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<p><span style="font-size: 14px">  ç£ç 的主è¦åŽŸæ–™ä¸ºé“氧体,é“氧体是一ç§ç«‹æ–¹æ™¶æ ¼ç»“构的亚é“ç£æ€§æ料,颜色为ç°é»‘色。é“氧体ç£ç 在电路ä¸ä½¿ç”¨èƒ½å¤Ÿå¢žåŠ 高频æŸè€—而åˆä¸å¼•å…¥ç›´æµæŸè€—,而且体积å°ã€ä¾¿äºŽå®‰è£…在区间的引线或者导线上,对äº?MHz以上的噪声信å·æŠ‘åˆ¶æ•ˆæžœå¾ˆæ˜Žæ˜¾ï¼Œå› æ¤å¯ç”¨ä½œé«˜é¢‘电路的去耦ã€æ»¤æ³¢ä»¥åŠå¯„生振è¡çš„抑制ç‰ã€‚低阻抗的供电回路ã€è°æŒ¯ç”µè·¯ã€ä¸™ç±»åŠŸçŽ‡æ”¾å¤§å™¨ä»¥åŠå¯æŽ§ç¡…开关电路ç‰ï¼Œä½¿ç”¨é“氧体ç£ç 进行滤波都是å分有效的。é“氧体ç£ç 一般å¯ä»¥åˆ†ä¸ºç”µé˜»æ€§å’Œç”µæ„Ÿæ€§ä¸¤ç±»ï¼Œä½¿ç”¨æ—¶å¯ä»¥æ ¹æ®éœ€è¦é€‰å–。å•ä¸ªç£ç 的阻抗一般为åè‡³å‡ ç™¾æ¬§å§†ï¼Œåº”ç”¨æ—¶å¦‚æžœä¸€ä¸ªè¡°å‡é‡ä¸å¤Ÿæ—¶å¯ä»¥ç”¨å¤šä¸ªç£ç 串è”使用,但是通常三个以上时效果就ä¸ä¼šå†æ˜Žæ˜¾å¢žåŠ 了ã€?/span></p>
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<p><span style="font-size: 14px">ã€€ã€€å› ä¸ºä»»ä½•ä¼ è¾“çº¿éƒ½ä¸å¯é¿å…çš„å˜åœ¨ç€å¼•çº¿ç”µé˜»ã€å¼•çº¿ç”µæ„Ÿå’Œæ‚æ•£ç”µå®¹ï¼Œæ‰€ä»¥ï¼Œä¸€ä¸ªæ ‡å‡†çš„è„‰å†²ä¿¡å·åœ¨ç»è¿‡è¾ƒé•¿ä¼ 输线åŽï¼Œæžæ˜“产生上冲åŠæŒ¯é“ƒçŽ°è±¡ã€‚在脉冲å‰æ²¿ä¸Šå‡æ—¶é—´ç›¸åŒçš„æ¡ä»¶ä¸‹ï¼Œå¼•çº¿ç”µæ„Ÿè¶Šå¤§ï¼Œä¸Šå†²åŠæŒ¯é“ƒçŽ°è±¡å°±è¶Šä¸¥é‡ï¼Œæ‚散电容越大,则使波形的上å‡æ—¶é—´è¶Šé•¿ï¼Œè€Œå¼•çº¿ç”µé˜»çš„å¢žåŠ ï¼Œå°†ä½¿è„‰å†²çš„æŒ¯å¹…å‡å°ã€‚在实际电路ä¸ï¼Œå¯ä»¥åˆ©ç”¨ä¸²è”电阻的方法æ¥å‡å°å’ŒæŠ‘制上冲åŠæŒ¯é“ƒã€?/span></p>
<p> </p>
<p><span style="font-size: 14px">  é“氧体ç£ç 得到了广泛的应用,尤其是应用于å°åˆ¶ç”µè·¯æ¿ã€ç”µæºçº¿å’Œæ•°æ®çº¿ä¸Šã€‚如在å°åˆ¶æ¿çš„电æºçº¿å…¥å£ç«¯åŠ 上é“氧体ç£ç ,就å¯ä»¥æ»¤é™¤é«˜é¢‘干扰。é“氧体ç£çŽ¯æˆ–ç£ç 专用于抑制ä¿?å·çº¿ã€ç”µæºçº¿ä¸Šçš„高频干扰和尖峰干扰,它也具有å¸æ”¶é™ç”µæ”¾ç”µè„‰å†²å¹²æ‰°çš„能力。两个元件的数值大å°ä¸Žç£ç 的长度æˆæ£æ¯”,而且ç£ç 的长度对抑制效果有明显影å“,ç£ç 长度越长抑制效果越好ã€?/span></p>
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