CN107690813B - The power supply circuit of earphone and earphone - Google Patents
The power supply circuit of earphone and earphone Download PDFInfo
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- CN107690813B CN107690813B CN201780001471.6A CN201780001471A CN107690813B CN 107690813 B CN107690813 B CN 107690813B CN 201780001471 A CN201780001471 A CN 201780001471A CN 107690813 B CN107690813 B CN 107690813B
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- 239000003990 capacitor Substances 0.000 claims description 28
- 230000005611 electricity Effects 0.000 claims description 12
- 230000006870 function Effects 0.000 description 29
- 238000010586 diagram Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 241000209140 Triticum Species 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1025—Accumulators or arrangements for charging
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Direct Current Feeding And Distribution (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention relates to technical field of electronic products, the power supply circuit of a kind of earphone and earphone is disclosed.In the embodiment of the present application, the power supply circuit of earphone includes: the key circuit of the voltage on the Mike's line adjusted in earphone according to the trigger signal of the trigger member on earphone, according to the energy supply control module of voltage control power supply circuit switching the first powering mode of selection or the second powering mode on Mike's line；And redundant electrical power, energy supply control module are connected to key circuit and redundant electrical power simultaneously；Second powering mode is that energy supply control module allows redundant electrical power to be at least sensor module power supply；Normal power supply is to sensor module when the embodiment of the present application enables operation button to be pressed, solve the problems, such as that wired intellective earphone can not be powered when using operation button for sensor module, sensor module is coexisted with operation button, to guarantee earphone additional function and keypress function can normal use, provided convenience for the use of user.
Description
Technical field
The invention relates to technical field of electronic products, in particular to the power supply circuit of a kind of earphone and earphone.
Background technique
As the electronic equipments such as mobile phone, tablet computer are widely used in daily life, electronic components (such as ear
Machine) also become the commonly used equipment of people；Wherein, the appearance of wired intellective earphone receives the welcome of people, works as wired intellective
When earphone is connect with electronic equipment, the basic function of earphone can not only be provided for people, additionally it is possible to provide some additional functions
(such as heart rate detecting function, step function, blood pressure detecting function etc.), provides convenience for people's lives.
However, it is found by the inventors that following problem exists in the prior art: existing wired intellective earphone is realizing earphone
When basic function and additional function, external mechanical switch is needed to switch over, it is cumbersome；And be not provided on earphone operation by
Key (such as volume plus/minus key), causes wired intellective earphone not have keypress function, increases inconvenience for the use of user, so that
User experience is bad.
In addition, on existing wired intellective earphone, if setting operation button is to guarantee that wired intellective earphone has key
Voltage on Mike's line can be pulled to very low (generally at 0~600 millivolt), caused for ear by function then when operation button is pressed
Machine provides the brownout (can not power when i.e. operation button is pressed for sensor module) of the sensor module of additional function, from
And sensor module can not work normally, affect the use of the additional function of earphone；That is, existing wired intellective earphone
After being added on the basis of common headphones with the sensor module of additional function, operation button, operation cannot be used
Key can not coexist with sensor module.
Summary of the invention
The power supply circuit for being designed to provide a kind of earphone and earphone of the embodiment of the present application embodiment, so that operation is pressed
Key when being pressed can normal power supply to sensor module, solving wired intellective earphone can not be to pass when using operation button
Sensor module power the problem of, sensor module is coexisted with operation button, thus guarantee earphone additional function and
Keypress function can normal use, provided convenience for the use of user.
In order to solve the above technical problems, embodiments herein provides a kind of power supply circuit of earphone, comprising: according to ear
The trigger signal of trigger member on machine adjusts the key circuit of the voltage on Mike's line in earphone, and the voltage on Mike's line is with touching
The variation of signalling and change；The first powering mode or the second confession are selected according to the voltage control power supply circuit switching on Mike's line
The energy supply control module of power mode；And redundant electrical power, energy supply control module are connected to key circuit and redundant electrical power simultaneously；The
One powering mode is that the sensor module that energy supply control module allows external power supply to be at least earphone is powered；Second powering mode is
Energy supply control module allows redundant electrical power to be at least sensor module power supply.
In terms of existing technologies, the power supply circuit of earphone includes key circuit, power supply control to embodiments herein
Module and redundant electrical power.That is, energy supply control module is connected to key electricity simultaneously in power supply circuit provided by the embodiments of the present application
Road and redundant electrical power；Key circuit can adjust the voltage on Mike's line, power supply according to the trigger signal of the trigger member on earphone
Control module controls power supply circuit by the sensor module power switching that external power supply is earphone according to the voltage on Mike's line
Redundant electrical power is sensor module power supply.That is, when the present embodiment is pressed trigger member, earphone can normal power supply to sensing
Device module, to solve the problems, such as that wired intellective earphone can not be powered when using operation button for sensor module；So that
Sensor module can coexist in wired intellective earphone with operation button (key circuit i.e. in the application), the ear that ensure that
The keypress function of machine and the normal use of additional function, to improve user experience.
In addition, energy supply control module includes first switch and second switch；The first end of first switch is connected to Mike's line,
The second end of first switch is connected to key circuit, redundant electrical power and sensor module, and the control terminal of first switch is connected to
Mike's line；The first end of second switch is connected to the second end of first switch, and the second end of second switch is connected to Mike's module,
The control terminal of second switch is connected to Mike's line；When the voltage on Mike's line is high level, first switch is equal with second switch
In the conductive state, energy supply control module control power supply circuit is in the first powering mode；When trigger signal will be on Mike's line
When voltage is adjusted to low level, first switch and second switch enter off-state, and energy supply control module controls power supply circuit
Into the second powering mode.In the present embodiment, a kind of implementation of physical circuit of energy supply control module is provided.
In addition, energy supply control module is diode；The anode of diode is connected to Mike's line, and the cathode of diode at least connects
It is connected to key circuit, redundant electrical power and sensor module；When the voltage on Mike's line is high level, diode is on
State, energy supply control module control power supply circuit are in the first powering mode；When trigger signal adjusts the voltage on Mike's line
When for low level, diode enters off state, and energy supply control module controls power supply circuit and enters the second powering mode.This implementation
In example, the implementation of another physical circuit of energy supply control module is provided.
In addition, energy supply control module includes first switch tube, second switch, third switching tube and the 4th switching tube；The
The grid or base stage of one switching tube are connected to Mike's line, and source electrode or emitter ground connection, drain electrode or collector are connected to Mike
Line；The grid or base stage of second switch are connected to drain electrode or the collector of first switch tube, and source electrode or emitter are connected to
Mike's line, drain electrode or collector are connected to key circuit, redundant electrical power and sensor module；The grid or base of third switching tube
Pole is connected to Mike's line, source electrode or emitter ground connection, and drain electrode or collector are connected to the drain electrode of first switch tube；4th opens
The grid or base stage that close pipe are connected to drain electrode or the collector of third switching tube, and source electrode or emitter are connected to second switch
Drain electrode or collector, drain electrode or collector be connected to Mike's module of earphone.In the present embodiment, power supply control mould is provided
Another physical circuit implementation of block.
In addition, energy supply control module includes third switch, the 4th switch, logic control circuit and clock circuit；Mike
The first end of third switch is connected to Mike's Mike's line, the second end of Mike's third switch be connected to Mike's logic control circuit,
The control terminal of Mike's redundant electrical power and Mike's sensor module, Mike's third switch is connected to Mike's logic control circuit；Wheat
The first end of gram the 4th switch is connected to the second end of Mike's first switch, and the second end that Mike the 4th switchs is connected to Mike's ear
Mike's module of machine, the control terminal that Mike the 4th switchs are connected to Mike's logic control circuit；The both ends of Mike's clock circuit point
It is not connected to Mike's redundant electrical power and Mike's logic control circuit；Mike's logic control circuit is also attached to key circuit.This reality
It applies in example, provides another physical circuit implementation of energy supply control module.
In addition, key circuit further include capacitor for controlling the duration of trigger signal, the first divider resistance and
Second divider resistance；The first end of Mike's capacitor is connected to the second end of the second key switch of Mike；The second end of Mike's capacitor
It is grounded by the second divider resistance of Mike；The first divider resistance of Mike is connected in parallel with Mike's capacitor；The second end of Mike's capacitor
It is also attached to the control terminal of second voltage drop-down unit.In the present embodiment, due to capacitor, the first divider resistance and the second partial pressure
The presence of resistance, when the second key switch receives trigger signal, key circuit can generate the negative arteries and veins of certain time width
The time width of punching, the negative pulse can be by terminal recognition, and can generate different time width according to different triggering keys
Negative pulse；That is, key circuit can control the time for dragging down voltage on Mike's line, so that terminal not only has the sufficient time to know
Low level on other Mike's line, moreover it is possible to guarantee that redundant electrical power is at least the normal power supply of sensor module.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this Shen
Some embodiments please for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the schematic diagram of the power supply circuit of earphone according to first embodiment；
Fig. 2 is the schematic diagram according to the power supply circuit of the earphone of second embodiment；
Fig. 3 is the schematic diagram according to the power supply circuit of the earphone of third embodiment；
Fig. 4 is the schematic diagram according to the power supply circuit of the earphone of the 4th embodiment；
Fig. 5 is the schematic diagram according to the power supply circuit of the earphone of the 5th embodiment；
Fig. 6 is the schematic diagram according to the power supply circuit of the earphone of sixth embodiment.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with attached drawing to each reality of the application
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the application,
In order to make the reader understand this application better, many technical details are proposed.But even if without these technical details and base
In the various changes and modifications of following embodiment, the application technical solution claimed also may be implemented.
The first embodiment of the application is related to a kind of power supply circuit of earphone, is applied to include Mike's module, sensor
The wired intellective earphone of module and Mike's line.As shown in Figure 1, the power supply circuit of earphone includes: energy supply control module 1, key
Circuit 2 and redundant electrical power 4.
In present embodiment, energy supply control module 1 is connected to key circuit 2,3 redundant electrical power 4 of Mike's module, sensing simultaneously
Device module 5 and Mike's line 6.Key circuit 2 is used to adjust Mike's line 6 in earphone according to the trigger signal of the trigger member on earphone
On voltage, and the voltage on Mike's line 6 changes with the variation of trigger signal；Energy supply control module 1 is used for according to Mike's line 6
On voltage control power supply circuit switching selection the first powering mode or the second powering mode；Wherein, key circuit 2 receives touching
The trigger signal of outbox and when adjusting the voltage on Mike's line 6, energy supply control module 1 controls power supply circuit by the first powering mode
Switching is selected as the second powering mode.
In present embodiment, the first powering mode are as follows: the permission external power supply of energy supply control module 1 is at least the sensing of earphone
Device module 5 is powered；Second powering mode are as follows: energy supply control module 1 allows redundant electrical power 4 to be at least the power supply of sensor module 5.
In fact, in the present embodiment, one end of Mike's line 6 be connected to simultaneously energy supply control module 1, key circuit 2 and
Mike's module 3 (energy supply control module 1, key circuit 2 and Mike's module 3 are done on circuit boards in practice), Mike's line 6 it is another
One end is connected to the plug of earphone.Mike's line 6 is used for the external power supply connected in the first powering mode by headset plug end
At least the sensor module 5 of earphone is powered, and Mike's line 6 is also used to transmit the audio signal of the generation of Mike's module 3, Mike's line 6
Be also used to the data-signal (data-signal by energy supply control module 1 be modulated to Mike's line 6) of the generation of transmission sensor module 5 with
And the signal for being used to adjust the voltage on Mike's line that key circuit 2 generates.
In present embodiment, energy supply control module 1 can control the power supply circuit according to the voltage on Mike's line and switch
Powering mode can also detect whether to control the power supply circuit switching powering mode there are trigger signal from key circuit 2；
The present embodiment is not intended to be limited in any this.
In practice, one end of the sound channel line 7 of earphone is connected to sensor module 5, and the other end of sound channel line 7 is for being connected to
External power supply.Sound channel line 7 is used to the command signal of the generation of external power supply being transmitted to sensor module 5.
In the present embodiment, trigger signal is one of pulse signal, AC signal or direct current signal, right the present embodiment
The type of trigger signal is not intended to be limited in any.
In terms of existing technologies, the power supply circuit of earphone includes key circuit, power supply control to embodiments herein
Module and redundant electrical power.That is, energy supply control module is connected to key electricity simultaneously in power supply circuit provided by the embodiments of the present application
Road and redundant electrical power；Key circuit can adjust the voltage on Mike's line, power supply according to the trigger signal of the trigger member on earphone
Control module controls power supply circuit by the sensor module power switching that external power supply is earphone according to the voltage on Mike's line
Redundant electrical power is sensor module power supply.That is, when the present embodiment is pressed trigger member, earphone can normal power supply to being had
The sensor module of additional function, so that solving wired intellective earphone can not be supplied when using operation button for sensor module
The problem of electricity；And the present embodiment is easy to operate, without such as needing manual switching external mechanical switch to distinguish in the prior art
It realizes the basic function and additional function of earphone, is provided convenience for the use of user；Meanwhile the present embodiment makes sensor die
Block can coexist in wired intellective earphone with operation button (key circuit i.e. in the application), the key for the earphone that ensure that
The normal use of function and additional function, to improve user experience.
It is noted that each module involved in present embodiment is logic module, and in practical applications, one
A logic unit can be a physical unit, be also possible to a part of a physical unit, can also be with multiple physics lists
The combination of member is realized.In addition, in order to protrude the innovative part of the application, it will not be with solution the application institute in present embodiment
The technical issues of proposition, the less close unit of relationship introduced, but this does not indicate that there is no other single in present embodiment
Member.
The second embodiment of the application is related to a kind of power supply circuit of earphone.Second embodiment is in first embodiment
On the basis of refined, main refinement place is: in the application second embodiment, as shown in Fig. 2, providing power supply
The implementation of the physical circuit of modules in circuit.
In present embodiment, energy supply control module 1 includes first switch 11 and second switch 12；Wherein, first switch 11
It can be electronic switch with second switch 12, it is so without being limited thereto in practice.
Specifically, the first end D of first switch 111It is connected to Mike's line 6, the second end S of first switch 111It is connected to
Key circuit 2, redundant electrical power 4 and sensor module 5, the control terminal IN of first switch 111It is connected to Mike's line 6.Preferably,
The second end S of first switch 111Redundant electrical power 4 is connected to by first resistor 71.
Specifically, the first end D of second switch 122It is connected to the second end S of first switch 111, the of second switch 12
Two end S2It is connected to Mike's module 3, the control terminal IN of second switch 122It is connected to Mike's line 6.Preferably, second end S2Pass through
Two resistance 72 are connected to Mike's module 3.
Preferably, in the first powering mode, energy supply control module 1 also allows external power supply to be redundant electrical power 4 in this implementation
Charging.In fact, the feeder ear V of first switch 111, second switch 12 feeder ear V2It is connected to redundant electrical power 4；With
When energy supply control module 1 is in the second powering mode, sensor module 5 can be at least by redundant electrical power 4 and powered.
In the present embodiment, when the voltage on Mike's line 6 is high level, first switch 11 is in second switch 12 and leads
Logical state (i.e. the original state of first switch 11 and second switch 12), energy supply control module 1 control power supply circuit and are in first
Powering mode.When the voltage on Mike's line 6 is adjusted to low level by trigger signal, first switch 11 and second switch 12 into
Enter off-state, energy supply control module 1 controls power supply circuit and is in the second powering mode.
Wherein, the on state of first switch 11 refers to: the first end D of first switch 111With second end S1Conducting；Second
The on state of switch 12 refers to: the first end D of first switch 112With second end S2Conducting.The off-state of first switch 11 is
Refer to: the first end D of first switch 111With second end S1It disconnects；The off-state of second switch 12 refers to: the of first switch 11
One end D2With second end S2It disconnects.
In the present embodiment, first switch 11 and second switch 12 are integrated switch, such as first switch 11 and second switch
12 all can be analog switch, so without being limited thereto in practice, the present embodiment is not intended to be limited in any this.
In present embodiment, redundant electrical power 4 includes an at least storage capacitor 41.The anode of storage capacitor 41 is connected to simultaneously
Key circuit 2, first switch 11, second switch 12 and sensor module 5；Minus earth.When energy supply control module 1 is switched to
When the second powering mode, storage capacitor 41 is allowed to discharge to be at least sensor module power supply.It is so without being limited thereto in practice, deposit
Power supply 4 can also include other electric energy storage elements, such as electric energy storage element is lithium battery.
In present embodiment, key circuit 2 includes an at least key sub-circuit.In Fig. 2 by taking a key sub-circuit as an example
It is illustrated.Specifically, key sub-circuit includes the second key switch 21-1 and second voltage drop-down unit 22, the second key
The first end of switch 21-1 is connected to redundant electrical power 4, and it is single that the second end of the second key switch 21-1 is connected to second voltage drop-down
The control terminal of member 22；The lower pull end of second voltage drop-down unit 22 is connected to Mike's line 6.
In the present embodiment, when the second key switch receives trigger signal, second voltage drop-down unit 22 is connected, will
Voltage pull-down (that is, the voltage of Mike's line 6 is switched into low level by high level) on Mike's line 6.
In present embodiment, second voltage drop-down unit 22 includes the first pull down resistor 221-1 and the 5th switching tube 222.
The grid or base stage of 5th switching tube 222 form the control terminal of second voltage drop-down unit 22, and the drain electrode of the 5th switching tube 222 connects
It is connected to the first end of pull down resistor 221, the source electrode ground connection of the 5th switching tube 222.The second end of first pull down resistor 221-1 is formed
The lower pull end of second voltage drop-down unit 22 is connected to Mike's line 6.In the present embodiment, when the second key switch 21-1 receives touching
When signalling, the 5th switching tube 222 conducting, by the voltage pull-down on Mike's line 6.
In the present embodiment, the 5th switching tube 222 can be NMOS tube；So without being limited thereto, the present embodiment is to the 5th switching tube
222 can also be triode.
Preferably, in the present embodiment, key circuit 2 further include capacitor 232 for controlling the duration of trigger signal,
First divider resistance 231 and the second divider resistance 233.Specifically, the first end of capacitor 232 is connected to the second key switch
The second end of 21-1；The second end of capacitor 232 is grounded by the second divider resistance 233；First divider resistance 231 and capacitor 232
It is connected in parallel；The second end of capacitor 232 is also attached to the control terminal of second voltage drop-down unit 22.
In the present embodiment, due to the setting of capacitor 232, the first divider resistance 231 and the second divider resistance 233, when
When two key switch 21-1 receive trigger signal, key circuit can generate the negative pulse of certain time width, the negative pulse
Time width can be identified by external power supply, and can be according to different trigger member, the minimum voltage of the negative pulse of generation
Value is different.That is, key circuit can control drag down voltage on Mike's line 6 duration (can with predeterminated voltage pull down duration maximum
Value is drop-down limit duration), when the duration that the second key switch 21-1 receives trigger signal is greater than drop-down limit duration, then the
Two voltage drop-down units 22 are equal to drop-down limit duration to the voltage drop-down duration of Mike's line 6；When the second key switch 21-1 quilt
When the duration of pressing is less than drop-down limit duration, then second voltage drop-down unit 22 is equal to the voltage drop-down duration of Mike's line 6
The duration of second key switch 21-1 reception trigger signal；So that external power supply not only has sufficient duration identification Mike's line
Low level on 6, moreover it is possible to guarantee redundant electrical power 4 be at least sensor module 5 normal power supply (redundant electrical power 4 is smaller in practice,
The limited energy of storage).
The first drop-down in the present embodiment, when the number of key sub-circuit can be multiple, in different key sub-circuit
Resistance 221-1 can be set to different resistance values, so that different key sub-circuit realizes different functions.For example, key is sub
The number of circuit is three, can be respectively set volume add, the function of volume down and Answer Key；It is so here exemplary theory
It is bright, it is without being limited thereto in practice.
In present embodiment, sensor module 5 includes at least one biosensors 51.The power end of biosensors 51
It is connected to the anode of electric energy storage module 4, the output end of biosensors 51 is connected to the second end S of the 11 of first switch1.It is raw
For analyte detection device 51 such as can be heart rate detector, pedometer, blood oxygen detector, the present embodiment is not intended to be limited in any this.
In the present embodiment, when energy supply control module 1, which controls power supply circuit, selects the first powering mode, biosensors 51
Biological detection data can be transmitted to external power supply by MIC line 6.Wherein, biosensors 51 can for heart rate detector,
Pedometer and blood oxygen detector, the present embodiment are not intended to be limited in any the concrete type of biosensors 51.
In present embodiment, the power end of Mike's module 3 is connected to the second end S of second switch 122, Mike's module 3
Output end is connected to Mike's line 6.Preferably, the power end of Mike's module 3 is grounded by filter capacitor 73.Filter capacitor 73 is wheat
The power end of gram module 3 provides filtering, to guarantee that Mike's module 3 has stable power supply.It is actual, Mike's module 3 it is defeated
Outlet is connected to Mike's line 6 by coupled capacitor 74, and the electric signal converted by voice signal is coupled by coupled capacitor 74
Onto Mike's line 6.
In present embodiment, after power supply circuit is connect with external power supply, when the second key switch 21-1 does not receive triggering
When signal, Mike's line 6 exports high level, and the voltage of the control terminal of first switch 11 and second switch 12 is upgraded to high level, and first
Switch 11 and second switch 12 are on state, and energy supply control module 1 enters the first powering mode, i.e. external power supply passes through Mike
Line 6 is at least the sensor module power supply of earphone.In fact, being divided into two after the electric current that Mike's line 6 exports flows through first switch 11
Stock；First strand of electric current flows through first resistor 71 and charges for redundant electrical power 4, when the voltage in redundant electrical power 4 reaches preset threshold,
Sensor module 5 and energy supply control module 1 work normally.Second strand of electric current flows through second switch 12 and second resistance 72 is Mike
Module 3 is powered.The 5th switching tube 222 in key circuit is not turned on, on Mike's line 6 without influence.
In present embodiment, after power supply circuit is connect with external power supply, when the second key switch 21-1 receives triggering letter
Number when, redundant electrical power 4 exports control terminal of the high level to second voltage drop-down unit 22, the control of second voltage drop-down unit 22
It is high level that the voltage instantaneous at end, which increases, and (conducting of the 5th switching tube 222) is connected in second voltage drop-down unit 22, by Mike's line 6
On voltage pull-down, the control terminal of first switch 11 and second switch 12 is reduced to low level, first switch 11 and second switch 12
For off-state, energy supply control module 1 controls power supply circuit and is switched to the second powering mode, redundant electrical power by the first powering mode
4 are at least sensor module power supply to maintain to work normally.
In the present embodiment, when the second key switch 21-1 receives trigger signal, Mike's line 6 is used for transmission triggering letter
Number；Therefore, Mike's module 3 does not work temporarily, can cut off the power supply of Mike's module 3, by second switch 12 to reduce system
Power consumption.
In present embodiment, after power supply circuit is connect with external power supply, when the second key switch 21-1 persistently receives touching
When signalling；The electric current that redundant electrical power 4 exports flows into capacitor 232, and the voltage of the control terminal of second voltage drop-down unit 22 can be by
(i.e. the grid voltage of the 5th switching tube 222 reduces) is gradually reduced, until being lower than conducting voltage, second voltage drop-down unit 22 is disconnected
It opens；The voltage of Mike's line 6 gradually rises as high level, and the voltage of the control terminal of first switch 11 and second switch 12 is also upgraded to
High level, first switch 11 and second switch 12 are closed state, and energy supply control module 1 controls power supply circuit by the second power supply mould
Formula is switched to the first powering mode, and Mike's line 6 is at least sensor module 5 and powers.
In present embodiment, after power supply circuit is connect with external power supply, when the second key switch 21-1 is by receiving triggering letter
Number restore reset condition after, the charge discharging resisting stored on capacitor 232 can be fallen by the first divider resistance 231, so that next
When second key switch 21-1 is persistently pressed, there is enough capacity that can store charge.
Embodiments herein provides the electricity that modules in power supply circuit include for first embodiment
The specific implementation of subcomponent and each module ensure that the feasibility of the application.
The third embodiment of the application is related to a kind of power supply circuit of earphone.Third embodiment and second embodiment
Roughly the same, be in place of main difference: in the application second embodiment, energy supply control module 1 includes two switches (the
One switch 11 and second switch 12).And in the application third embodiment, as shown in figure 3, energy supply control module 1 includes one
A diode 13.
In present embodiment, in energy supply control module 1, the anode tap of diode 13 is connected to Mike's line 6, diode 13
Cathode terminal be at least connected with to key circuit 2, redundant electrical power 4, sensor module 5 and Mike's module 3.
In present embodiment, when the voltage on Mike's line 6 is high level, diode 13 is in the conductive state, power supply control
It is the first powering mode that molding block 1, which controls power supply circuit,.When the voltage on Mike's line is adjusted to low level by trigger signal, two
Pole pipe 13 is in off state, and energy supply control module 1 controls power supply circuit switching and is selected as the second powering mode.
In in fact, the present embodiment may be refinement on the basis of first embodiment to energy supply control module 1
Scheme.
For embodiments herein for first embodiment, the another kind for providing energy supply control module is specific
Circuit implementations.
The 4th embodiment of the application is related to a kind of power supply circuit of earphone.4th embodiment and third embodiment
Roughly the same, be in place of main difference: in the application third embodiment, second voltage drop-down unit 22 includes under first
Pull-up resistor 221-1 and the 5th switching tube 222.And in the 4th embodiment of the application, as shown in figure 4, second voltage drop-down is single
Member 22 includes the second pull down resistor 221-2, comparator 223, third divider resistance 234 and the 4th divider resistance 235.
In present embodiment, the first end of third divider resistance 234 is connected to redundant electrical power 4, third divider resistance 234
Second end is grounded by the 4th divider resistance 235.The non-inverting input terminal of comparator 223 is connected to the of third divider resistance 234
Two ends, the inverting input terminal of comparator 223 form the control terminal of second voltage drop-down unit 22, and the output end of comparator 223 connects
It is connected to the first end of the second pull down resistor 221-2；The second end of second pull down resistor 221-2 forms the lower pull end of comparator 223.
In the present embodiment, third divider resistance 234 and the 4th divider resistance 235 play the role of to the voltage on redundant electrical power 4.
Preferably, the inverting input terminal of comparator 223 passes through the first divider resistance 231 and electricity in parallel in the present embodiment
Hold 232 second ends for being connected to the second key switch 21-1, and the inverting input terminal of comparator 223 passes through the second divider resistance
233 ground connection.In the present embodiment, due to the setting of capacitor 232, the first divider resistance 231 and the second divider resistance 233, when
When two key switch 21-1 receive trigger signal, key circuit can generate the negative pulse of certain time width, the negative pulse
Time width can be identified by external power supply, and can according to different trigger member, generate different time width negative arteries and veins
Punching；That is, key circuit can control drag down voltage on Mike's line 6 duration (can with predeterminated voltage pull down duration maximum value be
Pull down limit duration), when the duration that the second key switch 21-1 is pressed is greater than drop-down limit duration, then second voltage pulls down
Unit 22 is equal to drop-down limit duration to the voltage drop-down duration of Mike's line 6, when the duration that the second key switch 21-1 is pressed
When less than drop-down limit duration, then second voltage drop-down unit 22 is equal to the second key to the voltage drop-down duration of Mike's line 6 and opens
The duration that 21-1 is pressed is closed, so that external power supply not only has the low level on sufficient time identification Mike's line 6, moreover it is possible to save
The charge of redundant electrical power 4, with guarantee redundant electrical power 4 be at least sensor module 5 normal power supply, (in practice redundant electrical power 4 compared with
It is small, the limited energy of storage).
In the present embodiment, when the second key switch 21-1 receives trigger signal, the inverting input terminal of comparator 223
Voltage is upgraded to high level, and the voltage of the non-inverting input terminal of comparator 223 is constant, keeps high level, and the output end of comparator 223 is defeated
Low level out, by the voltage pull-down on Mike's line 6.
In in fact, the present embodiment may be the scheme roughly the same with second embodiment.
Embodiments herein for third embodiment, comparator in second voltage drop-down unit instead of
The 5th switching tube in third embodiment, provides the implementation of another physical circuit of key circuit 2.
The 5th embodiment of the application is related to a kind of power supply circuit.5th embodiment and second embodiment substantially phase
Together, be in place of main difference: in the application second embodiment, energy supply control module 1 includes two integrated switch (first
Switch 11 and second switch 12).And in the application third embodiment, as shown in figure 5, energy supply control module 1 includes four
Discrete switching tube.
In present embodiment, energy supply control module 1 includes first switch tube 141, second switch 151, third switching tube
142 and the 4th switching tube 152.
Specifically, the grid or base stage of first switch tube 141 are connected to Mike's line 6, the source electrode of first switch tube 141 or
Emitter ground connection, the drain electrode of first switch tube 141 or collector are connected to Mike's line 6.The grid or base stage of second switch 151
It is connected to drain electrode or the collector of first switch tube 141, the source electrode or emitter of second switch 151 are connected to Mike's line 6, the
The drain electrode of two switching tubes 151 or collector are connected to key circuit 2, redundant electrical power 4 and sensor module 5.Preferably, this implementation
In example, the drain electrode of first switch tube 141 is connected to Mike's line 6 by 3rd resistor 75, and the grid of first switch tube 141 also passes through
The source level of 4th resistance 77 ground connection, second switch 151 is connected to Mike's line 6 by 3rd resistor 75.
Specifically, the grid or base stage of third switching tube 142 are connected to Mike's line 6, the source electrode of third switching tube 142 or
Emitter ground connection, the drain electrode of third switching tube 142 or collector are connected to the drain electrode of first switch tube.4th switching tube 152
Grid or base stage are connected to drain electrode or the collector of third switching tube 142, and the source electrode or emitter of the 4th switching tube 152 are connected to
The drain or collector of second switch 151, the drain electrode of the 4th switching tube 152 or collector are connected to Mike's module 3.Preferably
, in the present embodiment, the drain electrode of third switching tube 142 is connected to the drain electrode of second switch 151, third by the 5th resistance 76
The grid of switching tube 142 is grounded by the 6th resistance 78.
In present embodiment, when the voltage on Mike's line 6 is high level；First switch tube 141 and third switching tube 142
For grid voltage to be high, the grid voltage of second switch 151 and the 4th switching tube 152 is zero, is lower than source voltage, first switch
Pipe, first switch tube, second switch and second switch are on state, and energy supply control module controls at power supply circuit
In the first powering mode.
In present embodiment, when the voltage on Mike's line is adjusted to low level by trigger signal, the grid of second switch 151
Pole receives trigger signal by first switch tube 141, and the grid of the 4th switching tube 152 is received by third switching tube 142
Trigger signal；The grid voltage of first switch tube 141 and third switching tube 142 is low, the cut-off of first switch tube 141；Second opens
The source voltage for closing pipe 151 and the 4th switching tube 152 is identical as grid voltage, and second switch 151 is ended；That is, first switch
Pipe 141, second switch 151, third switching tube 142 and the 4th switching tube 152 enter off-state, energy supply control module control
Power supply circuit processed is in the second powering mode.
In the present embodiment, first switch tube to the 4th switching tube can be discrete component, such as first switch tube 141 and the
It is PMOS tube that three switching tubes 142, which are NMOS tube, second switch 151 and the 4th switching tube 152,；Right without being limited thereto in practice, example
If first switch tube 141 and third switching tube 142 be that PNP pipe, second switch 151 and the 4th switching tube 152 are managed for NPN.
In in fact, the present embodiment may be to refine on the basis of first embodiment to energy supply control module 1
Scheme, or the scheme roughly the same with third or the 4th embodiment.
Embodiments herein provides another specific electricity of energy supply control module for second embodiment
The implementation on road.
The sixth embodiment of the application is related to a kind of power supply circuit of earphone.Sixth embodiment and second embodiment
Roughly the same, be in place of main difference: in the application second embodiment, energy supply control module 1 includes two switches (the
One switch 11 and second switch 12)；In the application sixth embodiment, as shown in fig. 6, energy supply control module 1 includes third
Switch 161, the 4th switch 162, logic control circuit 17 and clock circuit 18.
In present embodiment, the first end of third switch 161 is connected to Mike's line 6, the second end connection of third switch 161
In logic control circuit 17, redundant electrical power 4 and sensor module 5, the control terminal of third switch 161 is connected to logic control electricity
Road 17.Preferably, in the present embodiment, the second end of third switch 161 by the 7th resistance 80 be connected to logic control circuit 17,
Redundant electrical power 4 and sensor module 5.
In present embodiment, the first end of the 4th switch 162 is connected to the second end of third switch 161, the 4th switch 162
Second end be connected to Mike's module 3 of earphone, the control terminal of the 4th switch 162 is connected to logic control circuit 17；Clock electricity
The both ends on road 18 are connected to redundant electrical power 4 and logic control circuit 17；Logic control circuit 17 is also attached to key circuit
2。
In present embodiment, constantly for high level, logic control circuit 17 controls third switch 161 to the voltage on Mike's line
In the conductive state with the 4th switch 162, energy supply control module 1 controls power supply circuit and is in the first powering mode；When triggering is believed
When number the voltage on Mike's line being adjusted to low level, logic control circuit 17 controls the first end and second of third switch 161
End is in an off state, and energy supply control module 1 controls power supply circuit and is in the second powering mode.
Wherein, the on state of third switch 161 are as follows: the first end of third switch 161 is connected with second end；4th switch
162 on state are as follows: the first end of the 4th switch 162 is connected with second end；The off-state of third switch 161 are as follows: third
The first end and second end of switch 161 disconnect；The off-state of 4th switch 162 are as follows: the first end and second of the 4th switch 162
End disconnects.
In fact, the feeder ear of third switch 161 and the 4th switch 162 is connected to redundant electrical power 4；In power supply control
When the control power supply circuit of molding block 1 is in the second powering mode, power supply is obtained from redundant electrical power 4.
In present embodiment, key circuit 2 includes several first key switches and several first voltage drop-down units.
Specifically, several first voltage drop-down units correspond respectively to several the first key switches in key circuit 2.It is several
One end of a first key switch is all connected to logic control circuit 17, and the other end of several the first key switches connects respectively
Ground；The control terminal of several first voltage drop-down units is all connected to logic control circuit 17, and the drop-down of several first voltages is single
The lower pull end of member is all connected to Mike's line 6.
As shown in fig. 6, key circuit 2 includes under three first key switches 21-2,21-3,21-4 and three first voltages
Draw unit 224,225,226.Wherein, first voltage drop-down unit 224 includes pull down resistor 2241 and switch 2242, first voltage
Drop-down unit 225 includes pull down resistor 2251 and switch 2252, and first voltage drop-down unit 226 includes and switch 2261；Wherein
The resistance value of each pull down resistor is different, can characterize the different function of each key switch.Preferably, the first key switch 21-2 passes through
8th resistance 261 is connected to logic control circuit 17, and the first key switch 21-3 is connected to logic control by the 9th resistance 262
Circuit 17, the first key switch 21-4 are connected to logic control circuit 17 by the tenth resistance 263；And the 8th resistance the 261, the 9th
Resistance 262 and the tenth resistance 263 pass through all-in resistance 79 and are connected to logic control circuit 17.
Wherein, when one of them first key switch receives trigger signal, the control of logic control circuit 17 first is pressed
The corresponding voltage drop-down unit conducting of key switch, by the voltage pull-down on Mike's line 6, clock circuit 18 is for controlling under voltage
Draw unit to the voltage fall times of Mike's line 6.
In present embodiment, multiple voltages in energy supply control module 1, sensor module 5 and key circuit 2 pull down single
Member can integrate in a chip；So without being limited thereto in practice, the present embodiment is not intended to be limited in any this, such as can also incite somebody to action
Independent element is respectively adopted in multiple voltage drop-down units in energy supply control module 1, sensor module 5 and key circuit 2
It applies in earphone.
In in fact, the present embodiment may be to energy supply control module 1 and to press on the basis of first embodiment
The scheme of the refinement of key circuit 2, or the scheme roughly the same with the embodiment of third, the 4th or the 5th.
Present embodiment provides another physical circuit of power control circuit for second embodiment
Implementation provides a kind of key circuit including multiple key switches Yu multiple voltage drop-down units.
The 7th embodiment of the application is related to a kind of earphone, including trigger member, sensor module, Mike's module, Mike
The power supply circuit of line and the earphone of first embodiment.
In present embodiment, Mike's line is connected to Mike's module, key circuit and energy supply control module in power supply circuit；
Trigger member is connected to the key circuit in power supply circuit, for providing trigger signal for key circuit；Sensor module and Mike
Module is connected to the energy supply control module in power supply circuit.
In the present embodiment, sensor module includes at least biological characteristic detection sub-module, biological characteristic detection sub-module example
For example biosensors, heart rate detector, pedometer, blood oxygen detector etc., right the present embodiment is not intended to be limited in any this.
In terms of existing technologies, earphone includes the power supply electricity of the earphone of the embodiment of the present application to embodiments herein
Road.That is, Mike's line is connected to Mike's module, the key circuit in power supply circuit and electricity in earphone provided by the embodiments of the present application
Source control module；Enable earphone normal power supply to the sensor module with additional function, to solve wired intellective
The problem of earphone can not be powered when using operation button for sensor module；And the earphone of the present embodiment is easy to operate, nothing
Need the basic function and the additional function that need manual switching external mechanical to switch to realize earphone respectively such as earphone in the prior art
Can, it is provided convenience for the use of user；Meanwhile the earphone in the present embodiment makes sensor module and key circuit wired
It can be coexisted in intelligent earphone, the keypress function for the earphone that ensure that and the normal use of additional function, to improve user
Experience.
It will be appreciated by those skilled in the art that implementing the method for the above embodiments is that can pass through
Program is completed to instruct relevant hardware, which is stored in a storage medium, including some instructions are used so that one
A equipment (can be single-chip microcontroller, chip etc.) or processor (processor) execute the whole of each embodiment method of the application
Or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific embodiment of the application,
And in practical applications, can to it, various changes can be made in the form and details, without departing from spirit and scope.
Claims (18)
1. a kind of power supply circuit of earphone characterized by comprising
The key circuit of the voltage on Mike's line in earphone, the Mike are adjusted according to the trigger signal of the trigger member on earphone
Voltage on line changes with the variation of the trigger signal；
Power supply circuit switching first powering mode of selection or the second powering mode are controlled according to the voltage on Mike's line
Energy supply control module；
And redundant electrical power, the energy supply control module are connected to the key circuit and the redundant electrical power simultaneously；
First powering mode is the sensor module that energy supply control module permission external power supply is at least the earphone
Power supply；Second powering mode is that the energy supply control module allows the redundant electrical power to be at least the sensor module confession
Electricity.
2. the power supply circuit of earphone according to claim 1, which is characterized in that the energy supply control module is opened including first
Pass and second switch；
The first end of the first switch is connected to Mike's line, and the second end of the first switch is connected to the key electricity
Road, the redundant electrical power and the sensor module, the control terminal of the first switch are connected to Mike's line；
The first end of the second switch is connected to the second end of the first switch, and the second end of the second switch is connected to
Mike's module in the earphone, the control terminal of the second switch are connected to Mike's line；
When the voltage on Mike's line is high level, the first switch and the second switch are on state,
The energy supply control module controls the power supply circuit and is in first powering mode；
When the voltage on Mike's line is adjusted to low level by the trigger signal, the first switch is opened with described second
Guan Jun enters off-state, and the energy supply control module controls the power supply circuit and enters second powering mode.
3. the power supply circuit of earphone according to claim 1, which is characterized in that the energy supply control module is diode；
The anode of the diode is connected to Mike's line, the cathode of the diode be at least connected with to the key circuit,
The redundant electrical power and the sensor module；
When the voltage on Mike's line is high level, the diode is in the conductive state, the energy supply control module control
It makes the power supply circuit and is in first powering mode；
When the voltage on Mike's line is adjusted to low level by the trigger signal, the diode enters off state,
The energy supply control module controls the power supply circuit and enters second powering mode.
4. the power supply circuit of earphone according to claim 1, which is characterized in that the energy supply control module is opened including first
Guan Guan, second switch, third switching tube and the 4th switching tube；
The grid or base stage of the first switch tube are connected to Mike's line, source electrode or emitter ground connection, drain electrode or collection
Electrode is connected to Mike's line；
The grid or base stage of the second switch are connected to drain electrode or the collector of the first switch tube, source electrode or transmitting
Pole is connected to Mike's line, and drain electrode or collector are connected to the key circuit, the redundant electrical power and the sensor
Module；
The grid or base stage of the third switching tube are connected to Mike's line, source electrode or emitter ground connection, drain electrode or collection
Electrode is connected to the drain electrode of first switch tube；
The grid or base stage of 4th switching tube are connected to drain electrode or the collector of the third switching tube, source electrode or transmitting
Pole is connected to drain electrode or the collector of the second switch, and drain electrode or collector are connected to Mike's module of the earphone.
5. the power supply circuit of earphone according to claim 4, which is characterized in that
When voltage on Mike's line is high level, the first switch tube, the second switch, the third switching tube
And the 4th switching tube is on state, the energy supply control module controls the power supply circuit and is in first confession
Power mode；
When voltage on Mike's line is adjusted to low level by the trigger signal, the first switch tube, described second are opened
Guan Guan, the third switching tube and the 4th switching tube enter off-state, and the energy supply control module controls the ear
The power supply circuit of machine enters second powering mode.
6. the power supply circuit of earphone according to claim 1, which is characterized in that the energy supply control module includes that third is opened
Pass, the 4th switch, logic control circuit and clock circuit；
The first end of the third switch is connected to Mike's line, and the second end of the third switch is connected to the logic control
The control terminal of circuit, the redundant electrical power and the sensor module processed, the third switch is connected to the logic control
Circuit；
The first end of 4th switch is connected to the second end of the third switch, and the second end of the 4th switch is connected to
The control terminal of Mike's module of the earphone, the 4th switch is connected to the logic control circuit；The clock circuit
Both ends are connected to the redundant electrical power and the logic control circuit；The logic control circuit is also attached to the key
Circuit.
7. the power supply circuit of earphone according to claim 6, which is characterized in that
When voltage on Mike's line is high level, the logic control circuit controls the third switch and opens with the described 4th
Pass is on state, and the energy supply control module controls the power supply circuit and is in first powering mode；
When voltage on Mike's line is adjusted to low level by the trigger signal, logic control circuit control described the
Three switches enter off-state, and the energy supply control module controls the power supply circuit and enters second powering mode.
8. the power supply circuit of earphone according to claim 6, which is characterized in that the key circuit include several first
Key switch and several first voltage drop-down units；Several described first voltage drop-down units correspond respectively to described several
A first key switch；
One end of several first key switches is all connected to the logic control circuit, several described first keys are opened
The other end of pass is grounded；
The control terminal of several first voltage drop-down units is all connected to the logic control circuit, it is described several first
The lower pull end of voltage drop-down unit is all connected to Mike's line；
When one of them first key switch receives the trigger signal, the logic control circuit controls the institute being pressed
The corresponding first voltage drop-down unit conducting of the first key switch is stated, by the voltage pull-down on Mike's line.
9. the power supply circuit of earphone according to claim 8, which is characterized in that the energy supply control module with it is described several
A first voltage drop-down unit is integrated in a chip.
10. the power supply circuit of earphone according to any one of claim 1 to 4, which is characterized in that the key circuit packet
Include an at least key sub-circuit；
The key sub-circuit includes the second key switch and second voltage drop-down unit, the first end of second key switch
It is connected to the redundant electrical power, the second end of second key switch is connected to the control of the second voltage drop-down unit
End, the lower pull end of the second voltage drop-down unit are connected to Mike's line；
When second key switch receives the trigger signal, the second voltage drop-down unit conducting will be described
Voltage pull-down on Mike's line.
11. the power supply circuit of earphone according to claim 10, which is characterized in that the key circuit further includes for controlling
Make the capacitor, the first divider resistance and the second divider resistance of the duration of the trigger signal；
The first end of the capacitor is connected to the second end of second key switch；The second end of the capacitor passes through described the
Two divider resistances ground connection；First divider resistance is connected in parallel with the capacitor；
The second end of the capacitor is also attached to the control terminal of the second voltage drop-down unit.
12. the power supply circuit of earphone according to claim 10, which is characterized in that the second voltage drop-down unit includes
First pull down resistor and the 5th switching tube；
The grid or base stage of 5th switching tube form the control terminal of the second voltage drop-down unit, the 5th switching tube
Drain electrode be connected to the first end of first pull down resistor, the source electrode ground connection of the 5th switching tube；
The second end of first pull down resistor forms the lower pull end of the second voltage drop-down unit.
13. the power supply circuit of earphone according to claim 10, which is characterized in that the second voltage drop-down unit includes
Second pull down resistor, comparator, third divider resistance and the 4th divider resistance；
The first end of the third divider resistance is connected to the redundant electrical power, and the second end of the third divider resistance passes through institute
State the 4th divider resistance ground connection；
The noninverting input of the comparator is connected to the second end of the third divider resistance；
The reverse input end of the comparator forms the control terminal of the second voltage drop-down unit, the output end of the comparator
It is connected to the first end of second pull down resistor；
The second end of second pull down resistor forms the lower pull end of the comparator.
14. the power supply circuit of earphone according to claim 1, which is characterized in that the redundant electrical power includes at least one storage
It can capacitor.
15. the power supply circuit of earphone according to claim 1, in first powering mode, the energy supply control module
Also allow the external power supply for redundant electrical power charging.
16. the power supply circuit of earphone according to claim 1, which is characterized in that the trigger signal is pulse signal, hands over
Flow one of signal or direct current signal.
17. a kind of earphone, which is characterized in that including trigger member, sensor module, Mike's module, Mike's line and claim 1
To the power supply circuit of earphone described in any one of 16；
Mike's line is connected to Mike's module, the key circuit in the power supply circuit and the power supply and controls mould
Block；
The trigger member is connected to the key circuit in the power supply circuit, for providing triggering letter for the key circuit
Number；
The sensor module and Mike's module are connected to the energy supply control module in the power supply circuit.
18. earphone according to claim 17, which is characterized in that the sensor module is detected including at least biological characteristic
Submodule.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/079780 WO2018184228A1 (en) | 2017-04-07 | 2017-04-07 | Earphone and power supply circuit for earphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107690813A CN107690813A (en) | 2018-02-13 |
| CN107690813B true CN107690813B (en) | 2019-08-23 |
Family
ID=61154876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780001471.6A Active CN107690813B (en) | 2017-04-07 | 2017-04-07 | The power supply circuit of earphone and earphone |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107690813B (en) |
| WO (1) | WO2018184228A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108737920A (en) * | 2018-03-30 | 2018-11-02 | 广东思派康电子科技有限公司 | Power supply circuit of earphone internal fitting based on 3.5mm interface |
| WO2019196054A1 (en) * | 2018-04-12 | 2019-10-17 | 深圳市汇顶科技股份有限公司 | Control device for earphones and wired earphones |
| WO2020034148A1 (en) * | 2018-08-16 | 2020-02-20 | 深圳市大疆创新科技有限公司 | Power supply method and device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006528B (en) * | 2009-08-31 | 2014-01-08 | 幻音科技(深圳)有限公司 | Earphone device |
| CN203761120U (en) * | 2013-12-20 | 2014-08-06 | 青岛歌尔声学科技有限公司 | Uninterrupted power supply circuit and electronic product |
| WO2015099795A1 (en) * | 2013-12-28 | 2015-07-02 | Intel Corporation | System and method for data transmission and power supply capability over an audio jack for mobile devices |
| CN103997552B (en) * | 2014-05-22 | 2017-04-19 | 广东欧珀移动通信有限公司 | Mobile phone mobile terminal and control method thereof |
| US20160150311A1 (en) * | 2014-11-21 | 2016-05-26 | Peak Audio Llc | Methods and systems for processing sound waves |
| US9966847B2 (en) * | 2015-07-17 | 2018-05-08 | Bose Corporation | Adaptive fail-save power-on control circuit |
| CN205160628U (en) * | 2015-07-31 | 2016-04-13 | 是联（北京）科技有限公司 | Intelligent terminal button equipment based on earphone interface |
| CN105187631A (en) * | 2015-07-31 | 2015-12-23 | 是联（北京）科技有限公司 | Intelligent terminal key device based on earphone interface and control method of intelligent terminal key device |
| CN105451115B (en) * | 2016-01-05 | 2019-04-30 | 深圳市汇顶科技股份有限公司 | A kind of earphone with biological characteristic detection function, interactive system and method |
| CN105491473A (en) * | 2016-02-02 | 2016-04-13 | 深圳威武智能科技有限公司 | Bluetooth earphone with continuous power supply |
| CN105554617A (en) * | 2016-03-01 | 2016-05-04 | 敲敲科技（北京）有限公司 | Earphone system |
-
2017
- 2017-04-07 CN CN201780001471.6A patent/CN107690813B/en active Active
- 2017-04-07 WO PCT/CN2017/079780 patent/WO2018184228A1/en active Application Filing
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| CN107690813A (en) | 2018-02-13 |
| WO2018184228A1 (en) | 2018-10-11 |
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