Patent ID: 8203400
Filing Date: 2012-06-19
Classification: H02M,Y02B

Abstract:
1. A broadband filter, configured for filtering noise over a first conductive wire, a second conductive wire, and a third conductive wire, comprising: a differential-mode filtering circuit connected to both the first conductive wire and the second conductive wire, comprising: a first inductor connected to the first conductive wire with one end being a first input of the differential-mode filtering circuit and another end being a first output of the differential-mode filtering circuit; a second inductor connected to in the second conductive wire with one end being a second input of the differential-mode filtering circuit and another end being a second output of the differential-mode filtering circuit; a first capacitor connected between the first output and the second output of the differential-mode filtering circuit; and a second capacitor in parallel with the first capacitor; and a common-mode filtering circuit connected to the first conductive wire and the second conductive wire and connected to the first output and the second output of the differential-mode filtering circuit, comprising: a third inductor connected to in the first conductive wire with one end being a first input of the common-mode filtering circuit and connected to the first output of the differential-mode filtering circuit, and another end being a first output of the common-mode filtering circuit; a fourth inductor connected to in the second conductive wire with one end being a second input of the common-mode filtering circuit and connected to the second output of the differential-mode filtering circuit, and another ending being a second output of the common-mode filtering circuit; a third capacitor connected between the first output and the second output of the common-mode filtering circuit; a fourth capacitor in parallel with the third capacitor; a fifth capacitor connected between the first output of the common-mode filtering circuit and the third conductive wire; a sixth capacitor in parallel with the fifth capacitor; a seventh capacitor connected between the second output of the common-mode filtering circuit and the third conductive wire; and an eighth capacitor in parallel with the seventh capacitor.