Invention Application
- Patent Title: Active filter circuit with operational amplifier
- Patent Title (中): 有源滤波电路，带运算放大器
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Application No.: US10751670Application Date: 2004-01-05
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Publication No.: US20050030092A1Publication Date: 2005-02-10
- Inventor: Norbert Greitschus , Stefan Noe
- Applicant: Norbert Greitschus , Stefan Noe
- Main IPC: H03F3/30
- IPC: H03F3/30 ; H03F3/45 ; H03H11/12 ; H03K5/00
Abstract:
An at least second-order active filter circuit includes an operational amplifier (Op) whose frequency response, in conjunction with an RC network (R1, R2, C1, C2), serves to set a predetermined low-pass characteristic. The frequency response of the operational amplifier (Op) forms an integral part of this low-pass characteristic.
Public/Granted literature
- US07123083B2 Active filter circuit with operational amplifier Public/Granted day:2006-10-17
Information query
