub Kaum Ob Hlis, nrog rau lub sijhawm hloov pauv ntawm rau lub hlis. Qhov no txhais tau hais tias CTIA daim ntawv pov thawj yuav tsum tau ua los ntawm kev siv cov ntawv tshiab ntawm CRD tom qab Lub Rau Hli 2023. Peb, MCM, uas yog ib tug tswv cuab ntawm CTIA's Test Laboratory (CATL), thiab CTIA's Battery Working Group, tau thov kev kho dua tshiab rau txoj kev sim tshiab thiab koom nrog. thoob plaws hauv CTIA IEEE1725-2021 CRD kev sib tham. Cov hauv qab no yog cov kev hloov kho tseem ceeb:

Kev kho tshiab

1. Cov kev xav tau rau roj teeb / pob subsystem tau ntxiv, cov khoom yuav tsum tau ua raws li tus qauv UL 2054 lossis UL 62133-2 lossis IEC 62133-2 (nrog rau US sib txawv). Nws yog tsim nyog sau cia tias yav tas los tsis tas yuav muab cov ntaub ntawv rau pob.
2. Rau kev sim ntawm tes, IEEE 1725-2021 tshem tawm qhov ntsuas luv luv rau lub xov tooj ntawm tes tom qab 25 lub voj voog kub thiab qis. Txawm hais tias CTIA ib txwm xa mus rau IEEE tus qauv, nws thaum kawg txiav txim siab khaws qhov kev xeem no. Qhov no yog los txiav txim siab tias qhov kev kuaj mob hnyav dua, tab sis rau qee qhov kev laus, cov roj teeb tsis zoo, qhov kev sim no tuaj yeem kuaj xyuas cov khoom siv tam sim ntawd. Nws kuj qhia tau hais tias kev txiav txim siab ntawm CTIA kom nruj tswj kev nyab xeeb ntawm cov hlwb.
3. CRD tshiab ntawm CTIA IEEE 1725 tshem tawm cov khoom ntsuas cuam tshuam ntawm USB Hom B thiab tseem hloov pauv qhov kev txwv ntawm overvoltage rau cov tswv cuab ntawm 9V rau 24V kom ua raws li USB Hom C specification. Qhov no tseem qhia tau tias tom qab lub sijhawm hloov pauv xaus rau xyoo tom ntej, USB Hom B adapters yuav tsis tuaj yeem thov rau CTIA ntawv pov thawj ntxiv lawm. Qhov no kuj ua rau kev lag luam, uas tam sim no feem ntau hloov USB Hom B adapters rau USB Hom C adapters.
4. Daim ntawv thov Scope ntawm 1725 khoom yog nthuav. Nrog rau qhov nce ntawm lub peev xwm ntawm lub xov tooj ntawm tes, lub peev xwm ntawm ib lub xov tooj ntawm tes tsis tuaj yeem ua tau raws li kev siv lub sijhawm ntev ntawm lub xov tooj ntawm tes. Yog li, IEEE 1725 daim ntawv pov thawj ua raws li daim ntawv pov thawj ntawm lub xov tooj ntawm tes roj teeb kuj tseem nthuav dav ntau yam ntawm cov teeb tsa ntawm tes hauv lub roj teeb.

• Ib leeg xwb (1S1P)
• Ntau lub cev sib luag (1S nP)
• 2 series multi-parallel cells (2S nP)

Tag nrho cov saum toj no tuaj yeem raug lees paub raws li CTIA IEEE 1725, thiab lwm yam kev teeb tsa roj teeb yuav tsum ua tau raws li cov cai ntawm CTIA IEEE 1625.

Cov ntsiab lus

Piv nrog rau cov qub version, tus tshiab tsis hloov ntau dhau ntawm cov khoom xeem, tab sis tus tshiab version tso rau pem hauv ntej ib tug xov tooj ntawm cov ntaub ntawv pov thawj tshiab, qhia meej txog cov khoom certification, thiab lwm yam. Thiab lub adapter tshooj tau hloov ntau yam. Lub hom phiaj ntawm daim ntawv pov thawj adapter yog txhawm rau txheeb xyuas cov feem ntau siv interface hom, thiab USB hom C yog ntau dua nyob rau hauv txoj kab nrog cov ntawv thov tseem ceeb. Raws li qhov no, CTIA siv USB Hom C raws li hom adapter nkaus xwb. Tam sim no EU thiab Kaus Lim Qab Teb muaj cov qauv tsim los koom ua ke USB interface, qhov kev txiav txim siab CTIA tau ua kom tso tseg USB Hom B thiab txav mus rau USB Hom C kuj tau tsim cov hauv paus rau kev sib koom ua ke USB interface hauv North America yav tom ntej.

Tsis tas li ntawd, cov lus hais saum toj no thiab kev hloov kho yog cov ntsiab lus pom zoo ntawm lub rooj sib tham, cov kev cai kawg yuav tsum xa mus rau tus qauv tsim. Tam sim no cov qauv tshiab ntawm tus qauv tseem tsis tau raug tso tawm thiab nws xav tias yuav muab tawm rau nruab nrab Lub Kaum Ob Hlis.