CN215010685U - Earphone circuit with function of independently controlling noise reduction switch - Google Patents
Earphone circuit with function of independently controlling noise reduction switch Download PDFInfo
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- CN215010685U CN215010685U CN202121790714.9U CN202121790714U CN215010685U CN 215010685 U CN215010685 U CN 215010685U CN 202121790714 U CN202121790714 U CN 202121790714U CN 215010685 U CN215010685 U CN 215010685U
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Abstract
The utility model relates to the technical field of Bluetooth earphones, in particular to an earphone circuit with an independent control noise reduction switch function, which comprises a main control module, a control module and a noise reduction module, wherein the control module is used for controlling the main control module to be turned on and off and outputting a control signal to the main control module; the noise reduction module comprises a toggle switch and a diode D7, the main control module is provided with a noise reduction end and a switch end, the toggle switch is connected with the noise reduction end, the toggle switch is connected with the switch end through the diode D7, and the control module is connected with the switch end. The utility model discloses a be provided with diode D7, let toggle switch insert switch machine end through diode D7 to realize through toggle switch can realize the main control module start and open the effect of noise reduction function; the diode D7 can also prevent current from flowing to the toggle switch when the control module is activated, so as to avoid signal interference.
Description
Technical Field
The utility model belongs to the technical field of the bluetooth headset technique and specifically relates to indicate an earphone circuit with switch function of making an uproar falls in independent control.
Background
With the rapid development of earphone technology, the use of the head-wearing wireless bluetooth earphone becomes more and more extensive, various earphones with noise reduction effects are emerging on the market, and the earphone has the functions of reducing the ambient noise and amplifying the ambient sound. However, these noise reduction effects usually need to be switched to use after the wireless bluetooth headset is powered on; if the noise is reduced by the toggle switch under the shutdown state, the switch can not be opened, so that the use experience is reduced.
Disclosure of Invention
The utility model discloses problem to prior art provides an earphone circuit with the switch function of making an uproar falls in independent control, can only adopt toggle switch to open the noise reduction effect.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides an earphone circuit with function of controlling noise reduction switch individually, which comprises a main control module, a control module and a noise reduction module, wherein the control module is used for controlling the main control module to be turned on and off and outputting control signals to the main control module;
the noise reduction module comprises a toggle switch and a diode D7, the main control module is provided with a noise reduction end and a switch end, the toggle switch is connected with the noise reduction end, the toggle switch is connected with the switch end through the diode D7, and the control module is connected with the switch end.
Further, the toggle switch comprises a body, a fixed end, a grounding end and a starting end, the body is fixedly connected to the fixed end, the body is movably arranged between the grounding end and the starting end, and the main control module is used for supplying power to the starting end; the fixed end connect in fall the end of making an uproar, the fixed end warp diode D7 connect in the switch end.
Further, the noise reduction module further comprises a resistor R21 and a resistor R24, the resistor R21 is disposed between the toggle switch and the noise reduction end, and the resistor R24 is disposed between the toggle switch and the diode.
Further, the control module includes a switch, a first voltage-dividing circuit and a second voltage-dividing circuit, the main control module is further provided with a control end and a power end, the power end is used for supplying power to the switch, the switch is connected to the switch end through the first voltage-dividing circuit, and the switch is connected to the control end through the second voltage-dividing circuit.
Further, the control module further includes a diode D14, the diode D14 is disposed between the switch and the first voltage dividing circuit, and the diode D14 is used for preventing the current on the switch end from flowing back to the switch.
Further, the first voltage dividing circuit includes a resistor R14 and a resistor R16, the switch is connected to the switch terminal through the resistor R14, the resistor R16 is connected between the resistor R14 and the switch terminal, and the resistor R14 is grounded through the resistor R16.
Furthermore, the second voltage divider circuit includes a resistor R31 and a resistor R32, the switch is connected to the control terminal through the resistor R32, the resistor R31 is disposed between the resistor R32 and the control terminal, and the resistor R32 is grounded through the resistor R31.
Further, the main control module comprises a power supply and a control chip, wherein the power supply is connected to the control chip, and the noise reduction end and the switch machine end are both arranged on the control chip.
Furthermore, the model of the control chip is BES 2300Z.
Further, still include triode Q1, control chip still is provided with the IO end, triode Q1's base connect in fall the end of making an uproar, the collecting electrode of triode connect in fall the end of making an uproar with between the IO end, the projecting pole ground connection of triode.
The utility model has the advantages that: the utility model discloses a be provided with diode D7, let toggle switch insert switch machine end through diode D7 to realize through toggle switch can realize the main control module start and open the effect of noise reduction function; the diode D7 can also prevent current from flowing to the toggle switch when the control module is activated, so as to avoid signal interference.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic view of the noise reduction module of the present invention.
Fig. 3 is a schematic diagram of the control module of the present invention.
Reference numerals: 1-main control module, 2-control module, 3-noise reduction module, 4-toggle switch, 5-switch, 6-first voltage division circuit, 7-second voltage division circuit, 8-power, 9-control chip, 41-body, 42-stiff end, 43-earthing terminal, 44-start-up terminal, 91-noise reduction terminal, 92-switch terminal, 93-control terminal, 94-power terminal, 95-IO terminal.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to fig. 3, the utility model provides an earphone circuit with function of individually controlling noise reduction switch, which comprises a main control module 1, a control module 2 and a noise reduction module 3, wherein the control module 2 is used for controlling the main control module 1 to switch 5 and outputting control signal to the main control module 1;
the noise reduction module 3 comprises a toggle switch 4 and a diode D7, the main control module 1 is provided with a noise reduction end 91 and a switch end 92, the toggle switch 4 is connected to the noise reduction end 91, the toggle switch 4 is connected to the switch end 92 through the diode D7, and the control module 2 is connected to the switch end 92.
In actual use, the main control module 1 includes a power supply 8 and a control chip 9, the power supply 8 is connected to the control chip 9, and the noise reduction end 91 and the switch end 92 are both disposed on the control chip 9. The control chip 9 is a chip commonly used in the existing bluetooth headset, such as a BES2300Z chip. The utility model is provided with a control module 2 which is used for switching on and off 5 machines and sending control instructions to a control chip 9, for example, sending instructions such as 'only turning on a microphone', 'only turning on a loudspeaker' and the like; and work as the utility model discloses be in the shutdown state and only need open when making an uproar the function of making an uproar, then control toggle switch 4 and switch to economize on electricity the state, the electric current divides two tunnel flows behind toggle switch 4: one way of entering the switch terminal 92 triggers the main control module 1 to start up, and the other way of entering the noise reduction terminal 91 to start the noise reduction function for the main control module 1, so that the control module 2 can be started up and the noise reduction function can be started up only by the toggle switch 4 on the premise of not controlling the main control module 1 to start up through the control module 2, control is more convenient, and user experience is improved.
The diode D7 is used to block the signal of the control module 2 when the control module 2 triggers the main control module 1 to start up, so as to prevent the signal current from flowing back to the toggle switch 4 to cause an influence.
In this embodiment, the toggle switch 4 includes a body 41, a fixed end 42, a ground end 43 and an activation end 44, the body 41 is fixedly connected to the fixed end 42, the body 41 is movably disposed between the ground end 43 and the activation end 44, and the main control module 1 is configured to supply power to the activation end 44; the fixed end 42 is connected to the noise reduction end 91, and the fixed end 42 is connected to the switch 5 end through the diode D7. That is, the body 41 is switched between the grounding end 43 and the starting end 44, when the body 41 is contacted with the grounding end 43, the toggle switch 4 is in the grounding state, that is, the noise reduction function is in the off state; when the body 41 contacts the start-up end 44, the toggle switch 4 is in an on state, so that the noise reduction end 91 of the main control module 1 has current flowing through it, and the main control module 1 is triggered to start the noise reduction function.
In this embodiment, the noise reduction module 3 further includes a resistor R21 and a resistor R24, the resistor R21 is disposed between the toggle switch 4 and the noise reduction end 91, and the resistor R24 is disposed between the toggle switch 4 and the diode. The resistor R21 and the resistor R24 are respectively used for voltage division, so that currents flowing out through the toggle switch 4 are respectively led into the main control module 1 after being shunted, and the currents are prevented from being overlarge; in addition, after the main control module 1 receives the two currents, the control module 2 is determined to be in the inactive state according to the magnitude of the current flowing into the switch terminal 92 through the toggle switch 4, and at this time, only the noise reduction function is started.
In this embodiment, the control module 2 includes a switch 5, a first voltage-dividing circuit 6 and a second voltage-dividing circuit 7, the main control module 1 is further provided with a control terminal 93 and a power supply terminal 94, the power supply terminal 94 is used for supplying power to the switch 5, the switch 5 is connected to the switch terminal 92 through the first voltage-dividing circuit 6, and the switch 5 is connected to the control terminal 93 through the second voltage-dividing circuit 7.
Specifically, the switch 5 may be a push type or a touch type, and is configured to instantaneously turn on the switch terminal 92 and the power terminal 94 after being triggered, so that the switch terminal 92 of the main control module 1 is turned on by the instantaneous current, and then the main control module 1 correspondingly turns on the function according to the time when the switch 5 is triggered.
Specifically, the control module 2 further includes a diode D14, the diode D14 is disposed between the switch 5 and the first voltage dividing circuit 6, and the diode D14 is used for preventing the current at the switch terminal 92 from flowing back to the switch 5. The diode D14 is arranged, so that the current output by the toggle switch 4 can not enter the switch 5, and the safety of the switch 5 is protected.
Specifically, the first voltage dividing circuit 6 includes a resistor R14 and a resistor R16, the switch 5 is connected to the switch terminal 92 through the resistor R14, the resistor R16 is connected between the resistor R14 and the switch terminal 92, and the resistor R14 is grounded through the resistor R16. The resistor R14 and the resistor R16 are matched to divide voltage, so that the current of the switch 5 is not too large to cause the burning of the main control module 1.
Specifically, the second voltage divider circuit 7 includes a resistor R31 and a resistor R32, the switch 5 is connected to the control terminal 93 through the resistor R32, the resistor R31 is disposed between the resistor R32 and the control terminal 93, and the resistor R32 is grounded through the resistor R31. The resistor R32 and the resistor R31 are matched to divide voltage, so that the current of the switch 5 is not too large to cause the burning of the main control module 1.
In this embodiment, the utility model discloses still include triode Q1, control chip 9 still is provided with IO end 95, triode Q1's base connect in fall make an uproar end 91, the collecting electrode of triode connect in fall make an uproar end 91 with between the IO end 95, the projecting pole ground connection of triode. The IO end 95 of the main control chip is protected by the triode Q1, so that current is prevented from directly entering the IO end 95, and the safety of the IO end 95 is protected.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.
Claims (10)
1. An earphone circuit with a function of individually controlling a noise reduction switch, characterized in that: the noise reduction device comprises a main control module, a control module and a noise reduction module, wherein the control module is used for controlling the main control module to be turned on and off and outputting a control signal to the main control module;
the noise reduction module comprises a toggle switch and a diode D7, the main control module is provided with a noise reduction end and a switch end, the toggle switch is connected with the noise reduction end, the toggle switch is connected with the switch end through the diode D7, and the control module is connected with the switch end.
2. The earphone circuit having a function of individually controlling noise reduction switches according to claim 1, wherein: the toggle switch comprises a body, a fixed end, a grounding end and a starting end, wherein the body is fixedly connected to the fixed end, the body is movably arranged between the grounding end and the starting end, and the main control module is used for supplying power to the starting end; the fixed end connect in fall the end of making an uproar, the fixed end warp diode D7 connect in the switch end.
3. The earphone circuit having a function of individually controlling noise reduction switches according to claim 1, wherein: the noise reduction module further comprises a resistor R21 and a resistor R24, the resistor R21 is arranged between the toggle switch and the noise reduction end, and the resistor R24 is arranged between the toggle switch and the diode.
4. The earphone circuit having a function of individually controlling noise reduction switches according to claim 1, wherein: the control module comprises a switch, a first voltage division circuit and a second voltage division circuit, the main control module is further provided with a control end and a power end, the power end is used for supplying power to the switch, the switch is connected to the end of the switch through the first voltage division circuit, and the switch is connected to the control end through the second voltage division circuit.
5. The earphone circuit having a function of individually controlling noise reduction switches according to claim 4, wherein: the control module further comprises a diode D14, the diode D14 is arranged between the switch and the first voltage division circuit, and the diode D14 is used for preventing the current at the switch end from flowing back to the switch.
6. The earphone circuit having a function of individually controlling noise reduction switches according to claim 4, wherein: the first voltage division circuit comprises a resistor R14 and a resistor R16, the switch is connected to the switch terminal through the resistor R14, the resistor R16 is connected between the resistor R14 and the switch terminal, and the resistor R14 is grounded through the resistor R16.
7. The earphone circuit having a function of individually controlling noise reduction switches according to claim 4, wherein: the second voltage division circuit comprises a resistor R31 and a resistor R32, the switch is connected to the control end through the resistor R32, the resistor R31 is arranged between the resistor R32 and the control end, and the resistor R32 is grounded through the resistor R31.
8. The earphone circuit having a function of individually controlling noise reduction switches according to claim 1, wherein: the main control module comprises a power supply and a control chip, wherein the power supply is connected to the control chip, and the noise reduction end and the switch machine end are both arranged on the control chip.
9. The earphone circuit having a function of individually controlling noise reduction switches according to claim 8, wherein: the model of the control chip is BES 2300Z.
10. The earphone circuit having a function of individually controlling noise reduction switches according to claim 8, wherein: still include triode Q1, control chip still is provided with the IO end, triode Q1's base connect in fall the end of making an uproar, the collecting electrode of triode connect in fall the end of making an uproar with between the IO end, the projecting pole ground connection of triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121790714.9U CN215010685U (en) | 2021-08-02 | 2021-08-02 | Earphone circuit with function of independently controlling noise reduction switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121790714.9U CN215010685U (en) | 2021-08-02 | 2021-08-02 | Earphone circuit with function of independently controlling noise reduction switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215010685U true CN215010685U (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121790714.9U Active CN215010685U (en) | 2021-08-02 | 2021-08-02 | Earphone circuit with function of independently controlling noise reduction switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215010685U (en) |
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2021
- 2021-08-02 CN CN202121790714.9U patent/CN215010685U/en active Active
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