JPS56168413A - Multisignal amplifier - Google Patents
Multisignal amplifierInfo
- Publication number
- JPS56168413A JPS56168413A JP7145780A JP7145780A JPS56168413A JP S56168413 A JPS56168413 A JP S56168413A JP 7145780 A JP7145780 A JP 7145780A JP 7145780 A JP7145780 A JP 7145780A JP S56168413 A JPS56168413 A JP S56168413A
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- vouta
- transistor
- control
- controlling
- 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
Classifications
-
- 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 of the amplifier
- 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 of the amplifier in emitter-coupled or cascode amplifiers
Landscapes
- Control Of Amplification And Gain Control (AREA)
Abstract
PURPOSE:To realize a simultaneous control for gains of plural differential amplifiers, by connecting the 1st and 2nd bias controlling variable resistors to the base circuit of a transistor of one side of a differential amplifier and to a common base circuit respectively. CONSTITUTION:A variable resistor 6 is controlled to increase the base potential of a transistor TR2, and accordingly the output signal VoutA reduces. While the signal VoutA increases by increasing the base potential of a TR1 by controlling a variable resistor 5. The bases of the TR1 and TR3 are connected to a control circuit comprises a resistance 8, a resistor 5 and a bias capacitor 21. The input signals VinA and VinB are controlled simultaneously for their amplification factors through a control of the resistor 5. Thus signals VoutA and VoutB are obtained at output terminals 19 and 20.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7145780A JPS56168413A (en) | 1980-05-30 | 1980-05-30 | Multisignal amplifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7145780A JPS56168413A (en) | 1980-05-30 | 1980-05-30 | Multisignal amplifier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56168413A true JPS56168413A (en) | 1981-12-24 |
Family
ID=13461116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7145780A Pending JPS56168413A (en) | 1980-05-30 | 1980-05-30 | Multisignal amplifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56168413A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010058247A1 (en) * | 2008-11-24 | 2010-05-27 | Freescale Semiconductor, Inc. | Frequency multiplier circuit |
-
1980
- 1980-05-30 JP JP7145780A patent/JPS56168413A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010058247A1 (en) * | 2008-11-24 | 2010-05-27 | Freescale Semiconductor, Inc. | Frequency multiplier circuit |
US8330506B2 (en) | 2008-11-24 | 2012-12-11 | Freescale Semiconductor, Inc. | Frequency multiplier circuit |
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