茄子视频APP官网分享

大功率充電機電路

2019/3/13 13:03:54??????點擊：

　　大功(gong)率充電(dian)(dian)(dian)(dian)(dian)機電(dian)(dian)(dian)(dian)(dian)路(lu)工作(zuo)原理：220V市(shi)電(dian)(dian)(dian)(dian)(dian)經變(bian)壓(ya)器降壓(ya)，橋(qiao)堆整流(liu)，C1、C2濾波后(hou)得(de)到(dao)35V的(de)脈動直流(liu)電(dian)(dian)(dian)(dian)(dian)壓(ya)，從IC的(de)第(di)1、2腳(jiao)輸(shu)入(ru)，該IC最高輸(shu)人電(dian)(dian)(dian)(dian)(dian)壓(ya)可達(da)40V。輸(shu)人的(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)經IC內部(bu)的(de)振蕩調制為(wei)200kHz左右的(de)開(kai)關電(dian)(dian)(dian)(dian)(dian)壓(ya)，其內部(bu)的(de)振蕩電(dian)(dian)(dian)(dian)(dian)壓(ya)和頻率由(you)第(di)3腳(jiao)的(de)外接電(dian)(dian)(dian)(dian)(dian)容所(suo)決定(ding)。第(di)4腳(jiao)為(wei)抑(yi)制端，其閉鎖電(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)閾值(zhi)(zhi)為(wei)0.7V，輸(shu)出電(dian)(dian)(dian)(dian)(dian)壓(ya)經采(cai)樣電(dian)(dian)(dian)(dian)(dian)壓(ya)R2反饋至第(di)4腳(jiao)后(hou)與R1比(bi)較，當閾值(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)壓(ya)大于0．7V時，輸(shu)出關斷(duan)，起(qi)到(dao)短路(lu)過電(dian)(dian)(dian)(dian)(dian)流(liu)保護作(zuo)用(yong)。第(di)6腳(jiao)為(wei)輸(shu)出電(dian)(dian)(dian)(dian)(dian)壓(ya)調節端，由(you)電(dian)(dian)(dian)(dian)(dian)位器RP及(ji)電(dian)(dian)(dian)(dian)(dian)阻R4將(jiang)輸(shu)出電(dian)(dian)(dian)(dian)(dian)壓(ya)分壓(ya)后(hou)得(de)到(dao)調節電(dian)(dian)(dian)(dian)(dian)壓(ya)。第(di)7腳(jiao)所(suo)接R3、C6為(wei)環路(lu)調節放(fang)大器的(de)頻率補償電(dian)(dian)(dian)(dian)(dian)路(lu)。第(di)8腳(jiao)為(wei)輸(shu)出端，由(you)晶體管(guan)V將(jiang)電(dian)(dian)(dian)(dian)(dian)流(liu)進(jin)行(xing)擴大輸(shu)出。VD為(wei)反向續(xu)流(liu)二極管(guan)。L為(wei)市(shi)售的(de)電(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。上海施能電器設備有限公司(si)始建(jian)于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。

上一篇：蓄電池充電機使用方法 2019/3/13
下一篇：充電機如何控制過充？ 2019/3/12

茄子视频APP官网

大功率充電機電路

地址

郵箱

電話