2019-3-26 使用大功率充電機應注意以下事項
1、大功率充電(dian)機(ji)的(de)使用環(huan)境應(ying)注意通風良(liang)好,利于(yu)散熱(re)。并(bing)保持環(huan)境的(de)清潔。 2、大功率充電(dian)機(ji)輸出插座應(ying)明確標識,勿使加入無關(guan)負載或短路。 3、切勿帶感性負載,如點鈔(chao)機(ji)、日光燈(deng)、空調,以(yi)免造成損壞。...
2019-3-26 充電機使用過程中的注意事項
充電(dian)(dian)機在使用(yong)過程中應注意以下幾點: 1.長期在市電(dian)(dian)狀(zhuang)態下穩(wen)定運行,則電(dian)(dian)池(chi)組需每3~6個月帶載充、放電(dian)(dian)一次。 2.不要(yao)過載運行。...
2019-3-25 蓄電池充電機反饋回路開路
如果(guo)蓄電(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)機變壓(ya)(ya)器(qi)次級(ji)的電(dian)(dian)(dian)(dian)壓(ya)(ya)反饋回路(lu)開(kai)路(lu),即分壓(ya)(ya)電(dian)(dian)(dian)(dian)阻開(kai)路(lu),反饋電(dian)(dian)(dian)(dian)壓(ya)(ya)不能(neng)輸(shu)入PWM脈(mo)(mo)寬調制芯片輸(shu)入腳,或者初級(ji)線(xian)圈(quan)電(dian)(dian)(dian)(dian)流過(guo)大,脈(mo)(mo)寬調制芯片SG3525過(guo)流保護工作,或者光耦(ou)合器(qi)PC817故障,SG3525的輸(shu)出脈(mo)(mo)沖信號不能(neng)送到專用驅動芯片I...
2019-3-25 造成大功率蓄電池充電機電壓過高現象的原因
造成(cheng)大功率(lv)蓄電(dian)(dian)池(chi)充電(dian)(dian)機電(dian)(dian)壓(ya)過(guo)高(gao)現(xian)象的(de)原因有兩類(lei)。一類(lei)情況是大功率(lv)蓄電(dian)(dian)池(chi)充電(dian)(dian)機中穩壓(ya)部分(fen)的(de)元件質量出現(xian)問題,使(shi)開關管的(de)導通(tong)時間變(bian)短,儲能減少,電(dian)(dian)源端(duan)能量的(de)補充跟不上負載端(duan)電(dian)(dian)能消耗的(de)需要。檢測的(de)重點(dian)是影響(xiang)開關管導通(tong)時間的(de)電(dian)(dian)路。 ①取樣電(dian)(dian)路。...
2019-3-19 充電機快速充電原理
蓄電(dian)(dian)池(chi)(chi)充(chong)電(dian)(dian)機的(de)種類(lei)很多,目前應(ying)用最(zui)廣的(de)主要是(shi)密封鉛酸蓄電(dian)(dian)池(chi)(chi)和鎳鎘電(dian)(dian)池(chi)(chi)。這2種蓄電(dian)(dian)池(chi)(chi)的(de)充(chong)放電(dian)(dian)原(yuan)理都(dou)是(shi)一樣的(de),即都(dou)是(shi)通過化學反應(ying)產生正負離子形成電(dian)(dian)流(liu)。 蓄電(dian)(dian)池(chi)(chi)充(chong)電(dian)(dian)機的(de)電(dian)(dian)池(chi)(chi)在充(chong)放電(dian)(dian)的(de)過程中會產生氧...
2019-3-19 充電器總體硬件設計
由于充(chong)(chong)電(dian)對象是鉛酸蓄電(dian)池,設計中采用(yong)電(dian)流、電(dian)壓負反饋的方法來(lai)達(da)到恒(heng)流、恒(heng)壓充(chong)(chong)電(dian)的目的,并對充(chong)(chong)電(dian)過程(cheng)各種工作(zuo)參量進行實時(shi)監測及智能多段式充(chong)(chong)電(dian)策略的精確控(kong)制(zhi),應用(yong)了LPC933單片機(ji)及相應的控(kong)制(zhi)電(dian)路。充(chong)(chong)電(dian)器(qi)硬件原理圖(tu)如圖(tu)1所示。 充(chong)(chong)電(dian)器(qi)電(dian)路主...