JPS6415418U - - Google Patents
Info
- Publication number
- JPS6415418U JPS6415418U JP11016387U JP11016387U JPS6415418U JP S6415418 U JPS6415418 U JP S6415418U JP 11016387 U JP11016387 U JP 11016387U JP 11016387 U JP11016387 U JP 11016387U JP S6415418 U JPS6415418 U JP S6415418U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier circuit
- stage amplifier
- stage
- circuit
- level detection
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Amplification And Gain Control (AREA)
Description
第１図は本考案に係る増幅回路を示す図、第２
図は動作説明図である。
１は前段増幅回路、２は後段増幅回路、３は可
変抵抗器、７はレベル検出回路、８は利得制御を
する為のフオトカツプラ。
Figure 1 is a diagram showing an amplifier circuit according to the present invention, Figure 2 is a diagram showing an amplifier circuit according to the present invention.
The figure is an explanatory diagram of the operation. 1 is a front-stage amplifier circuit, 2 is a rear-stage amplifier circuit, 3 is a variable resistor, 7 is a level detection circuit, and 8 is a photo coupler for gain control.
Claims (1)
後段増幅回路の出力レベルを検出するレベル検出
回路よりなり、前記レベル検出回路にて検出され
る前記後段増幅回路の出力レベルに応答して、前
記前段及び後段増幅回路の利得を相互に逆方向に
増減させることを特徴とする増幅回路。 It consists of a gain-controllable front-stage and rear-stage amplifier circuit, and a level detection circuit that detects the output level of the rear-stage amplifier circuit, and in response to the output level of the rear-stage amplifier circuit detected by the level detection circuit, the front-stage amplifier circuit An amplifier circuit characterized in that the gains of the amplifier circuit and the latter stage amplifier circuit are increased and decreased in mutually opposite directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11016387U JPS6415418U (en) | 1987-07-17 | 1987-07-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11016387U JPS6415418U (en) | 1987-07-17 | 1987-07-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6415418U true JPS6415418U (en) | 1989-01-26 |
Family
ID=31347068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11016387U Pending JPS6415418U (en) | 1987-07-17 | 1987-07-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6415418U (en) |
-
1987
- 1987-07-17 JP JP11016387U patent/JPS6415418U/ja active Pending
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