CN106792356A - A kind of audio frequency processing circuit with strong jamming ability - Google Patents
A kind of audio frequency processing circuit with strong jamming ability Download PDFInfo
- Publication number
- CN106792356A CN106792356A CN201611237651.8A CN201611237651A CN106792356A CN 106792356 A CN106792356 A CN 106792356A CN 201611237651 A CN201611237651 A CN 201611237651A CN 106792356 A CN106792356 A CN 106792356A
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- resistance
- electric capacity
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- triode
- processing circuit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a kind of audio frequency processing circuit with strong jamming ability, including electric capacity C1, diode VD1, triode VT1, resistance R1 and triode VT2, described electric capacity C1 one end connects input signal Vi and electric capacity C2 respectively, the electric capacity C1 other ends connect resistance R1 respectively, resistance R2 and diode VD1 positive poles, the resistance R1 other ends connect resistance R4 respectively, resistance R5, resistance R7, triode VT2 emitter stages and power supply VCC, diode VD1 negative poles connect the resistance R4 other ends respectively, resistance R3, the resistance R5 other ends, electric capacity C3 and resistance R6, the resistance R3 other ends connect the electric capacity C2 other ends and diode VD2 negative poles respectively, diode VD2 positive pole connecting triode VT1 base stages.The present invention provides a kind of audio frequency processing circuit with strong jamming ability, by adding one-level anti-jamming circuit before amplitude process circuit, can effectively improve the quality of audio signal, and circuit structure is simple, low cost, strong antijamming capability.
Description
Technical field
The present invention relates to a kind of signal processing circuit, specifically a kind of audio frequency processing circuit with strong jamming ability.
Background technology
Sound is produced by object vibration, and just the object in sounding calls source.Sound is fortune of the pressure wave by air
It is dynamic.Pressure wave vibrates the small bone (phonophore) of inner ear, and these vibrations are converted into small electronics E.E.G, and it is exactly that we feel
The sound for observing.As the pronunciation of microphones capture sound wave or loudspeaker, it is mobile Machinery Ministry to the principle that inner ear is used
The relation divided and barometric wave between.It is natural, sound wave tone it is low, movement is slow and sufficiently large when, we can essentially and " feel
Feel " vibrate body to barometric wave.
With the development of science and technology, as mobile phone, panel computer even some intelligent domestic systems, all played with audio and set
It is standby, and the audio signal for being input into, it is required for be played by after amplitude treatment, otherwise various noises, extreme influence people
Experience.
The content of the invention
It is an object of the invention to provide a kind of audio frequency processing circuit with strong jamming ability, to solve above-mentioned background skill
The problem proposed in art.
To achieve the above object, the present invention provides following technical scheme：
A kind of audio frequency processing circuit with strong jamming ability, including electric capacity C1, diode VD1, triode VT1, resistance
R1 and triode VT2, it is characterised in that described electric capacity C1 one end connects input signal Vi and electric capacity C2 respectively, electric capacity C1 is another
End connects resistance R1, resistance R2 and diode VD1 positive poles respectively, and the resistance R1 other ends connect resistance R4, resistance R5, resistance respectively
R7, triode VT2 emitter stages and power supply VCC, it is another that diode VD1 negative poles connect the resistance R4 other ends, resistance R3, resistance R5 respectively
One end, electric capacity C3 and resistance R6, the resistance R3 other ends connect the electric capacity C2 other ends and diode VD2 negative poles, diode VD2 respectively
Positive pole connecting triode VT1 base stages, the triode VT1 colelctor electrodes connection resistance R6 other ends, triode VT2 colelctor electrodes are connected respectively
Resistance R9 and electric capacity C4, diode VD3 positive pole connect the resistance R9 other ends, the resistance R8 other ends, triode VT1 emitter stages respectively
With the resistance R2 other ends；The power supply VCC voltages are 9V；The diode VD3 is voltage-regulator diode.
As further scheme of the invention：The electric capacity C3 other ends connect respectively the resistance R7 other ends, resistance R8 and
Triode VT2 base stages.
As further scheme of the invention：The electric capacity C4 other ends connect diode VD3 negative poles and output respectively
End Vo.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention provides a kind of audio with strong jamming ability
Process circuit, by adding one-level anti-jamming circuit before amplitude process circuit, can effectively improve the quality of audio signal, circuit knot
Structure is simple, low cost, strong antijamming capability.
Brief description of the drawings
Fig. 1 is the circuit diagram of the audio frequency processing circuit of strong antijamming capability.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is referred to, in the embodiment of the present invention, a kind of audio frequency processing circuit with strong jamming ability, including electric capacity C1,
Diode VD1, triode VT1, resistance R1 and triode VT2, described electric capacity C1 one end connects input signal Vi and electric capacity respectively
C2, electric capacity the C1 other end connect resistance R1, resistance R2 and diode VD1 positive poles respectively, and the resistance R1 other ends connect resistance respectively
R4, resistance R5, resistance R7, triode VT2 emitter stages and power supply VCC, diode VD1 negative poles connect respectively the resistance R4 other ends,
Resistance R3, the resistance R5 other ends, electric capacity C3 and resistance R6, the resistance R3 other ends connect the electric capacity C2 other ends and diode respectively
VD2 negative poles, diode VD2 positive pole connecting triode VT1 base stages, the triode VT1 colelctor electrodes connection resistance R6 other ends, the electricity
Hold the C3 other ends and connect the resistance R7 other ends, resistance R8 and triode VT2 base stages respectively, triode VT2 colelctor electrodes are connected respectively
Resistance R9 and electric capacity C4, electric capacity the C4 other end connect diode VD3 negative poles and output end vo, diode VD3 positive poles difference respectively
The connection resistance R9 other ends, the resistance R8 other ends, triode VT1 emitter stages and the resistance R2 other ends；The power supply VCC voltages are
9V；The diode VD3 is voltage-regulator diode.
Operation principle of the invention is：Fig. 1 is referred to, in normal work, triode VT1 is in saturation conduction state,
VD1 is turned on, and input signal Vi is applied directly in the base stage of VT2 by C1, VD1, when the significantly disturbing pulse of negative polarity goes out
Now, VT1 base stages are coupled to by C2, VD2, end VT1, then the cathode voltage of VD1 is raised to higher than cathode voltage and cuts
Only, prevent disturbing pulse from being added to the base stage of VT2, end VT2, after interference, VT1 recovers conducting, normal work；VT2、
R8, R9 and C3 etc. constitute common amplitude split circuit, and line amplitude treatment is entered to input signal Vi.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (3)
1. a kind of audio frequency processing circuit with strong jamming ability, including electric capacity C1, diode VD1, triode VT1, resistance R1
With triode VT2, it is characterised in that described electric capacity C1 one end connects input signal Vi and electric capacity C2, the electric capacity C1 other ends respectively
Resistance R1, resistance R2 and diode VD1 positive poles are connected respectively, and the resistance R1 other ends connect resistance R4, resistance R5, resistance respectively
R7, triode VT2 emitter stages and power supply VCC, it is another that diode VD1 negative poles connect the resistance R4 other ends, resistance R3, resistance R5 respectively
One end, electric capacity C3 and resistance R6, the resistance R3 other ends connect the electric capacity C2 other ends and diode VD2 negative poles, diode VD2 respectively
Positive pole connecting triode VT1 base stages, the triode VT1 colelctor electrodes connection resistance R6 other ends, triode VT2 colelctor electrodes are connected respectively
Resistance R9 and electric capacity C4, diode VD3 positive pole connect the resistance R9 other ends, the resistance R8 other ends, triode VT1 emitter stages respectively
With the resistance R2 other ends；The power supply VCC voltages are 9V；The diode VD3 is voltage-regulator diode.
2. the audio frequency processing circuit of strong antijamming capability according to claim 1, it is characterised in that the electric capacity C3 is another
End connects the resistance R7 other ends, resistance R8 and triode VT2 base stages respectively.
3. the audio frequency processing circuit of strong antijamming capability according to claim 1, it is characterised in that the electric capacity C4 is another
End connects diode VD3 negative poles and output end vo respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237651.8A CN106792356A (en) | 2016-12-28 | 2016-12-28 | A kind of audio frequency processing circuit with strong jamming ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237651.8A CN106792356A (en) | 2016-12-28 | 2016-12-28 | A kind of audio frequency processing circuit with strong jamming ability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106792356A true CN106792356A (en) | 2017-05-31 |
Family
ID=58925006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611237651.8A Pending CN106792356A (en) | 2016-12-28 | 2016-12-28 | A kind of audio frequency processing circuit with strong jamming ability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106792356A (en) |
-
2016
- 2016-12-28 CN CN201611237651.8A patent/CN106792356A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |