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國創(chuàng)安裝濾波器時應注意事項

  濾波器是一種選頻裝置,可以使信號中特定的頻率成分通過,而極大地衰減其他頻率成分。利用濾波器的這種選頻作用,可以濾除干擾噪聲或進行頻譜分析。濾波器,是對波進行過濾的器件。那么在在安裝濾波器應注意什么呢?看國創(chuàng)分析!

  在安裝濾波器時應遵循以下原則:

  1、接地線越短越好。

  2、在電源入口處就近安裝,最好用濾波器殼體蓋住機箱上的電源線入口孔。

  3、避免濾波器附近有強干擾源。

  4、濾波器殼體與機箱良好搭接。

  5、濾波器輸入輸出線分開,不能并行或交叉。

  如果欲在高頻獲得極佳的濾波性能,那么濾波器很容易由于其PCB走線和/或濾波與未濾波分界面上導線的射頻泄漏而使其性能發(fā)生降級。許多工程技術人員對濾波器周圍的射頻泄漏疑惑不解,濾波和未濾波走線及導線必須盡可能地彼此遠離,而且沒有其他走線或導線穿過附近濾波/未濾波的邊界線,通常,對濾波器未濾干凈的殘余泄漏采用屏蔽技術是非常必要的。

  如果外部電纜濾波后進入具有地平面的PCB板或用作射頻地的一個工業(yè)儀表面板,濾波器應安裝在電纜進出PCB板或儀表面板的位置上,并且要直接連接到射頻地線上。

  如果外部電纜經濾波后進入屏蔽機柜,濾波器應安裝在機柜的壁上,并且要在安裝孔的周圍一周與柜壁進行導電連接。隔離式濾波器是最好的選擇(例如,穿心電容),但一般都比較貴而且難于安裝。

  以上就是國創(chuàng)總結的安裝濾波器應注意點,如果您想要了解更多關于濾波器的相關信息的話,歡迎在線咨詢我們國創(chuàng)客服或是撥打服務熱線029-85251919進行咨詢,我們將竭誠為您提供優(yōu)質的服務!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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