【鉛酸蓄電池充電器】鉛酸蓄電池充電器電路圖 鉛酸蓄電池充電器原理

因為密封鉛酸蓄電池的諸多優點，因此獲得了廣泛應用。然而密封鉛酸蓄電池的充電技術似乎不被看重，因充電方式不合理而造成電池過早報廢的情況(kuang)普遍存(cun)在。

鉛酸蓄電(dian)池充電(dian)器電(dian)路圖

充電原理分析：

1.維護充電：

當電(dian)(dian)(dian)池電(dian)(dian)(dian)壓較低時（可設定，本(ben)電(dian)(dian)(dian)路(lu)(lu)預設在9V以(yi)下），充電(dian)(dian)(dian)器工(gong)作(zuo)在小電(dian)(dian)(dian)流(liu)(liu)維護充電(dian)(dian)(dian)狀態下，工(gong)作(zuo)原理為U1C⑨腳（同相端）電(dian)(dian)(dian)位低于⑧腳（反相端），U1C輸出低電(dian)(dian)(dian)位，T4截止。U1D 11腳電(dian)(dian)(dian)位約(yue)0.18V。此時充電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(liu)約(yue)250mA（恒(heng)流(liu)(liu)電(dian)(dian)(dian)路(lu)(lu)由(you)R14，U1D，T1B周邊外圍電(dian)(dian)(dian)路(lu)(lu)構成，恒(heng)流(liu)(liu)原理讀者請自行分析）。

2.快速充電：

隨著維護(hu)充(chong)(chong)電(dian)繼(ji)續，電(dian)池(chi)電(dian)壓逐漸升高(gao)，當電(dian)池(chi)電(dian)壓超過9V時，充(chong)(chong)電(dian)器(qi)(qi)轉(zhuan)入大電(dian)流(liu)(liu)快(kuai)充(chong)(chong)模式下，U1C⑨腳（同相端）電(dian)位(wei)高(gao)于⑧腳（反(fan)相端），U1C輸出高(gao)電(dian)位(wei)，T4導(dao)通，U1D 11腳電(dian)位(wei)約(yue)為0.48V，充(chong)(chong)電(dian)器(qi)(qi)恒定輸出約(yue)1A電(dian)流(liu)(liu)給(gei)電(dian)池(chi)充(chong)(chong)電(dian)。

3.限壓浮充：

當電(dian)(dian)(dian)池(chi)接近充(chong)(chong)(chong)(chong)足電(dian)(dian)(dian)時，充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)自動轉(zhuan)入限壓浮(fu)充(chong)(chong)(chong)(chong)狀態下(xia)(限壓浮(fu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)壓設(she)定為(wei)13.8V，如為(wei)6V蓄(xu)電(dian)(dian)(dian)池(chi)，則浮(fu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)壓應設(she)定為(wei)6.9V)，此時的(de)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)會由快(kuai)速充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)狀態下(xia)逐漸下(xia)降，至電(dian)(dian)(dian)池(chi)完全(quan)充(chong)(chong)(chong)(chong)足電(dian)(dian)(dian)后，充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)僅(jin)為(wei)10～30mA，用以補(bu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)池(chi)因自放電(dian)(dian)(dian)而損(sun)失的(de)電(dian)(dian)(dian)量。

4.保護及充電指示電路：

本電(dian)(dian)(dian)路設有反極(ji)性保護(hu)電(dian)(dian)(dian)路，由D4，U1C，U1D，T1及外圍元件構(gou)成(cheng)，當(dang)電(dian)(dian)(dian)池反接(jie)時，充電(dian)(dian)(dian)器限(xian)制輸出電(dian)(dian)(dian)流不致發生(sheng)事故。充電(dian)(dian)(dian)指(zhi)示(shi)由U1A，D7及外圍元件構(gou)成(cheng)，充電(dian)(dian)(dian)時，D7點(dian)亮(liang)，充電(dian)(dian)(dian)器進入(ru)浮(fu)充狀態后，D7熄滅，表示(shi)充電(dian)(dian)(dian)結束。

5.本電(dian)(dian)(dian)路略為(wei)修改電(dian)(dian)(dian)路參數即可任意調整充電(dian)(dian)(dian)電(dian)(dian)(dian)流，浮充電(dian)(dian)(dian)壓以滿足不同規格電(dian)(dian)(dian)池(chi)的需要。

6.物料清單如下

注：CF=碳膜(mo)電(dian)阻(zu)；MF=金屬膜(mo)電(dian)阻(zu)；M.O.F=金屬氧化膜(mo)電(dian)阻(zu)

*表示(shi)可根據(ju)需(xu)要調(diao)整的元件(jian)。

7.實測充(chong)電器的充(chong)電曲線如下圖。

鉛酸蓄電池充電器參數解讀>>