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公开(公告)号:US06680645B2
公开(公告)日:2004-01-20
申请号:US09977574
申请日:2001-10-15
申请人: Norbert Greitschus , Stefan Noe
发明人: Norbert Greitschus , Stefan Noe
IPC分类号: H03K500
CPC分类号: H03H11/1278
摘要: 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.
摘要翻译: 至少二阶有源滤波器电路包括运算放大器(Op),其运算放大器(Op)与RC网络(R1,R2,C1,C2)一起用于设定预定的低通特性。 运算放大器(Op)的频率响应构成了该低通特性的组成部分。
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公开(公告)号:US20050030092A1
公开(公告)日:2005-02-10
申请号:US10751670
申请日:2004-01-05
申请人: Norbert Greitschus , Stefan Noe
发明人: Norbert Greitschus , Stefan Noe
CPC分类号: H03F3/3023 , H03F3/45188 , H03F2203/30123 , H03F2203/30138 , H03F2203/45308 , H03F2203/45648 , H03H11/126
摘要: 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.
摘要翻译: 至少二阶有源滤波器电路包括运算放大器(Op),其运算放大器(Op)与RC网络(R1,R2,C1,C2)一起用于设定预定的低通特性。 运算放大器(Op)的频率响应构成了该低通特性的组成部分。
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公开(公告)号:US07123083B2
公开(公告)日:2006-10-17
申请号:US10751670
申请日:2004-01-05
申请人: Norbert Greitschus , Stefan Noe
发明人: Norbert Greitschus , Stefan Noe
IPC分类号: H03K5/00
CPC分类号: H03F3/3023 , H03F3/45188 , H03F2203/30123 , H03F2203/30138 , H03F2203/45308 , H03F2203/45648 , H03H11/126
摘要: 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.
摘要翻译: 至少二阶有源滤波器电路包括运算放大器(Op),其运算放大器(Op),其频率响应与RC网络(R< 1>,< 2>,C< SUB > 1 SUB> C 2 2)用于设定预定的低通特性。 运算放大器(Op)的频率响应构成了该低通特性的组成部分。
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