JPS5828425U - switch capacitor filter - Google Patents

switch capacitor filter

Info

Publication number
JPS5828425U
JPS5828425U JP12188581U JP12188581U JPS5828425U JP S5828425 U JPS5828425 U JP S5828425U JP 12188581 U JP12188581 U JP 12188581U JP 12188581 U JP12188581 U JP 12188581U JP S5828425 U JPS5828425 U JP S5828425U
Authority
JP
Japan
Prior art keywords
operational amplifier
negative input
switched capacitor
output terminal
coupled
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12188581U
Other languages
Japanese (ja)
Inventor
天田　栄一
Original Assignee
株式会社日立製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP12188581U priority Critical patent/JPS5828425U/en
Publication of JPS5828425U publication Critical patent/JPS5828425U/en
Pending legal-status Critical Current

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  • Filters That Use Time-Delay Elements (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案によるスイッチキャパシタの一実施例の
回路図、第２図、第３図はそれぞれ正転、□反転スイッ
チキャパシタを説明する図である。 １［）１，１０２・・・演算増幅器、１ｏ；ａ、ｉｏ５
゜１０６．１０８・・・反転スイッチキャパシタ、１０
４．１０７・・・正転スイッチキャパシタ、１０９．１
１０・・・キャパシタ。FIG. 1 is a circuit diagram of an embodiment of a switched capacitor according to the present invention, and FIGS. 2 and 3 are diagrams illustrating a normal rotation and a reverse rotation switching capacitor, respectively. 1[)1,102... operational amplifier, 1o;a, io5
゜106.108... Inverting switch capacitor, 10
4.107...Normal rotation switch capacitor, 109.1
10... Capacitor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 第１及び第２の演算増幅器と、フィルタの入力と上記第
１の演算増幅器の負入力端子を結合する反転形スイッチ
ドキャパシタと、上記フィルタの入力と上記第２の演算
増幅器の負入力端子を結合する並列に結合された正転及
び反転形スイッチドキャパシタと上記第１の演算増幅器
の出力端子と上記第２の演算増幅器の負入力端子を結合
する並列に結合された正転及び反転形スイッチドキャパ
シタ、上記第１の演算増幅器の負入力端子と上記第２の
演算増幅器の出力端子間に結合された反転形スイッチド
キャパシタ、及び上記第１及び第２の演算増幅器のそれ
ぞれの負入力端子と出力端子間に結合されたキャパシタ
とを具備シてなルスイッチドキャパシタフィルタ。first and second operational amplifiers; an inverting switched capacitor that connects the input of the filter to the negative input terminal of the first operational amplifier; and an inverting switched capacitor that connects the input of the filter to the negative input terminal of the second operational amplifier; a parallel-coupled normal-rotation and inversion-type switched capacitor, and a parallel-couple-coupled normal-rotation and inversion-type switch that connects the output terminal of the first operational amplifier and the negative input terminal of the second operational amplifier; an inverting switched capacitor coupled between a negative input terminal of the first operational amplifier and an output terminal of the second operational amplifier, and negative input terminals of each of the first and second operational amplifiers. and a capacitor coupled between the output terminal and the output terminal.
JP12188581U 1981-08-19 1981-08-19 switch capacitor filter Pending JPS5828425U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12188581U JPS5828425U (en) 1981-08-19 1981-08-19 switch capacitor filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12188581U JPS5828425U (en) 1981-08-19 1981-08-19 switch capacitor filter

Publications (1)

Publication Number Publication Date
JPS5828425U true JPS5828425U (en) 1983-02-24

Family

ID=29915823

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12188581U Pending JPS5828425U (en) 1981-08-19 1981-08-19 switch capacitor filter

Country Status (1)

Country Link
JP (1) JPS5828425U (en)

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