CN106101933A - Volume adjusting method and device of power amplifier system - Google Patents
Volume adjusting method and device of power amplifier system Download PDFInfo
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- CN106101933A CN106101933A CN201610548716.4A CN201610548716A CN106101933A CN 106101933 A CN106101933 A CN 106101933A CN 201610548716 A CN201610548716 A CN 201610548716A CN 106101933 A CN106101933 A CN 106101933A
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- Prior art keywords
- volume
- control signal
- module
- power
- volume control
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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
- H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
Abstract
The invention discloses a volume adjusting method and a device of a power amplifier system; the power amplification system comprises a power amplification module for performing power amplification processing on the received audio signal, a power supply module for providing working voltage for the power amplification module and a volume control module for outputting a volume control signal; the volume adjusting method of the power amplification system comprises the following steps: detecting whether a volume control module outputs a volume control signal for adjusting the volume value of the power amplification system or not; if the volume control signal is detected, the power supply module is controlled to output power supply voltage matched with the volume control signal, so that the volume value of the power amplification system corresponds to the volume control signal. The technical scheme of the invention can improve the efficiency of the power amplifier system.
Description
Technical field
The present invention relates to audio signal processing technique field, particularly to volume adjusting method and the device of a kind of power amplification system.
Background technology
Power amplifying system (abbreviation power amplification system) in stereo set includes power supply, power amplification circuit and volume
Control module；Wherein, power supply is for providing running voltage to power amplification circuit, and power amplification circuit is for believing audio frequency
Number power (amplitude) be amplified processing to promote sound horn, volume control module is for output volume control signal.
In stereo set work process, horn volume is often adjusted by user according to personal like.Existing
Volume adjustment device is by using the sound according to volume control signal size adjustment input to the audio signal of power amplification circuit
The mode of the amplitude of amount component, it is achieved the regulation to horn volume.
Although this volume adjustment device be capable of under audio signal max volume promote the undistorted output of loudspeaker, but
During audio signal volume reduces, the output of power amplification circuit can reduce therewith, and supply voltage remains unchanged.
So, when volume reduces, the input power of power amplification circuit is constant, and output reduces, and efficiency reduces.
Summary of the invention
The main object of the present invention is to provide the volume adjusting method of a kind of power amplification system, it is intended to improve the effect of power amplification system
Rate.
For achieving the above object, the present invention proposes the volume adjusting method of a kind of power amplification system, and described power amplification system includes
For the audio signal received being carried out the power amplifier module of power amplification process, for providing running voltage for described power amplifier module
Power module and for the volume control module of output volume control signal；Wherein, the volume adjusting side of described power amplification system
Method comprises the following steps:
Detect whether described volume control module exports the volume control signal for regulating power amplification system volume value；
If described volume control signal being detected, then control the output of described power module and mate with described volume control signal
Supply voltage so that the volume value that the volume value of described power amplification system is regulated by described volume control signal.
Preferably, the supply voltage that the output of described control described power module is mated with described volume control signal includes:
Judge that volume value that described volume control signal regulated is whether in preset range；
If the volume value that described volume control signal is regulated is in described preset range, then control described power module defeated
The corresponding supply voltage of volume value size gone out and regulated.
Preferably, described power amplification system also include for according to receive described volume control signal to receive described sound
Frequently the audio processing modules that signal is adjusted；The output of described control described power module is mated with described volume control signal
Supply voltage also includes:
When the volume value that described volume control signal is regulated is in described preset range, control described Audio Processing mould
Block is not responding to described volume control signal.
Preferably, the supply voltage that the output of described control described power module is mated with described volume control signal also wraps
Include:
The volume value regulated when described volume control signal is not in described preset range, and more than in described preset range
All values time, control described power module and export the maximum working voltage of corresponding described power amplifier module, and control described audio frequency
The described audio control signal that processing module response receives, so that the volume value of described power amplification system is described volume control signal
The volume value regulated.
Preferably, the supply voltage that the output of described control described power module is mated with described volume control signal also wraps
Include:
The volume value regulated when described volume control signal is not in described preset range, and less than in described preset range
All values time, control described power module and export the minimum of corresponding described power amplifier module, and control described audio frequency
The described audio control signal that processing module response receives, so that the volume value of described power amplification system is described volume control signal
The volume value regulated.
Accordingly, the present invention also proposes the volume adjustment device of a kind of power amplification system, and described power amplification system includes for right
The audio signal received carries out the power amplifier module of power amplification process, for providing the power supply of running voltage for described power amplifier module
Module and the volume control module for output volume control signal；Wherein, the volume adjustment device of described power amplification system includes
Detection module and energy supply control module；
Described detection module, for detecting whether described volume control module exports for regulating power amplification system volume value
Volume control signal；
Described energy supply control module, for when described volume control signal being detected, controls the output of described power module
The supply voltage mated with described volume control signal, so that the volume value of described power amplification system is described volume control signal institute
The volume value of regulation.
Preferably, described energy supply control module includes the first judging unit and the first power control unit；
Described first judging unit, for judging that whether volume value that described volume control signal regulated is in preset range
In；
Described first power control unit, for the volume value that regulated at described volume control signal at described default model
When enclosing interior, control the corresponding supply voltage of volume value size of the output of described power module and described regulation, so that described power amplifier
The volume value that the volume value of system is regulated by described volume control signal.
Preferably, described power amplification system also include for according to receive described volume control signal to receive described sound
Frequently the audio processing modules that signal is adjusted；Described energy supply control module also includes switch control unit；
Described switch control unit, for the volume value that regulated at described volume control signal in described preset range
Time, control the described volume control signal that described audio processing modules is not responding to receive；Regulated at described volume control signal
Volume value not in described preset range time, control described audio processing modules response receive described volume control signal,
So that the volume value that the volume value of described power amplification system is regulated by described volume control signal.
Preferably, described energy supply control module also includes second source control unit and the 3rd power control unit；
Described second source control unit, for the detected value corresponding at described detection signal not in described preset range,
And when being more than all values in described preset range, control described power module and export the maximum functional of corresponding described power amplifier module
Voltage；
Described 3rd power control unit, for the detected value corresponding at described detection signal not in described preset range,
And when being less than all values in described preset range, control described power module and export the minimum work of corresponding described power amplifier module
Voltage.
Technical solution of the present invention is defeated by using the size according to volume control signal to control power module in power amplification system
Go out the mode of correspondingly sized supply voltage, it is achieved the regulation to horn volume.When the volume value that volume control signal is regulated
During reduction, owing to using prior art to there will be " input power of power amplification circuit is constant, and output reduces "
Situation, and use technical solution of the present invention to there will be the feelings of " input power of power amplifier module reduces, and output also reduces "
Condition.Therefore, compared to prior art, technical solution of the present invention improves the efficiency of power amplification system.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the schematic flow sheet of volume adjusting method one embodiment of power amplification system of the present invention；
Fig. 2 is the schematic flow sheet of another embodiment of volume adjusting method of power amplification system of the present invention；
Fig. 3 is the high-level schematic functional block diagram of volume adjustment device one embodiment of power amplification system of the present invention；
Fig. 4 is the high-level schematic functional block diagram of energy supply control module one embodiment in Fig. 3.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
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
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under not making creative work premise all its
His embodiment, broadly falls into the scope of protection of the invention.
The present invention proposes the volume adjusting method of a kind of power amplification system.Wherein, power amplification system includes for the sound received
Frequently signal carries out the power amplifier module of power amplification process, for providing the power module of running voltage for power amplifier module and for defeated
Go out the volume control module of volume control signal.
In one embodiment, the volume adjusting method of this power amplification system includes:
S100, whether detection volume control module exports the volume control signal for regulating power amplification system volume value；
It should be noted that volume control module can be knob, it is also possible to be remote controller etc..When volume control module is
During adjustable knob, the volume value that volume control signal is corresponding is continuous print, and when volume control module is remote controller, volume controls
The volume value that signal is corresponding can be continuous print, it is also possible to be discontinuous, the most not corresponding to volume control signal volume
The variation pattern of value limits.
S200, if volume control signal being detected, then controls power module and exports the power supply mated with volume control signal
Voltage, so that the volume value that the volume value of power amplification system is regulated by volume control signal.
The power supply electricity of power module output can be changed by the dutycycle controlling the supply voltage of power module output
The size of pressure；The supply voltage of power amplifier module can also be changed by the partial pressure value controlling power amplifier module, do not limit.
When volume control module output volume control signal, the volume control signal institute of detection volume control module output
The size of the volume value of regulation.Then, the size of the volume value regulated according to volume control signal controls power module output
The size of supply voltage so that the power amplification multiple of the power amplifier module volume value corresponding with volume control signal matches,
Reach the purpose of power amplification system volume adjusting.It is noted that the volume value regulated at volume control signal changes from small to big
During, the supply voltage correspondence of power module output increases；The volume value regulated at volume control signal is from large to small
During, the supply voltage correspondence of power module output reduces.
Technical solution of the present invention controls electricity in power amplification system by using the volume value regulated according to volume control signal
The mode of the supply voltage that source module output is correspondingly sized, it is achieved the regulation to horn volume.When volume control signal is regulated
Volume value when reducing, owing to using prior art to there will be that " input power of power amplification circuit is constant, and output subtracts
Little " situation, and use technical solution of the present invention to there will be " input power of power amplifier module reduces, and output also reduces "
Situation.Therefore, compared to prior art, technical solution of the present invention improves the efficiency of power amplification system.
In a preferred embodiment, the supply voltage that the output of control power module is mated with volume control signal includes:
S210, it is judged that whether the volume value that volume control signal is regulated is in preset range；
Wherein, the volume value that volume control signal is regulated can be continuous print, it is also possible to be discrete.
If the volume value that volume control signal is regulated is continuous print, then can pre-set the first volume and the second volume
Threshold value.When detecting that volume value that volume control signal is regulated is between the first volume threshold and the second volume threshold, say
The volume value that bright current volume control signal is regulated is in preset range；When the volume detecting that volume control signal is regulated
When value is not between first threshold and Second Threshold, illustrate that volume value that current volume control signal regulated is not at default model
Enclose.Wherein, the first volume threshold is the max volume value in preset range, and the second volume threshold is the minimum sound in preset range
Value.
If the volume value that volume control signal is regulated is discrete, then can pre-set volume value table.When detecting
The volume value that regulated of volume control signal when can find in volume value table, illustrate that current volume control signal is adjusted
The volume value of joint is in preset range；The volume value regulated when the volume control signal detected can not be looked in volume value table
When finding, illustrate that volume value that current volume control signal regulated is not in preset range.
S220, if the volume value that volume control signal is regulated is in preset range, then controls power module output and institute
The corresponding supply voltage of volume value size of regulation.
When the volume value being regulated current volume control signal judges, can be by searching whether existence and working as
The same or analogous default volume value of volume value that front volume control signal is regulated is to judge that current volume control signal is adjusted
Whether the volume value of joint is in preset range.Can also be by the volume value that current volume control signal is regulated and default sound
The higher limit of value and lower limit are compared to judge that whether volume value that current volume control signal regulated is at default model
In enclosing, do not limit.
It is understood that on the one hand, during the volume value reduction that volume control signal is regulated, power module
The supply voltage of output reduces accordingly, when the volume value that volume control signal is regulated is reduced to a certain degree, and power module
The supply voltage of output possibly cannot open power amplifier module.On the other hand, the volume value regulated at volume control signal increases
During, the supply voltage of power module output increases accordingly, and the volume value regulated when volume control signal increases to
When being worth greatly, the power amplification multiple of power amplifier module is maximum.But, owing to the audio signal inputted before this to power amplifier module is not entered
Row processing and amplifying, therefore, the volume value that under the conditions of being somebody's turn to do, the volume value of power amplifier module output is regulated than current volume control signal
Little.
Therefore, it is judged that whether the volume value that volume control signal is regulated is in preset range；And control letter in volume
When number volume value regulated is in preset range, controls the supply voltage that power module output is correspondingly sized, electricity can be avoided
The volume control control signal that source control module response is too small or excessive, and then avoid power amplification system volume is being adjusted
During, misoperation occurs.
Further, power amplification system also includes for carrying out, according to the volume control signal received, the audio signal received
The audio processing modules of regulation；The supply voltage that the output of above-mentioned control power module is mated with volume control signal also includes:
S250, when the volume value that volume control signal is regulated is in preset range, controls audio processing modules and does not rings
The volume control signal that should receive.
It is understood that when the volume value that volume control signal is regulated is in preset range, illustrate by controlling
The supply voltage that power module output is mated with volume control signal just can realize the regulation to power amplification system output volume value.
If now controlling the volume control signal that audio processing modules response receives, then not only result in waste of energy, also can cause merit
The regulation entanglement of place system volume value.
In a preferred embodiment, the supply voltage that the output of above-mentioned control power module is mated with volume control signal also wraps
Include:
S260, the volume value regulated when volume control signal is not in preset range, and all more than in preset range
During value, control the maximum working voltage of the corresponding supplier's module of power module output, and control what audio processing modules response received
Audio control signal, so that the volume value that the volume value of described power amplification system is regulated by described volume control signal.
When detection detected value corresponding to signal be not in preset range, and during more than all values in preset range, explanation
The volume value that volume control signal is corresponding is relatively big, and the power amplification multiple needed for power amplifier module is the biggest.And control power module
When exporting the maximum working voltage of corresponding power amplifier module, the power amplification multiple of power amplifier module is maximum, meets system requirements.
In a preferred embodiment, the supply voltage that the output of above-mentioned control power module is mated with volume control signal also wraps
Include:
S270, the volume value regulated when volume control signal is not in preset range, and all less than in preset range
During value, control the minimum of the corresponding power amplifier module of power module output, and control what audio processing modules response received
Audio control signal, so that the volume value that the volume value of described power amplification system is regulated by described volume control signal.
When detection detected value corresponding to signal be not in preset range, and during less than all values in preset range, explanation
The volume value that volume control signal is corresponding is less, and the power amplification multiple needed for power amplifier module is the least.And control power module
During the minimum of output corresponding power amplifier module, the power amplification multiple of power amplifier module is minimum, and can with steady operation,
Meet the demand of system.
It is to say, when the volume value that volume control signal is regulated is more than all volume values in preset range, control
The maximum working voltage of the corresponding power amplifier module of power module processed output, meanwhile, audio processing modules is according to current volume control
The volume value that signal processed is regulated carries out corresponding adjustment to the audio signal of input, so that the volume of loudspeaker and volume control signal
The volume value regulated is corresponding.When the volume value that volume control signal is regulated is less than all values in preset range, control
The minimum of the corresponding power amplifier module of power module output, meanwhile, audio processing modules is according to current volume control
The volume value that signal is regulated carries out corresponding adjustment to the audio signal of input, so that the volume of loudspeaker and volume control signal institute
The volume value of regulation is corresponding.So, for each volume control signal, power amplification system can export and control letter with this volume
Number volume value that the volume value regulated is corresponding, reaches the purpose of adjusting output volume.And during whole regulation, relative to
Prior art, improves the efficiency of power amplification system.
The present invention also proposes the volume adjustment device of a kind of power amplification system.Wherein, power amplification system includes for reception
Audio signal carry out power amplification process power amplifier module, for for power amplifier module provide running voltage power module and for
The volume control module of output volume control signal.
In one embodiment, the volume adjustment device of this power amplification system includes detection module 100 and energy supply control module
200；Wherein, detection module 100, for detecting whether volume control module exports the volume for regulating power amplification system volume value
Control signal；Energy supply control module 200, for when volume control signal being detected, controls power module output and volume control
The supply voltage of Signal Matching processed, so that the volume value that the volume value of power amplification system is regulated by volume control signal.
It should be noted that volume control module can be knob, it is also possible to be remote controller etc..When volume control module is
During adjustable knob, the volume value that volume control signal is regulated is continuous print, when volume control module is remote controller, and volume control
The volume value that signal processed is regulated can be continuous print, it is also possible to is discrete, is not regulated volume control signal
The variation pattern of volume value limits.Detection module 100 can include that deck watch, deck watch's storage have and volume control signal
The default volume value that the volume value that regulated is corresponding.Energy supply control module 200 can include PWM controller, by controlling power supply
The dutycycle of the supply voltage of module output changes the size of the supply voltage of power module output；Dividing potential drop can also be included
Device, this potentiometer constitutes bleeder circuit, the volume value regulated for each volume control signal, potentiometer with power amplifier module
A corresponding supply voltage will be got, thus change the supply voltage of power amplifier module, not limit.
When detection module 100 detects volume control module output volume control signal, energy supply control module 200 basis
Supply voltage is made corresponding adjustment by the volume value that current volume control signal is regulated, so that the power amplification of power amplifier module times
Number is corresponding with the volume value that current volume control signal is regulated, and reaches the purpose of power amplification system volume adjusting.It is worth mentioning
It is that, during the volume value regulated at volume control signal changes from small to big, the supply voltage correspondence of power module output increases
Greatly；The volume value regulated at volume control signal from large to small during, the supply voltage correspondence of power module output subtracts
Little.
Technical solution of the present invention controls electricity in power amplification system by using the volume value regulated according to volume control signal
The mode of the supply voltage that source module output is correspondingly sized, it is achieved the regulation to horn volume.When volume control signal is regulated
Volume value when reducing, owing to using prior art to there will be that " input power of power amplification circuit is constant, and output subtracts
Little " situation, and use technical solution of the present invention to there will be " input power of power amplifier module reduces, and output also reduces "
Situation.Therefore, compared to prior art, technical solution of the present invention improves the efficiency of power amplification system.
In a preferred embodiment, above-mentioned energy supply control module 200 includes that the first judging unit 210 and the first power supply control
Unit 220；Wherein, the first judging unit 210, for judging that whether volume value that volume control signal regulated is in preset range
In；First power control unit 220, for when the volume value that volume control signal is regulated is in preset range, controls electricity
Source module exports the corresponding supply voltage of volume value size regulated with volume control signal.
It should be noted that the first judging unit 210 can include detection table, in detection table, storage has detection signal corresponding
The preset value of detected value.First judging unit 210 in running order middle time, if detection table in exist with current volume control
The default volume value of the same or analogous detected value of volume value that signal processed is regulated, then judge that current volume control signal is adjusted
The volume value of joint is in preset range.First judging unit 210 can also include comparator, is at the first judging unit 210
Time in duty, if the volume value that current volume control signal is regulated is more than the lower limit of comparator and less than comparator
Higher limit, then judge that volume value that current volume control signal regulated is in preset range.
When volume control module has volume control signal to export, the first judging unit 210 judges that current volume controls letter
Whether number volume value regulated is in preset range, if the volume value that current volume control signal is regulated is in preset range
In, then the first power control unit 220 controls the supply voltage that power module output matches with current volume control signal.
It is understood that on the one hand, during the volume value reduction that volume control signal is regulated, power supply controls
Module 200 controls the supply voltage of power module output and reduces accordingly, and the volume value regulated when volume control signal is reduced to
Time to a certain degree, the supply voltage of power module output 200 possibly cannot open power amplifier module.On the other hand, in volume control
During the volume value that signal is regulated increases, the supply voltage that energy supply control module 200 controls power module output is corresponding
Increasing, when the volume value that volume control signal is regulated increases to maximum, the power amplification multiple of power amplifier module is maximum.So
And, the audio signal owing to inputting before this to power amplifier module is not amplified processing, therefore, should under the conditions of power amplifier module output
Volume value corresponding to volume control signal preset of volume ratio little.
Therefore, the first judging unit 210 and the first power control unit 220 is set, is possible to prevent energy supply control module 200
Respond the volume value that too small or excessive volume control signal is regulated, and then avoid power amplification system volume is being adjusted
During, misoperation occurs.
In a preferred embodiment, above-mentioned power amplification system also includes for the volume control signal according to reception reception
The audio processing modules that audio signal is adjusted；Energy supply control module also includes switch control unit 250；
Switch control unit 250, in the volume leisure preset range that volume control signal is regulated time, controls sound
Frequently processing module is not responding to the volume control signal received；The volume value regulated at volume control signal is not in preset range
Time, control the volume control signal that audio processing modules response receives, so that the volume value of described power amplification system is described volume
The volume value that control signal is regulated.
It is understood that when the volume value that volume control signal is regulated is in preset range, illustrate by controlling
The supply voltage that power module output is mated with volume control signal just can realize the regulation to power amplification system output volume value.
If now controlling the volume control signal that audio processing modules response receives, then not only result in waste of energy, also can cause merit
The regulation entanglement of place system volume value.
When the volume value that volume control signal is regulated is not in preset range, explanation cannot be by controlling power module
The supply voltage that output is mated with volume control signal realizes the regulation to power amplification system output volume value.Now control audio frequency
The volume control signal that processing module response receives, it is possible to achieve to the regulation for method, system output volume value.
In a preferred embodiment, energy supply control module 200 also includes second source control unit 260 and the 3rd power supply control
Unit 270 processed；Wherein, second source control unit 260, for the detected value corresponding at detection signal not in preset range,
And when being more than all values in preset range, control the maximum working voltage of the corresponding power amplifier module of power module output；3rd electricity
Source control unit 270, for the detected value corresponding at detection signal not in preset range, and less than owning in preset range
During value, control the minimum of the corresponding power amplifier module of power module output.
It should be noted that second source control unit 260 and/or the 3rd power control unit 270 can be potentiometer,
PWM controller etc., do not limit.Additionally, at the detected value corresponding to the not detection signal in preset range
During reason, in addition it is also necessary to judge all values that the detected value that current detection signal is corresponding is greater than in preset range, also it is less than presetting
In the range of all values.Therefore, in the present embodiment, whether the first judging unit 210 is additionally operable to judge to detect the detected value of signal
More than all preset values, or it is additionally operable to judge that the detected value detecting signal, whether less than all preset values, does not limits.
It is to say, when the volume value that volume control signal is regulated is more than all values in preset range, the second electricity
Source control unit 260 controls the maximum working voltage of the corresponding power amplifier module of power module output, meanwhile, audio processing modules
According to current volume control signal, the audio signal of input is carried out correspondence to adjust, so that the volume of loudspeaker and volume control signal
Corresponding volume value is corresponding.When the volume value that volume control signal is regulated is less than all values in preset range, the 3rd electricity
Source control unit 270 controls the minimum of the corresponding power amplifier module of power module output, meanwhile, audio processing modules
According to current volume control signal, the audio signal of input is carried out correspondence to adjust, so that the volume of loudspeaker and volume control signal
Corresponding volume value is corresponding.So, for each volume control signal, the regulation to power amplification system volume can be realized.
And during whole regulation, relative to prior art, improve the efficiency of power amplification system.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every at this
Under the inventive concept of invention, utilize the equivalent structure transformation that description of the invention and accompanying drawing content are made, or directly/indirectly use
The technical field relevant at other is included in the scope of patent protection of the present invention.
Claims (9)
1. a volume adjusting method for power amplification system, described power amplification system includes for the audio signal received is carried out power
The power amplifier module of processing and amplifying, for providing the power module of running voltage for described power amplifier module and controlling for output volume
The volume control module of signal；It is characterized in that, the method comprises the following steps:
Detect whether described volume control module exports the volume control signal for regulating power amplification system volume value；
If described volume control signal being detected, then control described power module and export the electricity mated with described volume control signal
Source voltage, so that the volume value that the volume value of described power amplification system is regulated by described volume control signal.
2. the volume adjusting method of power amplification system as claimed in claim 1, it is characterised in that the described power module of described control
The supply voltage that output is mated with described volume control signal includes:
Judge that volume value that described volume control signal regulated is whether in preset range；
If the volume value that described volume control signal is regulated is in described preset range, then control described power module output with
The corresponding supply voltage of volume value size regulated.
3. the volume adjusting method of power amplification system as claimed in claim 2, it is characterised in that described power amplification system also includes using
In the audio processing modules described audio signal received being adjusted according to the described volume control signal received；Described control
Make the described power module supply voltage that mates with described volume control signal of output also to include:
When the volume value that described volume control signal is regulated is in described preset range, control described audio processing modules not
The described volume control signal that response receives.
4. the volume adjusting method of power amplification system as claimed in claim 3, it is characterised in that the described power module of described control
The supply voltage that output is mated with described volume control signal also includes:
The volume value regulated when described volume control signal is not in described preset range, and more than the institute in described preset range
When having value, control described power module and export the maximum working voltage of corresponding described power amplifier module, and control described Audio Processing
The described audio control signal that module response receives, so that the volume value of described power amplification system is adjusted by described volume control signal
The volume value of joint.
5. the volume adjusting method of the power amplification system as described in claim 3 or 4, it is characterised in that the described power supply of described control
The supply voltage that module output is mated with described volume control signal also includes:
The volume value regulated when described volume control signal is not in described preset range, and less than the institute in described preset range
When having value, control described power module and export the minimum of corresponding described power amplifier module, and control described Audio Processing
The described audio control signal that module response receives, so that the volume value of described power amplification system is adjusted by described volume control signal
The volume value of joint.
6. a volume adjustment device for power amplification system, described power amplification system includes for the audio signal received is carried out power
The power amplifier module of processing and amplifying, for providing the power module of running voltage for described power amplifier module and controlling for output volume
The volume control module of signal；It is characterized in that, the volume adjustment device of described power amplification system includes detection module and power supply control
Molding block；
Described detection module, for detecting whether described volume control module exports the volume for regulating power amplification system volume value
Control signal；
Described energy supply control module, for when described volume control signal being detected, controls the output of described power module and institute
State the supply voltage of volume control signal coupling, so that the volume value of described power amplification system is regulated by described volume control signal
Volume value.
7. the volume adjustment device of power amplification system as claimed in claim 6, it is characterised in that described energy supply control module includes
First judging unit and the first power control unit；
Described first judging unit, for judging that volume value that described volume control signal regulated is whether in preset range；
Described first power control unit, for the volume value that regulated at described volume control signal in described preset range
Time, control the output of described power module and the corresponding supply voltage of volume value size that described volume control signal is regulated.
8. the volume adjustment device of power amplification system as claimed in claim 7, it is characterised in that described power amplification system also includes using
In the audio processing modules described audio signal received being adjusted according to the described volume control signal received；Described electricity
Source control module also includes switch control unit；
Described switch control unit, is used for when the volume value that described volume control signal is regulated is in described preset range,
Control the described volume control signal that described audio processing modules is not responding to receive；At the sound that described volume control signal is regulated
When value is not in described preset range, control the described volume control signal that the response of described audio processing modules receives, so that
The volume value that the volume value of described power amplification system is regulated by described volume control signal.
9. the volume adjustment device of power amplification system as claimed in claim 8, it is characterised in that described energy supply control module also wraps
Include second source control unit and the 3rd power control unit；
Described second source control unit, for the volume value that regulated at described volume control signal not at described default model
Enclose, and when being more than all values in described preset range, control described power module and export the maximum of corresponding described power amplifier module
Running voltage；
Described 3rd power control unit, for the volume value that regulated at described volume control signal not at described default model
Enclose, and when being less than all values in described preset range, control described power module and export the minimum of corresponding described power amplifier module
Running voltage.
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| CN201610548716.4A CN106101933B (en) | 2016-07-11 | 2016-07-11 | Volume adjusting method and device of power amplifier system |
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| CN201610548716.4A CN106101933B (en) | 2016-07-11 | 2016-07-11 | Volume adjusting method and device of power amplifier system |
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| CN106101933B CN106101933B (en) | 2020-07-31 |
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| CN106101933B (en) | 2020-07-31 |
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