CN112995853B - Sound box and control method and power supply control circuit thereof - Google Patents
Sound box and control method and power supply control circuit thereof Download PDFInfo
- Publication number
- CN112995853B CN112995853B CN202110211519.4A CN202110211519A CN112995853B CN 112995853 B CN112995853 B CN 112995853B CN 202110211519 A CN202110211519 A CN 202110211519A CN 112995853 B CN112995853 B CN 112995853B
- Authority
- CN
- China
- Prior art keywords
- control parameter
- resistor
- signal
- target
- audio output
- 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
Images
Classifications
-
- 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
- H04R3/007—Protection circuits for transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
Abstract
The invention discloses a sound box control method, which comprises the following steps: detecting an audio output signal of the loudspeaker box; determining target control parameters of a voltage regulating module according to the audio output signal; controlling the voltage regulating module to regulate the power supply signal of the sound box to a target voltage value corresponding to the audio output signal according to the target control parameter; wherein different audio output signals correspond to different target voltage values. The invention also discloses a power supply control circuit and a sound box. The invention aims to ensure that the working voltage of the sound box can realize the consideration of both the audio playing quality and the cruising ability.
Description
Technical Field
The invention relates to the technical field of sound boxes, in particular to a sound box control method, a power supply control circuit and a sound box.
Background
With the improvement of living standard of people, the application of the sound box in daily life is more and more extensive. The voltage required by the operation of the sound box is mostly not matched with the voltage provided by the power supply, so that the sound box can realize the audio playing function only after the voltage of the power supply signal of the power supply is regulated.
However, at present, the sound box can adjust the electric signal to a fixed voltage value, neglect the actual use requirement of the sound box, and cause the actual working voltage of the sound box to be too high or too low, and the actual working voltage is too high and can damage the cruising ability of the sound box, and the actual working voltage is too low and can cause the audio playing quality of the sound box to be affected. Therefore, the problem that the audio playing quality and the cruising ability cannot be considered at the same time exists in the working voltage of the conventional loudspeaker box.
Disclosure of Invention
The invention mainly aims to provide a sound box control method, aiming at ensuring that the working voltage of a sound box can realize the consideration of audio playing quality and cruising ability.
In order to achieve the above object, the present invention provides a sound box control method, including the steps of:
detecting an audio output signal of the loudspeaker box;
determining target control parameters of a voltage regulating module according to the audio output signal;
and controlling the voltage regulating module to regulate the power supply signal of the sound box to a target voltage value corresponding to the audio output signal according to the target control parameter, wherein different audio output signals correspond to different target voltage values.
Optionally, the step of determining a target control parameter of a voltage regulation module according to the audio output signal includes:
determining the magnitude relation between the signal characteristic value of the audio output signal and a set signal threshold;
and determining the target control parameter according to the size relation.
Optionally, the step of determining the target control parameter according to the size relationship includes:
when the signal characteristic value is larger than the set signal threshold value, determining the target control parameter as a first control parameter;
when the signal characteristic value is smaller than the set signal threshold value, determining the target control parameter as a second control parameter;
and the target voltage value corresponding to the first control parameter is greater than the target voltage value corresponding to the second control parameter.
Optionally, the voltage regulation module includes the chip that steps up and with the adjusting resistor that the signal output part of the chip that steps up is connected, the input of the chip that steps up with provide power supply signal's power is connected, according to target control parameter control the voltage regulation module will the power supply signal adjustment of audio output signal reaches the step of the corresponding target voltage value of audio output signal includes:
controlling the boosting chip to boost the power supply signal to a set voltage value to obtain an output signal;
and adjusting the resistance value of the adjusting resistor according to the target control parameter so as to adjust the output signal to the target voltage value.
Optionally, the step of adjusting the resistance value of the adjusting resistor according to the target control parameter includes:
when the target control parameter is a first control parameter, adjusting the adjusting resistor to a first resistance value;
when the target control parameter is a second control parameter, adjusting the adjusting resistor to a second resistance value;
the target voltage value corresponding to the first control parameter is larger than the target voltage value corresponding to the second control parameter, and the first resistance value is larger than the second resistance value.
Optionally, the adjusting resistor includes a first resistor, a second resistor, a third resistor, and a control switch, the first resistor is connected in series with the third resistor, one end of the first resistor connected in series with the third resistor is connected to the signal output end of the boost chip, the other end of the first resistor connected in series with the third resistor is grounded, the second resistor is connected in series with the control switch, and the second resistor connected in series with the control switch is connected in parallel with the first resistor;
when the target control parameter is a first control parameter, the step of adjusting the adjusting resistor to a first resistance value comprises:
when the target control parameter is the first control parameter, closing the control switch;
when the target control parameter is a second control parameter, the step of adjusting the adjusting resistor to a second resistance value comprises:
and when the target control parameter is the second control parameter, the control switch is switched off.
Optionally, the first control parameter is a high level signal, and when the target control parameter is the first control parameter, the step of closing the control switch includes:
inputting a high level signal to the control switch to close the control switch;
the second control parameter is a low level signal, and the step of turning off the control switch when the target control parameter is the second control parameter includes:
and inputting a low level signal to the control switch to turn off the control switch.
In addition, in order to achieve the above object, the present application further provides a power supply control circuit applied to a sound box, the power supply control circuit including:
the detection module is used for detecting an audio output signal of the sound box;
a comparator connected to the detection module, the comparator configured to determine a target control parameter from the audio output signal;
the voltage regulating module is connected with the comparator and the power supply providing the power supply signal, and the voltage regulating module is used for regulating the power supply signal of the sound box to a target voltage value corresponding to the audio output signal according to the target control parameter.
Optionally, the voltage regulating module includes a boost chip and a regulating resistor, an input end of the boost chip is connected to the power supply, the regulating resistor includes a first resistor, a second resistor, a third resistor and a control switch, the first resistor is connected in series with the third resistor, one end of the first resistor connected in series with the third resistor is connected to a signal output end of the boost chip, the other end of the first resistor connected in series with the third resistor is grounded, the second resistor is connected in series with the control switch, and the second resistor connected in series with the control switch is connected in parallel with the first resistor;
the boosting chip is used for boosting the power supply signal to a set voltage value to obtain an output signal;
the control switch is used for being switched on or switched off according to the target control parameter so as to adjust the output signal to the target voltage value by adjusting the resistance value of the adjusting resistor.
In addition, in order to achieve the above object, the present application also provides an acoustic enclosure, including: the sound box control method comprises a memory, a processor and a sound box control program which is stored on the memory and can run on the processor, wherein the sound box control program realizes the steps of the sound box control method when being executed by the processor.
The invention provides a sound box control method, which determines target control parameters of a voltage regulating module based on detecting audio output signals of a sound box, wherein the target control parameters are different when the audio output signals are different, and the different target control parameters enable the voltage regulating module to regulate power supply signals of the sound box to target voltage values corresponding to different audio output signals.
Drawings
FIG. 1 is a schematic flow chart illustrating a sound box control method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating another embodiment of a speaker controlling method according to the present invention;
FIG. 3 is a schematic flow chart illustrating a sound box control method according to another embodiment of the present invention;
FIG. 4 is a schematic diagram of a hardware configuration of a power supply control circuit according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a hardware structure involved in the operation of the sound box according to an embodiment of the present invention.
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The main solution of the embodiment of the invention is as follows: detecting an audio output signal of the loudspeaker box; determining target control parameters of a voltage regulating module according to the audio output signal; and controlling the voltage regulating module to regulate the power supply signal of the sound box to a target voltage value corresponding to the audio output signal according to the target control parameter, wherein different audio output signals correspond to different target voltage values.
In the prior art, the working voltage of the sound box has the problem that the audio playing quality and the cruising ability cannot be considered.
The invention provides the solution, and aims to realize the balance of audio playing quality and cruising ability.
The embodiment of the invention provides a sound box control method which is applied to processing power supply signals of a sound box. The sound box can be any type of sound box according to actual requirements, such as a wireless sound box (e.g., a bluetooth sound box), a wired sound box, and the like.
Referring to fig. 2, an embodiment of a speaker control method according to the present application is provided. In this embodiment, the speaker control method includes:
step S10, detecting an audio output signal of the sound box;
the audio output signal here specifically refers to an audio signal played by a power amplifier in the sound box.
Specifically, in the process of playing audio by the sound box, signal acquisition can be performed on a signal input end of a power amplifier of the sound box to obtain an audio output signal.
The detection of the audio output signal may be triggered based on an instruction input by a user, or may be automatically acquired at set time intervals during the process of playing audio by the sound box.
Step S20, determining target control parameters of a pressure regulating module according to the audio output signal;
the target control parameter is specifically a control parameter used for controlling a voltage regulating module in the sound box so that a voltage value of the voltage regulating module after regulating the voltage of the power supply signal can reach a target voltage value. The target control parameter may be an electrical signal, a communication signal, or the like.
The target voltage value is specifically a target value of a voltage required to be reached after the power supply signal is boosted.
Different audio output signals correspond to different target voltage values, and different target voltage values correspond to different target control parameters. Specifically, the magnitude of the target voltage values corresponding to different audio output signals may be preset, and then the correspondence between the audio output signals and the target control parameters may be established based on the relationship between the target voltage values and the target control parameters. The corresponding relation may be a direct corresponding relation between the audio output signal and the target control parameter, or a corresponding relation between the audio output signal and the target control parameter with the target voltage value as an intermediate parameter. Specifically, the corresponding relationship may be in the form of a mapping relationship, a calculation relationship, or the like. For example, the corresponding relationship may be a functional relationship between the audio output signal and the target control parameter, a mapping relationship between audio output signals with different values and the target control parameter, or a mapping relationship between a value interval corresponding to different audio output signals and the target control parameter. In the corresponding relationship, the larger the signal characteristic value (such as amplitude value, frequency value, etc.) of the audio output signal is, the larger the target voltage value corresponding to the corresponding target control parameter is; conversely, the smaller the signal characteristic value (such as amplitude value, frequency value, etc.) of the audio output signal is, the smaller the target voltage value corresponding to the corresponding target control parameter is. Based on the corresponding relation, the target control parameter corresponding to the current audio output signal can be determined.
The number of the determined corresponding relations between the audio output signals and the target control parameters can be multiple, and one of the target control parameters used for determining the current audio output signal is obtained based on the actual use requirement of the sound box. In different corresponding relations, the target control parameters corresponding to the same audio output signal may be different. Specifically, the user setting parameters may be obtained, the power saving level required by the user is determined based on the setting parameters, and one of a plurality of preset corresponding relationships is selected based on the power saving level to determine the target control parameter corresponding to the current audio output signal. The higher the power saving level is, the stronger the cruising ability of the sound box is, and the smaller the target voltage value of the target control parameter corresponding to the current audio output signal is.
And S30, controlling the voltage regulating module to regulate the power supply signal of the sound box to a target voltage value corresponding to the audio output signal according to the target control parameter.
Specifically, the operation of the voltage regulating module in the sound box can be controlled based on the target control parameter, so that the voltage regulating module regulates the power supply signal input by the power supply to a corresponding target voltage value.
In this embodiment, the voltage regulating module is mainly used for boosting the power supply signal. In other embodiments, the voltage regulating module may also be configured to step down the power supply signal according to actual requirements.
The method determines target control parameters of a voltage regulating module based on detecting audio output signals of a sound box, the target control parameters are different when the audio output signals are different, the different target control parameters enable the voltage regulating module to regulate power supply signals of the sound box to target voltage values corresponding to different audio output signals, in the mode, the voltage values of the power supply signals of the sound box after voltage regulation are not fixed but are different along with the difference of the audio output signals, the playing requirements of the sound box are represented by the audio output signals, and therefore the power supply signals of the sound box can be adjusted to meet the actual playing requirements of the sound box, the working voltage of the sound box is prevented from being too high or too low, and the audio playing quality and the cruising ability are both achieved.
Further, in this embodiment, referring to fig. 2, the step S20 includes:
step S21, determining the magnitude relation between the signal characteristic value of the audio output signal and a set signal threshold;
the signal characteristic value is in particular a characteristic parameter characterizing the signal strength of the audio output signal. The signal characteristic value may specifically include a signal amplitude value, a signal frequency value, and the like.
After the audio output signal is obtained, the signal characteristic value of the audio output signal is extracted, and the extracted result is compared with a set signal threshold value.
The specific size of the set signal threshold can be set according to actual requirements, and can be a parameter stored in the sound box by default or a parameter generated and stored based on a user instruction.
The magnitude relationship here specifically includes that the audio output signal is greater than the set signal threshold, and that the audio output signal is less than the set signal threshold.
And S22, determining the target control parameters according to the size relationship.
Different size relationships correspond to different target control parameters. Specifically, when the signal characteristic value is greater than the set signal threshold, determining the target control parameter as a first control parameter; when the signal characteristic value is smaller than the set signal threshold value, determining the target control parameter as a second control parameter; and the target voltage value corresponding to the first control parameter is greater than the target voltage value corresponding to the second control parameter.
When the target control parameter is an electrical signal, the first control parameter and the second control parameter are electrical signals with different electrical performance parameters (such as level, current, voltage, power, etc.); when the target control parameter is a communication signal, the first control parameter and the second control parameter are communication signals containing different characteristic information.
In this embodiment, when the audio output signal is large, it indicates that the normal operating voltage required by the sound box for playing is large, and the power supply signal of the sound box is adjusted to a high voltage to make the sound box operate at the high voltage, which is beneficial to ensuring the playing tone quality when the sound box plays the audio output signal; when the audio output signal is smaller, the normal working voltage required by the sound box playing is smaller, and the power supply signal of the sound box is adjusted to be lower voltage to enable the sound box to work under low voltage, so that the energy consumption of the sound box during audio playing is reduced.
Further, based on any one of the above embodiments, another embodiment of the sound box control method of the present application is provided. In this embodiment, the audio amplifier includes boost chip 1 and with the adjusting resistor that boost chip 1's signal output part is connected, boost chip 1's input with provide power signal's power is connected, the power signal before stepping up is the signal of telecommunication of power output. The boost chip 1 is a processing unit capable of boosting the power supply signal to a fixed voltage value, and based on this, referring to fig. 3, the step S30 includes:
step S31, controlling the boosting chip 1 to boost the power supply signal to a set voltage value to obtain an output signal;
after the power supply inputs the power supply signal to the voltage boost chip 1, the voltage boost chip 1 boosts the input power supply signal to a fixed voltage value to obtain an output signal. The specific magnitude of the set voltage value can be set according to actual requirements. The set voltage value is greater than or equal to the target voltage value.
And step S32, adjusting the resistance value of the adjusting resistor according to the target control parameter so as to adjust the output signal to the target voltage value.
The connection mode between the regulating resistor and the output end of the boost chip 1 is not particularly limited, and only the regulating resistor needs to be ensured to be capable of adjusting the voltage of the output signal.
Different target control parameters correspond to different target resistance values of the adjusting resistor. And the larger the target voltage value corresponding to the target control parameter is, the larger the corresponding target resistance value is. The adjusting resistor is adjusted to the target resistance value, so that the power supply signal can reach the target voltage value corresponding to the target control parameter.
Specifically, in this embodiment, when the target control parameter is a first control parameter, the adjusting resistor is adjusted to a first resistance value; when the target control parameter is a second control parameter, adjusting the adjusting resistor to a second resistance value; the target voltage value corresponding to the first control parameter is larger than the target voltage value corresponding to the second control parameter, and the first resistance value is larger than the second resistance value.
It should be noted that the first control parameter and the second control parameter in the present embodiment specifically refer to the same parameters as the first control parameter and the second control parameter in the above-described embodiment.
In other embodiments, the target control parameter may be set to more than two according to actual requirements in response to the number of all target voltage values adjustable by the sound box, and based on this, the target resistance value may be set to more than two according to actual requirements.
In this embodiment, the power supply signal of power input steps up to the set voltage value through boost chip 1 earlier after, again based on the resistance change of adjusting resistance to boost chip 1's output signal's the voltage value adjustment to the target voltage value, then adjust adjusting resistance to great resistance when the required operating voltage of audio amplifier is great, then adjust adjusting resistance to less resistance when the required operating voltage of audio amplifier is less, thereby realize that power supply signal's voltage value can adjust according to the audio playback demand of difference under boost chip 1 and adjusting resistance's cooperation, avoid lasting at fixed high-voltage operation, effectively improve the duration of audio amplifier.
Further, in this embodiment, referring to fig. 4, the adjusting resistor includes a first resistor R1, a second resistor R1, a third resistor R1, and a control switch 5, where the first resistor R1 is connected in series with the third resistor R1, one end of the first resistor R1 connected in series with the third resistor R1 is connected to the output end of the boost chip 1, the other end of the first resistor R1 connected in series with the third resistor R1 is grounded, the second resistor R1 is connected in series with the control switch 5, and the second resistor R1 connected in series with the control switch 5 is connected in parallel with the first resistor R1, based on which, when the target control parameter is the first control parameter, the step of adjusting the adjusting resistor to the first resistance value includes: when the target control parameter is a first control parameter, closing the control switch 5; when the target control parameter is a second control parameter, the step of adjusting the adjusting resistor to a second resistance value comprises: and when the target control parameter is the second control parameter, the control switch 5 is switched off.
Specifically, the resistance value of the first resistor R1 is defined as R1, the resistance value of the second resistor R1 is defined as R2, the resistance value of the third resistor R1 is defined as R3, and the voltage value of the output signal of the boost chip 1 is defined as Vref, based on which, when the switch 5 is controlled to be closed, the voltage value (i.e., the target voltage value corresponding to the first control parameter) VoutH = Vref [1+ R3/(R1// R2) ], where R1// R2 refers to the resistance value of the first resistor R1 and the second resistor R1 connected in parallel, and R1// R2= R1+ R2/(R1 + R2); the voltage value adjusted by the output signal, i.e., the target voltage value corresponding to the second control parameter) VoutL = Vref (1 + R3/R1) when the control switch 5 is turned off. Vouth > VoutL, thereby realizing that the power supply signal is quickly boosted to different target voltage values by controlling the opening and closing of the switch 5.
In the present embodiment, the first control parameter and the second control parameter are electric signals input to the control switch 5. Wherein the control switch 5 may be a Mos switch. Specifically, the first control parameter is a high level signal, and the second control parameter is a low level signal. Based on this, when the target control parameter is the first control parameter, the step of closing the control switch 5 includes: a high level signal is input to the control switch 5 to close the control switch 5. The second control parameter is a low level signal, and the step of turning off the control switch 5 when the target control parameter is the second control parameter includes: a low level signal is input to the control switch 5 to turn off the control switch 5. The on and off of the control switch 5 are controlled by the high and low level signals, so that the control switch 5 can respond quickly, and the power utilization signal of the sound box can be adjusted to a target voltage value meeting the current playing requirement quickly.
The embodiment of the invention also provides a power supply control circuit which is applied to adjusting the power supply signal of the sound box.
In this embodiment, referring to fig. 4, the power supply control circuit includes a detection module 2, a comparator 3, a voltage regulation module, and a power amplifier 4.
The power amplifier 4 is used for playing the audio output signal.
The detection module 2 is connected with the input end of the power amplifier 4 to detect the audio output signal of the sound box.
The comparator 3 is connected with the detection module 2, and the comparator 3 is used for determining a target control parameter according to the audio output signal.
The voltage regulating module is connected with the comparator 3, connected with a power supply for providing power supply signals, and used for regulating the power supply signals of the sound box to a target voltage value corresponding to the audio output signals according to the target control parameters.
Further, the voltage regulating module comprises a voltage boosting chip 1 and a regulating resistor, the input end of the voltage boosting chip 1 is connected with the power supply, the regulating resistor comprises a first resistor R1, a second resistor R1, a third resistor R1 and a control switch 5, the first resistor R1 is connected with the third resistor R1 in series, one end of the first resistor R1 connected with the third resistor R1 in series is connected with the signal output end of the voltage boosting chip 1, the other end of the first resistor R1 connected with the third resistor R1 in series is grounded, the second resistor R1 is connected with the control switch 5 in series, and the second resistor R1 connected with the control switch 5 in series is connected with the first resistor R1 in parallel; the boost chip 1 is used for boosting the power supply signal to a set voltage value to obtain an output signal; the control switch 5 is used for being turned on or turned off according to the target control parameter so as to adjust the output signal to a target voltage value by adjusting the resistance value of the adjusting resistor.
The power supply control circuit in this embodiment is a specific hardware architecture for implementing the sound box control method in any one of the above embodiments, and the signal processing process thereof may specifically refer to the procedures of the sound box control method in the related embodiments.
The embodiment of the invention provides a sound box.
In an embodiment of the present invention, referring to fig. 5, the sound box includes: a processor 1001 (e.g., CPU), memory 1002, etc. The processor 1001 may be connected with the memory 1002 through a communication bus. The memory 1002 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). The memory 1002 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration of the device shown in fig. 5 is not intended to be limiting of the device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 5, a speaker control program may be included in the memory 1002 as a computer-readable storage medium. In the apparatus shown in fig. 5, the processor 1001 may be configured to call a sound box control program stored in the memory 1002, and perform operations of the steps related to the sound box control method in the above embodiment.
It is easy to understand that the sound box in this embodiment may also include the power supply control circuit in the above embodiment, so as to process the power supply signal according to the sound box control method in the above embodiment.
In addition, an embodiment of the present invention further provides a computer-readable storage medium, where a sound box control program is stored on the computer-readable storage medium, and when the sound box control program is executed by a processor, the sound box control program implements relevant steps of any embodiment of the sound box control method.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or system comprising the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solution of the present invention or the portions contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above and includes several instructions for enabling a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A sound box control method is characterized by comprising the following steps:
detecting an audio output signal of the loudspeaker box; the audio output signal is an audio signal to be played by a power amplifier in the loudspeaker box, and is obtained by carrying out signal acquisition on a signal input end of the power amplifier;
acquiring user setting parameters, and determining the power saving level required by a user according to the user setting parameters;
determining a target control parameter corresponding to the audio output signal according to the power saving level, and presetting a direct corresponding relation between the audio output signal and the target control parameter, or using the target voltage value as a corresponding relation between the audio output signal of an intermediate parameter and the target control parameter;
controlling a voltage regulating module to regulate a power supply signal of the sound box to a target voltage value corresponding to the audio output signal according to the target control parameter, wherein different audio output signals correspond to different target voltage values, and the larger the signal characteristic value of the audio output signal is, the larger the target voltage value corresponding to the corresponding target control parameter is; the smaller the signal characteristic value of the audio output signal is, the smaller the target voltage value corresponding to the corresponding target control parameter is.
2. The loudspeaker control method of claim 1, wherein the loudspeaker control method further comprises:
determining the magnitude relation between the signal characteristic value of the audio output signal and a set signal threshold;
and determining the target control parameter according to the size relation.
3. The loudspeaker box control method of claim 2, wherein the step of determining the target control parameter according to the magnitude relationship comprises:
when the signal characteristic value is larger than the set signal threshold value, determining the target control parameter as a first control parameter;
when the signal characteristic value is smaller than the set signal threshold value, determining the target control parameter as a second control parameter;
and the target voltage value corresponding to the first control parameter is greater than the target voltage value corresponding to the second control parameter.
4. The loudspeaker box control method according to any one of claims 1 to 3, wherein the voltage regulation module comprises a boost chip and a regulation resistor connected to a signal output terminal of the boost chip, an input terminal of the boost chip is connected to a power supply for providing the power supply signal, and the step of controlling the voltage regulation module to regulate the power supply signal of the loudspeaker box to a target voltage value corresponding to the audio output signal according to the target control parameter comprises:
controlling the boost chip to boost the power supply signal to a set voltage value to obtain an output signal;
and adjusting the resistance value of the adjusting resistor according to the target control parameter so as to adjust the output signal to the target voltage value.
5. The loudspeaker box control method of claim 4 wherein the step of adjusting the resistance of the tuning resistor according to the target control parameter comprises:
when the target control parameter is a first control parameter, adjusting the adjusting resistor to a first resistance value;
when the target control parameter is a second control parameter, adjusting the adjusting resistor to a second resistance value;
the target voltage value corresponding to the first control parameter is larger than the target voltage value corresponding to the second control parameter, and the first resistance value is larger than the second resistance value.
6. The loudspeaker box control method according to claim 5, wherein the adjusting resistor comprises a first resistor, a second resistor, a third resistor and a control switch, the first resistor is connected in series with the third resistor, one end of the first resistor connected in series with the third resistor is connected to the signal output end of the boost chip, the other end of the first resistor connected in series with the third resistor is grounded, the second resistor is connected in series with the control switch, and the second resistor connected in series with the control switch is connected in parallel with the first resistor;
when the target control parameter is a first control parameter, the step of adjusting the adjusting resistor to a first resistance value comprises:
when the target control parameter is the first control parameter, closing the control switch;
when the target control parameter is a second control parameter, the step of adjusting the adjusting resistor to a second resistance value comprises:
and when the target control parameter is the second control parameter, the control switch is switched off.
7. The method according to claim 6, wherein the first control parameter is a high level signal, and the step of closing the control switch when the target control parameter is the first control parameter comprises:
inputting a high level signal to the control switch to close the control switch;
the second control parameter is a low level signal, and the step of turning off the control switch when the target control parameter is the second control parameter includes:
and inputting a low level signal to the control switch to turn off the control switch.
8. The utility model provides a power supply control circuit, is applied to the audio amplifier, its characterized in that, power supply control circuit includes:
the detection module is used for detecting an audio output signal of the sound box; the audio output signal is an audio signal to be played by a power amplifier in the loudspeaker box, and is obtained by carrying out signal acquisition on a signal input end of the power amplifier;
the comparator is connected with the detection module, acquires user setting parameters, determines a power saving level required by a user according to the user setting parameters, determines corresponding target control parameters according to the audio output signals according to the power saving level, and presets a direct corresponding relation between the audio output signals and the target control parameters, or takes the target voltage value as a corresponding relation between the audio output signals of intermediate parameters and the target control parameters;
the voltage regulating module is connected with the comparator, connected with a power supply for providing a power supply signal, and used for regulating the power supply signal of the sound box to a target voltage value corresponding to the audio output signal according to the target control parameter, wherein different audio output signals correspond to different target voltage values, and the larger the signal characteristic value of the audio output signal is, the larger the target voltage value corresponding to the corresponding target control parameter is; the smaller the signal characteristic value of the audio output signal is, the smaller the target voltage value corresponding to the corresponding target control parameter is.
9. The power supply control circuit according to claim 8, wherein the voltage regulating module comprises a boost chip and a regulating resistor, an input end of the boost chip is connected with the power supply, the regulating resistor comprises a first resistor, a second resistor, a third resistor and a control switch, the first resistor is connected in series with the third resistor, one end of the first resistor connected in series with the third resistor is connected with a signal output end of the boost chip, the other end of the first resistor connected in series with the third resistor is grounded, the second resistor is connected in series with the control switch, and the second resistor connected in series with the control switch is connected in parallel with the first resistor;
the boosting chip is used for boosting the power supply signal to a set voltage value to obtain an output signal;
the control switch is used for being turned on or turned off according to the target control parameter so as to adjust the output signal to the target voltage value by adjusting the resistance value of the adjusting resistor.
10. An acoustic enclosure, comprising: memory, a processor and a loudspeaker control program stored on the memory and executable on the processor, the loudspeaker control program, when executed by the processor, implementing the steps of the loudspeaker control method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110211519.4A CN112995853B (en) | 2021-02-25 | 2021-02-25 | Sound box and control method and power supply control circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110211519.4A CN112995853B (en) | 2021-02-25 | 2021-02-25 | Sound box and control method and power supply control circuit thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112995853A CN112995853A (en) | 2021-06-18 |
| CN112995853B true CN112995853B (en) | 2023-01-20 |
Family
ID=76350649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110211519.4A Active CN112995853B (en) | 2021-02-25 | 2021-02-25 | Sound box and control method and power supply control circuit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112995853B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114281139B (en) * | 2021-12-14 | 2023-11-10 | 科大讯飞(苏州)科技有限公司 | Voltage regulation method of vehicle, voltage regulation circuit and electric vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105120398A (en) * | 2015-09-09 | 2015-12-02 | 海信集团有限公司 | Sound box and sound box system |
| CN111836164A (en) * | 2020-06-29 | 2020-10-27 | 上海艾为集成电路技术有限公司 | Boosting power supply method and circuit and audio device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333331B (en) * | 2014-11-10 | 2017-04-19 | 华勤通讯技术有限公司 | Power-supplying method and device of audio power-amplifying circuit and audio playing equipment |
| CN104469620B (en) * | 2014-11-24 | 2018-05-08 | 青岛歌尔声学科技有限公司 | A kind of sound output adjustable acoustic product on a large scale |
| CN106972736B (en) * | 2017-05-26 | 2023-06-30 | 深圳市乐得瑞科技有限公司 | Power supply adapting device, control method and device |
| CN108683979B (en) * | 2018-07-11 | 2020-11-17 | 深圳市东微智能科技股份有限公司 | Mute circuit and audio equipment |
| CN111836147B (en) * | 2019-04-16 | 2022-04-12 | 华为技术有限公司 | Noise reduction device and method |
-
2021
- 2021-02-25 CN CN202110211519.4A patent/CN112995853B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105120398A (en) * | 2015-09-09 | 2015-12-02 | 海信集团有限公司 | Sound box and sound box system |
| CN111836164A (en) * | 2020-06-29 | 2020-10-27 | 上海艾为集成电路技术有限公司 | Boosting power supply method and circuit and audio device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112995853A (en) | 2021-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104469620B (en) | A kind of sound output adjustable acoustic product on a large scale | |
| EP1499017B1 (en) | Electrical power supply | |
| US7315626B2 (en) | Hearing aid with performance-optimized power consumption for variable clock, supply voltage and DSP processing parameters | |
| US20150200640A1 (en) | Audio power amplification with reduced input power supply crest factor | |
| CN106125880A (en) | The method for controlling volume of a kind of intelligent terminal and device and storage medium | |
| CN109511041B (en) | Earphone starting setting method and device and earphone | |
| CN112995853B (en) | Sound box and control method and power supply control circuit thereof | |
| CN101299548A (en) | Power control apparatus, speaker apparatus and power control method | |
| CN109859729B (en) | Method and device for controlling waveform amplitude of audio | |
| CN107145323A (en) | A kind of method for controlling volume and device and terminal | |
| CN106101933B (en) | Volume adjusting method and device of power amplifier system | |
| CN112714382B (en) | Power self-adaptive circuit, control method and electronic equipment | |
| CN109582072B (en) | Control method and device and electronic equipment | |
| CN109491490B (en) | Control method and device and electronic equipment | |
| CN102158187B (en) | Signal processing circuit | |
| CN109542154B (en) | Control method and electronic equipment | |
| JP2008022510A (en) | Power amplifier | |
| US10693306B2 (en) | Circuit and musical instrument | |
| CN113507668A (en) | Variable-bandwidth intelligent control method, audio equipment and readable storage medium | |
| CN115051624B (en) | Signal acquisition circuit and camera equipment | |
| US9543908B2 (en) | Adaptive rail voltage regulation on power supplies | |
| CN113131547B (en) | Earphone charging method, earphone charging device and wireless earphone set | |
| CN109687690B (en) | Control method and device and electronic equipment | |
| CN217643163U (en) | Electronic device | |
| CN112882560B (en) | Power management method, power device, electronic apparatus, and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |