C832-001-T C832-001-T
C832-001-T C832-001-T
電路的工作過程:
a> 開關S開通后,變壓器繞組N1兩端的電壓為上正下負,與其耦合的N2繞組兩端的電壓也是上正下負.因此VD1處于通態(tài),VD2為斷態(tài),電感L的電流逐漸增長;
b> S關斷后,電感L通過VD2續(xù)流,VD1關斷.S關斷后變壓器的激磁電流經(jīng)N3繞組和VD3流回電源,所以S關斷后承受電壓.
c> 變壓器的磁心復位:開關S開通后,變壓器的激磁電流由零開始,隨著時間的增加而線性的增長,直到S關斷.為防止變壓器的激磁電感飽和,必須設法使激磁電流在S關斷后到下一次再開通的一段時間內降回零,這一過程稱為變壓器的磁心復位.
正激電路的理想化波形:
“*夸咱做的產(chǎn)品!”
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★主食:AB,施耐德和GE 發(fā)那科
★四菜一湯:AB 1785、1756、1747、1784,施耐德140系列,發(fā)那科A06B系列,西門子6ES,505系列熱賣!
★餐后水果:泰尼現(xiàn)貨
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