Lub roj teeb them algorithm paub txog kev them nyiaj yooj yim, them sai sai thiab them nyiaj ruaj khov

Raws li lub zog xav tau ntawm daim ntawv thov zaum kawg, lub roj teeb pob tuaj yeem muaj txog li 4 daim lossis lithium, uas tuaj yeem hloov kho los ntawm cov khoom siv hluav taws xob tseem ceeb: cov adapters ncaj qha, USB chaw nres nkoj lossis lub tsheb chargers. Txawm hais tias muaj pes tsawg lub roj teeb, hom khoom siv roj teeb lossis lub hwj chim adapter, cov pob roj teeb no muaj cov yam ntxwv them tib yam. Yog li qhov kev them nyiaj algorithm yog tib yam. Qhov zoo tshaj plaws kev them nyiaj algorithm rau lithium roj teeb thiab lithium polymer roj teeb tuaj yeem muab faib ua peb theem: them qeeb, them ceev thiab ruaj khov.

* Tsawg tam sim no them. Siv rau kev sib sib zog nqus tawm roj teeb them. Thaum lub roj teeb qhov hluav taws xob poob li ntawm 2.8V, nws raug them nrog qhov tam sim no ruaj khov ntawm 0.1C.

* them ceev ceev. Thaum lub roj teeb hluav taws xob ntau tshaj qhov pib them nqi, qhov them tam sim no tau nce ntxiv kom ua tiav kev them nyiaj sai. Qhov ceev them tam sim no yuav tsum tsawg dua 1.0C.

* Kev nyab xeeb voltage. Thaum lub sij hawm them ceev ceev, thaum lub roj teeb voltage nce mus txog 4.2V, nws pib nkag mus rau theem voltage stabilization. Hauv qhov no, kev them nyiaj tuaj yeem nres los ntawm qhov tsawg kawg nkaus them tam sim no lossis lub timer lossis ob qho tib si ua ke. Kev them nyiaj tuaj yeem nres thaum qhov tsawg kawg nkaus tam sim no tsawg dua 0.07C. Lub timer yog tshwm sim los ntawm lub sijhawm teem ua ntej.

High-end roj teeb chargers feem ntau muaj kev nyab xeeb ntxiv. Piv txwv li, yog tias lub roj teeb kub siab tshaj lub qhov rais, feem ntau yog 0 ° C txog 45 ° C, kev them nyiaj yuav raug ncua.

Nrog rau kev tshem tawm ntawm qee cov khoom siv qis kawg, cov txheej txheem them nyiaj tam sim no ntawm lithium-ion / lithium polymer roj teeb nyob rau hauv kev ua lag luam yog raws li kev sib koom ua ke ntawm cov yam ntxwv ntawm kev them nyiaj lossis cov khoom siv sab nraud rau kev them nyiaj, tsis yog rau kev them nyiaj zoo dua, tab sis kuj rau kev nyab xeeb.

* Li-ion/polymer roj teeb them piv txwv-dual input 1.2a lithium roj teeb charger LTC4097

LTC4097 tuaj yeem siv los ua kev sib txuas lus adapter lossis USB lub zog los them ib lub roj teeb lithium ion/polymer. Daim duab 1 yog daim duab schematic ntawm LTC4097 dual-input 1.2a lithium roj teeb charger, uas siv lub zog tsis tu ncua thiab voltage stabilization algorithm rau kev them nyiaj. Thaum them nyiaj los ntawm kev sib txuas lus adapter fais fab mov, lub programmable them tam sim no yog mus txog 1.2A, thaum lub USB fais fab mov yog mus txog 1A, thiab nquag kuaj pom qhov muaj ntawm txhua qhov input voltage. Cov cuab yeej tseem muab USB txwv tam sim no. Cov ntawv thov suav nrog pdas, MP3 player, digital koob yees duab, khoom siv kho mob thiab kuaj mob, thiab xov tooj ntawm tes nrog cov ntxaij vab tshaus xim loj. Cov yam ntxwv ntawm kev ua tau zoo: Tsis muaj microcontroller sab nraud kom tsis txhob them nyiaj, kev tshawb nrhiav nquag thiab xaiv lub zog nkag; programmable them tam sim no input kev sib txuas lus adapter los ntawm kev ua haujlwm 1.2; programmable USB them tam sim no los ntawm kev ua haujlwm 1; 100% lossis 20% USB them tam sim no teeb tsa, Cov khoom siv hluav taws xob nkag muaj cov zis thiab NTC bias (VNTC) tus pin 120mA kev tsav tsheb muaj peev xwm, NTC thermistor input (NTC) tus pin raug them ntawm qhov ntsuas kub, roj teeb ntab hluav taws xob raug yog ± 0.6%, LTC4097 tuaj yeem siv los ua kev sib txuas lus adapter lossis USB fais fab mov rau ib lub lithium Charge ion / polymer roj teeb. Kev them nyiaj txais txais kev nyab xeeb tam sim no / kev nyab xeeb voltage algorithm. Thaum them nyiaj los ntawm kev sib txuas lus adapter fais fab mov, qhov programmable them tam sim no txog li 1.2A, thiab USB fais fab mov yog mus txog 1A. Thiab seb puas muaj kev tshawb nrhiav pom ntawm qhov voltage ntawm txhua qhov input davhlau ya nyob twg. Cov cuab yeej tseem muab USB txwv tam sim no. Cov ntawv thov suav nrog pdas, MP3 player, digital koob yees duab, khoom siv kho mob thiab kuaj mob, thiab xov tooj ntawm tes nrog cov ntxaij vab tshaus xim loj.