茄子视频APP官网

施能百科

恒流限壓大功率蓄電池充電機方案

2019/4/3 9:04:57??????點擊:
恒流(liu)(liu)限壓大功率蓄電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機可(ke)以對(dui)48伏以下的(de)(de)(de)(de)蓄電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池進行快(kuai)(kuai)(kuai)速(su)(su)全自動(dong)(dong)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian),充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)功率最大可(ke)以達到(dao)600瓦。STK702-015是一(yi)片功能強大的(de)(de)(de)(de)大規(gui)模厚膜開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu),內含輔助(zhu)(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)、PWM控制、輸(shu)出驅動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)、功率場效應(ying)管輸(shu)出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)等。它和簡單而且專用的(de)(de)(de)(de)外(wai)圍(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)一(yi)起組成(cheng)性能可(ke)靠的(de)(de)(de)(de)開(kai)關(guan)穩壓電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)。交流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)通(tong)過電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)濾(lv)波(bo)(bo)器后分成(cheng)兩(liang)路(lu):一(yi)路(lu)經(jing)整流(liu)(liu)濾(lv)波(bo)(bo)后供給PWM脈(mo)寬控制驅動(dong)(dong)模塊STK702-015的(de)(de)(de)(de)31、32腳,內部PWM開(kai)始工(gong)作(zuo),產(chan)生(sheng)70KHZ的(de)(de)(de)(de)開(kai)關(guan)信號并驅動(dong)(dong)功率場效應(ying)管作(zuo)強勁(jing)的(de)(de)(de)(de)D類放大后由(you)(you)25、26腳輸(shu)出,經(jing)過特殊的(de)(de)(de)(de)LC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)推動(dong)(dong)高(gao)(gao)頻(pin)變(bian)壓器工(gong)作(zuo),經(jing)次級降壓后由(you)(you)快(kuai)(kuai)(kuai)恢(hui)復二極管MOR3040PT半(ban)波(bo)(bo)整流(liu)(liu)后輸(shu)出,這(zhe)里沒有濾(lv)波(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容,這(zhe)和普通(tong)的(de)(de)(de)(de)開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)有些區(qu)別,理(li)論和實踐(jian)告訴我們:脈(mo)動(dong)(dong)直(zhi)流(liu)(liu)比平滑的(de)(de)(de)(de)直(zhi)流(liu)(liu)對(dui)蓄電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池的(de)(de)(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)效果更(geng)好,而本機的(de)(de)(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)脈(mo)沖(chong)頻(pin)率高(gao)(gao)達70KHZ,所以充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)效果更(geng)好,充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)速(su)(su)度更(geng)快(kuai)(kuai)(kuai)。300伏直(zhi)流(liu)(liu)另(ling)一(yi)路(lu)向輔助(zhu)(zhu)開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)供電(dian)(dian)(dian)(dian)(dian)(dian)(dian),輔助(zhu)(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)輸(shu)出的(de)(de)(de)(de)直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓通(tong)過一(yi)個開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)后給PWM脈(mo)寬控制驅動(dong)(dong)模塊提(ti)供直(zhi)流(liu)(liu)工(gong)作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓。
當開始充電時,蓄電池的電壓較低,與充電機的壓差較大,初始充電電流很大,如果不加以限制,可能會損壞蓄電池和充電機,所以本機中由LM358的一個運放和電流取樣電阻組成一個自動限流電路,當充電電流超過設定的值時(例如10安培)電流取樣電阻上的壓降使LM358的一個運放輸出低電平,控制PWM脈寬控制驅動模塊STK702-015輸出的脈沖寬度變窄,從而輸出電壓降低,充電電流減小。當蓄電池充滿后(一般充滿后的蓄電池電壓為標稱電壓的1.3倍)LM358的另一個運放組成的電壓比較器輸出低電平,這時綠色發光二極管點亮,同時切斷PWM脈寬控制驅動模塊的直流工作電壓。表示充電完成,此時的充電機只有輔助電源供電,功耗很小。上(shang)海施(shi)能電器(qi)設備有限(xian)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。
公司概況 - 公司產品 - 熱點新聞
lutube-lutube下载-lutube下载地址-lutube最新地址 lutube-lutube下载-lutube下载地址-lutube最新地址 lutube-lutube下载-lutube下载地址-lutube最新地址