大功率充電機電路
2019/3/13 13:03:54??????點擊：
大功率(lv)充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)工作(zuo)原(yuan)理：220V市電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)經(jing)變(bian)壓(ya)(ya)器降壓(ya)(ya)，橋(qiao)堆整流(liu)，C1、C2濾波(bo)后(hou)(hou)(hou)得到35V的(de)(de)(de)(de)脈動直(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，從(cong)IC的(de)(de)(de)(de)第1、2腳(jiao)輸(shu)(shu)(shu)入(ru)，該IC最高(gao)輸(shu)(shu)(shu)人電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)可達40V。輸(shu)(shu)(shu)人的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)經(jing)IC內部的(de)(de)(de)(de)振蕩調制為200kHz左右的(de)(de)(de)(de)開(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，其內部的(de)(de)(de)(de)振蕩電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)和頻(pin)率(lv)由第3腳(jiao)的(de)(de)(de)(de)外(wai)接(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容所(suo)決定。第4腳(jiao)為抑制端(duan)，其閉鎖電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)(de)(de)閾(yu)值為0.7V，輸(shu)(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)經(jing)采樣電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)R2反饋至第4腳(jiao)后(hou)(hou)(hou)與R1比較(jiao)，當(dang)閾(yu)值電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)大于0．7V時，輸(shu)(shu)(shu)出(chu)關斷，起到短路(lu)過電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)保(bao)護作(zuo)用。第6腳(jiao)為輸(shu)(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)調節端(duan)，由電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)器RP及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻R4將輸(shu)(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)分壓(ya)(ya)后(hou)(hou)(hou)得到調節電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)。第7腳(jiao)所(suo)接(jie)R3、C6為環路(lu)調節放(fang)大器的(de)(de)(de)(de)頻(pin)率(lv)補償(chang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)。第8腳(jiao)為輸(shu)(shu)(shu)出(chu)端(duan)，由晶體管V將電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)進行擴大輸(shu)(shu)(shu)出(chu)。VD為反向續(xu)流(liu)二極管。L為市售的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)感器。
大功率充電機元器件選擇：IC選用LA6350專用開關型穩壓集成電路，其外殼需接地并加一定的散熱器。橋堆電流應大于15A。電源變壓器用機床上的控制變壓器改制，容量一般在150W以上，變壓器的一次用φ0.27mm漆包線繞1200匝，二次用φlmm漆包線繞165匝即成。擴流晶體管V應選電流大于15A的大功率硅管，并加足夠的散熱片。VD用2CK10快速關斷型肖特基二極管。電阻R5的功率應在5W以上。集成塊第4腳所接電阻R1、R2精度要高，一定要用碳膜類。C3的漏電流要小。C4選用高頻瓷介電容。上海(hai)施能電器設(she)備有(you)限公司始建于(yu)1984年，上海市高新技術企業，中國工業車輛優秀配套供應商，上海電器行業名優產品，主要生產工頻系列充電機，高頻系列充電機，鋰電池充電機，系列放電機，系列充放電機等電器產品。
大功率充電機元器件選擇：IC選用LA6350專用開關型穩壓集成電路，其外殼需接地并加一定的散熱器。橋堆電流應大于15A。電源變壓器用機床上的控制變壓器改制，容量一般在150W以上，變壓器的一次用φ0.27mm漆包線繞1200匝，二次用φlmm漆包線繞165匝即成。擴流晶體管V應選電流大于15A的大功率硅管，并加足夠的散熱片。VD用2CK10快速關斷型肖特基二極管。電阻R5的功率應在5W以上。集成塊第4腳所接電阻R1、R2精度要高，一定要用碳膜類。C3的漏電流要小。C4選用高頻瓷介電容。上海(hai)施能電器設(she)備有(you)限公司始建于(yu)1984年，上海市高新技術企業，中國工業車輛優秀配套供應商，上海電器行業名優產品，主要生產工頻系列充電機，高頻系列充電機，鋰電池充電機，系列放電機，系列充放電機等電器產品。
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