JPS5116847A - - Google Patents
Info
- Publication number
- JPS5116847A JPS5116847A JP49088082A JP8808274A JPS5116847A JP S5116847 A JPS5116847 A JP S5116847A JP 49088082 A JP49088082 A JP 49088082A JP 8808274 A JP8808274 A JP 8808274A JP S5116847 A JPS5116847 A JP S5116847A
- Authority
- JP
- Japan
- 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
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements
- H03G1/0023—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements in emitter-coupled or cascode amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Control Of Amplification And Gain Control (AREA)
- Amplifiers (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8808274A JPS5513606B2 (en]) | 1974-08-02 | 1974-08-02 | |
| US05/600,431 US4011519A (en) | 1974-08-02 | 1975-07-30 | Transistor amplifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8808274A JPS5513606B2 (en]) | 1974-08-02 | 1974-08-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5116847A true JPS5116847A (en]) | 1976-02-10 |
| JPS5513606B2 JPS5513606B2 (en]) | 1980-04-10 |
Family
ID=13932930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8808274A Expired JPS5513606B2 (en]) | 1974-08-02 | 1974-08-02 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4011519A (en]) |
| JP (1) | JPS5513606B2 (en]) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3109590A1 (de) * | 1981-03-13 | 1982-09-23 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Geregelte differenz-verstaerkerstufe |
| US6211737B1 (en) | 1999-07-16 | 2001-04-03 | Philips Electronics North America Corporation | Variable gain amplifier with improved linearity |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3761741A (en) * | 1972-06-21 | 1973-09-25 | Signetics Corp | Electrically variable impedance utilizing the base emitter junctions of transistors |
| JPS5620724B2 (en]) * | 1972-07-27 | 1981-05-15 |
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1974
- 1974-08-02 JP JP8808274A patent/JPS5513606B2/ja not_active Expired
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1975
- 1975-07-30 US US05/600,431 patent/US4011519A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5513606B2 (en]) | 1980-04-10 |
| US4011519A (en) | 1977-03-08 |