JPS61146023U - - Google Patents
Info
- Publication number
- JPS61146023U JPS61146023U JP3055285U JP3055285U JPS61146023U JP S61146023 U JPS61146023 U JP S61146023U JP 3055285 U JP3055285 U JP 3055285U JP 3055285 U JP3055285 U JP 3055285U JP S61146023 U JPS61146023 U JP S61146023U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- resistor
- inverting input
- input terminal
- negative
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Networks Using Active Elements (AREA)
Description
第１図はこの考案の一例の接続図、第２図〜第
５図はその説明のための図である。
Ａ１はオプアンプである。
FIG. 1 is a connection diagram of an example of this invention, and FIGS. 2 to 5 are diagrams for explaining the same. A1 is an operational amplifier.
Claims (1)
続されて上記アンプに正帰還を行う第１の抵抗器
と、 上記アンプの反転入力端と出力端との間に接続
されて上記アンプに負帰還を行う第２の抵抗器と
、上記第１の抵抗器に並列接続されたコンデンサ
とを有し、 これら第１の抵抗器及びコンデンサの時定数が
、上記第２の抵抗器による負帰還時の上記アンプ
の閉ループのカツトオフ周波数に対応した値とさ
れ、 上記アンプの非反転入力端に負性抵抗が得られ
るようにされた負性インピーダンス変換回路。[Claims for Utility Model Registration] An amplifier; a first resistor connected between a non-inverting input terminal and an output terminal of the amplifier to provide positive feedback to the amplifier; and an inverting input terminal and an output terminal of the amplifier. a second resistor connected between the terminal and the amplifier to provide negative feedback to the amplifier; and a capacitor connected in parallel to the first resistor, and a time constant of the first resistor and the capacitor. is set to a value corresponding to the cut-off frequency of the closed loop of the amplifier when negative feedback is provided by the second resistor, and a negative impedance conversion circuit is configured to obtain a negative resistance at the non-inverting input terminal of the amplifier. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3055285U JPH0540587Y2 (en) | 1985-03-04 | 1985-03-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3055285U JPH0540587Y2 (en) | 1985-03-04 | 1985-03-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61146023U true JPS61146023U (en) | 1986-09-09 |
| JPH0540587Y2 JPH0540587Y2 (en) | 1993-10-14 |
Family
ID=30530350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3055285U Expired - Lifetime JPH0540587Y2 (en) | 1985-03-04 | 1985-03-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0540587Y2 (en) |
-
1985
- 1985-03-04 JP JP3055285U patent/JPH0540587Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0540587Y2 (en) | 1993-10-14 |
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