【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(fei)的情況普遍存在。

鉛酸蓄電(dian)(dian)池(chi)充電(dian)(dian)器電(dian)(dian)路圖

充電原理分析：

1.維護充電：

當(dang)電(dian)(dian)池電(dian)(dian)壓較低(di)時(shi)（可(ke)設定，本電(dian)(dian)路預設在9V以下），充電(dian)(dian)器(qi)工(gong)作(zuo)在小電(dian)(dian)流維護充電(dian)(dian)狀態下，工(gong)作(zuo)原理為U1C⑨腳(jiao)（同(tong)相(xiang)端）電(dian)(dian)位低(di)于(yu)⑧腳(jiao)（反相(xiang)端），U1C輸出低(di)電(dian)(dian)位，T4截止。U1D 11腳(jiao)電(dian)(dian)位約0.18V。此時(shi)充電(dian)(dian)電(dian)(dian)流約250mA（恒流電(dian)(dian)路由R14，U1D，T1B周邊外圍電(dian)(dian)路構成，恒流原理讀(du)者請自行分析）。

2.快速充電：

隨著維護充電(dian)(dian)(dian)(dian)(dian)繼(ji)續，電(dian)(dian)(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)(dian)(dian)壓(ya)逐漸升高，當電(dian)(dian)(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)(dian)(dian)壓(ya)超(chao)過9V時，充電(dian)(dian)(dian)(dian)(dian)器轉入(ru)大電(dian)(dian)(dian)(dian)(dian)流(liu)快充模式下，U1C⑨腳(jiao)（同(tong)相端）電(dian)(dian)(dian)(dian)(dian)位(wei)高于⑧腳(jiao)（反相端），U1C輸出(chu)高電(dian)(dian)(dian)(dian)(dian)位(wei)，T4導通，U1D 11腳(jiao)電(dian)(dian)(dian)(dian)(dian)位(wei)約為0.48V，充電(dian)(dian)(dian)(dian)(dian)器恒定輸出(chu)約1A電(dian)(dian)(dian)(dian)(dian)流(liu)給電(dian)(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)(dian)。

3.限壓浮充：

當電(dian)池接近(jin)充(chong)(chong)足電(dian)時(shi)，充(chong)(chong)電(dian)器自(zi)動轉入限壓浮(fu)充(chong)(chong)狀態(tai)下(xia)(xia)(限壓浮(fu)充(chong)(chong)電(dian)壓設(she)(she)定為(wei)(wei)13.8V，如為(wei)(wei)6V蓄電(dian)池，則浮(fu)充(chong)(chong)電(dian)壓應(ying)設(she)(she)定為(wei)(wei)6.9V)，此時(shi)的(de)充(chong)(chong)電(dian)電(dian)流(liu)會由快速充(chong)(chong)電(dian)狀態(tai)下(xia)(xia)逐(zhu)漸下(xia)(xia)降(jiang)，至電(dian)池完全充(chong)(chong)足電(dian)后，充(chong)(chong)電(dian)電(dian)流(liu)僅為(wei)(wei)10～30mA，用以(yi)補充(chong)(chong)電(dian)池因自(zi)放(fang)電(dian)而損(sun)失的(de)電(dian)量。

4.保護及充電指示電路：

本電(dian)路設有反(fan)極性保護電(dian)路，由(you)(you)D4，U1C，U1D，T1及外(wai)圍(wei)元件構(gou)成(cheng)，當電(dian)池反(fan)接時，充電(dian)器(qi)限(xian)制輸出(chu)電(dian)流不致發生(sheng)事故。充電(dian)指示(shi)由(you)(you)U1A，D7及外(wai)圍(wei)元件構(gou)成(cheng)，充電(dian)時，D7點(dian)亮(liang)，充電(dian)器(qi)進入浮充狀態后，D7熄(xi)滅(mie)，表示(shi)充電(dian)結束(shu)。

5.本電(dian)(dian)路略為修改電(dian)(dian)路參數(shu)即可任意調整(zheng)充(chong)電(dian)(dian)電(dian)(dian)流，浮充(chong)電(dian)(dian)壓以滿足(zu)不同(tong)規格(ge)電(dian)(dian)池的需要。

6.物料清單如下

注：CF=碳膜電(dian)阻；MF=金屬膜電(dian)阻；M.O.F=金屬氧化(hua)膜電(dian)阻

*表示可根據需要調整(zheng)的元件。

7.實(shi)測充(chong)電器的(de)充(chong)電曲線如下圖。

鉛酸蓄電池充電器參數解讀>>