【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)普遍存在(zai)。

鉛酸蓄電(dian)池充電(dian)器(qi)電(dian)路圖

充電原理分析：

1.維護充電：

當電(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)壓(ya)較(jiao)低時(shi)（可設定(ding)，本電(dian)(dian)(dian)路預設在9V以下），充(chong)(chong)電(dian)(dian)(dian)器工(gong)作在小電(dian)(dian)(dian)流維護(hu)充(chong)(chong)電(dian)(dian)(dian)狀(zhuang)態(tai)下，工(gong)作原(yuan)理(li)為U1C⑨腳(jiao)（同相端(duan)）電(dian)(dian)(dian)位低于⑧腳(jiao)（反相端(duan)），U1C輸出低電(dian)(dian)(dian)位，T4截止。U1D 11腳(jiao)電(dian)(dian)(dian)位約0.18V。此時(shi)充(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流約250mA（恒流電(dian)(dian)(dian)路由R14，U1D，T1B周邊外圍(wei)電(dian)(dian)(dian)路構成，恒流原(yuan)理(li)讀者(zhe)請(qing)自行分析(xi)）。

2.快速充電：

隨著維護充(chong)電(dian)繼(ji)續，電(dian)池電(dian)壓(ya)逐漸升高，當(dang)電(dian)池電(dian)壓(ya)超過9V時，充(chong)電(dian)器轉入大電(dian)流快充(chong)模(mo)式下，U1C⑨腳(jiao)（同相端(duan)）電(dian)位(wei)高于⑧腳(jiao)（反相端(duan)），U1C輸(shu)出高電(dian)位(wei)，T4導通，U1D 11腳(jiao)電(dian)位(wei)約(yue)為0.48V，充(chong)電(dian)器恒定(ding)輸(shu)出約(yue)1A電(dian)流給(gei)電(dian)池充(chong)電(dian)。

3.限壓浮充：

當電(dian)(dian)(dian)(dian)池(chi)接近充(chong)足電(dian)(dian)(dian)(dian)時，充(chong)電(dian)(dian)(dian)(dian)器自動轉入限壓(ya)浮充(chong)狀(zhuang)態下(xia)(限壓(ya)浮充(chong)電(dian)(dian)(dian)(dian)壓(ya)設定(ding)為13.8V，如為6V蓄電(dian)(dian)(dian)(dian)池(chi)，則(ze)浮充(chong)電(dian)(dian)(dian)(dian)壓(ya)應設定(ding)為6.9V)，此時的(de)充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流會由(you)快速充(chong)電(dian)(dian)(dian)(dian)狀(zhuang)態下(xia)逐(zhu)漸下(xia)降，至電(dian)(dian)(dian)(dian)池(chi)完全充(chong)足電(dian)(dian)(dian)(dian)后，充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流僅為10～30mA，用以補(bu)充(chong)電(dian)(dian)(dian)(dian)池(chi)因自放電(dian)(dian)(dian)(dian)而損失(shi)的(de)電(dian)(dian)(dian)(dian)量。

4.保護及充電指示電路：

本電(dian)路設有反極性保(bao)護電(dian)路，由D4，U1C，U1D，T1及外(wai)圍元(yuan)件構成，當電(dian)池反接時(shi)，充(chong)電(dian)器限制輸(shu)出電(dian)流不致發生事(shi)故(gu)。充(chong)電(dian)指示(shi)由U1A，D7及外(wai)圍元(yuan)件構成，充(chong)電(dian)時(shi)，D7點亮，充(chong)電(dian)器進(jin)入浮充(chong)狀態后，D7熄滅，表示(shi)充(chong)電(dian)結束(shu)。

5.本電(dian)路(lu)略為修改電(dian)路(lu)參(can)數即可(ke)任意調整(zheng)充電(dian)電(dian)流，浮充電(dian)壓以滿足不同規格電(dian)池的需要。

6.物料清單如下

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

*表示可(ke)根據需要調整的元件。

7.實(shi)測充電器的充電曲線如下(xia)圖。

鉛酸蓄電池充電器參數解讀>>