CN111614329A - Power amplifier, electronic equipment, voltage control method and device - Google Patents
Power amplifier, electronic equipment, voltage control method and device Download PDFInfo
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- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
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Abstract
The invention discloses a power amplifier, an electronic device, a voltage control method, a voltage control device and a computer readable storage medium, wherein the power amplifier comprises: the power supply comprises a control module, a switch module, a boosting module and a signal amplification module, wherein the input end of the switch module inputs power supply voltage, the boosting module comprises at least one boosting capacitor, and the boosting module is used for boosting the power supply voltage; the control module is connected with the switch module and controls the switch module to switch between a first state and a second state; when the switch module is in a first state, the output end of the switch module is connected with the first input end of the signal amplification module, and the signal amplification module performs signal amplification under the action of power supply voltage; when the switch module is in the second state, the output end is connected with the input end of the boosting module, the output end of the boosting module is connected with the second input end of the signal amplification module, and the signal amplification module performs signal amplification under the action of the boosted power supply voltage, so that the tone quality is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a power amplifier, an electronic device, a voltage control method, a voltage control apparatus, and a computer-readable storage medium.
Background
At present, the electronic device may adopt a dual speaker design, and the dual speaker may play audio at a higher volume or play audio at a lower volume in different working states of the electronic device. Taking a smart phone as an example, a speaker can be designed at the bottom of the smart phone, a receiver is arranged at the top of the smart phone, the speaker and the receiver can be understood as a dual speaker, when the smart phone is in a call state, the dual speaker can play audio at a lower volume, and when the smart phone is in a state of playing multimedia files, the dual speaker can play audio at a higher volume.
Generally, the two speakers may respectively correspond to a power amplifier, the power amplifier may amplify an electrical signal in the electronic device, output the amplified electrical signal to the two speakers, and convert the electrical signal into a sound signal for playing. The power amplifier often comprises a boosting module, the boosting module comprises a boosting capacitor, and the boosting capacitor in the boosting module can boost the power supply voltage to ensure the stability of signal amplification. However, in actual operation, the boost capacitor generates capacitive sound, which causes noise in the audio played by the speaker, and the capacitive sound seriously affects the sound quality during audio playing.
Disclosure of Invention
The embodiment of the invention provides a power amplifier, an electronic device, a voltage control method, a voltage control device and a computer readable storage medium, which are used for solving the problem that in the power amplifier corresponding to a loudspeaker of the electronic device, a boost capacitor in a boost module during working can generate capacitance sound to influence the tone quality of audio played by the loudspeaker.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, a power amplifier is provided, including: the power supply comprises a control module, a switch module, a boosting module and a signal amplification module, wherein the input end of the switch module inputs power supply voltage, the boosting module comprises at least one boosting capacitor, and the boosting module is used for boosting the power supply voltage;
the control module is connected with the switch module, and the switch module is switched between a first state and a second state under the control of the control module;
when the switch module is in a first state, the output end of the switch module is connected with the first input end of the signal amplification module, and the signal amplification module performs signal amplification under the action of the power supply voltage;
when the switch module is in the second state, the output end of the switch module is connected with the input end of the boosting module, the output end of the boosting module is connected with the second input end of the signal amplification module, and the signal amplification module amplifies signals under the action of the boosted power supply voltage.
In a second aspect, an electronic device is provided, comprising the power amplifier described above.
In a third aspect, a voltage control method based on the power amplifier is provided, including:
the electronic equipment determines the current working state, wherein the working state comprises a first working state and a second working state;
if the electronic equipment is in the first working state, controlling the switch module to be switched to the first state;
and if the electronic equipment is in the second working state, controlling the switch module to be switched to the second state.
In a fourth aspect, a voltage control device based on the power amplifier is provided, which includes:
the determining module is used for determining the current working state of the electronic equipment, wherein the working state comprises a first working state and a second working state;
the first control module is used for controlling the switch module to be switched to the first state if the electronic equipment is in the first working state;
and the second control module is used for controlling the switch module to be switched to the second state if the electronic equipment is in the second working state.
In a fifth aspect, an electronic device is provided, comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to the third aspect.
A sixth aspect provides a computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method according to the third aspect.
The power amplifier comprises a control module, a boosting module and a signal amplification module, wherein a switch module is added on the basis of the control module, the input end of the switch module inputs power supply voltage, the control module controls the switch module to be switched between a first state and a second state, the output end of the switch module is connected with the first input end of the signal amplification module in the first state, the output end of the switch module is connected with the input end of the boosting module in the second state, and the output end of the boosting module is connected with the second input end of the signal amplification module. Like this, when need not stepping up mains voltage, for example during low volume output, can control switch module and switch to first state for mains voltage directly supplies the pressure for signal amplification module, need not to be stepped up by the module that steps up, and the module that steps up is in unoperated state promptly, thereby can avoid the electric capacity that steps up in the module that steps up to produce the electric capacity sound, makes follow-up speaker when the broadcast audio frequency, can avoid the electric capacity sound to the interference of audio frequency, promotes tone quality.
In addition, when the power supply voltage needs to be boosted, for example, when high-volume output is performed, the switch module can be controlled to be in the second state, so that the boosting module can boost the power supply voltage, and the boosting requirement is met.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of a power amplifier according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a power amplifier according to an embodiment of the present invention;
FIG. 3 is a flow chart of a voltage control method according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an electronic device according to an embodiment of the invention;
fig. 5 is a schematic diagram of a hardware structure of an electronic device implementing various embodiments of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a power amplifier according to an embodiment of the present invention. As shown in fig. 1, the power amplifier may include: the device comprises a control module, a switch module, a boosting module and a signal amplification module.
In fig. 1, the switch module may include an input terminal and an output terminal, the boost module may include an input terminal and an output terminal, and the boost module may include at least one boost capacitor therein, and the signal amplification module may include a first input terminal, a second input terminal, and an output terminal, wherein:
the control module is connected with the switch module, and under the control of the control module, the switch module can be switched between a first state and a second state, wherein, the input end of the switch module inputs power supply voltage, and according to the different states of the switch module, the output end of the switch module can be connected with the input end of the boosting module or the first input end of the signal amplification module, and the output end of the boosting module is connected with the second input end of the signal amplification module.
Wherein, mains voltage is used for supplying the pressure for signal amplification module, specifically, when electronic equipment needs low volume output, mains voltage can directly supply the pressure for signal amplification module, need not boost to mains voltage promptly, when electronic equipment needs high volume output, can boost to mains voltage, supplies the pressure for signal amplification module by the mains voltage after stepping up.
The signal amplification module can amplify the signal under the action of the power supply voltage or the boosted power supply voltage and output the amplified signal, and at least one boosting capacitor included in the boosting module is used for boosting the power supply voltage when the boosting module is in a working state.
Like this, when need not stepping up mains voltage, for example during low volume output, can control switch module and switch to first state for mains voltage directly supplies the pressure for signal amplification module, need not to be stepped up by the module that steps up, and the module that steps up is in unoperated state promptly, thereby can avoid the electric capacity that steps up in the module that steps up to produce the electric capacity sound, makes follow-up speaker when the broadcast audio frequency, can avoid the electric capacity sound to the interference of audio frequency, promotes tone quality.
In addition, when the power supply voltage needs to be boosted, for example, when high-volume output is performed, the switch module can be controlled to be in the second state, so that the boosting module can boost the power supply voltage, and the boosting requirement is met.
In an implementation manner, in order to facilitate connection between the output end of the switch module and the first input end of the signal amplification module or the input end of the boost module, a single-pole double-throw switch may be included in the switch module, where a specific structure of the switch module may refer to fig. 2.
In fig. 2, the single-pole double-throw switch includes a common terminal, a second terminal and a third terminal, wherein the common terminal of the single-pole double-throw switch is an input terminal of the switch module, the second terminal is connected to the first input terminal of the signal amplification module, and the third terminal is connected to the input terminal of the boost module.
Based on the switch module shown in fig. 2, when the control module controls the switch module to switch to the first state, the common terminal of the single-pole double-throw switch is controlled to be connected with the second terminal, and when the control module controls the switch module to switch to the second state, the common terminal of the single-pole double-throw switch is controlled to be connected with the third terminal.
In this embodiment, the control module may control the switch module to switch to the first state when the electronic device is in the first operating state, an output end of the switch module is connected to a first input end of the signal amplification module, and the signal amplification module may amplify the first electrical signal in the first operating state under the action of the power voltage, where the voltage boost module is in the non-operating state.
It should be noted that the electronic device in the first working state may be understood as a state when the electronic device is in an output scene requiring low volume, at this time, the control module may switch the switch module to the first state, specifically, the first working state may include a call state, and the first electrical signal may include an electrical signal generated in the electronic device during a call.
When electronic equipment is in the conversation state, can produce first signal of telecommunication among the electronic equipment, because under the conversation state, the speaker need be with lower volume audio frequency of putting outward, need not step up, and the electric capacity that steps up in the boost module can produce electric capacity sound, can produce miscellaneous sound in the audio frequency that leads to putting outward, consequently, control module can control switch module and switch into first state, signal amplification module can amplify first signal of telecommunication under mains voltage's effect, afterwards, can be with the first signal of telecommunication output after the enlargeing for the speaker, the speaker can be with the first signal of telecommunication after the enlargeing convert into sound signal, and play sound signal with the form of audio frequency.
For the boost module, when the switch module is in the first state, the boost module is in the non-working state, that is to say, the boost capacitor in the boost module does not work, therefore, the boost capacitor in the boost module can not produce the electric capacity sound, thereby can avoid producing the noise in the audio frequency that the speaker broadcast.
The control module can control the switch module to switch to the second state under the condition that the electronic equipment is in the second working state, the output end of the switch module is connected with the input end of the boosting module, the boosting module boosts the power supply voltage based on at least one boosting capacitor and outputs the boosted power supply voltage to the second input end of the signal amplification module, and the signal amplification module amplifies a second electric signal in the second working state under the action of the boosted power supply voltage.
It should be noted that the electronic device in the second working state may be understood as a state when the electronic device is in an output scene requiring high volume, at this time, the control module may switch the switch module to the second state, specifically, the second working state may include a state of playing a multimedia file, and the second electrical signal may include an electrical signal generated in the electronic device when the multimedia file is played.
When the electronic device is in a state of playing the multimedia file, the electronic device may generate a second electrical signal, and since the audio needs to be played at a higher volume in the state of playing the multimedia file, the voltage boosting module is required to boost the power supply voltage. The control module can control the output of switch module and be connected with the input of Boost module, the Boost module boosts mains voltage based on at least one Boost electric capacity, concretely, can also include Boost circuit (Boost circuit) among the Boost module, can Boost mains voltage based on the boosts circuit, and export the second input of the mains voltage after boosting to the signal amplification module, the second signal of telecommunication under the state of broadcast multimedia file is enlargied to the signal amplification module under the effect of the mains voltage after boosting, afterwards, can export the second signal of telecommunication after amplifying for the speaker, the speaker can turn into the sound signal with the second signal of telecommunication after amplifying, and broadcast the sound signal with the form of audio frequency.
It should be noted that, under the condition that the boost module is in the operating state, the boost capacitor in the boost module may generate capacitive sound, which may cause noise in the audio played by the speaker, but because the volume of the audio playing the multimedia file is high, the influence of the capacitive sound generated by the boost capacitor on the audio playing the multimedia file may be negligible.
In this embodiment, when the electronic device is in the first operating state or the second operating state, a digital audio signal may be generated in the electronic device, and since the digital audio signal is a digital signal, the signal amplification module may not directly amplify a signal based on the digital audio signal, therefore, the power amplifier may include a digital processing module, the digital processing module may be connected to the signal amplification module, the digital processing module may process the digital audio signal, and after processing the digital audio signal, the processed signal may be output to the signal amplifier.
Specifically, the digital processing module may process a digital audio signal generated by the electronic device in a first operating state, convert the digital audio signal into an analog signal, obtain a first electrical signal, output the first electrical signal to the signal amplification module, and amplify the first electrical signal by the signal amplification module.
The digital processing module can also process digital audio signals generated by the electronic equipment in a second working state, the digital audio signals are converted into analog signals, so that second electric signals are obtained, the second electric signals are output to the signal amplification module, and the signal amplification module can amplify the second electric signals.
Optionally, the output end of the signal amplification module may be connected to a speaker, the signal amplification module may input the amplified signal to the speaker, and the speaker may convert the amplified signal into a sound signal and play the sound signal in the form of audio.
Specifically, when the electronic device is in a call state, the signal amplification module amplifies an electric signal generated in the electronic device during the call under the action of the power voltage, and then inputs the amplified electric signal to the loudspeaker, and the loudspeaker can convert the amplified electric signal into a sound signal and play the sound signal in an audio mode, so that the call is realized.
When the electronic equipment is in a state of playing the multimedia file, the signal amplification module amplifies an electric signal generated in the electronic equipment when the multimedia file is played under the action of the boosted power supply voltage, and then inputs the amplified electric signal to the loudspeaker, and the loudspeaker can convert the amplified electric signal into a sound signal and play the sound signal in an audio mode, so that the multimedia file is played.
The speaker may be any one of two speakers included in the electronic device, and taking the smart phone as an example, the speaker may be a speaker (horn) disposed at the bottom of the smart phone, or a receiver (receiver) disposed at the top of the smart phone.
The power amplifier comprises a control module, a boosting module and a signal amplification module, wherein a switch module is added on the basis of the control module, the input end of the switch module inputs power supply voltage, the control module controls the switch module to be switched between a first state and a second state, the output end of the switch module is connected with the first input end of the signal amplification module in the first state, the output end of the switch module is connected with the input end of the boosting module in the second state, and the output end of the boosting module is connected with the second input end of the signal amplification module. Like this, when need not stepping up mains voltage, for example during low volume output, can control switch module and switch to first state for mains voltage directly supplies the pressure for signal amplification module, need not to be stepped up by the module that steps up, and the module that steps up is in unoperated state promptly, thereby can avoid the electric capacity that steps up in the module that steps up to produce the electric capacity sound, makes follow-up speaker when the broadcast audio frequency, can avoid the electric capacity sound to the interference of audio frequency, promotes tone quality.
In addition, when the power supply voltage needs to be boosted, for example, when high-volume output is performed, the switch module can be controlled to be in the second state, so that the boosting module can boost the power supply voltage, and the boosting requirement is met.
The embodiment of the invention also provides electronic equipment, and the electronic equipment comprises the power amplifier.
Specifically, the electronic device may include two power amplifiers as described above, where the two power amplifiers may correspond to dual speakers included in the electronic device, and taking a smart phone as an example, one power amplifier may correspond to a speaker disposed at the bottom of the smart phone, and the other power amplifier may correspond to a receiver disposed at the top of the smart phone.
The embodiment of the invention also provides a voltage control method based on the power amplifier, wherein fig. 3 is a schematic flow chart of the voltage control method according to the embodiment of the invention. The method is as follows.
S302: the electronic equipment determines the current working state, wherein the working state comprises a first working state and a second working state.
In S302, the electronic device may determine a current working state, where the working state may include a first working state and a second working state, where the first working state includes a call state, and the second working state includes a state of playing a multimedia file.
S304: and if the electronic equipment is in the first working state, controlling the switch module to be switched to the first state.
In S304, if it is determined that the electronic device is in the first working state, the electronic device may control the switch module to switch to the first state through the control module, so that the output end of the switch module is connected to the first input end of the signal amplification module, where the input end of the switch module may input a power voltage, and the signal amplification module may amplify the first electrical signal in the first working state under the action of the power voltage. The amplified first electrical signal may then be output to a speaker, and the speaker may convert the amplified first electrical signal into a sound signal and play the sound signal in the form of audio.
It should be noted that, when the switch module is in the first state, the boost module may be in a non-operating state, and the boost capacitor in the boost module may not generate capacitive sound, so as to avoid generating noise in the audio played by the speaker.
S306: and if the electronic equipment is in the second working state, controlling the switch module to be switched to the second state.
In S306, if it is determined that the electronic device is in the second operating state, then, the electronic device may control the switch module to switch to the second operating state through the control module, so that the output end of the switch module is connected to the input end of the voltage boosting module, the voltage boosting module may boost the power supply voltage, and output the boosted power supply voltage to the second input end of the signal amplification module, and thus, the signal amplification module may amplify the second electrical signal in the second operating state under the action of the boosted power supply voltage. The amplified second electrical signal may then be output to a speaker, and the speaker may convert the amplified second electrical signal into a sound signal and play the sound signal in the form of audio.
The power amplifier comprises a control module, a boosting module and a signal amplification module, wherein a switch module is added on the basis of the control module, the input end of the switch module inputs power supply voltage, the control module controls the switch module to be switched between a first state and a second state, the output end of the switch module is connected with the first input end of the signal amplification module in the first state, the output end of the switch module is connected with the input end of the boosting module in the second state, and the output end of the boosting module is connected with the second input end of the signal amplification module. Like this, when need not stepping up mains voltage, for example during low volume output, can control switch module and switch to first state for mains voltage directly supplies the pressure for signal amplification module, need not to be stepped up by the module that steps up, and the module that steps up is in unoperated state promptly, thereby can avoid the electric capacity that steps up in the module that steps up to produce the electric capacity sound, makes follow-up speaker when the broadcast audio frequency, can avoid the electric capacity sound to the interference of audio frequency, promotes tone quality.
In addition, when the power supply voltage needs to be boosted, for example, when high-volume output is performed, the switch module can be controlled to be in the second state, so that the boosting module can boost the power supply voltage, and the boosting requirement is met.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. The electronic device includes: a determination module 41, a first control module 42, a second control module 43, wherein:
the determining module 41 is configured to determine a current working state of the electronic device, where the working state includes a first working state and a second working state;
the first control module 42, if the electronic device is in the first working state, controls the switch module to switch to the first state;
and a second control module 43, configured to control the switch module to switch to the second state if the electronic device is in the second working state.
The electronic device provided in the embodiment of the present invention can implement each process implemented by the electronic device in the method embodiment of fig. 3, and is not described herein again to avoid repetition. Like this, when need not stepping up mains voltage, for example during low volume output, can control switch module and switch to first state for mains voltage directly supplies the pressure for signal amplification module, need not to be stepped up by the module that steps up, and the module that steps up is in unoperated state promptly, thereby can avoid the electric capacity that steps up in the module that steps up to produce the electric capacity sound, makes follow-up speaker when the broadcast audio frequency, can avoid the electric capacity sound to the interference of audio frequency, promotes tone quality.
In addition, when the power supply voltage needs to be boosted, for example, when high-volume output is performed, the switch module can be controlled to be in the second state, so that the boosting module can boost the power supply voltage, and the boosting requirement is met.
Figure 5 is a schematic diagram of a hardware configuration of an electronic device implementing various embodiments of the invention,
the electronic device 500 includes, but is not limited to: radio frequency unit 505, network module 502, audio output unit 503, input unit 504, sensor 505, display unit 506, user input unit 507, interface unit 508, memory 509, processor 510, and power supply 511. Those skilled in the art will appreciate that the electronic device configuration shown in fig. 1 does not constitute a limitation of the electronic device, and that the electronic device may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the electronic device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The processor 510 is configured to determine a current working state of the electronic device, where the working state includes a first working state and a second working state; if the electronic equipment is in the first working state, switching to the first state; and if the electronic equipment is in the second working state, switching to the second state.
Like this, when need not stepping up mains voltage, for example during low volume output, can control switch module and switch to first state for mains voltage directly supplies the pressure for signal amplification module, need not to be stepped up by the module that steps up, and the module that steps up is in unoperated state promptly, thereby can avoid the electric capacity that steps up in the module that steps up to produce the electric capacity sound, makes follow-up speaker when the broadcast audio frequency, can avoid the electric capacity sound to the interference of audio frequency, promotes tone quality.
In addition, when the power supply voltage needs to be boosted, for example, when high-volume output is performed, the switch module can be controlled to be in the second state, so that the boosting module can boost the power supply voltage, and the boosting requirement is met.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 501 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 510; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 501 can also communicate with a network and other devices through a wireless communication system.
The electronic device provides wireless broadband internet access to the user via the network module 502, such as assisting the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.
The audio output unit 503 may convert audio data received by the radio frequency unit 501 or the network module 502 or stored in the memory 509 into an audio signal and output as sound. Also, the audio output unit 503 may also provide audio output related to a specific function performed by the electronic apparatus 500 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 503 includes a speaker, a buzzer, a receiver, and the like.
The input unit 504 is used to receive an audio or video signal. The input Unit 504 may include a Graphics Processing Unit (GPU) 5045 and a microphone 5042, and the Graphics processor 5041 processes image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 506. The image frames processed by the graphic processor 5041 may be stored in the memory 509 (or other storage medium) or transmitted via the radio frequency unit 501 or the network module 502. The microphone 5042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 501 in case of the phone call mode.
The electronic device 500 also includes at least one sensor 505, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 5061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 5061 and/or a backlight when the electronic device 500 is moved to the ear. As one type of motion sensor, an accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of an electronic device (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 505 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 506 is used to display information input by the user or information provided to the user. The Display unit 506 may include a Display panel 5061, and the Display panel 5061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 507 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the electronic device. Specifically, the user input unit 507 includes a touch panel 5071 and other input devices 5072. Touch panel 5071, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., operations by a user on or near touch panel 5071 using a finger, stylus, or any suitable object or attachment). The touch panel 5071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 510, and receives and executes commands sent by the processor 510. In addition, the touch panel 5071 may be implemented in various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 5071, the user input unit 507 may include other input devices 5072. In particular, other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
Further, the touch panel 5071 may be overlaid on the display panel 5061, and when the touch panel 5071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 510 to determine the type of the touch event, and then the processor 510 provides a corresponding visual output on the display panel 5061 according to the type of the touch event. Although in fig. 5, the touch panel 5071 and the display panel 5061 are two independent components to implement the input and output functions of the electronic device, in some embodiments, the touch panel 5071 and the display panel 5061 may be integrated to implement the input and output functions of the electronic device, and is not limited herein.
The interface unit 508 is an interface for connecting an external device to the electronic apparatus 500. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 508 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the electronic apparatus 500 or may be used to transmit data between the electronic apparatus 500 and external devices.
The memory 509 may be used to store software programs as well as various data. The memory 509 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 509 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
The processor 510 is a control center of the electronic device, connects various parts of the whole electronic device by using various interfaces and lines, performs various functions of the electronic device and processes data by running or executing software programs and/or modules stored in the memory 509 and calling data stored in the memory 509, thereby performing overall monitoring of the electronic device. Processor 510 may include one or more processing units; preferably, the processor 510 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 510.
The electronic device 500 may further include a power supply 511 (e.g., a battery) for supplying power to various components, and preferably, the power supply 511 may be logically connected to the processor 510 via a power management system, so as to implement functions of managing charging, discharging, and power consumption via the power management system.
In addition, the electronic device 500 includes some functional modules that are not shown, and are not described in detail herein.
Preferably, an embodiment of the present invention further provides an electronic device, which includes a processor 510, a memory 509, and a computer program that is stored in the memory 509 and can be run on the processor 510, and when the computer program is executed by the processor 510, the processes of the voltage control method embodiment are implemented, and the same technical effect can be achieved, and in order to avoid repetition, details are not described here again.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the voltage control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
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 apparatus 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 apparatus. The term "comprising" is used to specify the presence of stated features, integers, steps, operations, elements, components, operations.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention 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) and includes instructions for enabling a terminal (such as 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.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A power amplifier, comprising: the power supply comprises a control module, a switch module, a boosting module and a signal amplification module, wherein the input end of the switch module inputs power supply voltage, the boosting module comprises at least one boosting capacitor, and the boosting module is used for boosting the power supply voltage;
the control module is connected with the switch module, and the switch module is switched between a first state and a second state under the control of the control module;
when the switch module is in a first state, the output end of the switch module is connected with the first input end of the signal amplification module, and the signal amplification module performs signal amplification under the action of the power supply voltage;
when the switch module is in the second state, the output end of the switch module is connected with the input end of the boosting module, the output end of the boosting module is connected with the second input end of the signal amplification module, and the signal amplification module amplifies signals under the action of the boosted power supply voltage.
2. The power amplifier of claim 1,
the switch module comprises a single-pole double-throw switch, the common end of the single-pole double-throw switch is the input end of the switch module, the second end of the single-pole double-throw switch is connected with the first input end of the signal amplification module, and the third end of the single-pole double-throw switch is connected with the input end of the boosting module.
3. The power amplifier of claim 1,
the control module controls the switch module to be switched to a first state under a first working state of the electronic equipment, the signal amplification module amplifies a first electric signal under the first working state under the action of the power supply voltage, and the boosting module is in a non-working state;
the control module controls the switch module to switch to the second state in the second working state of the electronic device, the boosting module boosts the power supply voltage and outputs the boosted power supply voltage to the second input end of the signal amplification module, and the signal amplification module amplifies a second electric signal in the second working state under the action of the boosted power supply voltage.
4. The power amplifier of claim 3,
the first working state comprises a call state, and the first electric signal comprises an electric signal generated in the electronic equipment during call;
the second operating state includes a state of playing a multimedia file, and the second electrical signal includes an electrical signal generated in the electronic device when the multimedia file is played.
5. The power amplifier of claim 1, further comprising a digital processing module, wherein:
the digital processing module is connected with the signal amplification module, and the signal amplification module is used for amplifying signals after the digital processing module processes digital audio signals.
6. The power amplifier of claim 1,
the output end of the signal amplification module is connected with a loudspeaker, the signal amplification module inputs the amplified signal to the loudspeaker, and the loudspeaker converts the amplified signal into a sound signal.
7. An electronic device comprising a power amplifier according to any one of claims 1 to 6.
8. A voltage control method based on the power amplifier of any one of claims 1 to 6, comprising:
the electronic equipment determines the current working state, wherein the working state comprises a first working state and a second working state;
if the electronic equipment is in the first working state, controlling the switch module to be switched to the first state;
and if the electronic equipment is in the second working state, controlling the switch module to be switched to the second state.
9. A voltage control device based on the power amplifier of any one of claims 1 to 6, comprising:
the determining module is used for determining the current working state of the electronic equipment, wherein the working state comprises a first working state and a second working state;
the first control module is used for controlling the switch module to be switched to the first state if the electronic equipment is in the first working state;
and the second control module is used for controlling the switch module to be switched to the second state if the electronic equipment is in the second working state.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method as claimed in claim 8.
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| CN202010396296.9A CN111614329B (en) | 2020-05-11 | 2020-05-11 | Power amplifier, electronic equipment, voltage control method and device |
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| CN202010396296.9A CN111614329B (en) | 2020-05-11 | 2020-05-11 | Power amplifier, electronic equipment, voltage control method and device |
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| CN112672254A (en) * | 2020-12-24 | 2021-04-16 | Oppo广东移动通信有限公司 | Audio signal adjusting device and electronic equipment |
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| CN111614329B (en) | 2024-04-19 |
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