Title: Wide-frequency-band high-attenuation common-mode conductive electromagnetic interference shunt mixed type wave filter
Application Number: 200610042760 Application Date: 2006.04.30
Publication Number: 1851973 Publication Date: 2006.10.25
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H01P1/20
Applicant(s) Name: Xi'an Jiaotong Univ. Address: 710049
Inventor(s) Name: Chen Wenjie, Yang Xu
Attorney & Agent: li zhengjian
Abstract:
     This invention discloses a broad band high attenuation common mode conductive electromagnetic interference parallel mixed filter including a passive common mode filter inductor LCM, the input end of which is serial to the output of the HF current inductor LCT to make up of an active filter and a passive filter, the passive common mode filter inductor is serial to a noise source device to filter the HF electromagnetic noise effectively and correct the source impedance property of the device, in which, the output of the operational amplifier is parallel to the resistor by two high voltage ceramic condensers to be connected to the input of a small passive common mode inductor and works at the open loop state, the input of which is serial to the network side of the device by a HF current mutual inductor.
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