CN218473364U - Multifunctional debugging circuit for loudspeaker box and loudspeaker box - Google Patents
Multifunctional debugging circuit for loudspeaker box and loudspeaker box Download PDFInfo
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- CN218473364U CN218473364U CN202222466085.5U CN202222466085U CN218473364U CN 218473364 U CN218473364 U CN 218473364U CN 202222466085 U CN202222466085 U CN 202222466085U CN 218473364 U CN218473364 U CN 218473364U
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Abstract
The utility model provides a multi-functional debugging circuit and audio amplifier are used to audio amplifier, multi-functional debugging circuit includes for the audio amplifier: the USB interface circuit, the analog switch module and the power module are connected with the external; the switching of the communication relation between the debugging outer side connecting end and the plurality of debugging inner side connecting ends can be realized through the analog switch module, and the USB external interface circuit is connected to the debugging outer side connecting end, so that the connection between the external test equipment and different interfaces of the internal control module can be completed under the control of the control module, and diversified requirements are met. Moreover, only one USB external interface circuit is provided, so that other external interfaces are not required to be added, and the integrity of the cavity of the sound box is ensured. In addition, the USB external interface circuit can complete the connection with an external USB medium, and the power module provides power required by the USB-Device.
Description
Technical Field
The utility model relates to an audio amplifier technical field, in particular to audio amplifier is with multi-functional debugging circuit and audio amplifier.
Background
In the development and debugging of the sound box and the application of finished products, an SWD interface is needed for debug, a UART interface is needed for debugging, and a USB interface and external USB equipment are needed for data operation. Above SWD, UART interface all do not have corresponding external interface to draw forth in common audio amplifier finished product, cause the later stage to the debugging of audio amplifier finished product have the difficulty, for example: debugging work can be completed only by destroying or disassembling the sound box body. And if adopt and increase a plurality of external interfaces that correspond again on the audio amplifier box, then can destroy audio amplifier cavity integrality to a certain extent to also make the audio amplifier interface too complicated, be unfavorable for ordinary consumer to use.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a multi-functional debugging circuit is used to audio amplifier can guarantee the integrality of audio amplifier cavity under the prerequisite that satisfies multiple demand.
The utility model provides a still another audio amplifier.
According to the utility model discloses multi-functional debugging circuit is used to audio amplifier of first aspect embodiment, include:
a USB external interface circuit;
the analog switch module is provided with a debugging outer side connecting end, a plurality of function selecting ends and a plurality of debugging inner side connecting ends; the function selecting ends are used for receiving a plurality of enabling voltage signals transmitted by the control module; the debugging outer connecting end is connected with the USB external interface circuit; the plurality of debugging inner connecting ends are used for connecting different debugging interfaces on the control module; the analog switch module is used for adjusting the communication relation between the debugging outer side connecting end and the plurality of debugging inner side connecting ends;
and the power supply module is used for taking power from the USB external interface circuit.
According to the utility model discloses multi-functional debugging circuit for audio amplifier has following beneficial effect at least:
the switching of the communication relation between the debugging outer side connecting end and the debugging inner side connecting ends can be realized through the analog switch module, and the debugging outer side connecting end is connected with the USB external interface circuit, so that the connection of different interfaces of an external test device and an internal control module can be completed under the control of the control module, and diversified requirements are met. Moreover, only one USB external interface circuit is provided, so that other external interfaces are not required to be added, and the integrity of the cavity of the sound box is ensured. In addition, the USB external interface circuit can complete the connection with an external USB medium, and the power module provides power required by the USB-Device.
According to some embodiments of the present invention, the analog switch chip is used as the core chip of the analog switch module.
According to some embodiments of the invention, the analog switch chip is a 74HC4052 chip.
According to some embodiments of the utility model, the USB external interface circuit includes:
the USB external connection port is arranged on the sound box body and is provided with a power supply end and a communication end; the power supply end is connected with the power supply module; the communication end is connected with the debugging outer side connecting end.
According to some embodiments of the utility model, USB external interface circuit still includes the electrostatic protection unit, between power supply end and the ground wire the communication end with all be connected with between the ground wire the electrostatic protection unit.
According to some embodiments of the invention, the electrostatic protection unit is an anti-static diode.
According to some embodiments of the present invention, the power module has a core chip which is an STMPS2151STR chip.
According to some embodiments of the utility model, it is a plurality of the inboard link of debugging includes UART connection port, USB internal connection port, SWD connection port at least.
According to some embodiments of the present invention, it is a plurality of the function selection end includes at least a selection enable end, a first selection end and a second selection end, the selection enable end the first selection end and the second selection end all with the analog switch module is connected.
According to the utility model discloses audio amplifier of second aspect embodiment, include as the first aspect embodiment multi-functional debugging circuit is used to the audio amplifier. The embodiment of the utility model provides an in the audio amplifier have included like the first aspect embodiment the multi-functional debugging circuit is used to the audio amplifier, consequently possess like the first aspect embodiment all beneficial effects of multi-functional debugging circuit are used to the audio amplifier.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic circuit diagram of an analog switch module according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a USB external interface circuit according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a power module according to an embodiment of the present invention.
Reference numerals:
USB external interface circuit 100,
An analog switch module 200,
A power module 300.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, if there are first, second, etc. described, it is only for the purpose of distinguishing technical features, and it is not understood that relative importance is indicated or implied or that the number of indicated technical features is implicitly indicated or that the precedence of the indicated technical features is implicitly indicated.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper and lower directions, is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless there is an explicit limitation, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solutions.
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the embodiments described below are some, not all embodiments of the present invention.
Referring to fig. 1 to 3, fig. 1 to 3 constitute a multifunctional debugging circuit for a sound box according to an embodiment of the present invention, which includes a USB external interface circuit 100, an analog switch module 200, a power module 300, and a USB external interface circuit 100;
an analog switch module 200 having a debug outside connection terminal, a plurality of function selection terminals, and a plurality of debug inside connection terminals; the function selection ends are used for receiving a plurality of enable voltage signals transmitted by the control module; the debugging external connection end is connected with the USB external interface circuit 100; the plurality of debugging inner connecting ends are used for connecting different debugging interfaces on the control module; the analog switch module 200 is used for adjusting the communication relationship between the debugging outer side connecting end and the plurality of debugging inner side connecting ends;
the power module 300 is used for getting power from the USB external interface circuit 100.
Referring to fig. 1 to 3, the usb external interface circuit 100 is capable of connecting an external device to the debug outside connection terminal of the analog switch module 200, and meanwhile, the debug inside connection terminals of the analog switch module 200 are connected to the debug interfaces of the control module. When the interface switching is needed, the control module sends enabling voltage signals to the plurality of function selecting ends, so that the switching of the connection interface between the external device and the internal control module can be completed. It should be noted that different combinations of the enable voltage signals received by the plurality of function selecting terminals correspond to different debug interfaces.
It should be noted that the control module sends a plurality of enable voltage signals through a plurality of function selection terminals, and the enable voltage signals can be determined according to the use requirements of the user, that is, the control module completes the input of the interface switching signal through human-computer interaction with the user. Specifically, the switching can be completed through a key on the sound box.
The utility model discloses multi-functional debugging circuit for audio amplifier can realize debugging outside link and the switching of a plurality of debugging inboard link intercommunication relations through analog switch module 200 to because the external interface circuit 100 of USB has been connected to the debugging outside link, thereby can accomplish the different interface connection of external test equipment and internal control module under control module's control, satisfy diversified demand. In addition, only one USB external interface circuit 100 is provided, so that no other external interface is required to be added, and the integrity of the cavity of the sound box is ensured. In addition, the USB external interface circuit 100 can complete the connection with the external USB medium, and the power module 300 provides the power required by the USB-Device.
In some embodiments, the core chip of the analog switch module 200 employs an analog switch chip U1. The analog switch chip U1 has small volume, can effectively save the space occupied by the switching part, can ensure that the whole multifunctional debugging circuit for the sound box is miniaturized on the premise of ensuring the switching function, and can also reduce wiring.
In some embodiments, the analog switch chip U1 employs a 74HC4052 chip, and the 74HC4052 chip has multiple sets of selectable communication channels, which is enough to meet the use requirements in most cases, for example, the switching use requirements of the SWD interface, the UART interface, and the USB interface in the background art can be met.
In some embodiments, the USB external interface circuit 100 includes a USB external connection port, the USB external connection port is disposed on the speaker box body, and the USB external connection port has a power supply terminal and a communication terminal; the power supply end is connected with the power supply module 300; the communication end is connected with the debugging outside connecting end. Referring to fig. 1 and 2, data transmission with the analog switch module 200 can be completed by using the USB external connection port.
Referring to fig. 2, in some embodiments, the USB external interface circuit 100 further includes an electrostatic protection unit, and the electrostatic protection unit is connected between the power supply terminal and the ground line, and between the communication terminal and the ground line. The electrostatic protection unit is arranged to realize electrostatic protection, and meanwhile, a plurality of different debugging interfaces share one group of electrostatic protection unit, so that the space of components and parts and wiring can be reduced to a certain extent.
In some embodiments, the electrostatic protection unit is an electrostatic prevention diode. Referring to fig. 2, the ESD protection units ESD1, ESD2, and ESD3 are static protection units, and the purpose of static protection can be achieved by using the ESD1, ESD2, and ESD 3.
In some embodiments, the power module 300 uses a STMPS2151STR chip as a core chip. The STMPS2151STR chip can meet the requirement of a power supply required by the USB-Device, and the power supply chip is directly adopted, so that the integration degree is higher, and the occupation of the space volume can be better reduced.
Referring to fig. 1, in some embodiments, the plurality of debug inboard connection ends include at least a UART connection port, a USB internal connection port, and a SWD connection port. UART connection port, USB internal connection port, SWD connection port are enough to satisfy the audio amplifier and use and debug the demand.
In some embodiments, the plurality of function selection terminals include at least a selection enable terminal EN, a first selection terminal SW0 and a second selection terminal SW1, and the selection enable terminal EN (the EN port in U1 shown in fig. 1), the first selection terminal SW0 and the second selection terminal SW1 are all connected to the analog switch module 200. For the case of only a UART connection port, a USB internal connection port and an SWD connection port, only two selection ports are needed to meet the selection requirement, and the selection enabling terminal is used for enabling control to determine whether debugging port switching is needed. In some embodiments, as shown in fig. 1, the selection enable terminal EN may be directly grounded, so that the analog switch module 200 is always in an enabled state. The pull-down resistor R1 is arranged at the joint of the first selection end SW0 and the analog switch chip U1, and the pull-up resistor R2 is arranged at the joint of the second selection end SW1 and the analog switch chip U1, so that the control capability of the control module on the analog switch chip U1 is ensured. It should be noted that, the selection of the enable end EN may be directly grounded, or may be controlled by the control module, which is not limited by the present invention.
In order to better explain the multifunctional debugging circuit for a sound box according to an embodiment of the present invention, the whole working process is further described here in a specific embodiment mode, and in this embodiment, an example of selecting an SWD connection port is described.
Connecting a USB port of external test equipment with a USB external connection port arranged on the sound box body;
after the USB port is connected, a user selects an SWD connection port in a man-machine interaction mode; many man-machine interaction modes are available, for example: the selection can be completed through keys arranged on the sound box body;
after the fact that the SWD connection port needs to be used is determined, the control module controls the analog switch chip U1 to adjust the debugging inner side connection end to the SWD connection port by changing a group of high and low level signals of the first selection end SW0, the second selection end SW1 and the selection enabling end EN;
after the analog switch chip U1 is switched, the external test equipment can be connected to the SWD connection port through the USB external connection port, so that communication with the control module in the sound box is completed.
It should be noted that the user may also select other debug inboard connections by way of human-computer interaction, such as: and selecting a UART connection port and a USB internal connection port to finish other application or debugging work. How to select specifically can be referred to table 1.
TABLE 1
| EN | S1 | S0 | Debugging inner side connecting end |
| L | L | L | UART connecting port |
| L | L | H | USB internal connection port |
| L | H | L | SWD connection port |
In table 1, L represents a low level signal, and H represents a high level signal. When the selection enable end EN, the first selection end SW0 and the second selection end SW1 are all in low level, the debugging inner connecting end selects a UART connecting port; when the selection enable end EN and the first selection end SW0 are in low level and the second selection end SW1 is in high level, the debugging inner side connecting end selects the USB internal connecting port; when the selection enable terminal EN and the second selection terminal SW1 are at a low level and the first selection terminal SW0 is at a high level, the debug inside connection terminal selects the SWD connection port. It should be noted that how to specifically realize selection can be adjusted according to actual conditions, and the present invention is not limited thereto.
In addition, when the external USB medium can be connected to the external USB interface circuit 100, the power module 300 can provide power for the USB Device.
The utility model discloses can realize debugging outside link and the switching of a plurality of debugging inboard link intercommunication relations through analog switch module 200 to because the external interface circuit 100 of USB has been connected to debugging outside link, thereby can accomplish the different interface connection of external test equipment and internal control module under control module's control, satisfy diversified demand. In addition, only one USB external interface circuit 100 is provided, so that no other external interface is required to be added, and the integrity of the cavity of the sound box is ensured. In addition, the USB external interface circuit 100 can complete the connection with the external USB medium, and the power module 300 provides the power required by the USB-Device.
The embodiment of the utility model provides a still provide a sound box, this sound box includes like the multi-functional debugging circuit for the sound box of embodiment above. The embodiment of the utility model provides an in the audio amplifier included as above-mentioned multi-functional debugging circuit for the audio amplifier, consequently possessed foretell audio amplifier with all beneficial effects of multi-functional debugging circuit.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. The utility model provides a multi-functional debugging circuit is used to audio amplifier which characterized in that includes:
a USB external interface circuit;
the analog switch module is provided with a debugging outer connecting end, a plurality of function selecting ends and a plurality of debugging inner connecting ends; the function selecting ends are used for receiving a plurality of enabling voltage signals transmitted by the control module; the debugging outer connecting end is connected with the USB external interface circuit; the plurality of debugging inner side connecting ends are used for connecting different debugging interfaces on the control module; the analog switch module is used for adjusting the communication relation between the debugging outer side connecting end and the plurality of debugging inner side connecting ends;
and the power supply module is connected with the USB external interface circuit.
2. The multifunctional debugging circuit for the sound box according to claim 1, wherein an analog switch chip is adopted as a core chip of the analog switch module.
3. The multifunctional debugging circuit for a sound box of claim 2, wherein the analog switch chip is a 74HC4052 chip.
4. The multifunctional debugging circuit for a sound box according to claim 1, wherein the USB external interface circuit comprises:
the USB external connection port is arranged on the sound box body and is provided with a power supply end and a communication end; the power supply end is connected with the power supply module; the communication end is connected with the debugging outer side connecting end.
5. The multifunctional debugging circuit for the loudspeaker box according to claim 4, wherein the USB external interface circuit further comprises an electrostatic protection unit, and the electrostatic protection unit is connected between the power supply terminal and the ground wire, and between the communication terminal and the ground wire.
6. The multifunctional debugging circuit for sound boxes according to claim 5, wherein said electrostatic protection unit is an anti-electrostatic diode.
7. The multi-functional debugging circuit for audio amplifier of claim 4, characterized in that, the core piece of said power module adopts STMPS2151STR chip.
8. The multifunctional debugging circuit for speaker according to claim 1, wherein the plurality of debugging inner connection terminals at least comprise a UART connection port, a USB internal connection port, and a SWD connection port.
9. The multi-functional debugging circuit for speaker of claim 8, wherein said plurality of function selection terminals comprises at least a selection enable terminal, a first selection terminal and a second selection terminal, and said selection enable terminal, said first selection terminal and said second selection terminal are all connected to said analog switch module.
10. An audio amplifier, characterized in that it comprises a multifunctional debugging circuit for an audio amplifier according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222466085.5U CN218473364U (en) | 2022-09-16 | 2022-09-16 | Multifunctional debugging circuit for loudspeaker box and loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222466085.5U CN218473364U (en) | 2022-09-16 | 2022-09-16 | Multifunctional debugging circuit for loudspeaker box and loudspeaker box |
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| Publication Number | Publication Date |
|---|---|
| CN218473364U true CN218473364U (en) | 2023-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222466085.5U Active CN218473364U (en) | 2022-09-16 | 2022-09-16 | Multifunctional debugging circuit for loudspeaker box and loudspeaker box |
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| CN (1) | CN218473364U (en) |
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- 2022-09-16 CN CN202222466085.5U patent/CN218473364U/en active Active
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