Algorithm na cajin baturi yana fahimtar caji mai sauƙi, caji mai sauri da karkowar caji

Dangane da buƙatun makamashi na aikace-aikacen ƙarshe, fakitin baturi na iya ƙunsar har zuwa guda 4 ko lithium, waɗanda za a iya canza su ta manyan adaftar wutar lantarki: adaftar kai tsaye, tashoshin USB ko caja na mota. Ba tare da la’akari da adadin batura, nau’in kayan aikin baturi ko adaftar wutar lantarki ba, waɗannan fakitin baturi suna da halayen caji iri ɗaya. Don haka cajin algorithm iri ɗaya ne. Madaidaicin cajin algorithm don batirin lithium da baturan polymer lithium polymer ana iya raba su zuwa matakai uku: jinkirin caji, caji mai sauri da tsayin daka.

* Karancin caji na yanzu. Ana amfani dashi don cajin baturi mai zurfi. Lokacin da ƙarfin baturi ya ragu da kusan 2.8V, ana cajin shi da madaidaicin halin yanzu na 0.1C.

* saurin caji. Lokacin da wutar lantarkin baturi ya wuce madaidaicin cajin, ana ƙara cajin halin yanzu don samun saurin caji. Matsakaicin caji mai sauri ya zama ƙasa da 1.0C.

* Wutar lantarki mai aminci. Yayin aiwatar da caji mai sauri, lokacin da ƙarfin baturi ya kai 4.2V, ya fara shiga lokacin daidaita ƙarfin lantarki. A wannan yanayin, ana iya dakatar da caji ta mafi ƙarancin cajin halin yanzu ko mai ƙidayar lokaci ko haɗin duka biyun. Ana iya dakatar da caji lokacin da mafi ƙarancin halin yanzu bai wuce 0.07C ba. Mai ƙidayar ƙidayar lokaci yana jawo ta da saiti.

Cajin baturi masu tsayi yawanci suna da ƙarin fasalulluka na aminci. Misali, idan zafin baturin ya wuce taga da aka bayar, yawanci 0°C zuwa 45°C, za’a dakatar da caji.

Tare da kawar da wasu ƙananan ƙananan na’urori, hanyoyin caji na yanzu na baturan lithium-ion / lithium polymer a kasuwa sun dogara ne akan haɗin halayen caji ko abubuwan waje don caji, ba kawai don mafi kyawun aikin caji ba, amma har ma don caji. aminci.

* Li-ion/polymer cajin baturi misali-dual shigarwar 1.2a lithium cajar baturi LTC4097

Ana iya amfani da LTC4097 azaman adaftar sadarwa ko tushen wutar lantarki don cajin baturin lithium ion/polymer guda ɗaya. Hoto 1 zane ne na tsari na LTC4097 dual-input 1.2a lithium cajar baturi, wanda ke amfani da tsayayyen halin yanzu da ƙarfin ƙarfin lantarki don caji. Lokacin caji daga adaftar sadarwar wutar lantarki, cajin da ake iya aiwatarwa yana zuwa 1.2A, yayin da wutar lantarki ta USB ta kai 1A, kuma tana gano gaban kowace ƙarfin shigarwa. Na’urar kuma tana ba da iyakar kebul na yanzu. Aikace-aikace sun haɗa da pdas, ƴan wasan MP3, kyamarorin dijital, šaukuwa likita da kayan gwaji, da wayoyin hannu masu manyan fuska masu launi. Halayen ayyuka: Babu microcontroller na waje don dakatar da caji, gano aiki da zaɓin ikon shigarwa; shirye-shiryen caji na yanzu shigar da adaftar sadarwa ta hanyar juriya 1.2; na’urar cajin USB na yanzu ta hanyar juriya 1; 100% ko 20% kebul na caji na yanzu saitin, Mai shigar da wutar lantarki yana da fitarwa da ikon NTC (VNTC) fil 120mA ikon tuki, NTC shigarwar thermistor (NTC) fil ana cajin shi a ƙayyadadden zazzabi, daidaiton ƙarfin baturi mai iyo ± 0.6%, Ana iya amfani da LTC4097 azaman adaftar sadarwa ko wutar lantarki ta USB don baturin lithium Cajin ion/polymer guda ɗaya. Cajin yana ɗaukar ingantaccen halin yanzu/amintaccen ƙarfin wutar lantarki. Lokacin yin caji ta hanyar samar da wutar lantarki ta adaftar sadarwa, cajin da ake iya aiwatarwa ya kai 1.2A, kuma wutar lantarki ta USB ta kai 1A. Kuma ko akwai gano ƙarfin wutar lantarki na kowane tashar shigarwa. Na’urar kuma tana ba da iyakar kebul na yanzu. Aikace-aikace sun haɗa da pdas, ƴan wasan MP3, kyamarorin dijital, šaukuwa likita da kayan gwaji, da wayoyin hannu masu manyan fuska masu launi.