CN205829580U - A kind of pulse signal amplification circuit - Google Patents
A kind of pulse signal amplification circuit Download PDFInfo
- Publication number
- CN205829580U CN205829580U CN201620630663.6U CN201620630663U CN205829580U CN 205829580 U CN205829580 U CN 205829580U CN 201620630663 U CN201620630663 U CN 201620630663U CN 205829580 U CN205829580 U CN 205829580U
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- resistance
- audion
- electric capacity
- diode
- pulse signal
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Abstract
The utility model discloses a kind of pulse signal amplification circuit, including resistance R1, electric capacity C1, diode D1, audion Q1, audion Q2 and electric capacity C2, described electric capacity C1 one end connects input Vi, diode D2 positive pole and resistance R3 respectively, the electric capacity C1 other end connects resistance R6 and resistance R1 respectively, the resistance R1 other end connects diode D1 negative pole, diode D1 positive pole connects resistance R5 and audion Q1 base stage respectively, and audion Q1 colelctor electrode connects the resistance R5 other end, audion Q2 colelctor electrode, resistance R4 and output end vo respectively.This utility model pulse signal amplification circuit uses two audions to be controlled, and only a single supply need to be used to power, it is not necessary to negative supply, has saved electric energy, and the gain amplifier of circuit is high.
Description
Technical field
This utility model relates to a kind of amplifying circuit, specifically a kind of pulse signal amplification circuit.
Background technology
Differential amplifier can not only amplify AC signal effectively, and can effectively reduce due to power-supply fluctuation and crystal
The null offset that pipe varies with temperature and causes, thus obtain be widely applied, the most substantial amounts of be applied to integrated transporting discharging electricity
Road, 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 protects
Hold the stability of triode operation point, but the negative supply needed is the lowest, triode emission pole tension and base stage so could be allowed electric
Pressure will not be the highest, but generally, will obtain the lowest negative supply, needs to lose a lot of electric energy and just can be stablized
Negative supply, additionally there are the problem that gain amplifier is low.
Utility model content
The purpose of this utility model is to provide a kind of pulse signal amplification circuit, to solve to propose in above-mentioned background technology
Problem.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of pulse signal amplification circuit, including resistance R1, electric capacity C1, diode D1, audion Q1, audion Q2 and electricity
Holding C2, described electric capacity C1 one end connects input Vi, diode D2 positive pole and resistance R3 respectively, and the electric capacity C1 other end connects respectively
Resistance R6 and resistance R1, the resistance R1 other end connects diode D1 negative pole, and diode D1 positive pole connects resistance R5 and three poles respectively
Pipe Q1 base stage, audion Q1 colelctor electrode connects the resistance R5 other end, audion Q2 colelctor electrode, resistance R4 and output end vo respectively,
Audion Q2 base stage connecting triode Q1 emitter stage, audion Q2 emitter stage connects the resistance R6 other end respectively, diode D2 bears
Pole and electric capacity C2 ground connection, the electric capacity C2 other end connects the resistance R4 other end, the resistance R3 other end and power supply VCC respectively.
As this utility model further scheme: described power supply VCC voltage is 9V.
Compared with prior art, the beneficial effects of the utility model are: this utility model pulse signal amplification circuit uses
Two audions are controlled, and only a single supply need to be used to power, it is not necessary to negative supply, have saved electric energy, and circuit
Gain amplifier is high.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of pulse signal amplification circuit.
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 and completely describe, 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.
Refer to Fig. 1, in this utility model embodiment, a kind of pulse signal amplification circuit, including resistance R1, electric capacity C1,
Diode D1, audion Q1, audion Q2 and electric capacity C2, described electric capacity C1 one end is just connecting input Vi, diode D2 respectively
Pole and resistance R3, the electric capacity C1 other end connects resistance R6 and resistance R1 respectively, and the resistance R1 other end connects diode D1 negative pole, and two
Pole pipe D1 positive pole connects resistance R5 and audion Q1 base stage respectively, audion Q1 colelctor electrode connect respectively the resistance R5 other end, three
Pole pipe Q2 colelctor electrode, resistance R4 and output end vo, audion Q2 base stage connecting triode Q1 emitter stage, audion Q2 emitter stage divides
Not Lian Jie the resistance R6 other end, diode D2 negative pole and electric capacity C2 ground connection, the electric capacity C2 other end connect respectively resistance R4 another
End, the resistance R3 other end and power supply VCC；Described power supply VCC voltage is 9V.
Referring to Fig. 1, pulse signal inputs from input Vi, then send through electric capacity C1, resistance R1 and diode D1 coupling
Amplifying to Q1, Q2, then export from colelctor electrode, R3, D2 form shunt regulating circuit, and it is steady that this utility model uses diode D2 to replace
Pressure pipe carries out voltage stabilizing, and its degree of stability is not the highest, so a bulky capacitor C1 in parallel at diode D2 two ends, improves voltage stabilizing
Can, resistance R4 is the collector load of Darlington transistor, and R5 is biasing resistance, and C2 is decoupling filter capacitor.Q1, Q2 are connected into Da Lin
Pausing after pipe, its input impedance becomes the highest so that the gain amplifier of circuit is high.
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, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize this practicality in other specific forms new
Type.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 wraps
Containing an independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should
Description can also be formed those skilled in the art through appropriately combined as an entirety, the technical scheme in each embodiment
May be appreciated other embodiments.
Claims (2)
1. a pulse signal amplification circuit, including resistance R1, electric capacity C1, diode D1, audion Q1, audion Q2 and electric capacity
C2, it is characterised in that described electric capacity C1 one end connect respectively input Vi, diode D2 positive pole and resistance R3, electric capacity C1 another
End connects resistance R6 and resistance R1 respectively, and the resistance R1 other end connects diode D1 negative pole, and diode D1 positive pole connects electricity respectively
Resistance R5 and audion Q1 base stage, audion Q1 colelctor electrode connect respectively the resistance R5 other end, audion Q2 colelctor electrode, resistance R4 and
Output end vo, audion Q2 base stage connecting triode Q1 emitter stage, audion Q2 emitter stage connect respectively the resistance R6 other end, two
Pole pipe D2 negative pole and electric capacity C2 ground connection, the electric capacity C2 other end connects the resistance R4 other end, the resistance R3 other end and power supply respectively
VCC。
Pulse signal amplification circuit the most according to claim 1, it is characterised in that described power supply VCC voltage is 9V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620630663.6U CN205829580U (en) | 2016-06-24 | 2016-06-24 | A kind of pulse signal amplification circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620630663.6U CN205829580U (en) | 2016-06-24 | 2016-06-24 | A kind of pulse signal amplification circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205829580U true CN205829580U (en) | 2016-12-21 |
Family
ID=58146690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620630663.6U Expired - Fee Related CN205829580U (en) | 2016-06-24 | 2016-06-24 | A kind of pulse signal amplification circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205829580U (en) |
-
2016
- 2016-06-24 CN CN201620630663.6U patent/CN205829580U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20170624 |