| 摘要 |
本发明揭露了一种网路传输之电磁干扰抑制装置，包含：一第一变压器、一第二变压器、一第一电路端电感元件及一第二电路端电感元件。所述第一变压器包含一第一电路端抽头与一第一缆线端抽头，分别用来经由二第一电路端讯号抽头接收一第一电路讯号，以及经由二第一缆线端讯号抽头接收一第一缆线讯号。所述第二变压器包含一第二电路端抽头与一第二缆线端抽头，分别用来经由二第二电路端讯号抽头接收一第二电路讯号，以及经由二第二缆线端讯号抽头接收一第二缆线讯号。所述第一电路端电感元件耦接于第一电路端抽头与一系统接地端之间，用来抑制该第一电路讯号之共模杂讯。所述第二电路端电感元件耦接于第二电路端抽头与系统接地端之间，用来抑制该第二电路讯号之共模杂讯。上述第一与第二电路端电感元件是相互独立且分开运作。 The present invention discloses an EMI suppression device for network transmission, comprising: a first transformer, a second transformer, a first circuit-end inductance element and a second circuit-end inductance element. Said first transformer includes a first circuit-end central tap to receive a first circuit signal from two first circuit-end signal taps, and a first cable-end central tap to receive a first cable signal from two first cable-end signal taps. Said second transformer includes a second circuit-end central tap to receive a second circuit signal from two second circuit-end signal taps, and a second cable-end central tap to receive a second cable signal from two second cable-end signal taps. Said first circuit-end inductance element is coupled between the first circuit-end central tap and a system ground to reduce the common mode noise of the first circuit signal. Said second circuit-end inductance element is coupled between the second circuit-end central tap and the system ground to reduce the common mode noise of the second circuit signal. Furthermore, the first and second circuit-end inductance elements are independent of each other and work separately. 【代表图】 【本案指定代表图】：图1 【本代表图之符号简单说明】： 100 电磁干扰抑制装置 110 第一变压器 112 第一电路端抽头 114 第一缆线端抽头 116 第一电路端讯号抽头 118 第一缆线端讯号抽头 120 第二变压器 122 第二电路端抽头 124 第二缆线端抽头 126 第二电路端讯号抽头 128 第二缆线端讯号抽头 130 第一电路端电感元件 140 第二电路端电感元件 |
