鋰(li)電(dian)池充電(dian)器原(yuan)理(li)圖是什么呢？在(zai)充電(dian)時(shi)，手機和電(dian)動車(che)使用的充電(dian)器多(duo)為鋰(li)電(dian)池充電(dian)器，那么你(ni)知道鋰(li)電(dian)池充電(dian)器原(yuan)理(li)圖是什么呢？下面世(shi)界工廠網(wang)小編就(jiu)和大家聊聊鋰(li)電(dian)池充電(dian)器原(yuan)理(li)圖，也長長見識(shi)。

　　鋰離(li)子電(dian)池具有單只端電(dian)壓高、比容量(liang)大(da)等優(you)點，但其充(chong)電(dian)必(bi)須(xu)使用(yong)專用(yong)充(chong)電(dian)器(qi)(qi)，因(yin)為(wei)它(ta)(ta)在過(guo)充(chong)電(dian)時極易損(sun)壞(huai)。鋰離(li)子電(dian)池充(chong)電(dian)器(qi)(qi)之(zhi)所以(yi)稱“新創意(yi)”，是因(yin)為(wei)它(ta)(ta)除監視(shi)電(dian)池的充(chong)電(dian)狀態(tai)外，還(huan)能(neng)分階段控制電(dian)池的最大(da)充(chong)電(dian)電(dian)流(liu)。用(yong)本充(chong)電(dian)器(qi)(qi)充(chong)電(dian)開(kai)始時，充(chong)電(dian)電(dian)流(liu)從10mA依次遞增至270mA，當電(dian)量(liang)充(chong)至70%左右時，自動改(gai)用(yong)最大(da)220mA充(chong)電(dian)，然后(hou)依次改(gai)為(wei)最大(da)170mA、120mA和70mA，最后(hou)以(yi)10mA左右的涓(juan)流(liu)結束(shu)充(chong)電(dian)。這種充(chong)電(dian)方法可(ke)以(yi)較大(da)限度地將鋰離(li)子電(dian)池充(chong)足。

　　本(ben)裝(zhuang)置電(dian)(dian)路(lu)(lu)(lu)如附圖所示(shi)。IC1構成(cheng)頻率約(yue)(yue)1Hz１的(de)(de)多諧(xie)振蕩器(qi)，IC2構成(cheng)脈沖頻率６分配器(qi)，IC3構成(cheng)充電(dian)(dian)執行電(dian)(dian)路(lu)(lu)(lu)。通電(dian)(dian)后(hou)IC2復(fu)位(wei)(wei)，Q0輸(shu)出高(gao)(gao)電(dian)(dian)平(ping)，這(zhe)時IC3輸(shu)出電(dian)(dian)壓僅(jin)1.25V，電(dian)(dian)路(lu)(lu)(lu)由+15V經R1給電(dian)(dian)池(chi)提(ti)供(gong)約(yue)(yue)10mA的(de)(de)充電(dian)(dian)電(dian)(dian)流。通電(dian)(dian)后(hou)IC1起振，其(qi)③腳輸(shu)出的(de)(de)脈沖觸發(fa)IC2工作(zuo)，使輸(shu)出端Q1~Q5依次(ci)(ci)出現高(gao)(gao)電(dian)(dian)平(ping)，經不同的(de)(de)分壓電(dian)(dian)阻分壓后(hou)，IC3的(de)(de)輸(shu)出電(dian)(dian)壓按6V、7V、8V、9V、10V依次(ci)(ci)遞增(zeng)，充電(dian)(dian)電(dian)(dian)流也因此(ci)在(zai)70mA至(zhi)270mA之間依次(ci)(ci)遞增(zeng)。當Q6輸(shu)出高(gao)(gao)電(dian)(dian)平(ping)時IC2被復(fu)位(wei)(wei)，此(ci)后(hou)電(dian)(dian)路(lu)(lu)(lu)在(zai)IC1輸(shu)出脈沖的(de)(de)作(zuo)用下重復(fu)上(shang)述過程。

　　鋰電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池的(de)標稱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)為(wei)3.6V，通(tong)常(chang)放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)至3V即(ji)需充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，終(zhong)止充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)最(zui)高為(wei)4.2V。IC4構成電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池端(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)檢測(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，其(qi)門限電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)即(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)終(zhong)止電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)可通(tong)過(guo)(guo)(guo)RP在(zai)4~4.2V范圍內(nei)設定。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池剛充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)的(de)端(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)低(di)于檢測(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)的(de)門限電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)，IC4輸出(chu)低(di)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)平，這(zhe)時(shi)IC2的(de)Q0~Q5均能(neng)依次循環呈(cheng)高電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)平，使(shi)(shi)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)在(zai)10門A～270門A之間階(jie)躍(yue)(yue)(yue)循環變化，即(ji)Q0=1時(shi)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)約(yue)10門A，Q1=1時(shi)階(jie)躍(yue)(yue)(yue)至約(yue)70mA……，Q5=1時(shi)階(jie)躍(yue)(yue)(yue)至最(zui)大，約(yue)270mA。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池充(chong)(chong)(chong)(chong)進一定電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)后(hou)，其(qi)端(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)升高，且大電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)呈(cheng)現(xian)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)比(bi)小電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)更高。因此(ci)，經過(guo)(guo)(guo)一段時(shi)間的(de)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，會出(chu)現(xian)當(dang)Q5=1、充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)約(yue)270mA時(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池端(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)瞬間超(chao)過(guo)(guo)(guo)終(zhong)止充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)設定值(zhi)(zhi)(zhi)的(de)情況(kuang)，致使(shi)(shi)IC4輸出(chu)高電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)平，IC2被強制(zhi)(zhi)復位，最(zui)大充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)自動(dong)改為(wei)220mA（對應于Q4=1）。繼續充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，又(you)會出(chu)現(xian)220mA充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)使(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池端(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)超(chao)過(guo)(guo)(guo)設定值(zhi)(zhi)(zhi)的(de)情況(kuang)，因此(ci)IC2當(dang)其(qi)Q4=1時(shi)即(ji)被強制(zhi)(zhi)復位，最(zui)大充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)又(you)改為(wei)170mA（對應于Q3=1）。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)越充(chong)(chong)(chong)(chong)越足，最(zui)后(hou)，70mA充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)（對應于Q1=1）能(neng)使(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池端(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)超(chao)過(guo)(guo)(guo)設定值(zhi)(zhi)(zhi)，于是IC2的(de)狀態停留在(zai)Q0為(wei)高電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)平上(shang)，+15V通(tong)過(guo)(guo)(guo)R1給(gei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池以10mA的(de)涓流(liu)(liu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)。

　　LED1~LED6用作充電狀態指(zhi)示，同時也是電池容量指(zhi)示。全(quan)亮(liang)表(biao)示電池正在全(quan)流(liu)充電，僅LED1亮(liang)表(biao)示充電過程(cheng)已(yi)結束，處于涓流(liu)充電狀態。