CN207968877U - A kind of Portable high fidelity Acoustic power amplification device - Google Patents
A kind of Portable high fidelity Acoustic power amplification device Download PDFInfo
- Publication number
- CN207968877U CN207968877U CN201820378920.0U CN201820378920U CN207968877U CN 207968877 U CN207968877 U CN 207968877U CN 201820378920 U CN201820378920 U CN 201820378920U CN 207968877 U CN207968877 U CN 207968877U
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- Prior art keywords
- voice
- music
- microphone
- amplifier
- signal
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Abstract
The utility model proposes a kind of Portable high fidelity Acoustic power amplification devices, which is characterized in that including：Voice microphone, speech amplifier, electronic sound reverberator, music microphone, mixing preamplifier, tone controller and power amplifier；The voice microphone, the speech amplifier, the electronic sound reverberator, the mixing preamplifier are sequentially connected in series by conducting wire；The music microphone is connect with the mixing preamplifier by conducting wire；The mixing preamplifier, the tone controller, the power amplifier are sequentially connected in series by conducting wire.Compared with prior art, the utility model compact, easy to carry and circuit is simple, performance is stable, of low cost, cost-effective, user individual requirement can be met.
Description
Technical field
The utility model is related to electronic field, in particular to a kind of Portable high fidelity Acoustic power amplification devices.
Background technology
LM386 is a kind of audio integrated amplifier, has that oneself power consumption is low, chain adjustable gain is whole in update, supply voltage model
The power amplifier for enclosing the advantages that big, outward element is few and total harmonic distortion is small, is widely used among recorder and radio.
Power amplifier can generate maximum power output to drive a certain load.Portable high fidelity sound equipment power amplifier
The pivotal role that " tissue, coordination " is played in entire sound system, can dominate whole system to a certain extent carry
It is exported for good sound quality.This sound equipment power amplifier can also be used in people in home theater, however used at present
The certain defect of power amplifier generally existing, that is, there are a degree of distortions for the voice exported after amplifying, largely
On affect viewing effect and user experience.
Although having there are a large amount of power amplifier systems selling on the market at present, since price is excessively high, volume is huge
The various problems such as big, the class A amplifier A are not suitable for general public and use.Therefore a kind of cheap, practical function is designed and Implemented
Portable high fidelity sound equipment power amplifier have important practical significance.
Utility model content
In order to overcome shortcoming in the prior art, cheap one kind, practical function, easy to carry, satisfaction are provided
Users ' individualized requirement, the utility model proposes a kind of Portable high fidelity Acoustic power amplification devices.
The technical solution adopted in the utility model is a kind of Portable high fidelity Acoustic power amplification device, and feature exists
In：Including voice microphone, speech amplifier, electronic sound reverberator, music microphone, mixing preamplifier, tone controller and
Power amplifier；
The voice microphone, the speech amplifier, the electronic sound reverberator, the mixing preamplifier pass through conducting wire
It is sequentially connected in series；The music microphone is connect with the mixing preamplifier by conducting wire；The mixing preamplifier,
The tone controller, the power amplifier are sequentially connected in series by conducting wire.
Preferably, the voice microphone is for acquiring and exporting voice signal；The speech amplifier is for undistorted
Amplify voice signal, and the speech amplifier input impedance is much larger than the microphone output impedance；The electronic sound reverberator is used
In generating reverberation effect to undistorted amplified voice signal, and export reverberation voice signal；The music microphone is for adopting
Collect and exports music signal；The mixing preamplifier is used to music signal and reverberation voice signal carrying out Hybrid amplifier,
And export music voice mixed signal；The tone controller be used for the music voice mixed signal of high band and low-frequency range into
Row sound quality is promoted；Music voice mixed signal after the power amplifier is used to promote sound quality carries out power amplification to push
Loud speaker sends out voice.
Compared with prior art, Portable high fidelity sound equipment power amplifier described in the utility model, realizes a kind of valence
Lattice are relatively low, practical function, Portable high fidelity sound equipment power amplifier easy to carry, meeting users ' individualized requirement, and
The utility model mainly has the following advantages：(1) compact, (2) circuit easy to carry is simple, and it is at low cost that performance stablizes (3)
Honest and clean, cost-effective (4) can meet user individual requirement.
Description of the drawings
Fig. 1：For the system construction drawing of the utility model；
Fig. 2：For speech amplifier, electronic sound reverberator and the thtee-stage shiplock circuit diagram for mixing preamplifier；
Fig. 3：For tone controller circuit diagram；
Fig. 4：For power amplifier LM386 partial circuit diagrams；
Fig. 5：For power amplifier TDA2030 partial circuit diagrams.
Specific implementation mode
The utility model is understood and implemented for the ease of those of ordinary skill in the art, it is right with reference to the accompanying drawings and embodiments
The utility model is described in further detail, it should be understood that implementation example described herein is only used for describing and explaining this
Utility model is not used to limit the utility model.
As shown in Figure 1, the system structure diagram of the utility model.Referring to Fig.1, the utility model provide it is a kind of portable
It is put before high-fidelity music center power amplifier device, including voice microphone, speech amplifier, electronic sound reverberator, music microphone, mixing
Big device, tone controller and power amplifier；It is the voice microphone, the speech amplifier, the electronic sound reverberator, described
Mixing preamplifier is sequentially connected in series by conducting wire；The music microphone is connected with the preamplifier that mixes by conducting wire
It connects；The mixing preamplifier, the tone controller, the power amplifier are sequentially connected in series by conducting wire.
The speech amplifier uses LM324 chips；The mixing preamplifier uses LM324 chips；The tone
Controller uses LM324 chips；The power amplifier uses LM386 chips and TDA2030 chips.
The utility model embodiment is introduced in conjunction with Fig. 1 to Fig. 5.The voice microphone is for acquiring and exporting voice signal；
The speech amplifier is used for undistorted amplification voice signal, and the speech amplifier input impedance is defeated much larger than the microphone
Go out impedance；The electronic sound reverberator is used to generate reverberation effect to undistorted amplified voice signal, and exports reverberation voice
Signal；The music microphone is for acquiring and exporting music signal；The mixing preamplifier is used for music signal and mixes
It rings voice signal and carries out Hybrid amplifier, and export music voice mixed signal；The tone controller is used for high band and low
The music voice mixed signal of frequency range carries out sound quality promotion；Music voice after the power amplifier is used to promote sound quality mixes
It closes signal and carries out power amplification to push loud speaker to send out voice.
Although this specification has more used voice microphone, speech amplifier, electronic sound reverberator, music microphone, mixing
The terms such as preamplifier, tone controller and power amplifier, but the possibility using other terms is not precluded.It uses
These terms are used for the purpose of more easily describing the essence of the utility model, are construed as any one of the additional limitations
All it is contrary to the spirit of the present invention.
It should be understood that the part that this specification does not elaborate belongs to the prior art.
It should be understood that the above-mentioned description for preferred embodiment is more detailed, can not therefore be considered to this
The limitation of utility model patent protection domain, those skilled in the art are not departing under the enlightenment of the utility model
Under the ambit that the utility model claims are protected, replacement or deformation can also be made, the utility model is each fallen within
Within protection domain, the utility model is claimed range and should be determined by the appended claims.
Claims (2)
1. a kind of Portable high fidelity Acoustic power amplification device, it is characterised in that：Including voice microphone, speech amplifier, electricity
Sub- reverberator, music microphone, mixing preamplifier, tone controller and power amplifier；
The voice microphone, the speech amplifier, the electronic sound reverberator, the mixing preamplifier by conducting wire successively
It is connected in series with；The music microphone is connect with the mixing preamplifier by conducting wire；It is the mixing preamplifier, described
Tone controller, the power amplifier are sequentially connected in series by conducting wire.
2. Portable high fidelity Acoustic power amplification device according to claim 1, it is characterised in that：The voice microphone
For acquiring and exporting voice signal；The speech amplifier is used for undistorted amplification voice signal；The electronic sound reverberator is used
In generating reverberation effect to undistorted amplified voice signal, and export reverberation voice signal；The music microphone is for adopting
Collect and exports music signal；The mixing preamplifier is used to music signal and reverberation voice signal carrying out Hybrid amplifier,
And export music voice mixed signal；The tone controller be used for the music voice mixed signal of high band and low-frequency range into
Row sound quality is promoted；Music voice mixed signal after the power amplifier is used to promote sound quality carries out power amplification to push
Loud speaker sends out voice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820378920.0U CN207968877U (en) | 2018-03-20 | 2018-03-20 | A kind of Portable high fidelity Acoustic power amplification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820378920.0U CN207968877U (en) | 2018-03-20 | 2018-03-20 | A kind of Portable high fidelity Acoustic power amplification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207968877U true CN207968877U (en) | 2018-10-12 |
Family
ID=63725326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820378920.0U Expired - Fee Related CN207968877U (en) | 2018-03-20 | 2018-03-20 | A kind of Portable high fidelity Acoustic power amplification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207968877U (en) |
-
2018
- 2018-03-20 CN CN201820378920.0U patent/CN207968877U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20181012 Termination date: 20190320 |