CN205622602U - Amplifier circuit based on triode - Google Patents
Amplifier circuit based on triode Download PDFInfo
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- CN205622602U CN205622602U CN201620393220.XU CN201620393220U CN205622602U CN 205622602 U CN205622602 U CN 205622602U CN 201620393220 U CN201620393220 U CN 201620393220U CN 205622602 U CN205622602 U CN 205622602U
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- 230000005611 electricity Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The utility model discloses an amplifier circuit based on triode, including resistance R1, electric capacity C1, triode VT1, diode D1, resistance R2 and triode VT3, incoming signal vi is connected to electric capacity C1 one end, the electric capacity C1 other end is connecting resistance R1 respectively, ground resistance R2 and triode VT1 base, ground resistance R3 is connected to triode VT1 projecting pole, diode D1 negative pole and triode VT3 base are connected respectively to triode VT1 collecting electrode, electric capacity C3 and resistance R8 are connected respectively to triode VT3 collecting electrode, the electric capacity C3 other end and ground connection are connected to the resistance R8 other end, triode VT3 projecting pole connecting resistance R7, the resistance R7 other end is the connecting resistance R1 other end respectively, resistance R4, diode D1 is anodal, resistance R6 and electric capacity C2. The utility model discloses amplifier circuit based on triode adopts single 5V mains operated, adopts a plurality of triodes cooperation control difference to enlarge, and linear distortion is rateed lowly, and application scope is wide.
Description
Technical field
This utility model relates to a kind of amplifier, a kind of amplifier circuit based on audion.
Background technology
Differential amplifier can not only amplify AC signal effectively, and can effectively reduce due to power-supply fluctuation and transistor with
Variations in temperature and the null offset that causes, thus obtain and be widely applied, the most substantial amounts of integrated operational amplifier circuit that is applied to,
It is often used as the prestage of multistage amplifier.
Existing differential amplifier uses one big common resistance of connection on two transistor emitters mostly, thus keeps three
The stability of pipe operating point, pole, but the negative supply needed is the lowest, so could allow triode emission pole tension and base voltage not
Can be the highest, but generally, the lowest negative supply to be obtained, need to lose a lot of electric energy and just can obtain stable
Negative supply.
Utility model content
The purpose of this utility model is to provide a kind of amplifier circuit based on audion, to solve to carry in above-mentioned background technology
The problem gone out.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of amplifier circuit based on audion, including resistance R1, electric capacity C1, audion VT1, diode D1, electricity
Resistance R2 and audion VT3, described electric capacity C1 one end connect input signal Vi, the electric capacity C1 other end connect respectively resistance R1,
Earth resistance R2 and audion VT1 base stage, audion VT1 emitter stage connects earth resistance R3, audion VT1 colelctor electrode
Connecting diode D1 negative pole and audion VT3 base stage respectively, audion VT3 colelctor electrode connects electric capacity C3 and resistance R8 respectively,
The resistance R8 other end connects the electric capacity C3 other end ground connection, audion VT3 emitter stage connect resistance R7, resistance R7 another
End respectively connect the resistance R1 other end, resistance R4, diode D1 positive pole, resistance R6 and electric capacity C2, resistance R6 another
End connecting triode VT2 emitter stage, audion VT2 base stage connects the resistance R4 other end and resistance R5 respectively, and resistance R5 is another
One end connects power supply VCC and audion VT2 colelctor electrode respectively, and the described electric capacity C2 other end connects output end vo.
As this utility model further scheme: described power supply VCC voltage is 5V.
Compared with prior art, the beneficial effects of the utility model are: this utility model amplifier circuit based on audion is adopted
Powering with single 5V power supply, use multiple audion to coordinate and control to amplify, linear distortion rate is low, applied widely.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of amplifier circuit based on audion.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
Referring to Fig. 1, in this utility model embodiment, a kind of amplifier circuit based on audion, including resistance R1, electricity
Holding C1, audion VT1, diode D1, resistance R2 and audion VT3, described electric capacity C1 one end connects input signal Vi,
The electric capacity C1 other end connects resistance R1, earth resistance R2 and audion VT1 base stage respectively, and audion VT1 emitter stage connects
Earth resistance R3, audion VT1 colelctor electrode connects diode D1 negative pole and audion VT3 base stage, audion VT3 respectively
Colelctor electrode connects electric capacity C3 and resistance R8 respectively, and the resistance R8 other end connects the electric capacity C3 other end ground connection, audion VT3
Emitter stage connect resistance R7, the resistance R7 other end connect respectively the resistance R1 other end, resistance R4, diode D1 positive pole,
Resistance R6 and electric capacity C2, resistance R6 other end connecting triode VT2 emitter stage, audion VT2 base stage connects resistance respectively
The R4 other end and resistance R5, the resistance R5 other end connects power supply VCC and audion VT2 colelctor electrode, described electric capacity C2 respectively
The other end connects output end vo；Described power supply VCC voltage is 5V.
Referring to Fig. 1, circuit 5V single supply is powered, and input signal is coupled to the base stage of VT1, VT1 by electric capacity C1
Undertaking preposition amplification, be operated in Class A state, resistance R1 and R2 is the biasing resistor of VT1, and resistance R1 is again negative simultaneously
Feedback resistance, resistance R3 is series electric circuit negative feedback resistance, is used for increasing input impedance and reducing the linear distortion of VT1,
Resistance R5 is VT1 collector load resistor, is used for the electric current after being amplified by VT1 and is converted into voltage, and diode D1 is used for will
Rear class complementation pipe (VT2 and VT3 composition) is set in pre-conducting district, VT2 and VT3 forms OTL complementary output circuit, electricity
Resistance R6 and R7 is emitter stage series negative feedback resistance, and electric capacity C2 is output capacitance, is used for cutting off direct current and leads to by AC signal
Cross；The effect of electric capacity C3 is the conducting speed utilizing its charging current to improve audion VT3.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes of the present utility model, it is possible to realize this utility model in other specific forms.
Therefore, no matter from the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, this practicality is new
The scope of type is limited by claims rather than described above, it is intended that by the containing of equivalency in claim that fall
All changes in justice and scope are included in this utility model.Should not be considered as any reference in claim limiting
Involved claim.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only comprises
One independent technical scheme, this narrating mode of description is only the most for clarity sake, and those skilled in the art should be by
Description is as an entirety, and the technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can
With other embodiments understood.
Claims (2)
1. an amplifier circuit based on audion, including resistance R1, electric capacity C1, audion VT1, diode D1,
Resistance R2 and audion VT3, it is characterised in that described electric capacity C1 one end connects input signal Vi, the electric capacity C1 other end
Connecting resistance R1, earth resistance R2 and audion VT1 base stage respectively, audion VT1 emitter stage connects earth resistance R3,
Audion VT1 colelctor electrode connects diode D1 negative pole and audion VT3 base stage respectively, and audion VT3 colelctor electrode connects respectively
Meeting electric capacity C3 and resistance R8, the resistance R8 other end connects the electric capacity C3 other end ground connection, and audion VT3 emitter stage connects
Resistance R7, the resistance R7 other end connect respectively the resistance R1 other end, resistance R4, diode D1 positive pole, resistance R6 and
Electric capacity C2, resistance R6 other end connecting triode VT2 emitter stage, audion VT2 base stage connects the resistance R4 other end respectively
With resistance R5, the resistance R5 other end connects power supply VCC and audion VT2 colelctor electrode respectively, and the described electric capacity C2 other end is even
Connect output end vo.
Amplifier circuit based on audion the most according to claim 1, it is characterised in that described power supply VCC voltage
For 5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620393220.XU CN205622602U (en) | 2016-05-04 | 2016-05-04 | Amplifier circuit based on triode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620393220.XU CN205622602U (en) | 2016-05-04 | 2016-05-04 | Amplifier circuit based on triode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205622602U true CN205622602U (en) | 2016-10-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620393220.XU Active CN205622602U (en) | 2016-05-04 | 2016-05-04 | Amplifier circuit based on triode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205622602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508252A (en) * | 2017-02-24 | 2018-09-07 | 长沙英雁电子有限公司 | With detection and drive in the voltage sensor of one |
-
2016
- 2016-05-04 CN CN201620393220.XU patent/CN205622602U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508252A (en) * | 2017-02-24 | 2018-09-07 | 长沙英雁电子有限公司 | With detection and drive in the voltage sensor of one |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Luo Xiaobing Inventor before: Huang Hai |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170628 Address after: Six, 519070 floor, 8 East Street, five Cui Chui street, Zhuhai, Guangdong Patentee after: Zhuhai Jintai Electronic Technology Co., Ltd. Address before: Ruan Shi Zhen Ruan Shi Cun Nan bin Lu 311826 Zhejiang city of Shaoxing province Zhuji City, No. 66 Patentee before: Huang Hai |