Patent ID: 9257955
Filing Date: 2016-02-09
CPC Classification: H03H

Claim Text:
1. A common mode noise reduction circuit, comprising: a first transmission line, including: a second transmission line, including: a first connection line, connected to said first input end and said second input end, and including at least one first two-port element and at least one second two-port element, wherein said first two-port element and said second two-port element are connected in series, and a third inductor is disposed between said first two-port elements and said second two-port elements and connected to a ground end; a second connection line, connected to said first output end and said second output end and including at least one third two-port element and at least one fourth two-port element, wherein said third tow-port elements and said fourth two-port elements are connected in series, and a fourth inductor is disposed between said third two-port elements and said fourth two-port elements and connected to a ground end; and a third connection line, including at least one first resistor and at least one second resistor, wherein said third connection line has one end connected between said first two-port element and said second two-port element and has the other end connected between said third two-port element and said fourth two-port element, and a fifth two-port element is disposed between said first resistor and said second resistor and connected to a ground end; wherein said first two-port element, said second two-port element, said third two-port element, said fourth two-port element, and said fifth two-port element have capacitive characteristics.