JPS5468140A - Amplifying circuit - Google Patents
Amplifying circuitInfo
- Publication number
- JPS5468140A JPS5468140A JP13548777A JP13548777A JPS5468140A JP S5468140 A JPS5468140 A JP S5468140A JP 13548777 A JP13548777 A JP 13548777A JP 13548777 A JP13548777 A JP 13548777A JP S5468140 A JPS5468140 A JP S5468140A
- Authority
- JP
- Japan
- Prior art keywords
- trt1
- circuit
- voltage
- stable
- constituted
- 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
- 230000003321 amplification Effects 0.000 abstract 4
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 4
- 230000010354 integration Effects 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/34—DC amplifiers in which all stages are DC-coupled
- H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
PURPOSE:To make stable the output DC voltage of the preamplifier and to obtain the circuit easy for circuit integration, by using the differential amplifying circuit and giving the bias voltage stably to the first stage transistor. CONSTITUTION:Transistor TrT1 is connected to the differential amplifying circuit constituted with TrT2 and T3, and the bias voltage is fed with the resistor R3. Further, the input VIN is amplified with TrT1 and is further amplified with the differential amplifier constituted with TrT4 and T5 and output Vout is made via TrT6. In the amplifier thus constituted, the bias voltage of TrT1 is always stable, and the collector voltage is almost equal to the stable voltage E1 independently of the dispersion of amplification factor and it is stable even with the amplification factor varied. Accordingly, the output of TrT1 is connectable for DC coupling to the next stage, then circuit integration is made easy. Further, the differential amplification circuit consisting of TrT4 and T5 can be operated in the condition of linear operation independently of the variation of the amplification factor of TrT1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13548777A JPS5468140A (en) | 1977-11-10 | 1977-11-10 | Amplifying circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13548777A JPS5468140A (en) | 1977-11-10 | 1977-11-10 | Amplifying circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5468140A true JPS5468140A (en) | 1979-06-01 |
JPS5651532B2 JPS5651532B2 (en) | 1981-12-05 |
Family
ID=15152865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13548777A Granted JPS5468140A (en) | 1977-11-10 | 1977-11-10 | Amplifying circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5468140A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57191109U (en) * | 1981-05-28 | 1982-12-03 | ||
JPS59176910A (en) * | 1983-03-26 | 1984-10-06 | Nec Corp | Amplifying circuit |
JPS60167505A (en) * | 1985-01-14 | 1985-08-30 | Toshiba Corp | Temperature compensation type amplifier |
-
1977
- 1977-11-10 JP JP13548777A patent/JPS5468140A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57191109U (en) * | 1981-05-28 | 1982-12-03 | ||
JPH0332094Y2 (en) * | 1981-05-28 | 1991-07-08 | ||
JPS59176910A (en) * | 1983-03-26 | 1984-10-06 | Nec Corp | Amplifying circuit |
JPH0363847B2 (en) * | 1983-03-26 | 1991-10-02 | Nippon Electric Co | |
JPS60167505A (en) * | 1985-01-14 | 1985-08-30 | Toshiba Corp | Temperature compensation type amplifier |
Also Published As
Publication number | Publication date |
---|---|
JPS5651532B2 (en) | 1981-12-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Krabbe | A high-performance monolithic instrumentation amplifier | |
IE811201L (en) | Amplifier | |
JPS5468140A (en) | Amplifying circuit | |
JPS5912603A (en) | Cascode circuit | |
JPS5496951A (en) | Power amplifier | |
GB853672A (en) | Improvements in or relating to transistor amplifiers | |
JPS5546672A (en) | Transistor amplifier circuit | |
JPS5547715A (en) | Gain control amplifier | |
JPS5599812A (en) | Broad band balanced amplifier having gain selection function | |
JPS55115708A (en) | Push pull amplifier | |
JPS5481760A (en) | Audio amplifier | |
JPS548951A (en) | Differential amplifying circuit | |
JPS53105962A (en) | Voltage amplifier | |
JPS55153408A (en) | Amplifier | |
JPS579110A (en) | Current inverting circuit | |
GB843366A (en) | Improvements in and relating to transistor amplifiers | |
JPS5487154A (en) | Impedance conversion circuit | |
GB1111571A (en) | Differential current amplifier | |
GB748204A (en) | Improvements in transistor integrating circuits | |
JPS5738009A (en) | Amplifying circuit | |
JPS561605A (en) | Differential amplifying circuit | |
JPS5585115A (en) | Gain control and amplifying circuit | |
JPS54101245A (en) | Amplifier | |
JPS5253643A (en) | Differential amplifier with source follower | |
ES464694A1 (en) | Amplifiers |