CN217135648U - Wired earphone microphone indicating circuit and wired earphone - Google Patents
Wired earphone microphone indicating circuit and wired earphone Download PDFInfo
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- CN217135648U CN217135648U CN202221091148.7U CN202221091148U CN217135648U CN 217135648 U CN217135648 U CN 217135648U CN 202221091148 U CN202221091148 U CN 202221091148U CN 217135648 U CN217135648 U CN 217135648U
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Abstract
The utility model relates to a wired earphone microphone's technical field especially relates to a wired earphone microphone indicating circuit and wired earphone. The microphone comprises a microphone output circuit and a switch control circuit; the microphone output circuit comprises a power supply input end, a switching tube and a microphone, wherein the microphone is connected with the power supply input end through the switching tube, and the control end of the switching tube is connected with the power supply input end; the switch control circuit comprises a triode component, the input end of the triode component is connected with the control end of the switch tube, and the output end of the triode component is grounded; the switch control circuit comprises a phase inverter switch module and an indicator light module, wherein the input end of the phase inverter switch module is connected with the power input end of the microphone output circuit, and the output end of the phase inverter switch module is connected with the input end of the indicator light module and the control end of the triode component respectively. The utility model discloses a circuit is simple reliable, can audio-visually instruct wired earphone microphone state, has improved user's use and has experienced, increases the market competition of product.
Description
Technical Field
The utility model relates to a wired earphone microphone's technical field especially relates to a wired earphone microphone indicating circuit and wired earphone.
Background
The earphone is a pair of conversion units which receive the electric signals from the media player or receiver and convert them into audible sound waves by using a speaker near the ear. The earphone can be separated from the media player, can be connected by only using one plug, and can listen to the sound independently without influencing other people; can also isolate the sound of the surrounding environment, and is very helpful for people who use in a noisy environment such as a recording studio, a bar, a trip, sports, and the like.
At present, most wired earphones are provided with microphones, but most wired earphones in the market are not provided with a microphone pickup switch function, or have a switch function but cannot effectively indicate the switch function, for example, a user cannot know whether the microphone on the earphone of the user is in an open state in the using process, and can often inquire the other side to know whether the microphone is open or not during conversation, so that the use experience of the user is influenced.
Disclosure of Invention
The utility model discloses a solve current wired earphone and do not have microphone pickup switch function or can't effectively carry out the technical problem who instructs its switch function, provide a wired earphone microphone indicating circuit and wired earphone.
In order to solve the technical problem, the technical scheme of the utility model as follows:
a wired earphone microphone indicating circuit is characterized by comprising a microphone output circuit and a switch control circuit; the microphone output circuit comprises a power supply input end, a switch tube and a microphone, the microphone is connected with the power supply input end through the switch tube, and the control end of the switch tube is connected with the power supply input end; the switch control circuit comprises a triode component, the input end of the triode component is connected with the control end of the switch tube, and the output end of the triode component is grounded; the switch control circuit comprises a phase inverter switch module and an indicator light module, wherein the input end of the phase inverter switch module is connected with the power input end of the microphone output circuit, and the output end of the phase inverter switch module is respectively connected with the input end of the indicator light module and the control end of the triode component; the inverter switch module controls the on and off of the switch tube and the indicator light module through controlling the high and low levels of the output end.
Furthermore, the switch tube is a first triode, an emitting electrode and a collecting electrode of the first triode are respectively connected with the power input end and the input end of the microphone, a base electrode of the first triode is connected with the power input end through a current-limiting resistor, and the base electrode of the first triode is grounded through a triode component.
Further, the first triode is a PNP type triode.
Further, the microphone comprises a built-in microphone and an external microphone.
Further, the triode component comprises a second triode and a third triode; the collector of the second triode is connected with the control end of the switch tube, the emitter of the second triode is grounded, and the base of the second triode is connected with the collector of the third triode; and the collector of the third triode is connected with the power input end of the microphone output circuit, the emitter of the third triode is grounded, and the base of the third triode is connected with the output end of the inverter switch module.
Further, the second triode and the third triode are NPN type triodes.
Furthermore, the inverter switch module comprises an inverter and a press switch, the input end of the inverter is connected with the power input end of the microphone output circuit, and the output end of the inverter is connected with the input end of the triode component and the input end of the indicator light module; the control end is grounded through the press switch, and the output level of the output end is switched when the press switch is pressed and triggered.
Further, the inverter adopts an SN74LVC2G14DBVR type inverter.
Furthermore, the indicator light module comprises a current-limiting resistor and an indicator light, the input end of the indicator light is connected with the output end of the inverter switch module through the current-limiting resistor, and the output end of the indicator light is grounded.
The utility model also provides a wired earphone, including foretell wired earphone microphone indicating circuit.
The utility model discloses a phase inverter switch module realizes opening of switch tube and turns off, accomplishes the microphone and at the switching of pickup and silence state, and the state through the pilot lamp switches simultaneously, realizes the state indication to wired earphone microphone, and this circuit is simple reliable, can audio-visual instruct wired earphone microphone state to user's use experience has been improved, the market competition of increase product.
Drawings
Fig. 1 is a circuit structure diagram of the microphone indicating circuit of the wired earphone of the embodiment of the present invention.
Fig. 2 is a structural diagram of an output circuit of a microphone according to an embodiment of the present invention.
Fig. 3 is a structural diagram of a switch control circuit according to an embodiment of the present invention.
Wherein:
the microphone output circuit is 10, and the switch control circuit is 20.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention will be combined to clearly and completely describe the technical solutions of the embodiments of the present invention. The described embodiments are some, but not all embodiments of the invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
Fig. 1 is a circuit configuration diagram showing a microphone indicating circuit of a wired earphone in the present embodiment; fig. 2 shows a structural diagram of the microphone output circuit 10 in the present embodiment; fig. 3 shows a block diagram of the switch control circuit 20 in the present embodiment.
In view of wired earphone on the current market mostly does not have microphone pickup switch function, or has switch function but can't effectively instruct its switch function, when the user in the use, can't learn fast whether the microphone on oneself earphone is in the on-state, often need can learn the technical problem whether its microphone is opened to the other side inquiry during the conversation, this problem has influenced the use experience of user when using wired earphone to converse or record. Therefore, the present embodiment provides an indication circuit for a wired earphone microphone, which controls the on/off of a switch tube through a switch module of an inverter, and completes the on/off control of an indicator light D1 while controlling the on/off of the switch tube, and finally utilizes an indicator light D1 to effectively indicate whether the microphone collects sound, for example, the indicator light D1 is turned on when the microphone collects sound and the indicator light D1 is turned off when the microphone is in a sound collection state, so that a user can intuitively know whether the sound collection function of the microphone of an effective earphone is in an operation state.
Specifically, referring to fig. 1-3, the present embodiment provides a wired earphone microphone indicating circuit, which includes a microphone output circuit 10 and a switch control circuit 20, wherein the microphone output circuit 10 is mainly used for providing power input for a microphone in a wired earphone so that the microphone can normally operate, and of course, a switch tube is disposed in the circuit, and the connection between the microphone and the power input end is controlled by the switch tube, that is, whether the voltage received by the microphone is present or not is controlled, so as to control the sound pickup function of the microphone. The switch control circuit 20 is used for implementing on-off trigger control of the microphone sound pickup function and implementing indication of the microphone sound pickup function.
In a specific structure, the microphone output circuit 10 includes a power input terminal, a switching tube and a microphone, wherein the power input terminal is connected to a microphone access port of the mobile phone terminal or the computer terminal, so as to communicate the wired earphone microphone with the mobile phone terminal or the computer terminal. In connection, the microphone is connected with the power input end through the switch tube, and the control end of the switch tube is connected with the power input end. The switch control circuit 20 includes a triode component, the input end of the triode component is connected with the control end of the switch tube, and the output end is grounded; the switch control circuit 20 comprises a phase inverter switch module and an indicator light module, wherein the input end of the phase inverter switch module is connected with the power input end of the microphone output circuit 10, and the output end of the phase inverter switch module is respectively connected with the input end of the indicator light module and the control end of the triode component; the inverter switch module controls the on and off of the switch tube and the indicator light module through controlling the high and low levels of the output end.
Preferably, after power is on, the control end of the switch tube obtains voltage from the power input end, and is at a high level, at this time, the microphone is in a sound pickup state, and the indicator light D1 has no voltage input and is in an off state. When a user presses the press switch S1 in the phase inverter switch module, the output end of the phase inverter switch module outputs a high level, the triode component is changed into a conducting state, the control end of the switch tube is pulled down, the switch tube is turned off, the microphone enters a mute state at the moment, meanwhile, the high level output by the phase inverter switch module is received by the indicator light module, and the indicator light D1 lights up, so that the current microphone is indicated to be in the mute state. When the user presses the press switch S1 in the phase inverter switch module again, the output end of the phase inverter switch module outputs low level, here the triode component is changed into off state, the control end of the switch tube is put high by the power input end, the switch tube is conducted, the microphone is turned on, the microphone enters the pickup state at the moment, meanwhile, the indicator light D1 has no voltage input and is in the off state, thereby indicating that the current microphone is in the pickup state.
The advantage of this embodiment lies in, the wired earphone microphone indicating circuit of this embodiment can realize the switching-on and shutting off of switch tube through the phase inverter switch module, accomplishes the switching of microphone at pickup and silence state, switches over through pilot lamp D1's state simultaneously, realizes the state indication to wired earphone microphone, and this circuit is simple and reliable, can audio-visually instruct wired earphone microphone state to user's use experience has been improved, the market competition of increase product.
Example two
The embodiment provides a wired earphone microphone indicating circuit, which comprises a microphone output circuit 10 and a switch control circuit 20, wherein the microphone output circuit 10 comprises a power input end, a switch tube and a microphone, the microphone is connected with the power input end through the switch tube, and the control end of the switch tube is connected with the power input end; the switch control circuit 20 includes a triode component, the input end of which is connected with the control end of the switch tube, and the output end of which is grounded. The switch control circuit 20 includes a phase inverter switch module and an indicator light module, the input end of the phase inverter switch module is connected to the power input end of the microphone output circuit 10, and the output end is connected to the input end of the indicator light module and the control end of the triode component respectively.
The difference between the present embodiment and the first embodiment is that the present embodiment further provides some specific implementations.
Referring to fig. 1-3, in terms of a switch tube, preferably, the switch tube of the present embodiment is a first transistor Q1, wherein an emitter and a collector of the first transistor Q1 are respectively connected to a power input terminal and an input terminal of a microphone, a base is connected to the power input terminal through a current-limiting resistor, and a base of the first transistor Q1 is further grounded through a transistor assembly. More specifically, the first transistor Q1 in this embodiment is a PNP transistor.
In terms of the microphone, the microphone in this embodiment includes a built-in microphone and an external microphone, when the external microphone is not built in, the wired earphone uses the built-in microphone to pick up sound, when the external microphone is inserted into the interface, the built-in microphone is butted and placed in top, and at this time, the wired earphone uses the external microphone to pick up sound.
In the aspect of the switch control circuit 20, on one hand, the triode component as a component for adjusting the level of the control end of the switching transistor specifically includes a second triode Q2 and a third triode Q3, wherein, in the specific connection, the collector of the second triode Q2 is connected with the control end of the switching transistor, the emitter is grounded, and the base is connected with the collector of the third triode Q3; the collector of the third transistor Q3 is connected to the power input of the microphone output circuit 10, the emitter is grounded, and the base is connected to the output of the inverter switch module. Specifically, the second transistor Q2 and the third transistor Q3 are NPN transistors.
On the other hand, the inverter switch module comprises an inverter U1 and a push switch S1, wherein the input end of the inverter U1 is connected with the power input end of the microphone output circuit 10, and the output end is connected with the input end of the triode component and the input end of the indicator light module; the control terminal is grounded through the push switch S1, and switches the output level of the output terminal when the push switch S1 is pressed to trigger. For better operation experience, in the present embodiment, the inverter U1 adopts an SN74LVC2G14DBVR type inverter U1. It should be noted that, when the power is turned on by default, the output level of the inverter U1 is low, when the switch S1 is pressed once, the output level of the inverter U1 is switched to high, and when the switch S1 is pressed again, the output level is switched to low, and so on.
In terms of the indicator light D1, the indicator light module in this embodiment includes a current-limiting resistor and an indicator light D1, the input terminal of the indicator light D1 is connected to the output terminal of the inverter switch module through the current-limiting resistor, the output terminal is grounded, when the inverter U1 outputs a low level, the indicator light D1 is not turned on, and when the inverter U1 outputs a low level, the indicator light D1 is turned on and indicates.
For better operation experience, the specific connection mode and working principle of the embodiment are provided:
the voltage of the power input end in this embodiment is from the input voltage of the microphone port of the mobile phone end or the computer end, and after the voltage enters the circuit and is subjected to antistatic protection, one path of the voltage is filtered and then supplies power to the input pin of the phase inverter U1, and the other path of the voltage is supplied to the switching tube, wherein the path of the voltage is respectively connected with the input end and the control end of the switching tube, so that the switching tube is in a conducting state under the condition that the voltage of the triode component is not reduced, and further, the voltage supplies power to the microphone through the switching tube, and the pickup function of the switching tube is realized.
Specifically, when the interface inserted into the power input end is connected to the PC end or the mobile phone end, the microphone works as the default of power-on, the power supply route of the microphone is fed by the voltage of the power input end and then is connected to the anode of the microphone through the switch tube, so that the microphone pickup work is realized, and at the moment, the LED lamp is not bright. When the push switch S1 is pressed, the push switch S1 is a mute/pickup switch of the microphone, the output pin of the inverter U1 outputs a high voltage, which makes the transistor module conduct all the way, pulls down the control end of the switch tube to turn off the switch tube, and the other way supplies power to the indicator light D1, at this time, the microphone has no voltage input, and does not work for mute, and the indicator light D1 is normally on to indicate that the microphone is in a mute state.
EXAMPLE III
The present embodiment provides a wired earphone, which includes a wired earphone microphone indication circuit in the first embodiment or the second embodiment, and the circuit is used to implement indication of a mute or pickup state of a microphone in the wired earphone.
It should be noted that the wired headset of the present embodiment is a 3.5mm wired headset.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements 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 present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.
Claims (10)
1. A wired earphone microphone indicating circuit is characterized by comprising a microphone output circuit and a switch control circuit; the microphone output circuit comprises a power supply input end, a switch tube and a microphone, the microphone is connected with the power supply input end through the switch tube, and the control end of the switch tube is connected with the power supply input end; the switch control circuit comprises a triode component, the input end of the triode component is connected with the control end of the switch tube, and the output end of the triode component is grounded; the switch control circuit comprises a phase inverter switch module and an indicator light module, wherein the input end of the phase inverter switch module is connected with the power input end of the microphone output circuit, and the output end of the phase inverter switch module is respectively connected with the input end of the indicator light module and the control end of the triode component; the inverter switch module controls the on and off of the switch tube and the indicator light module through controlling the high and low levels of the output end.
2. The wired earphone microphone indicating circuit as claimed in claim 1, wherein the switch tube is a first triode, an emitter and a collector of the first triode are respectively connected to the power input terminal and the input terminal of the microphone, a base of the first triode is connected to the power input terminal through a current limiting resistor, and the base of the first triode is further grounded through a triode component.
3. The wired headset microphone indicating circuit of claim 2, wherein the first transistor is a PNP transistor.
4. The wired headset microphone indicating circuit of claim 1, wherein the microphone comprises an internal microphone and an external microphone.
5. The wired headset microphone indicating circuit of claim 1, wherein the triode component comprises a second triode and a third triode; the collector of the second triode is connected with the control end of the switch tube, the emitter of the second triode is grounded, and the base of the second triode is connected with the collector of the third triode; and the collector of the third triode is connected with the power input end of the microphone output circuit, the emitter of the third triode is grounded, and the base of the third triode is connected with the output end of the inverter switch module.
6. The wired headset microphone indicating circuit of claim 5, wherein the second and third transistors are NPN transistors.
7. The wired headset microphone indicating circuit of any of claims 1-6, wherein the inverter switch module comprises an inverter and a push switch, an input of the inverter is connected to a power input of the microphone output circuit, and an output is connected to an input of the triode component and an input of an indicator light module; the control end is grounded through the press switch, and the output level of the output end is switched when the press switch is pressed and triggered.
8. The wired earphone microphone indicating circuit of claim 7, wherein the inverter is an SN74LVC2G14DBVR type inverter.
9. The wired earphone microphone indicating circuit as claimed in claim 1, wherein the indicating lamp module comprises a current limiting resistor and an indicating lamp, an input end of the indicating lamp is connected with an output end of the inverter switch module through the current limiting resistor, and an output end of the indicating lamp is grounded.
10. A wired headset comprising a wired headset microphone indication circuit according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221091148.7U CN217135648U (en) | 2022-05-06 | 2022-05-06 | Wired earphone microphone indicating circuit and wired earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221091148.7U CN217135648U (en) | 2022-05-06 | 2022-05-06 | Wired earphone microphone indicating circuit and wired earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217135648U true CN217135648U (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221091148.7U Active CN217135648U (en) | 2022-05-06 | 2022-05-06 | Wired earphone microphone indicating circuit and wired earphone |
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| Country | Link |
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| CN (1) | CN217135648U (en) |
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2022
- 2022-05-06 CN CN202221091148.7U patent/CN217135648U/en active Active
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