CN205754227U - Power professional audio amplifying device - Google Patents
Power professional audio amplifying device Download PDFInfo
- Publication number
- CN205754227U CN205754227U CN201520989528.6U CN201520989528U CN205754227U CN 205754227 U CN205754227 U CN 205754227U CN 201520989528 U CN201520989528 U CN 201520989528U CN 205754227 U CN205754227 U CN 205754227U
- Authority
- CN
- China
- Prior art keywords
- frequency compensation
- audio signal
- low
- follower
- frequency
- 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.)
- Active
Links
Abstract
This utility model relates to a kind of power professional audio amplifying device, including: balancing circuitry, follower, high-frequency compensation apparatus, low-frequency compensation device and negative circuit；Described balancing circuitry connects follower；Described follower connects high-frequency compensation apparatus, low-frequency compensation device respectively；Described high-frequency compensation apparatus, the outfan of low-frequency compensation device connect negative circuit；Described balancing circuitry incoming audio signal, for suppressing the common-mode noise of audio signal；Audio signal is isolated by described follower, and audio signal is divided into two-way input described high-frequency compensation apparatus, low-frequency compensation device；Described high-frequency compensation apparatus, low-frequency compensation device carry out frequency compensation to audio signal respectively；The phase place of audio signal is adjusted and exports by described negative circuit.Technology of the present utility model, simple to the regulation process operation of the audio signal of input, circuit structure is easily achieved, low cost.
Description
Technical field
This utility model relates to Audiotechnica field, particularly relates to the power professional audio amplifying device of a kind of active audio amplifier.
Background technology
Professional audio merit amplifier, at the junior college's power audio amplifier specifying terms and conditions to drive.It is widely used in the particular places such as commercial performance, stadiums, meeting room, KTV amusement, properties of product are had higher requirements.
Traditional power professional audio amplifying device, simply a simple audio signal power amplification, cannot adjust effect to particular place.When needs carry out adjusting effect, mainly by computer or dsp chip control mode, by controlling curve, EQ control etc., although realize function more, but regulation process is complicated, and device cost is higher.
Utility model content
Based on this, it is necessary to for the problem that existing regulation process is complicated, it is provided that a kind of power professional audio amplifying device.
A kind of power professional audio amplifying device, including: balancing circuitry, follower, high-frequency compensation apparatus, low-frequency compensation device and negative circuit；
Described balancing circuitry connects follower；
Described follower connects high-frequency compensation apparatus, low-frequency compensation device respectively；
Described high-frequency compensation apparatus, the outfan of low-frequency compensation device connect negative circuit；
Described balancing circuitry incoming audio signal, for suppressing the common-mode noise of audio signal；Audio signal is isolated by described follower, and audio signal is divided into two-way input described high-frequency compensation apparatus, low-frequency compensation device；Described high-frequency compensation apparatus, low-frequency compensation device carry out frequency compensation to audio signal respectively；The phase place of audio signal is adjusted and exports by described negative circuit.
In one embodiment, described high-frequency compensation apparatus includes the first switch and high frequency compensation；
Described balancing circuitry connects high frequency compensation by described first switch.
In one embodiment, described low-frequency compensation device includes second switch and low-frequency compensation circuit；
Described balancing circuitry connects low-frequency compensation circuit by described second switch.
In one embodiment, described balancing circuitry suppression common-mode noise is more than or equal to 60dB.
In one embodiment, the frequency range of the audio signal of described input high-frequency compensation apparatus, low-frequency compensation device is 20Hz-20KHz.
In one embodiment, the frequency range of the audio signal of described input high-frequency compensation apparatus, low-frequency compensation device is 100Hz-20KHz.
In one embodiment, the 5KHz frequency range of audio signal is promoted 3dB by high frequency compensation.
In one embodiment, the phase place of described negative circuit adjustment audio signal is 0 degree and 180 degree.
Above-mentioned power professional audio amplifying device, connects composition by balancing circuitry, follower, high-frequency compensation apparatus, low-frequency compensation device and negative circuit, and simple to the regulation process operation of the audio signal of input, circuit structure is easily achieved, low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the power professional audio amplifying device of an embodiment；
Fig. 2 is the structural representation of the high and low frequency compensation device part of an embodiment.
Detailed description of the invention
Structural representation with reference to the power professional audio amplifying device that Fig. 1, Fig. 1 are an embodiment.
A kind of power professional audio amplifying device, including: balancing circuitry 101, follower 102, high-frequency compensation apparatus 103, low-frequency compensation device 104 and negative circuit 105.
Described balancing circuitry 101 connects follower 102；Described follower 102 connects high-frequency compensation apparatus 103, low-frequency compensation device 104 respectively；Described high-frequency compensation apparatus 103, the outfan of low-frequency compensation device 104 connect negative circuit 105.
Described balancing circuitry 101 incoming audio signal, for suppressing the common-mode noise of audio signal；In one embodiment, balancing circuitry 101 suppresses common-mode noise to be more than or equal to 60dB；The interference noise of long range signals source transmission can be effectively reduced.
In one embodiment, described input high-frequency compensation apparatus 103, the frequency range of audio signal of low-frequency compensation device 104 are 20Hz-20KHz, i.e. lead directly to audio signal, may be used for listening the music of genuineness.Alternatively, it is also possible to audio signal is carried out high-pass filtering；The frequency range of filtering is 100Hz-20KHz, may be used for meeting room such as and applies, low frequency is filtered and makes speech utterance become apparent from.
Audio signal is isolated by described follower 102, and audio signal is divided into two-way input described high-frequency compensation apparatus 103, low-frequency compensation device 104；Described high-frequency compensation apparatus 103, low-frequency compensation device 104 carry out frequency compensation to audio signal respectively.
In one embodiment, with reference to shown in Fig. 2, described high-frequency compensation apparatus 103 includes the first switch 1031 and high frequency compensation 1032；Described follower 102 is by described first switch 1031 connection high frequency compensation 1032.Described low-frequency compensation device 104 includes second switch 1041 and low-frequency compensation circuit 1042；Described follower 102 connects low-frequency compensation circuit 1042 by described second switch 1041.
In one embodiment, the 5KHz frequency range of audio signal is promoted 3dB by high frequency compensation；Concrete, described low-frequency compensation circuit can be by selecting to switch the value of feedback of the resistance changing low-frequency compensation circuit so that 100Hz frequency range lifting 3dB, and the bass making the audio signal of output is the most dynamic；High frequency compensation can also change the value of feedback of resistance by selecting switch thus 5KHz frequency range promotes 3dB, and the high pitch making the audio signal of output is louder.
The phase place of audio signal is adjusted and exports by described negative circuit 105；The phase place of described negative circuit 105 adjustment audio signal is 0 degree and 180 degree.
Above-mentioned power professional audio amplifying device, composition is connected by balancing circuitry 101, follower 102, high-frequency compensation apparatus 103, low-frequency compensation device 104 and negative circuit 105, simple to the regulation process operation of the audio signal of input, circuit structure is easily achieved, low cost.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, and it describes more concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (8)
1. a power professional audio amplifying device, it is characterised in that including: balancing circuitry, follower, high-frequency compensation apparatus, low-frequency compensation device and negative circuit；
Described balancing circuitry connects follower；
Described follower connects high-frequency compensation apparatus, low-frequency compensation device respectively；
Described high-frequency compensation apparatus, the outfan of low-frequency compensation device connect negative circuit；
Described balancing circuitry incoming audio signal, for suppressing the common-mode noise of audio signal；Audio signal is isolated by described follower, and audio signal is divided into two-way input described high-frequency compensation apparatus, low-frequency compensation device；Described high-frequency compensation apparatus, low-frequency compensation device carry out frequency compensation to audio signal respectively；The phase place of audio signal is adjusted and exports by described negative circuit.
Power professional audio amplifying device the most according to claim 1, it is characterised in that described high-frequency compensation apparatus includes the first switch and high frequency compensation；
Described balancing circuitry connects high frequency compensation by described first switch.
Power professional audio amplifying device the most according to claim 1, it is characterised in that described low-frequency compensation device includes second switch and low-frequency compensation circuit；
Described balancing circuitry connects low-frequency compensation circuit by described second switch.
Power professional audio amplifying device the most according to claim 1, it is characterised in that described balancing circuitry suppression common-mode noise is more than or equal to 60dB.
Power professional audio amplifying device the most according to claim 1, it is characterised in that described input high-frequency compensation apparatus, the frequency range of audio signal of low-frequency compensation device are 20Hz-20KHz.
Power professional audio amplifying device the most according to claim 1, it is characterised in that described input high-frequency compensation apparatus, the frequency range of audio signal of low-frequency compensation device are 100Hz-20KHz.
Power professional audio amplifying device the most according to claim 2, it is characterised in that the 5KHz frequency range of audio signal is promoted 3dB by high frequency compensation.
Power professional audio amplifying device the most according to claim 1, it is characterised in that the phase place of described negative circuit adjustment audio signal is 0 degree and 180 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520989528.6U CN205754227U (en) | 2015-12-02 | 2015-12-02 | Power professional audio amplifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520989528.6U CN205754227U (en) | 2015-12-02 | 2015-12-02 | Power professional audio amplifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205754227U true CN205754227U (en) | 2016-11-30 |
Family
ID=57387695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520989528.6U Active CN205754227U (en) | 2015-12-02 | 2015-12-02 | Power professional audio amplifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205754227U (en) |
-
2015
- 2015-12-02 CN CN201520989528.6U patent/CN205754227U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5488389B2 (en) | Acoustic signal processing device | |
| WO2012024144A9 (en) | Method and system for controlling distortion in a critical frequency band of an audio signal | |
| CN106105259A (en) | Microphone apparatus and the method for high acoustics overload point are provided | |
| CN104717588A (en) | Low-power-consumption in-ear type active noise reduction earphone and noise reduction method | |
| WO2016150085A1 (en) | Dynamic low-frequency enhancement method and system based on equal loudness contour | |
| CN1672462A (en) | Signal strength information dependent control of small electrodynamic transducers in audio systems | |
| WO2013174165A1 (en) | Audio signal broadcasting system and electronic apparatus | |
| US9473102B2 (en) | Level adjusting circuit, digital sound processor, audio AMP integrated circuit, electronic apparatus and method of automatically adjusting level of audio signal | |
| CN101843115A (en) | Auditory sensibility correction device | |
| CN102118668B (en) | Loudspeaker system and loudspeaker driving circuit | |
| CN202841493U (en) | Electronic frequency-halving audio signal processing circuit | |
| CN102438193B (en) | Safe earphone capable of automatically muting | |
| US20090290728A1 (en) | Dynamic contoured-sound/subwoofer-synthesis audio system | |
| CN204316741U (en) | A kind of automatic calibration noise reduction pickup | |
| JP2013251746A (en) | Capacitor microphone | |
| US9941860B1 (en) | Filter circuit for noise cancellation earphones | |
| CN205754227U (en) | Power professional audio amplifying device | |
| CN205754228U (en) | Audio power amplifying circuit | |
| CN205754226U (en) | Active audio frequency power amplifier | |
| CN201230368Y (en) | Electronic tube and solid electronic sound division mixing power amplifier | |
| US20120016505A1 (en) | Electronic audio device | |
| CN102395077B (en) | Anti-interference earphone | |
| CN205039780U (en) | Take dual power supply's dual track audio power amplifier circuit | |
| CN213754939U (en) | Hi-Fi sound amplifier | |
| CN204993809U (en) | Dual track audio power amplifier circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Science City (Guangzhou) Finance Leasing Co., Ltd Assignor: GUANGZHOU RUIFENG AUDIO TECHNOLOGY CORPORATION Ltd. Contract record no.: X2020980000388 Denomination of utility model: Specialty audio power amplification device Granted publication date: 20161130 License type: Exclusive License Record date: 20200228 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Specialty audio power amplification device Effective date of registration: 20200302 Granted publication date: 20161130 Pledgee: Science City (Guangzhou) Finance Leasing Co., Ltd Pledgor: GUANGZHOU RUIFENG AUDIO TECHNOLOGY CORPORATION Ltd. Registration number: Y2020980000413 |
|
| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Science City (Guangzhou) Finance Leasing Co.,Ltd. Assignor: GUANGZHOU RUIFENG AUDIO TECHNOLOGY Corp.,Ltd. Contract record no.: X2020980000388 Date of cancellation: 20220217 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220217 Granted publication date: 20161130 Pledgee: Science City (Guangzhou) Finance Leasing Co.,Ltd. Pledgor: GUANGZHOU RUIFENG AUDIO TECHNOLOGY Corp.,Ltd. Registration number: Y2020980000413 |