CN216312239U - Mute driving circuit, mute system, socket and broadcasting equipment - Google Patents
Mute driving circuit, mute system, socket and broadcasting equipment Download PDFInfo
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- CN216312239U CN216312239U CN202122543641.XU CN202122543641U CN216312239U CN 216312239 U CN216312239 U CN 216312239U CN 202122543641 U CN202122543641 U CN 202122543641U CN 216312239 U CN216312239 U CN 216312239U
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Abstract
The utility model discloses a mute driving circuit, a mute system, a socket and broadcasting equipment. Wherein, silence drive circuit is applied to the socket, silence drive circuit includes: the state detection module is electrically connected with an external power supply, is used for detecting the connection state between the socket and the plug and generates a connection state signal according to the connection state; and the switch module is used for being respectively and electrically connected with the state detection module and the mute working circuit and controlling the working state of the mute working circuit according to the connection state signal. The mute driving circuit sends the connection state signal of the socket to the switch module through the state detection module, and the switch module is switched on or switched off according to the connection state signal, so that the mute working circuit is controlled to start working when the plug is plugged into or pulled out of the socket, the problem that the broadcasting equipment generates noise when the plug of the external sound source is plugged into or pulled out is solved, and the use experience of a user is improved.
Description
Technical Field
The utility model relates to the technical field of noise reduction circuits, in particular to a mute driving circuit, a mute system, a socket and broadcasting equipment.
Background
In the related art, when an external audio source plug is inserted into or pulled out of a socket of the broadcasting equipment, noise is generated, and the use experience of a user is affected.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a mute driving circuit which can inhibit the generation of noise when an external sound source plug is inserted into or pulled out of a socket of broadcasting equipment.
The utility model also provides a mute system with the mute driving circuit, a socket with the mute system and broadcasting equipment with the socket.
The mute driving circuit according to an embodiment of the first aspect of the present invention is applied to a socket, and includes:
the state detection module is electrically connected with an external power supply and is used for detecting the connection state between the socket and the plug and generating a connection state signal according to the connection state;
the switch module is used for being electrically connected with the state detection module and the mute working circuit respectively and controlling the working state of the mute working circuit according to the connection state signal;
wherein, the mute working circuit is used for carrying out mute operation.
The mute driving circuit according to the embodiment of the utility model has at least the following beneficial effects: the circuit detects the connection state of the socket through the state detection module, generates a corresponding connection state signal, the switch module receives the connection state signal, when the connection state signal indicates that the external sound source plug is inserted into or pulled out of the socket, the switch module is switched on, and therefore the mute working circuit is controlled to start to execute the mute work of the circuit, the problem that the broadcasting equipment generates noise when the external sound source plug is inserted into or pulled out is avoided, and the use experience of a user is improved.
According to some embodiments of the utility model, the switch module comprises:
the emitter of the voltage control current element is used for being electrically connected with an external power supply;
one end of the first resistor is used for being electrically connected with an emitter of the voltage control current element and an external power supply respectively, and the other end of the first resistor is used for being electrically connected with the state detection module;
one end of the second resistor is used for being electrically connected with the state detection module and the base electrode of the voltage control current element respectively, and the other end of the second resistor is grounded;
and one end of the third resistor is used for being electrically connected with a collector electrode of the voltage-current control element, and the other end of the third resistor is used for being electrically connected with the mute working circuit.
According to some embodiments of the utility model, the socket comprises an interface unit, a first pin of the interface unit is electrically connected with the left channel input end, a second pin of the interface unit is electrically connected with the right channel input end, and a third pin of the interface unit is electrically connected with the microphone input end;
the state detection module comprises a detection unit, a first port of the detection unit is used for being electrically connected with the switch module, a second port of the detection unit and a third port of the detection unit are used for being electrically connected with the external power supply, and a fourth port of the detection unit is used for being electrically connected with a first pin of the interface unit.
According to some embodiments of the utility model, the switch module further comprises:
one end of the fourth resistor is used for being electrically connected with the collector of the voltage control current element and one end of the second resistor respectively, and the other end of the fourth resistor is used for being grounded;
and one end of the first capacitor is electrically connected with the collector of the voltage-controlled current element and one end of the second resistor respectively, and the other end of the first capacitor is grounded.
According to some embodiments of the utility model, the voltage control flow element comprises any one of a triode and a field effect transistor.
A muting system according to an embodiment of a second aspect of the present invention includes:
the mute drive circuit according to the embodiment of the above first aspect of the present invention;
the mute working circuit is used for being electrically connected with the mute driving circuit, the left sound channel input end, the right sound channel input end and the microphone input end respectively.
The mute system provided by the embodiment of the utility model has at least the following beneficial effects: the mute system avoids the problem that the broadcasting equipment generates noise when the external sound source plug is plugged in or pulled out by adopting the mute driving circuit.
A socket according to an embodiment of the third aspect of the present invention comprises a muting system according to the embodiment of the second aspect of the present invention described above.
The socket according to the embodiment of the utility model has at least the following beneficial effects: by adopting the mute system, the socket avoids the problem that the broadcasting equipment generates noise when an external sound source plug is plugged in or pulled out.
A public address device according to a fourth aspect embodiment of the present invention comprises a jack according to the above third aspect embodiment of the present invention.
The broadcasting equipment provided by the embodiment of the utility model at least has the following beneficial effects: this broadcasting equipment has avoided producing the problem of noise when external source plug inserts or extracts the socket through adopting above-mentioned socket, has promoted user's use and has experienced.
Additional aspects and advantages of the utility model 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 utility model.
Drawings
The utility model is further described with reference to the following figures and examples, in which:
fig. 1 is a block diagram of a mute driving circuit according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a mute driving circuit according to an embodiment of the present invention.
Reference numerals:
the device comprises a state detection module 100, a switch module 200, an external power supply 300, a mute operation circuit 400, a socket 500, a plug 600, a detection unit 110 and an interface unit 510.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
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, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in 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 and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly defined, terms such as set, mounted, connected, electrically connected, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
As shown in fig. 1, the mute driving circuit according to the embodiment of the present invention is applied to a socket, and includes a state detection module 100 and a switch module 200. The state detection module 100 is electrically connected to the external power supply 300, and the state detection module 100 is configured to detect a connection state between the socket and the plug, and generate a connection state signal according to the connection state; the switch module 200 is used for being electrically connected with the state detection module 100 and the mute working circuit 400 respectively, and the switch module 200 is used for controlling the working state of the mute working circuit 400 according to the connection state signal; wherein the mute operation circuit 400 is used to perform a mute operation.
Specifically, first, the state detection module 100 detects a connection state of the socket, and generates a corresponding connection state signal according to the connection state, the switch module 200 receives the connection state signal, and when the connection state signal indicates that the external audio source plug is not inserted into the socket or is completely inserted into the socket, the switch module 200 is turned off, and the mute operation circuit 400 does not operate; when the connection status signal indicates that the external audio plug is plugged into or unplugged from the socket, the switch module 200 is turned on, so as to control the mute operation circuit 400 to start to perform the circuit mute operation.
According to the mute driving circuit provided by the embodiment of the utility model, the connection state of the socket is detected by the state detection module 100 to generate a corresponding connection state signal, the switch module 200 receives the connection state signal, and when the connection state signal indicates that the external sound source plug is inserted into or pulled out of the socket, the switch module 200 is switched on, so that the mute working circuit 400 is controlled to start to execute circuit mute work, thereby avoiding the problem that the broadcasting equipment generates noise when the external sound source plug is inserted into or pulled out, and improving the use experience of a user.
As shown in fig. 2, in some embodiments of the utility model, the switch module 200 includes: the voltage-controlled current element Q1, a first resistor R1, a second resistor R2 and a third resistor R3. The emitter of the voltage-controlled current element Q1 is used for being electrically connected with a power supply; one end of a first resistor R1, one end of a first resistor R1 is used for being electrically connected with the emitter of the voltage-controlled current element Q1 and the power supply respectively, and the other end of the first resistor R1 is used for being electrically connected with the state detection module 100; one end of the second resistor R2 is used for being electrically connected with the state detection module 100 and the base electrode of the voltage-controlled current element Q1 respectively, and the other end of the second resistor R2 is grounded; one end of the third resistor R3 is electrically connected to the collector of the voltage-controlled current element Q1, and the other end of the third resistor R3 is electrically connected to the mute operation circuit 400.
Specifically, when the state detection module 100 detects that the plug 600 is not inserted or the plug 600 is completely inserted into the socket 500, the base of the voltage-controlled current element Q1 is at a low level, the voltage-controlled current element Q1 is not turned on, and the external power supply 300 cannot supply power to the mute operation circuit 400, so the mute operation circuit 400 does not operate; when the state detection module 100 detects that the plug 600 is in a state of being plugged into or unplugged from the socket 500, the base voltage of the voltage control current element Q1 is pulled high, the voltage control current element Q1 is turned on, the external power supply 300 can supply power to the mute operation circuit 400, and the mute operation circuit 400 starts to operate.
As shown in fig. 2, in some embodiments of the utility model, the socket 500 includes an interface unit 510, a first pin (e.g., "1" pin in fig. 2) of the interface unit 510 is electrically connected to the left channel input terminal SINGAL1, a second pin (e.g., "2" pin in fig. 2) of the interface unit 510 is electrically connected to the right channel input terminal SINGAL2, and a third pin (e.g., "3" pin in fig. 2) of the interface unit 510 is electrically connected to the microphone input terminal SINGAL 3; the state detection module 100 includes a detection unit 110, a first port (e.g., "4" pin in fig. 2) of the detection unit 110 is used to electrically connect with the switch module 200, a second port (e.g., "5" pin in fig. 2) of the detection unit 110 and a third port (e.g., "6" pin in fig. 2) of the detection unit 110 are used to electrically connect with the external power supply 300, and a fourth port (e.g., "7" pin in fig. 2) of the detection unit 110 is used to electrically connect with a first pin of the interface unit 510.
Specifically, when the detecting unit 110 detects that the plug 600 is not inserted into the socket 500 through the fourth port of the detecting unit 110, the first port of the detecting unit 110 and the second port of the detecting unit 110 are in a closed state, at this time, the first resistor R1 is short-circuited, the current provided by the external power source 300 directly flows from the second resistor R2 to the ground, and the base of the voltage-controlled current element Q1 is in a low level state; when the detection unit 110 detects that the plug 600 is in a state of being inserted into or pulled out of the socket 500 through the fourth port of the detection unit 110, the first port of the detection unit 110 and the second port of the detection unit 110 are in an off state, and the first port of the detection unit 110 and the third port of the detection unit 110 are also in an off state, at this time, the external power supply 300 directly supplies power to the base of the voltage-controlled current element Q1, the base voltage of the voltage-controlled current element Q1 is pulled high, and the voltage-controlled current element Q1 is turned on; when the detecting unit 110 detects that the plug 600 is fully inserted into the socket 500 through the fourth port of the detecting unit 110, the first port of the detecting unit 110 and the third port of the detecting unit 110 are in a closed state, the first resistor R1 is short-circuited, the current provided by the external power source 300 flows directly from the second resistor R2 to the ground, and the base of the voltage-controlled current element Q1 is in a low level state.
As shown in fig. 2, in some embodiments of the utility model, the switch module 200 further includes a fourth resistor R4 and a first capacitor C1. One end of the fourth resistor R4 is used for being electrically connected with the collector of the voltage-controlled current element Q1 and one end of the second resistor R2 respectively, and the other end of the fourth resistor R4 is used for being grounded; one end of the first capacitor C1 is electrically connected to the collector of the voltage-controlled current element Q1 and one end of the second resistor R2, respectively, and the other end of the first capacitor C1 is grounded.
Specifically, the fourth resistor R4 and the first capacitor C1 are connected in parallel with each other, one end shared by the fourth resistor R4 and the first capacitor C1 is electrically connected to the base of the voltage-controlled current element Q1, and the other end shared by the fourth resistor R4 and the first capacitor C1 is grounded.
As shown in fig. 2, in some embodiments of the utility model, the voltage-controlled current element Q1 includes any one of a transistor and a field effect transistor.
Specifically, the voltage-current control element Q1 may be a PNP type triode, with a model 2N 3906. It will be appreciated that the type and model of the pressure control flow element Q1 may be selected adaptively according to actual needs.
As shown in fig. 2, in a specific embodiment, when the detecting unit 110 detects that the plug 600 is not inserted into the socket 500 through the fourth port (e.g., "7" pin in fig. 2) of the detecting unit 110, the first port (e.g., "4" pin in fig. 2) of the detecting unit 110 and the second port (e.g., "5" pin in fig. 2) of the detecting unit 110 are in a closed state, the first resistor R1 is shorted, the current provided by the external power source 300 flows directly from the second resistor R2 to the ground, the base level of the voltage-controlled current element Q1 is in a low level state, so the voltage-controlled current element Q1 is in an off state, and the mute operation circuit 400 does not operate due to no power supply.
When the fourth port of the detecting unit 110 detects that the plug 600 is being inserted into the socket 500, the connection between the first port of the detecting unit 110 and the second port of the detecting unit 110 is disconnected, the first port of the detecting unit 110 and the third port (for example, the "6" pin in fig. 2) of the detecting unit 110 are also in an off state, at this time, the external power source 300 directly supplies power to the base of the controlled voltage-current element Q1, the base voltage of the controlled voltage-current element Q1 is pulled high, the controlled voltage-current element Q1 is turned on, and the mute operation circuit 400 is powered on and starts to operate.
After the detecting unit 110 detects that the plug 600 is completely inserted into the socket 500 through the fourth port of the detecting unit 110, the first port of the detecting unit 110 and the third port of the detecting unit 110 are closed, the first resistor R1 is short-circuited again, the base level of the voltage-controlled current element Q1 returns to a low level state, the voltage-controlled current element Q1 is turned off, and the mute operation circuit 400 stops operating due to no power supply, so that the mute driving circuit of this embodiment completes the mute operation of the plug 600 in the socket 500.
The mute operation of the mute driving circuit in the process of pulling the plug 600 out of the socket 500 is opposite to the mute operation of the process of inserting the plug 600 into the socket 500, when the fourth port of the detecting unit 110 detects that the plug 600 is being pulled out of the socket 500, the connection between the first port of the detecting unit 110 and the third port of the detecting unit 110 is disconnected, the first port of the detecting unit 110 and the second port of the detecting unit 110 are also in a disconnected state, at this time, the external power supply 300 directly supplies power to the base of the voltage-controlled current element Q1, the base voltage of the voltage-controlled current element Q1 is pulled high, the voltage-controlled current element Q1 is turned on, and the mute operating circuit 400 is powered on and starts to operate. After the detecting unit 110 detects that the plug 600 is completely inserted into the socket 500 through the fourth port of the detecting unit 110, the first port of the detecting unit 110 and the second port of the detecting unit 110 are closed, the first resistor R1 is short-circuited, the base level of the voltage-controlled current element Q1 returns to a low level state, the voltage-controlled current element Q1 is turned off, and the mute operation circuit 400 stops operating due to no power supply, so that the mute driving circuit of this embodiment completes the mute operation of the plug 600 in the process of pulling out the socket 500.
The embodiment of the utility model further provides a mute system, which comprises a mute working circuit and the mute driving circuit described in any embodiment. The mute working circuit is used for being electrically connected with the mute driving circuit, the left sound channel input end, the right sound channel input end and the microphone input end respectively.
According to the mute system provided by the embodiment of the utility model, the mute driving circuit is adopted, so that the problem that the broadcasting equipment generates noise when the external sound source plug is plugged in or pulled out is avoided.
An embodiment of the present invention further provides a socket including the muting system described in any of the above embodiments.
According to the socket provided by the embodiment of the utility model, the problem that the broadcasting equipment generates noise when the external sound source plug is plugged into or pulled out of the socket is solved by adopting the mute system.
The embodiment of the utility model also provides broadcasting equipment which comprises the socket described in any one of the above embodiments.
According to the broadcasting equipment provided by the embodiment of the utility model, by adopting the socket, the problem that the broadcasting equipment generates noise when an external sound source plug is inserted into or pulled out of the socket is avoided, and the use experience of a user is improved.
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 within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Claims (8)
1. Silence drive circuit, characterized in that, be applied to the socket, silence drive circuit includes:
the state detection module is electrically connected with an external power supply and is used for detecting the connection state between the socket and the plug and generating a connection state signal according to the connection state;
the switch module is used for being electrically connected with the state detection module and the mute working circuit respectively and controlling the working state of the mute working circuit according to the connection state signal;
wherein, the mute working circuit is used for carrying out mute operation.
2. The mute driving circuit according to claim 1, wherein the switch module comprises:
the emitter of the voltage control current element is used for being electrically connected with an external power supply;
one end of the first resistor is used for being electrically connected with an emitter of the voltage control current element and an external power supply respectively, and the other end of the first resistor is used for being electrically connected with the state detection module;
one end of the second resistor is used for being electrically connected with the state detection module and the base electrode of the voltage control current element respectively, and the other end of the second resistor is grounded;
and one end of the third resistor is used for being electrically connected with a collector electrode of the voltage-current control element, and the other end of the third resistor is used for being electrically connected with the mute working circuit.
3. The mute driving circuit according to claim 1, wherein the socket comprises an interface unit, a first pin of the interface unit is electrically connected to the left channel input terminal, a second pin of the interface unit is electrically connected to the right channel input terminal, and a third pin of the interface unit is electrically connected to the microphone input terminal;
the state detection module comprises a detection unit, a first port of the detection unit is used for being electrically connected with the switch module, a second port of the detection unit and a third port of the detection unit are used for being electrically connected with the external power supply, and a fourth port of the detection unit is used for being electrically connected with a first pin of the interface unit.
4. The mute driving circuit according to claim 2, wherein the switch module further comprises:
one end of the fourth resistor is used for being electrically connected with the collector of the voltage control current element and one end of the second resistor respectively, and the other end of the fourth resistor is used for being grounded;
and one end of the first capacitor is electrically connected with the collector of the voltage-controlled current element and one end of the second resistor respectively, and the other end of the first capacitor is grounded.
5. The mute driving circuit according to claim 2, wherein the voltage-controlled current element comprises any one of a triode and a field effect transistor.
6. A muting system, comprising:
a mute drive circuit according to any one of claims 1 to 5;
and the mute working circuit is electrically connected with the mute driving circuit.
7. A jack comprising the muting system according to claim 6.
8. Announcement device, characterized in that it comprises a socket according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122543641.XU CN216312239U (en) | 2021-10-21 | 2021-10-21 | Mute driving circuit, mute system, socket and broadcasting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122543641.XU CN216312239U (en) | 2021-10-21 | 2021-10-21 | Mute driving circuit, mute system, socket and broadcasting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216312239U true CN216312239U (en) | 2022-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122543641.XU Active CN216312239U (en) | 2021-10-21 | 2021-10-21 | Mute driving circuit, mute system, socket and broadcasting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216312239U (en) |
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2021
- 2021-10-21 CN CN202122543641.XU patent/CN216312239U/en active Active
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