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肖特基整流二極管的作用及其接法

  肖特基二極管它屬一種低功耗、超高速半導體器件。肖特基整流二極管利用單向導電性,可以把方向交替變化的交流電變換成單一方向的脈沖直流電。


肖特基勢壘二極管

  
  在電路中,電流只能從肖特基二極管的正極流入,負極流出。P區(qū)的載流子是空穴,N區(qū)的載流子是電子,在P區(qū)和N區(qū)間形成一定的位壘。外加電壓使P區(qū)相對N區(qū)為正的電壓時,位壘降低,位壘兩側附近產生儲存載流子,能通過大電流,具有低的電壓降(典型值為0.7V),稱為正向導通狀態(tài)。若加相反的電壓,使位壘增加,可承受高的反向電壓,流過很小的反向電流稱為反向阻斷狀態(tài)。
  
  肖特基二極管主要用于各種低頻半波整流電路,全波整流。整流橋就是將整流管封在一個殼內了。分全橋和半橋。全橋是將連接好的橋式整流電路的四個肖特基二極管封在一起。半橋是將四個肖特基二極管橋式整流的一半封在一起,用兩個半橋可組成一個橋式整流電路,一個半橋也可以組成變壓器帶中心抽頭的全波整流電路;在整流橋的每個工作周期內,同一時間只有兩個肖特基二極管進行工作,通過肖特基二極管的單向導通功能,把交流電轉換成單向的直流脈動電壓。
  
  如果你們還有問題請咨詢029-85251919。國創(chuàng)是一家專業(yè)從事半導體元器件、電源產品研發(fā)與生產的高新技術企業(yè),目前企業(yè)主營產品有半導體器件、一體化電源、模塊電源等,并且提供專業(yè)的定制及配套服務!產品廣泛應用于航天、航空、兵器、雷達、通信電臺、船舶、電子裝備等領域,專業(yè)的技術團隊,便捷的一站式配套服務,與您共筑新藍圖。
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