CN207869325U - A kind of double key control circuits and audio-frequence player device - Google Patents
A kind of double key control circuits and audio-frequence player device Download PDFInfo
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- CN207869325U CN207869325U CN201721920882.9U CN201721920882U CN207869325U CN 207869325 U CN207869325 U CN 207869325U CN 201721920882 U CN201721920882 U CN 201721920882U CN 207869325 U CN207869325 U CN 207869325U
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Abstract
The utility model discloses a kind of double key control circuits and audio-frequence player devices.Double key control circuits include the first button, the second button and synchronous control circuit；The input terminal of first button connects the first power supply, and the output end of the first button connects the power end of control equipment to be controlled, is configured as switching on or off the first power supply to the power end of control equipment to be controlled；The input terminal of second button connects the output end of the first button, and the input terminal of the output end connection synchronous control circuit of the second button is configured as connecting the first power supply to synchronous control circuit；Two synchronous output ends of synchronous control circuit are separately connected the power end and multi-function terminal of control equipment to be controlled, are configured as being connected when the second button connects the first power supply, while exporting synchronous control signal to the power end of control equipment to be controlled and multi-function terminal.By controlling the first button and the second button of double key control circuits, power on/off function, and reliable dual-port multi-functional control switching may be implemented.
Description
Technical field
The utility model is related to a kind of double key control circuits and audio-frequence player devices.
Background technology
Bluetooth headset receives people and likes since compact is easy to carry, especially takes phone to driving in recent years
Hitting dynamics continues to increase, and demand of the people to bluetooth headset is even more growing day by day, and required bluetooth headset function includes sound
Happy broadcasting, receiving talking etc..However, due to bluetooth headset miniature requirement, reliable convenience is lacked in existing bluetooth headset
Ground controls the control device of bluetooth headset multiple functions, and most of to also need to the terminal software that operation connect with bluetooth headset next in fact
It is existing, it is inconvenient.
Accordingly, it is desirable to provide a kind of convenient and reliable control button circuit, to realize the audio-frequence player devices such as bluetooth headset
The control of multiple functions.
Utility model content
The problem of lacking reliable convenient control device in view of audio-frequence player devices such as prior art bluetooth headsets, it is proposed that
A kind of double key control circuits of the utility model and a kind of audio-frequence player device, to overcome the above problem or at least partly
Ground solves the above problems.
According to the one side of the utility model, a kind of double key control circuits are provided, including the first button, second press
Key and synchronous control circuit；The input terminal of first button connects the first power supply, and the output end of the first button connects control equipment to be controlled
Power end, be configured as switching on or off the first power supply to the power end of control equipment to be controlled；The input terminal of second button connects
The output end of first button, the input terminal of the output end connection synchronous control circuit of the second button, is configured as connecting the first electricity
Source is to synchronous control circuit；Two synchronous output ends of synchronous control circuit are separately connected the power end of control equipment to be controlled and more work(
Can end, be configured as being connected when the second button connects the first power supply, while to the power end and multi-function terminal of control equipment to be controlled
Export synchronous control signal.
Optionally, multi-function terminal is connected to second source by pull-up resistor R6；First power supply is battery supply, second source
For with the matched power supply of the multifunctional control circuit of control equipment to be controlled.
Optionally, synchronous control circuit includes：Symmetrically arranged first pull-down circuit and the second pull-down circuit, are pressed second
When bonded logical first power supply, the first pull-down circuit and the second pull-down circuit simultaneously turn on, by the power end of control equipment to be controlled and
Multi-function terminal is down for low level.
Optionally, the first pull-down circuit includes triode Tr1, resistance R2 and resistance R3；One end connection second of resistance R2
The output end of button, the base stage of the other end connecting triode Tr1 of resistance R2, the collector connection of triode Tr1 is to be controlled to be set up
Standby power end, the emitter ground connection of triode Tr1, resistance R3 are connected between the base stage and emitter of triode Tr1；
Second pull-down circuit includes triode Tr2, resistance R4 and resistance R5, and one end of resistance R5 connects the defeated of the second button
The collector of outlet, the base stage of the other end connecting triode Tr2 of resistance R5, triode Tr2 connects more work(of control equipment to be controlled
Energy end, the emitter ground connection of triode Tr2, resistance R4 are connected between the base stage and emitter of triode Tr2.
Optionally, the first button is slide switch button SW1, and slide switch button SW1 further includes ground terminal, ground connection termination
Ground；Slide switch button SW1 slides into and connects the first power supply when input terminal is connect with output end, the SW1 slidings of slide switch button
The first power supply is disconnected when being connect to ground terminal with output end.
Optionally, the output end of the first button is connected to the power end of control equipment to be controlled through resistance R1.
Optionally, the input terminal of the first button is connected with the first regulator circuit.
Optionally, the input terminal of the second button and output end are connected separately with the second regulator circuit and third regulator circuit.
Optionally, the second button is light-touch switch key-press SW2.
According to the other side of the utility model, a kind of audio-frequence player device is provided, audio-frequence player device setting
Just like any one of upper double key control circuits.
This double key control circuit includes the first button, the second button and synchronous control circuit, and the first button of operation can be with
It is switched on or switched off the first power supply to control equipment power end to be controlled, to realize power on/off function, under open state, operation second is pressed
Synchronous control circuit can be connected in key, to the power end and multi-function terminal synchronism output synchronous control signal of control equipment to be controlled, by
It, can be to avoid only using multi-function terminal one in the mode for the synchronous control for using two ports of power end and multi-function terminal
The control function of the problem for being vulnerable to interference when port, leading to function confusion, dual-port is relatively reliable.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for double key control circuits that the utility model one embodiment provides；
Fig. 2 is a kind of circuit connection diagram for double key control circuits that the utility model one embodiment provides；
Fig. 3 is a kind of structural schematic diagram for audio-frequence player device that the utility model one embodiment provides.
Specific implementation mode
It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
By designing double key control circuits, realizes switching on and off for power supply using the first button, realize switching on and shutting down work(
Can, in the state of realizing booting using the first button, synchronous control circuit can be connected in the second button of pressing, with to be controlled
The power end and multi-function terminal of equipment export synchronous control signal, to utilize the power end and multi-function terminal two of control equipment to be controlled
Realize that function control, the control of dual-port are relatively reliable in a port.
Fig. 1 is a kind of structural schematic diagram for double key control circuits that the utility model one embodiment provides, and Fig. 2 is this
A kind of circuit connection diagram for double key control circuits that utility model one embodiment provides.
As shown in Figure 1, a kind of double key control circuits, including the first button, the second button and synchronous control circuit.
The input terminal of first button connects the first power supply, and the output end of the first button connects the power end of control equipment to be controlled,
It is configured as switching on or off the first power supply to the power end of control equipment to be controlled, to realize power on/off function；Second button
Input terminal connects the output end of the first button, and the input terminal of the output end connection synchronous control circuit of the second button is configured as
The first power supply is connected to synchronous control circuit；Two synchronous output ends of synchronous control circuit are separately connected the electricity of control equipment to be controlled
Source and multi-function terminal are configured as being connected when the second button connects the first power supply, while to the power end of control equipment to be controlled
Synchronous control signal is exported with multi-function terminal, the control to multiple functions is realized by the synchronous control signal.
To individually turn on the first button, power on/off function may be implemented, be connected in the first button and enter open state
Afterwards, then the second button is pressed, synchronous control circuit can be connected, with same to the power end of control equipment to be controlled and multi-function terminal output
Step control signal makes to be controlled to realize function control using two ports of the power end of control equipment to be controlled and multi-function terminal
Equipment detects the synchronous control signal of two ports simultaneously, reliably realizes the function control switching of control equipment to be controlled.
With reference to shown in 2 circuit connection diagram of figure, the first button is that the input terminal of slide switch button SW1, SW1 are port 1, is connect
First power vd 2.The output end of SW1 is port 2.Slide switch button SW1 further includes ground terminal, i.e. the ports SW1 3,4 and 5, is connect
Ground terminal is grounded.When slide switch button SW1 slides into input terminal 1 and connect with output end 2, the first power supply is connected, control is to be controlled
When device power-up, slide switch button SW1 slide into ground terminal 3 and connect with output end 2, the first power supply is disconnected, control is to be controlled
Equipment is shut down.
Second button is light-touch switch key-press SW2, and 1 end is input terminal, and 2 ends are output end.
In the embodiments of the present invention, with reference to shown in 2 circuit connection diagram of figure, the first power vd 2 is pressed through slide switch
Key SW1 and resistance R1 is connected to the power end PWR_ON of control equipment to be controlled, multi-function terminal MFB (multifunction buffer, contracting
Write MFB) second source VD1 is connected to by pull-up resistor R6.Wherein, the first power vd 2 of the first button SW1 accesses is battery electricity
Source, the second source VD1 that multi-function terminal MFB is connect by pull-up resistor R6 are the multifunctional control circuit with control equipment to be controlled
The power supply matched, to realize when not exporting synchronous control signal, the difference of switching on and shutting down voltage and multi-functional control voltage
Matching, does not interfere with each other.
In the embodiments of the present invention, synchronous control circuit includes：Symmetrically arranged first pull-down circuit and second
Pull-down circuit, when the second button connects the first power supply, the first pull-down circuit and the second pull-down circuit simultaneously turn on, will be to be controlled
The power end and multi-function terminal of equipment are down for low level.The low level signal generated using the synchronization realizes standby suspend mode/call out
It wakes up, functions, the first pull-down circuit and second pull-down circuit such as music play/pause and talkthrough/hang up are set as symmetrical junction
Structure realizes the synchronism output of signal.
In the embodiments of the present invention, as shown in Fig. 2, the first pull-down circuit includes triode Tr1, resistance R2 and electricity
Hinder R3；The output end of the second button SW2 of one end connection of resistance R2, the base stage of the other end connecting triode Tr1 of resistance R2, three
The collector of pole pipe Tr1 connects the power end PWR_ON of control equipment to be controlled, the emitter ground connection of triode Tr1, resistance R3 connections
Between the base stage and emitter of triode Tr1.
Symmetrically with the first pull-down circuit, the second pull-down circuit includes triode Tr2, resistance R4 and resistance R5, resistance R5
One end connect the second button SW2 output end, the base stage of the other end connecting triode Tr2 of resistance R5, the collection of triode Tr2
Electrode connects the multi-function terminal MFB of control equipment to be controlled, the emitter ground connection of triode Tr2, and resistance R4 is connected to triode Tr2's
Between base stage and emitter.
Wherein, the more close the characteristic of triode Tr1 and triode Tr2 the better, causes function mixed with test free signal difference
Disorderly, in circuit shown in Fig. 2, triode Tr1 and triode Tr2 are two triodes on same triode chip U1.
In the embodiments of the present invention, the output end 2 of the first button SW1 is connected to control equipment to be controlled through resistance R1
Power end.
In the embodiments of the present invention, as shown in Fig. 2, the input terminal 1 of the first button SW1 is connected with the first voltage stabilizing electricity
Road D1.
In the embodiments of the present invention, the input terminal 1 and output end 2 of the second button SW2 are connected separately with second surely
Volt circuit D3 and third regulator circuit D2.
The invention also discloses a kind of audio-frequence player device, which is provided with pair any one of as above
Key control circuit.The audio-frequence player device can be bluetooth headset, and by above-mentioned double key control circuits, bluetooth may be implemented
The switching on and shutting down of earphone control, and pairing connection, Standby sleep/wake-up, talkthrough/hang up in music pause/broadcasting
One or more functions.
Fig. 3 is a kind of structural schematic diagram for audio-frequence player device that the utility model one embodiment provides, such as Fig. 3 institutes
Show, the power end PWR_ON and multi-function terminal MFB of double key control circuits are respectively connected to the bluetooth module of audio-frequence player device
Circuit, to realize power on/off function and multi-functional control by bluetooth modular circuit.By taking bluetooth headset as an example, in conjunction with shown in Fig. 3
Structural schematic diagram illustrates operation principle of the circuit in bluetooth headset：
By stirring slide switch SW1, realize that 1, the 2 pins connection of SW1, power vd 2 make PWR_ON be high level, the height
Level signal goes control bluetooth modular circuit to realize earphone power up function；Make 2,3 pin connected states when slide switch SW1 is pushed
State, then so that PWR_ON is low level, which goes control bluetooth modular circuit to realize earphone shut-off function；Work as earphone
In open state, SW2 is pressed at this time, power vd 2 can be such that two triodes of Tr1 and Tr2 of chip U1 simultaneously turn on, to make
The signal of PWR_ON and MFB is all low level, and by detecting the synchronization low level signal, earphone can enter pairing state；If
Within a certain period of time without carrying out the operations such as music and call, then earphone can at this time be pressed automatically into deep sleep
SW2 once, earphone can breaking dormancy states by detecting the synchronization low level signal；When there is phone to dial in, bluetooth headset meeting
Sleep function is automatically terminated, in the function that receives calls, clicking button SW2 makes PWR_ON and MFB signals be low level, realizes
Receive calls function, and SW2 is pressed during call and then realizes end call function；Earphone clicks SW2 buttons when playing music
Broadcasting music can be suspended, then click and will continue to play music.Above-mentioned various functions can be by bluetooth modular circuit chips
Bluetooth protocol realize, realize various functions trigger signal be this double key control circuit send out both-end synchronous control letter
Number, it is relatively reliable using the control function of dual-port, it can be missed to avoid single-port due to being interfered caused by mains voltage variations
It touches.
This double key control circuit includes the first button, the second button and synchronous control circuit, and the first button of operation can be with
It is switched on or switched off the first power supply to control equipment power end to be controlled, to realize power on/off function, under open state, operation second is pressed
Synchronous control circuit can be connected in key, to the power end and multi-function terminal synchronism output synchronous control signal of control equipment to be controlled, by
It, can be to avoid only using multi-function terminal one in the mode for the synchronous control for using two ports of power end and multi-function terminal
The control function of the problem for being vulnerable to interference when port, leading to function confusion, dual-port is relatively reliable.
Above description is only a specific implementation of the present invention, under the above-mentioned introduction of the utility model, this field
Technical staff can carry out other improvement or deformation on the basis of the above embodiments.It will be understood by those skilled in the art that
Above-mentioned specific descriptions only preferably explain the purpose of this utility model, and the scope of protection of the utility model should be with claim
Protection domain subject to.
Claims (10)
1. a kind of double key control circuits, which is characterized in that including the first button, the second button and synchronous control circuit；
The input terminal of first button connects the first power supply, and the output end of first button connects the power supply of control equipment to be controlled
End, is configured as switching on or off the first power supply to the power end of control equipment to be controlled；
The input terminal of second button connects the output end of first button, described in the output end connection of second button
The input terminal of synchronous control circuit is configured as connecting first power supply to the synchronous control circuit；
Two synchronous output ends of the synchronous control circuit are separately connected the power end and multi-function terminal of the control equipment to be controlled,
It is configured as being connected when second button connects the first power supply, while to the power end of the control equipment to be controlled and multi-functional
End output synchronous control signal.
2. double key control circuits according to claim 1, which is characterized in that the multi-function terminal passes through pull-up resistor R6
It is connected to second source；First power supply is battery supply, and the second source is and the multi-functional control of control equipment to be controlled electricity
The matched power supply in road.
3. double key control circuits according to claim 2, which is characterized in that the synchronous control circuit includes：Symmetrically
The first pull-down circuit and the second pull-down circuit being arranged, when second button connects the first power supply, the first drop-down electricity
Road and second pull-down circuit simultaneously turn on, by the power end of the control equipment to be controlled and multi-function terminal down for low electricity
It is flat.
4. double key control circuits according to claim 3, which is characterized in that
First pull-down circuit includes triode Tr1, resistance R2 and resistance R3；One end connection described second of the resistance R2
The output end of button, the other end of the resistance R2 connect the base stage of the triode Tr1, the collector of the triode Tr1
The power end of the control equipment to be controlled, the emitter ground connection of the triode Tr1 are connected, the resistance R3 is connected to three pole
Between the base stage and emitter of pipe Tr1；
Second pull-down circuit includes one end connection described second of triode Tr2, resistance R4 and resistance R5, the resistance R5
The output end of button, the other end of the resistance R5 connect the base stage of the triode Tr2, the collector of the triode Tr2
The multi-function terminal of the control equipment to be controlled, the emitter ground connection of the triode Tr2 are connected, the resistance R4 is connected to described three
Between the base stage and emitter of pole pipe Tr2.
5. double key control circuits according to claim 1, which is characterized in that first button is slide switch button
SW1, the slide switch button SW1 further includes ground terminal, the ground terminal ground connection；The slide switch button SW1 slides into
The input terminal connects the first power supply when being connect with the output end, the slide switch button SW1 slides into the ground terminal
The first power supply is disconnected when being connect with the output end.
6. double key control circuits according to claim 1, which is characterized in that the output end of first button is through resistance
R1 is connected to the power end of the control equipment to be controlled.
7. double key control circuits according to claim 1, which is characterized in that the input terminal of first button is connected with
First regulator circuit.
8. double key control circuits according to claim 1, which is characterized in that the input terminal of second button and output
End is connected separately with the second regulator circuit and third regulator circuit.
9. double key control circuits according to claim 1, which is characterized in that second button is light-touch switch key-press
SW2。
10. a kind of audio-frequence player device, which is characterized in that the audio-frequence player device is provided with according to any one of claim 1-9
Double key control circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721920882.9U CN207869325U (en) | 2017-12-29 | 2017-12-29 | A kind of double key control circuits and audio-frequence player device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721920882.9U CN207869325U (en) | 2017-12-29 | 2017-12-29 | A kind of double key control circuits and audio-frequence player device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207869325U true CN207869325U (en) | 2018-09-14 |
Family
ID=63464195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721920882.9U Active CN207869325U (en) | 2017-12-29 | 2017-12-29 | A kind of double key control circuits and audio-frequence player device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207869325U (en) |
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2017
- 2017-12-29 CN CN201721920882.9U patent/CN207869325U/en active Active
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