CN215072949U - Audio system - Google Patents
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- CN215072949U CN215072949U CN202120789309.9U CN202120789309U CN215072949U CN 215072949 U CN215072949 U CN 215072949U CN 202120789309 U CN202120789309 U CN 202120789309U CN 215072949 U CN215072949 U CN 215072949U
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Abstract
The application discloses an audio system, which comprises an audio generation part and an audio playing part, wherein the audio generation part is in communication connection with the audio playing part; the audio generation part comprises an audio generation main board, a first area of the surface of the audio generation main board is provided with a digital ground, a second area of the surface of the audio generation main board is provided with a first analog ground, the digital ground and the first analog ground are connected through a first signal wire at a target position, and the target position is the position of a digital-to-analog conversion component on the audio generation main board; the audio generating main board also comprises an audio generating circuit used for generating audio signals; the audio playing part comprises a power amplifier mainboard and a loudspeaker, the power amplifier mainboard comprises a power amplifier chip, and the power amplifier chip is used for amplifying the power of the audio signal generated by the audio generating circuit; the speaker is used for playing the audio signal which is subjected to power amplification. Therefore, the background noise can be reduced, and the audio playing quality can be improved.
Description
Technical Field
The present application relates to the field of audio technology, and more particularly, to an audio system.
Background
With the improvement of the living standard of the user, the user pays more and more attention to the enjoyment of the mental level. For example, the user may choose to play his favorite audio to relax mood. In playing audio, an audio source and a playback source may be involved. The audio source can be an industrial personal computer, and the playing source can be power amplifier equipment with a loudspeaker. In the prior art, a speaker of a power amplifier device may generate a strong background noise, i.e., a background noise, when playing an audio. For example, a split end sound may occur when audio is played. The presence of strong background noise can result in poor audio playback quality.
SUMMERY OF THE UTILITY MODEL
The utility model provides an audio system to the speaker of the power amplifier equipment who exists among the solution prior art can produce stronger end noise when the broadcast audio frequency, can lead to the technical problem of audio playback quality variation.
In a first aspect, the present invention provides an audio system, which comprises an audio generating part and an audio playing part, wherein the audio generating part is in communication connection with the audio playing part;
the audio generation part comprises an audio generation main board, a first area of the surface of the audio generation main board is provided with a digital ground, a second area of the surface of the audio generation main board is provided with a first analog ground, the digital ground and the first analog ground are connected through a first signal wire at a target position, and the target position is a position where a digital-to-analog conversion component on the audio generation main board is located;
the audio generation mainboard also comprises an audio generation circuit used for generating audio signals;
the audio playing part comprises a power amplifier mainboard and a loudspeaker, the power amplifier mainboard comprises a power amplifier chip, and the power amplifier chip is used for amplifying the power of the audio signal generated by the audio generating circuit;
the loudspeaker is used for playing the audio signal subjected to power amplification.
Optionally, a third area on the surface of the power amplifier motherboard is provided with a second analog ground, a fourth area on the surface of the power amplifier motherboard is provided with a power ground, the second analog ground and the power ground are connected through a parallel resistor-capacitor, the parallel resistor-capacitor includes a resistor and a capacitor, and the resistor and the capacitor are connected in parallel.
Optionally, the audio system further includes a power supply portion, where the power supply portion is used to supply power to the audio generation portion and the audio playing portion;
the installation position of the parallel resistor-capacitor is a position between the second analog ground and the power ground and the position which enables the path through which the supply current of the power supply part passes to be shortest.
Optionally, the audio generating part, the audio playing part and the power supply part are all disposed in the audio system.
Optionally, the audio system includes an audio generating device and an audio playing device;
the audio generating apparatus includes the audio generating portion and a first power supplying portion for supplying power to the audio generating portion;
the audio playing device comprises the audio playing part and a second power supply part, and the second power supply part is used for supplying power to the audio playing part.
Optionally, the resistance range of the resistor is 5 ohm to 20 ohm.
Optionally, the capacitance value range of the capacitor is 0.5 microfarad to 2 microfarad.
Optionally, the resistance value of the resistor is 10 ohms.
Optionally, the capacitance value of the capacitor is 1 microfarad.
According to the above technical solution, an embodiment of the present invention provides an audio system, which includes an audio generating portion and an audio playing portion, wherein the audio generating portion is in communication connection with the audio playing portion; the audio generation part comprises an audio generation main board, a first area of the surface of the audio generation main board is provided with a digital ground, a second area of the surface of the audio generation main board is provided with a first analog ground, the digital ground and the first analog ground are connected through a first signal wire at a target position, and the target position is a position where a digital-to-analog conversion component on the audio generation main board is located; the audio generation mainboard also comprises an audio generation circuit used for generating audio signals; the audio playing part comprises a power amplifier mainboard and a loudspeaker, the power amplifier mainboard comprises a power amplifier chip, and the power amplifier chip is used for amplifying the power of the audio signal generated by the audio generating circuit; the loudspeaker is used for playing the audio signal subjected to power amplification. In this way, the digital ground and the first analog ground may be provided in a sub-region of the surface of the audio-generating main board, and the digital ground and the first analog ground may be connected at the target position by the first signal line. The target position is the position of a digital-to-analog conversion component on the audio generation mainboard. The method can reduce the background noise and improve the audio playing quality.
Drawings
Fig. 1 is a schematic diagram of an audio generation motherboard according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a power amplifier motherboard according to an embodiment of the present application.
Detailed Description
In order to better understand the technical solutions provided by the embodiments of the present specification, the technical solutions of the embodiments of the present specification are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present specification are detailed descriptions of the technical solutions of the embodiments of the present specification, and are not limitations on the technical solutions of the embodiments of the present specification, and the technical features in the embodiments and examples of the present specification may be combined with each other without conflict.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The term "two or more" includes the case of two or more.
The utility model provides an audio system, which comprises an audio generation part and an audio playing part, wherein the audio generation part is in communication connection with the audio playing part;
the audio generation part comprises an audio generation main board, a first area of the surface of the audio generation main board is provided with a digital ground, a second area of the surface of the audio generation main board is provided with a first analog ground, the digital ground and the first analog ground are connected through a first signal wire at a target position, and the target position is a position where a digital-to-analog conversion component on the audio generation main board is located;
the audio generation mainboard also comprises an audio generation circuit used for generating audio signals;
the audio playing part comprises a power amplifier mainboard and a loudspeaker, the power amplifier mainboard comprises a power amplifier chip, and the power amplifier chip is used for amplifying the power of the audio signal generated by the audio generating circuit;
the loudspeaker is used for playing the audio signal subjected to power amplification.
In particular embodiments, the audio system may include an audio producing portion and an audio playing portion, which may be communicatively coupled. The audio generation portion may include an audio generation main board, a first area of a surface of the audio generation main board may be provided with a digital ground, and a second area of the surface of the audio generation main board may be provided with a first analog ground. The digital ground and the first analog ground may be connected at the target location by a first signal line. The target position may be a position where a digital-to-analog conversion component on the audio generation motherboard is located. The audio-generating motherboard may also contain audio-generating circuitry for generating audio signals. Furthermore, the audio generating main board can be connected with an audio output component, and the audio output component is used for outputting the audio signal generated by the audio generating circuit. Fig. 1 is a schematic diagram of an audio-generating main board. In fig. 1, the area to the left of the polyline is the digital ground, and the area to the right of the polyline is the first analog ground. In this way, the digital ground and the first analog ground may be provided in a sub-region of the surface of the audio-generating main board, and the digital ground and the first analog ground may be connected at the target position by the first signal line. The target position is the position of a digital-to-analog conversion component on the audio generation mainboard. The method can reduce the background noise and improve the audio playing quality.
The audio playing part can comprise a power amplifier mainboard and a loudspeaker, the power amplifier mainboard can comprise a power amplifier chip, and the power amplifier chip is used for amplifying the power of the audio signal generated by the audio generating circuit. The speaker is used for playing the audio signal which is subjected to power amplification.
Optionally, a third area on the surface of the power amplifier motherboard is provided with a second analog ground, a fourth area on the surface of the power amplifier motherboard is provided with a power ground, the second analog ground and the power ground are connected through a parallel resistor-capacitor, the parallel resistor-capacitor includes a resistor and a capacitor, and the resistor and the capacitor are connected in parallel.
In a specific embodiment, a third area on the surface of the power amplifier main board may be provided with a second analog ground, a fourth area on the surface of the power amplifier main board may be provided with a power ground, and the second analog ground and the power ground may be connected through a parallel resistor-capacitor. The parallel resistor-capacitor can comprise a resistor R and a capacitor C, and the resistor R and the capacitor C are connected in parallel. Fig. 2 is a schematic diagram of a power amplifier motherboard. In fig. 2, the area to the left of the polyline is the second analog ground, and the area to the right of the polyline is the power ground. The power amplifier mainboard can also be connected with the audio input component. The audio input section is for receiving an audio signal output by the audio generating section. Therefore, the surface of the power amplifier mainboard can be provided with a second analog ground and a power ground in different areas, the second analog ground and the power ground can be connected through the parallel resistance-capacitance, and the capacitor C contained by the parallel resistance-capacitance can filter high-frequency noise. The method can reduce the background noise and improve the audio playing quality.
Optionally, the audio system further includes a power supply portion, where the power supply portion is used to supply power to the audio generation portion and the audio playing portion;
the installation position of the parallel resistor-capacitor is a position between the second analog ground and the power ground and the position which enables the path through which the supply current of the power supply part passes to be shortest.
In a specific embodiment, the audio system may further include a power supply portion for supplying power to the audio generating portion and the audio playing portion. The installation position of the parallel resistance-capacitance is a position between the second analog ground and the power ground and the position which enables the path through which the power supply current of the power supply part passes to be shortest. Therefore, the installation position of the parallel resistance-capacitance is between the second analog ground and the power ground, and the position of the shortest path of the power supply current of the power supply part is made.
Optionally, the audio generating part, the audio playing part and the power supply part are all disposed in the audio system.
In a particular embodiment, the audio generation portion, the audio playback portion, and the power supply portion may all be disposed within the audio system. The audio generating section and the audio playing section may be connected through an audio signal line at this time. Therefore, the audio generation part, the audio playing part and the power supply part can be arranged in the same audio system, namely in the same device, and the device cost can be saved.
Optionally, the audio system includes an audio generating device and an audio playing device;
the audio generating apparatus includes the audio generating portion and a first power supplying portion for supplying power to the audio generating portion;
the audio playing device comprises the audio playing part and a second power supply part, and the second power supply part is used for supplying power to the audio playing part.
In particular embodiments, an audio system may include an audio producing device and an audio playing device. The audio generating apparatus may include an audio generating portion and a first power supplying portion for supplying power to the audio generating portion; the audio playing device can comprise an audio playing part and a second power supply part, wherein the second power supply part is used for supplying power to the audio playing part. The audio generating device and the audio playing device can communicate in a wired or wireless manner. Thus, the audio system can comprise an audio generating device for generating an audio signal and an audio playing device for amplifying the power of the audio signal, the audio generating device and the audio playing device are two independent devices, and can be used separately or together, and the devices are good in use flexibility.
Optionally, the resistance range of the resistor is 5 ohm to 20 ohm.
In an embodiment, the resistance of the resistor may range from 5 ohms to 20 ohms.
Optionally, the capacitance value range of the capacitor is 0.5 microfarad to 2 microfarad.
In a specific embodiment, the capacitance of the capacitor may range from 0.5 microfarads to 2 microfarads.
Optionally, the resistance value of the resistor is 10 ohms.
In a specific embodiment, the resistance of the resistor may be 10 ohms, and the noise reduction effect is good, so that the audio playing quality can be in a better state.
Optionally, the capacitance value of the capacitor is 1 microfarad.
In the specific embodiment, the capacitance value of the capacitor is 1 microfarad, and the effect of reducing the bottom noise is good, so that the audio playing quality can be in a better state.
It should be noted that, in the prior art, a speaker of a power amplifier device may generate a strong background noise, i.e., a background noise, when playing an audio. For example, a split end sound may occur when audio is played. The presence of strong background noise can result in poor audio playback quality.
In the present application, the digital ground and the first analog ground may be provided in a sub-area of the surface of the audio-generating main board, and the digital ground and the first analog ground may be connected at a target position by a first signal line. The target position is the position of a digital-to-analog conversion component on the audio generation mainboard. The method can reduce the background noise and improve the audio playing quality.
While preferred embodiments of the present specification have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all changes and modifications that fall within the scope of the specification.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present specification without departing from the spirit and scope of the specification. Thus, if such modifications and variations of the present specification fall within the scope of the claims of the present specification and their equivalents, the specification is intended to include such modifications and variations.
Claims (9)
1. An audio system comprising an audio producing portion and an audio playing portion, said audio producing portion and said audio playing portion being communicatively coupled;
the audio generation part comprises an audio generation main board, a first area of the surface of the audio generation main board is provided with a digital ground, a second area of the surface of the audio generation main board is provided with a first analog ground, the digital ground and the first analog ground are connected through a first signal wire at a target position, and the target position is a position where a digital-to-analog conversion component on the audio generation main board is located;
the audio generation mainboard also comprises an audio generation circuit used for generating audio signals;
the audio playing part comprises a power amplifier mainboard and a loudspeaker, the power amplifier mainboard comprises a power amplifier chip, and the power amplifier chip is used for amplifying the power of the audio signal generated by the audio generating circuit;
the loudspeaker is used for playing the audio signal subjected to power amplification.
2. The audio system according to claim 1, wherein a third area on the surface of the power amplifier main board is provided with a second analog ground, a fourth area on the surface of the power amplifier main board is provided with a power ground, the second analog ground and the power ground are connected through a parallel resistor-capacitor, the parallel resistor-capacitor comprises a resistor and a capacitor, and the resistor and the capacitor are connected in parallel.
3. The audio system as claimed in claim 2, further comprising a power supply portion for supplying power to the audio generating portion and the audio playing portion;
the installation position of the parallel resistor-capacitor is a position between the second analog ground and the power ground and the position which enables the path through which the supply current of the power supply part passes to be shortest.
4. The audio system as recited in claim 3, wherein the audio generating portion, the audio playing portion and the power supplying portion are disposed within the audio system.
5. The audio system of claim 3, wherein the audio system comprises an audio producing device and an audio playing device;
the audio generating apparatus includes the audio generating portion and a first power supplying portion for supplying power to the audio generating portion;
the audio playing device comprises the audio playing part and a second power supply part, and the second power supply part is used for supplying power to the audio playing part.
6. The audio system according to any one of claims 2 to 5, wherein the resistance value of the resistor is in the range of 5 ohms to 20 ohms.
7. The audio system of any of claims 2 to 5, wherein the capacitance of the capacitor ranges from 0.5 microfarads to 2 microfarads.
8. The audio system of claim 6, wherein the resistance of the resistor is 10 ohms.
9. The audio system of claim 7, wherein the capacitance value of the capacitor is 1 microfarad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120789309.9U CN215072949U (en) | 2021-04-16 | 2021-04-16 | Audio system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120789309.9U CN215072949U (en) | 2021-04-16 | 2021-04-16 | Audio system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215072949U true CN215072949U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120789309.9U Active CN215072949U (en) | 2021-04-16 | 2021-04-16 | Audio system |
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| Country | Link |
|---|---|
| CN (1) | CN215072949U (en) |
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2021
- 2021-04-16 CN CN202120789309.9U patent/CN215072949U/en active Active
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Address after: Room 702, 7th floor, NO.67, Beisihuan West Road, Haidian District, Beijing 100089 Patentee after: Beijing Yunji Technology Co.,Ltd. Address before: Room 702, 7 / F, 67 North Fourth Ring Road West, Haidian District, Beijing Patentee before: BEIJING YUNJI TECHNOLOGY Co.,Ltd. |