JPS6195111U - - Google Patents
Info
- Publication number
- JPS6195111U JPS6195111U JP18005884U JP18005884U JPS6195111U JP S6195111 U JPS6195111 U JP S6195111U JP 18005884 U JP18005884 U JP 18005884U JP 18005884 U JP18005884 U JP 18005884U JP S6195111 U JPS6195111 U JP S6195111U
- Authority
- JP
- Japan
- Prior art keywords
- feedback
- circuit
- contact
- amplifier
- series circuit
- 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
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Control Of Amplification And Gain Control (AREA)
Description
第１図はこの考案の特徴を最もよく表わす主要
図、第２図はこの考案の実施例を示す回路図、第
３図は一般的な負帰還増幅器を示す回路図、第４
図は利得切り換え回路付負帰還増幅器の従来例を
示す回路図である。 符号説明、１……演算増幅器、２，５，２１，
２２……抵抗器、３，３１……スイツチ、４，４
１，４２，４３…ダイオード。
図、第２図はこの考案の実施例を示す回路図、第
３図は一般的な負帰還増幅器を示す回路図、第４
図は利得切り換え回路付負帰還増幅器の従来例を
示す回路図である。 符号説明、１……演算増幅器、２，５，２１，
２２……抵抗器、３，３１……スイツチ、４，４
１，４２，４３…ダイオード。
Claims (1)
- 演算増幅器の帰還回路に帰還素子を挿入してな
る負帰還増幅器において、該帰還素子に対して他
の帰還素子とダイオードと切換スイツチの接点と
の直列回路を少なくとも１回路並設し、常時は該
接点を介して直列回路を接地し、利得を切り換え
るときは該接点を介して直列回路を帰還回路に挿
入することを特徴とする負帰還増幅器の利得切換
回路。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984180058U JPH0314819Y2 (ja) | 1984-11-29 | 1984-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984180058U JPH0314819Y2 (ja) | 1984-11-29 | 1984-11-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6195111U true JPS6195111U (ja) | 1986-06-19 |
| JPH0314819Y2 JPH0314819Y2 (ja) | 1991-04-02 |
Family
ID=30737617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984180058U Expired JPH0314819Y2 (ja) | 1984-11-29 | 1984-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0314819Y2 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61289712A (ja) * | 1985-06-18 | 1986-12-19 | Fujitsu Ltd | 利得制御回路 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5743374U (ja) * | 1980-08-22 | 1982-03-09 |
-
1984
- 1984-11-29 JP JP1984180058U patent/JPH0314819Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5743374U (ja) * | 1980-08-22 | 1982-03-09 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61289712A (ja) * | 1985-06-18 | 1986-12-19 | Fujitsu Ltd | 利得制御回路 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0314819Y2 (ja) | 1991-04-02 |