CN108924691A - A kind of bluetooth headset and its charge cabin, charging system - Google Patents
A kind of bluetooth headset and its charge cabin, charging system Download PDFInfo
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- CN108924691A CN108924691A CN201811025394.0A CN201811025394A CN108924691A CN 108924691 A CN108924691 A CN 108924691A CN 201811025394 A CN201811025394 A CN 201811025394A CN 108924691 A CN108924691 A CN 108924691A
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- 239000000523 sample Substances 0.000 claims abstract description 81
- 238000001514 detection method Methods 0.000 claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 claims description 32
- 230000000087 stabilizing effect Effects 0.000 claims description 17
- 239000003990 capacitor Substances 0.000 claims description 12
- 241001062009 Indigofera Species 0.000 claims description 5
- 230000001960 triggered effect Effects 0.000 claims description 3
- 230000007812 deficiency Effects 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- 230000000875 corresponding effect Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
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- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
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Classifications
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- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
- H04R2420/03—Connection circuits to selectively connect loudspeakers or headphones to amplifiers
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of bluetooth headset and its charging cabins, charging system, are related to technical field of integrated circuits.The bluetooth headset includes：Earphone charging inlet circuit, control circuit, level shifting circuit and chip module；Earphone charging inlet circuit includes end of probe, is connected by control circuit with the power voltage terminal of bluetooth headset；When end of probe is connected to the detection foot in charging cabin, the second voltage that the voltage of end of probe is provided by the detection foot that the first voltage that power voltage terminal provides is converted to charging cabin, trigger control circuit exports the first level signal to level shifting circuit, then the first level signal can be converted into off signal by level shifting circuit, bluetooth headset is closed with flip chip module.As it can be seen that the present invention realizes the automatic shutdown of bluetooth headset when the end of probe of earphone charging interface is connected to the detection foot in charging cabin, solve the problems, such as that bluetooth headset occurs opening by mistake machine in the charging voltage deficiency in cabin of charging.
Description
Technical field
The present embodiments relate to technical field of integrated circuits more particularly to a kind of bluetooth headset and its charging cabins, charging
System.
Background technique
With the fast development of the communication technology, bluetooth headset is more more and more universal, gives people's lives, work and learning tape
Great convenience is carried out.
Currently, most bluetooth headset usually uses built-in rechargeable battery as power supply.To guarantee bluetooth headset
Normal use, need to charge to the rechargeable battery in bluetooth headset, such as user do not use bluetooth headset when, by bluetooth
It charges in the charging cabin that earphone is put into the bluetooth headset.Specifically, after bluetooth headset is put into charging cabin, if charging cabin is to indigo plant
The voltage of tooth earphone charging reaches preset charging voltage, and such as 5 volts (Volt, V), then bluetooth headset can be provided based on charging cabin
Charging voltage automatic shutdown, and enter charged state；Bluetooth headset leave charging cabin when, such as bluetooth headset from charge cabin
After lifting, which can't detect the 5V charging voltage that charging cabin provides, and boots up, matches automatically, connect etc. and operates.
But when the charging voltage that cabin provides that charges is lower than preset charging voltage, such as in the dead battery in cabin of charging, bluetooth ear
Machine can not automatic shutdown after being put into charging cabin；Alternatively, the bluetooth headset being put into behind charging cabin has the feelings of electricity in its internal battery
The operation such as frequent progress shutdown, booting, pairing, connection under condition leads to such as mobile phone that can be connected with the bluetooth headset, flat
The intelligent terminals such as plate automatically by Audio conversion to the bluetooth headset, bring unnecessary trouble to user, such as when users use
User is needed to turn off the connection etc. between bluetooth headset, cutting intelligent terminal and bluetooth headset manually.
Summary of the invention
The present invention provides a kind of bluetooth headset and its charge cabin, charging system, is provided with solving bluetooth headset in charging cabin
Charging voltage deficiency when occur the problem of opening by mistake machine.
In a first aspect, the embodiment of the invention provides a kind of bluetooth headsets, including：Earphone charging inlet circuit, control electricity
Road, level shifting circuit and chip module；
Wherein, the earphone charging inlet circuit includes end of probe, the end of probe by the control circuit with it is described
The power voltage terminal of bluetooth headset is connected, and the end of probe is used to connect the detection foot in charging cabin；
When the end of probe is not attached to the detection foot in the charging cabin, the voltage of the end of probe is the supply voltage
The first voltage provided is provided；
When the end of probe is connected to the detection foot in the charging cabin, the voltage of the end of probe is converted to by first voltage
The second voltage that the detection foot provides, triggers the control circuit to the level shifting circuit and exports the first level signal；
The level shifting circuit is used to first level signal being converted to off signal, and the off signal is passed
It is defeated by chip module, the chip module is triggered according to the off signal and closes bluetooth headset.
Second aspect, the embodiment of the invention also provides the charging cabin of bluetooth headset, which includes：The charging of charging cabin
Interface, charge management circuit and battery；
Wherein, the charging cabin charging interface includes detection foot, power supply foot and grounding leg, and the detection foot is for connecting indigo plant
The end of probe of tooth earphone, the power supply foot are used to connect the first charging end of the bluetooth headset, and, the grounding leg is used for
Connect the second charging end of the bluetooth headset；
One end of the charge management module connects the anode of the battery, and the other end connects the power supply foot, is used for
When the detection foot is connected to the end of probe of bluetooth headset, charging voltage is exported to the power supply foot.
The third aspect, the embodiment of the invention also provides the charging systems of bluetooth headset, including：Bluetooth headset and charging
Cabin；Wherein, bluetooth headset includes bluetooth headset as described in relation to the first aspect；Charging cabin includes the charging as described in second aspect
Cabin；When the detection foot in the charging cabin is connected to the end of probe of the bluetooth headset, the charge management circuit in the cabin of charging to
The power supply foot in the charging cabin exports charging voltage.
The embodiment of the present invention is converted to charging cabin by first voltage in the voltage of the end of probe of earphone charging inlet circuit
After detecting the second voltage that foot provides, off signal can be exported to chip module, is made by control circuit and level shifting circuit
It obtains chip module and closes bluetooth headset, go out to solve bluetooth headset in the prior art in the charging voltage deficiency in cabin of charging
The problem of now opening by mistake machine.
Detailed description of the invention
Fig. 1 is a kind of structural block diagram of bluetooth headset of the embodiment of the present invention；
Fig. 2 is a kind of structural block diagram of bluetooth headset of an alternative embodiment of the invention；
Fig. 3 is a kind of structural block diagram of bluetooth headset of another alternative embodiment of the invention；
Fig. 4 is the structural schematic diagram of one of an example of the present invention bluetooth headset；
Fig. 5 is a kind of structural block diagram in the charging cabin of bluetooth headset of the embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram in the charging cabin of bluetooth headset of an alternative embodiment of the invention；
Fig. 7 is a kind of structural block diagram of the charging system of bluetooth headset of the embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Referring to Fig.1, a kind of structural block diagram of bluetooth headset of the embodiment of the present invention is shown.The bluetooth headset can wrap
It includes：Earphone charging inlet circuit 110, control circuit 120, level shifting circuit 130 and chip module 140.
Wherein, earphone charging inlet circuit 110 may include end of probe, the end of probe can by control circuit 120 with
The power voltage terminal VBAT of bluetooth headset is connected, and end of probe can be used for connecting the detection foot in charging cabin.Specifically, when visiting
The detection foot that end is not attached to charging cabin is surveyed, the voltage of the end of probe is the first voltage that power voltage terminal VBAT is provided；Work as spy
The detection foot that end is connected to charging cabin is surveyed, the voltage of the end of probe can be converted to the second electricity that detection foot provides by first voltage
Pressure, trigger control circuit 120 export the first level signal to level shifting circuit 130.Level shifting circuit 130 can be used for by
The first level signal that control circuit 120 exports is converted to off signal, which is transferred to chip module 140, from
And bluetooth headset can be closed according to the off signal with flip chip module 140.
To sum up, the embodiment of the present invention is connected to the detection foot in charging cabin in the end of probe of earphone charging inlet circuit 110, such as
After bluetooth headset is put into charging cabin, the end of probe of the earphone charging inlet circuit 110 of the bluetooth headset can pass through connection
Device is connected with the detection foot in charging cabin, and the voltage of end of probe is converted to by the first voltage that power voltage terminal VBAT is provided to be filled
The second voltage that the detection foot in electric cabin provides, so that the control circuit 120 triggered in bluetooth headset is defeated to level shifting circuit 130
First level signal then can be converted to off signal by level shifting circuit 130, and transmitted by the first level signal out
To the chip module 140 of bluetooth headset, bluetooth headset is closed to trigger the chip module 140 according to the off signal, is such as executed
Shutdown movement, realizes the automatic shutdown of bluetooth headset.
As it can be seen that the embodiment of the present invention is converted in the voltage of the end of probe of earphone charging inlet circuit 110 by first voltage
It, can be by control circuit 120 and level shifting circuit 130, to chip dies after the second voltage that foot offer is provided in cabin that charges
Block 140 exports off signal, so that chip module 140 closes bluetooth headset, mentions in the prior art in charging cabin to solve
The charging voltage of confession is lower than preset charging voltage, bluetooth headset be put into behind the charging cabin can not automatic shutdown the problem of, that is, solve
Certainly there is the problem of opening by mistake machine in the charging voltage deficiency in cabin of charging in bluetooth headset in the prior art.
In the concrete realization, optionally, the first voltage that power voltage terminal VBAT is provided can be higher than the detection in charging cabin
The second voltage that foot provides.For example, the first voltage that power voltage terminal VBAT is provided can be high level voltage, it such as can be 5
The high level voltage of volt；The second voltage that the detection foot in charging cabin provides can be low level voltage, such as inspection in charging cabin
In the case where foot connection is surveyed with reference to ground, second voltage can be 0 volt of low level voltage etc..
It is high level voltage, charging in the first voltage that power voltage terminal VBAT is provided as an example of the invention
In the case that the second voltage that the detection foot in cabin provides is low level voltage, when the end of probe of earphone charging inlet circuit 110 does not have
There is the detection foot for being connected to charging cabin, such as after bluetooth headset leaves charging cabin, the end of probe of the earphone charging inlet circuit 110
Voltage be high level voltage；When the end of probe of earphone charging inlet circuit 110 is connected to the detection foot in charging cabin, which fills
The voltage of the end of probe of electrical interface circuit 110 can be electrically charged the voltage pull-down of the detection foot in cabin, i.e. earphone charging inlet circuit 110
The voltage of end of probe low level voltage is converted to by high level voltage, such as after bluetooth headset is put into charging cabin, cabin of charging
Detection foot can be connected to the end of probe of earphone charging inlet circuit 110 by connector, so that the voltage of end of probe is electric from height
Ordinary telegram pressure is converted to low level voltage, exports the first level letter to level shifting circuit 130 so as to trigger control circuit 120
Number.Specifically, control circuit 120 detect the voltage of end of probe be converted to low level voltage from high level voltage when, can
To export a high level signal, and level shifting circuit can be transferred to using the high level signal as the first level signal
130, an off signal is exported to chip module 140, so that chip module 140 exists so as to trigger flat conversion circuit 130
Detect that the off signal realizes shutdown movement, i.e. closing bluetooth headset.
As it can be seen that this example is pulled low as the test side in cabin of charging in the voltage of the end of probe of earphone charging inlet circuit 110
After the low level voltage of offer, it can export and shut down to chip module 140 by control circuit 120 and level shifting circuit 130
Signal allows chip module 140 to close bluetooth headset according to the off signal, so that the bluetooth headset for being put into charging cabin exists
Can also be with automatic shutdown when the not enough power supply in charging cabin, that is, solving charging voltage of the existing bluetooth headset in charging cabin can not be certainly
The problem of dynamic shutdown, so can be avoided the bluetooth headset after putting charging cabin into be connected with intelligent terminal caused by problem,
Stability of warranty family during using bluetooth headset, improves user experience.
Certainly, the booting of bluetooth headset also can be realized automatically when bluetooth headset leaves charging cabin in the embodiment of the present invention,
So as to the trouble for avoiding user from being switched on manually, simplify user's operation.Optionally, control circuit 120 can be used for detecting spy
The voltage at end is surveyed, and when the voltage for detecting end of probe is first voltage, exports second electrical level letter to level shifting circuit 130
Number.Specifically, such as leaving charging cabin in bluetooth headset in the first voltage that the voltage source voltage end VBAT of end of probe is provided
Afterwards, the connection between the end of probe of earphone charging inlet circuit and the detection foot in charging cabin disconnects, and the voltage of end of probe can be from
The second voltage that the detection foot in charging cabin provides switchs to the first voltage of power voltage terminal VBAT offer, so as to trigger control
Circuit 120 exports second electrical level signal to level shifting circuit 130, defeated to chip module 140 with triggering level conversion circuit 130
A starting-up signal out.Wherein, level shifting circuit 130 can be used for second electrical level signal being converted to starting-up signal, will be switched on
Signal is transferred to chip module 140, opens bluetooth headset according to starting-up signal so as to flip chip module 140, realizes bluetooth
The Auto Power On of earphone.
Wherein, chip module 140 can be used for opening the indigo plant according to the starting-up signal when the bluetooth headset is closed
Tooth earphone.For example, whether chip module 140 after receiving starting-up signal, can detecte bluetooth headset currently in shutdown shape
State, to determine whether to execute boot action based on the starting-up signal.If detecting, bluetooth headset is currently at off-mode, that is, exists
When bluetooth headset shuts down, then bluetooth headset is opened according to starting-up signal, i.e. opening automatically for bluetooth headset is realized in execution boot action
Machine.Optionally, when detecting that bluetooth headset is currently at non-off-mode, it is such as in open state, shutdown letter can be ignored
Number, alternatively, can also execute other movements etc. based on the starting-up signal, the embodiment of the present invention is not specifically limited this.
In an alternate embodiment of the present invention where, above-mentioned control circuit 120 can be a single chip machine controlling circuit, tool
Body may include one-chip computer module 121.Level shifting circuit 130 can specifically include the first conversion module 131 and the second conversion
Module 132.As shown in Fig. 2, one end of the first conversion module 131 is connected with the first output end of one-chip computer module 121, it is another
It holds and is connected with the first reception pin of chip module 140, first for exporting the first output end of one-chip computer module 121
Level signal is converted to off signal, and the off signal is transferred to the first of chip module 140 and receives pin.Second conversion
One end of module 132 is connected with the second output terminal of one-chip computer module 121, the second reception of the other end and chip module 140
Pin is connected, for the second electrical level signal of the second output terminal output of one-chip computer module 121 to be converted to starting-up signal, and
Second that the starting-up signal is transferred to chip module 140 receives pin.
Specifically, the detection foot in cabin of charging may be connected to bluetooth ear when bluetooth headset puts charging cabin into and charged
The end of probe of the earphone charging inlet circuit 110 of machine, so that the voltage of the end of probe of earphone charging inlet circuit 110 is electric from first
Pressure is converted to second voltage, and the end of probe of the earphone charging inlet circuit 110 may be coupled to the monolithic in control circuit 120
Machine module 121.One-chip computer module 121 is when the voltage for detecting end of probe is converted to second voltage from first voltage, Ke Yitong
The first outlet is crossed, the first conversion module 131 into level shifting circuit 130 exports the first level signal, with first turn of triggering
It changes the mold block 131 and exports off signal to chip module 140, chip module 140 is allowed to close bluetooth ear according to off signal
Machine, into charged state.When bluetooth headset is proposed from charging cabin, the end of probe of earphone charging inlet circuit 110 can pass through
Resistance, conducting wire in control circuit 120, such as control circuit 120, are connected to power voltage terminal VBAT, so that the electricity of end of probe
Pressure can be by the voltage high of power voltage terminal VBAT, i.e. the voltage of the end of probe of earphone charging inlet circuit 110 can be by second
Voltage is converted to first voltage, to trigger the starting-up signal that one-chip computer module 121 generates a bluetooth headset.One-chip computer module
121 can be by second output terminal, and the second conversion module 132 into flat conversion circuit 130 exports second electrical level signal, with triggering
Second conversion module 132 exports starting-up signal to chip module 140, and chip module is allowed to open bluetooth according to starting-up signal
Earphone realizes the Auto Power On of bluetooth headset, the movement such as can be matched, be connected, automatically then to establish bluetooth headset and its
The communication connection relationship of his equipment, communicates bluetooth headset with other equipment, such as receives and/or send audio number
According to etc..
In the embodiment of the present invention, optionally, control circuit 120 can also include capacitance voltage stabilizing module 122 and antistatic two
Pole pipe module 123.As shown in figure 3, the end of probe of one end connection earphone charging inlet circuit 110 of electrostatic earphone module 123
DETECTOR PORT, the other end connect the reference ground of bluetooth headset.The electrostatic earphone module 123 may include one or more
A antistatic diode can be effectively prevent such as Electro-static Driven Comb (Electro-Static Discharge, ESD) diode etc.
Damage of the exterior static to bluetooth headset.Capacitance voltage stabilizing module 122 may include first capacitor pressure stabilizing submodule 1221 and second
Capacitance voltage stabilizing submodule 1222.Wherein, the spy of one end connection earphone charging inlet circuit of first capacitor pressure stabilizing submodule 1221
End DETECTOR PORT is surveyed, the other end connects the reference ground of bluetooth headset, for stablizing the electricity of end of probe DETECTOR PORT
Pressure.The reference ground of one end connection bluetooth headset of second capacitance voltage stabilizing submodule 1222, the other end connect the power supply of bluetooth headset
The power input VDD of voltage end VBAT and one-chip computer module 121, for stablizing the power input of the one-chip computer module
The voltage of VDD.
For example, first capacitor pressure stabilizing submodule 1221 may include one or more capacitors, specifically can be used for preventing ear
Machine connector circuit 110 with charge cabin charging interface instant jitter, so as to prevent the instant jitter to end of probe
The influence of DETECTOR PORT voltage achievees the purpose that the end of probe voltage of stable earphone charging inlet circuit 110.
Certainly, the second capacitance voltage stabilizing submodule 1222 also may include one or more capacitors, and the embodiment of the present invention is to this
It is not specifically limited.Capacitor in capacitance voltage stabilizing submodule 1222 may be coupled to 121 power input VDD of one-chip computer module,
And can be used as the decoupling capacitance of 121 power input VDD of one-chip computer module, enhance the stability of one-chip computer module 121.Its
In, 121 power input VDD of one-chip computer module can be directly connected to the power voltage terminal VBAT of bluetooth headset.
In an alternate embodiment of the present invention where, bluetooth headset can also include：Key circuit 150 and diode-isolated
Circuit 160.As shown in figure 3, one end of the diode-isolated circuit 160 connects second conversion module 132, the other end connects
The third for connecing the key circuit 150 and the chip module receives pin, so as to prevent key circuit from receiving user
It causes to execute the second conversion module 132 level conversion movement and lead to the mistake to chip module 140 when the actuation of keys of input
Movement guarantees that chip module 140 is capable of the actuation of keys of normal response user input, meets the operational requirements of user.Key electricity
150 one end of road connects the power voltage terminal VBAT of bluetooth headset, and the third of other end chip module connection 140 receives pin, from
And chip module is made to can detecte the button operation that the used key circuit 150 of user inputs, and then can be according to detecting
Button operation execute corresponding actions, meet user's operation demand, improve user experience.
In the concrete realization, optionally, the first conversion module 131 in the embodiment of the present invention includes the first transistor Q1,
And the first end of the first transistor Q1 can connect the first output end of one-chip computer module 121, the second of the first transistor Q1
End can connect the first reception pin of chip module 140, and, the ginseng of the third end connection bluetooth headset of the first transistor Q1
Examine ground.After the first level signal of the first output end output of one-chip computer module 121 is transferred to the first end of the first transistor Q1,
The first transistor Q1 conducting, so that the third end of the first transistor Q1 generates an off signal, and the off signal can pass
Defeated first to chip module 140 receives pin.Chip module 140 can detect that the shutdown is believed by the first reception pin
Number, shutdown movement can be then executed based on the off signal, realized the automatic shutdown of bluetooth headset, simplified operation.Wherein,
One transistor Q1 can be N-type Metal-oxide-semicondutor (N-Metal-Oxide-Semiconductor, NMOS) crystal
Pipe, be also possible to other types transistor, such as can be triode, the embodiment of the present invention to this with no restriction.
In addition, the second conversion module 132 in the embodiment of the present invention may include second transistor Q2 and current-limiting resistance R1.
Wherein, one end of current-limiting resistance R1 can connect the first output end of one-chip computer module 121, and the other end can connect the second crystal
The first end of pipe Q2；The second end of second transistor Q2 can connect the second reception pin of chip module 140, and, second
The third end of transistor Q2 can connect the reference ground of bluetooth headset.Specifically, the second output terminal of one-chip computer module 121 exports
Second electrical level signal can be transferred to the first end of second transistor Q2 by current-limiting resistance R1, so that second transistor Q2 is led
It is logical.After second transistor Q2 conducting, the second end of second transistor Q2 generates a starting-up signal, so that chip module 140
Second reception pin can detecte starting-up signal, execute booting according to the starting-up signal so as to flip chip module 140
The Auto Power On of bluetooth headset is realized in movement, simplifies operation.It should be noted that second transistor Q2 can be NMOS crystal
Pipe, be also possible to other types transistor, such as can be triode, the embodiment of the present invention to this with no restriction.
By taking true wireless stereo (True Wireless Stereo, TWS) bluetooth headset as an example, as shown in figure 4, working as
When TWS bluetooth headset charges in cabin of charging, the detection foot DETECTER PIN in cabin of charging can be connected by connector POGO PIN
It is connected to the end of probe DETECTOR PORT of the earphone charging inlet circuit 110 of bluetooth headset, so that end of probe DETECTOR
The voltage of PORT is converted to low level voltage from high level voltage.Wherein, the high level voltage of end of probe DETECTOR PORT can
To be connected to resistance R2 generation by power voltage terminal VBAT, and end of probe DETECTOR PORT can pass through one or more
Resistance R3 is connected to the one-chip computer module 121 in control circuit 120, is such as connected to the first foot VPP of one-chip computer module 121, from
And one-chip computer module 121 is allowed to detect a turn from high level voltage to low level voltage by first foot VPP
It changes.When detecting a conversion from high level voltage to low level voltage, the first output end of one-chip computer module 121 can be defeated
First level signal out such as exports 5 seconds high level signal, and can be transferred to level shifting circuit by resistance R4
The first conversion module 131 in 130 is transferred to the grid (i.e. the second end of the first transistor Q1) of the first transistor Q1, makes
The drain D (i.e. the first end of the first transistor Q1) for obtaining the first transistor Q1 in the first conversion module 131 is conducting to bluetooth ear
The reference ground GND of machine such as generates 5 seconds low level signal, so that chip module to generate an off signal
140 the first reception pin PIO17 can detecte to 5 seconds low level signal and can realize that the shutdown of bluetooth headset is dynamic
Make.Optionally, the grid of the first transistor Q1 can be connected to the reference ground of bluetooth headset by one or more resistance R5
GND, this example to this with no restriction.
End of probe DETECTOR when TWS bluetooth headset is proposed from charging cabin, in earphone charging inlet circuit 110
PORT can be connected to the power voltage terminal VBAT of bluetooth headset, so that end of probe by the resistance R2 in control circuit 120
The voltage of DETECTOR PORT can be drawn high by power voltage terminal VBAT, i.e. the voltage of end of probe DETECTOR PORT can be from
Low level voltage is converted to high level voltage.One-chip computer module 121 detects end of probe DETECTOR by the first foot VPP
After conversion of the voltage of PORT from low level voltage to high level voltage, a second electrical level letter can be exported by second output terminal
Number, 3 seconds high level signal, and the second conversion module 132 that can be transferred in level shifting circuit 130 are such as exported, such as
By the current-limiting resistance R1 in the second conversion module 132, second electrical level signal is transferred to second in the second conversion module 132
Transistor Q2 is transferred to the grid (i.e. the first end of the first transistor Q2) of second transistor Q2, so that second transistor Q2
Conducting, to generate a starting-up signal.Specifically, in drain D (i.e. the second of second transistor Q2 of second transistor Q2
End) be conducting to bluetooth headset reference ground GND after, chip module 140 second receive pin PIO2 can detecte to one 3 seconds
Low level signal, and this 3 seconds low level signals that can be will test are as starting-up signal, to hold according to the starting-up signal
The automatic turn-on function of bluetooth headset is realized in row boot action.Optionally, the grid of second transistor Q2 can by one or
Multiple resistance R6 be connected to bluetooth headset reference ground GND, this example to this with no restriction.
Further, the first capacitor pressure stabilizing submodule 1221 in the embodiment of the present invention may include one or more electricity
Holding, if may include capacitor C1 shown in Fig. 4, specifically can be used for preventing earphone connector from trembling with charging cabin interface moment
It is dynamic, stablize the end of probe DETECTORPORT voltage of the earphone charging inlet circuit of bluetooth headset.Optionally, the second capacitance voltage stabilizing
Submodule 1222 also may include that one or more capacitors as may include capacitor C2 shown in Fig. 4 can be used as single-chip microcontroller
The decoupling capacitance of module, to enhance the stability of one-chip computer module.
In addition, antistatic diode (led) module 123 may include one or more ESD diodes, as may include institute in Fig. 4
The ESD diode D1 shown.As shown in figure 4, one end of ESD diode D1 can connect the reference ground of bluetooth headset, the other end can
To connect the end of probe DETECTORPORT of earphone charging inlet circuit, exterior static can be effectively prevented to the damage of bluetooth headset
It is bad.
In the embodiment of the present invention, optionally, the earphone charging inlet circuit 110 can also include the first charging end 111
With the second charging end 112.Wherein, the first charging end 111 can be connected with the charging voltage pin VCHG of chip module 140,
And the power supply foot for connecting the charging cabin；Second charging end 112 can be connected with the grounding pin of chip module 140,
And the grounding leg for connecting the charging cabin.As shown in figure 4, the first charging end 111 can be connected to by connecting interface VCH
The charging voltage pin VCHG of chip module 140 specifically can be used for receiving the charging voltage that the power supply foot in charging cabin is exported
Deng；Second charging end 112 can be directly connected to the reference ground GDN of bluetooth headset, be particularly used in the grounding lead for receiving charging cabin
The ground voltage etc. that foot is exported.
Further, the key circuit 150 in the embodiment of the present invention may include key S1 and resistance R7.As shown in figure 4,
Key circuit 150 can be connected to power voltage terminal VBAT by resistance R7, and can be connected to chip module by key S1
140 third receives pin REGEN, so as in user's operation key S1, provided based on power voltage terminal VBAT first
Voltage generate corresponding operation signal, be transferred to chip module 140 third receive pin REGEN so that chip module 140 according to
Corresponding operation movement is executed according to the operation signal, meets the operational requirements of user.
Diode-isolated circuit in the embodiment of the present invention may include one or more diodes, such as may include Fig. 4
Shown in diode D2.One end of diode D2 is connected to the grid of the second transistor Q2 in the second conversion module, another
End connection key circuit key S1, be particularly used in when preventing actuation of keys cause to level shifting circuit 130 act and
Lead to the malfunction to chip module 140.Specifically, chip module 140 can such as be answered based on the feature operation of software set,
It hangs up the telephone, suspend, play music etc., user can pass through operation button S1, so that it may so that the third of chip module 140 receives
Pin REGEN receives corresponding operation signal, so that the operation signal of chip module 140 realizes corresponding operation movement.Two
Pole pipe D2 has one-way conduction effect.As user's operation key S1, a high level signal of VBAT is connected to by R7, no
The first transistor Q1, second transistor Q2 can be made to be connected by D5, i.e. the first reception pin PIO17 of chip module 140, the
Two reception pin PIO2 do not detect a level conversion from high to low, thereby may be ensured that chip module 140 may be implemented
Answering, hanging up the telephone in the feature list of bluetooth headset such as suspends, plays music at the movement.
To sum up, the embodiment of the present invention can pass through after the detection foot that the end of probe of earphone charging interface is connected to charging cabin
Chip module in bluetooth headset realizes the automatic shutdown of bluetooth headset, solves bluetooth headset in the charging voltage in charging cabin
Occurs the problem of opening by mistake machine when insufficient.
It should be noted that the charging cabin in the embodiment of the present invention can be not only charging bluetooth earphone, can also place
Bluetooth headset, to facilitate user to store bluetooth headset.
Referring to Fig. 5, a kind of structural block diagram in the charging cabin of bluetooth headset of the embodiment of the present invention is shown.The bluetooth headset
Charging cabin may include：Charge cabin charging interface 510, charge management circuit 520 and battery 530.Wherein, the charging cabin is filled
Electrical interface 510 includes detection foot 511, power supply foot 512 and grounding leg 513, which is used to connect the detection of bluetooth headset
End, power supply foot 512 are used to connect the first charging end of the bluetooth headset, and, grounding leg 513 is for connecting the bluetooth ear
Second charging end of machine.The anode of one end connection battery 530 of charge management module 520, other end connection power supply foot 513, is used
In when detection foot 511 is connected to the end of probe of bluetooth headset, charging voltage is exported to power supply foot 511.
For example, after bluetooth headset is put into charging cabin, the end of probe of the earphone charging inlet circuit of the bluetooth headset can be with
Be connected to the detection foot 511 in charging cabin so that charge management circuit 520 can based on the electricity of battery current residual, to
The power supply foot of charging cabin charging interface 510 exports charging voltage, and the voltage of such as control power supply foot 512 remains 5V charging voltage,
To be based on the charging voltage as charging bluetooth earphone.Certainly, do not have in the end of probe of the earphone charging inlet circuit of bluetooth headset
Be connected to charging cabin detection foot 511 when, such as bluetooth headset leave charge cabin after, charge management circuit 520 can stop to
Foot 513 of powering exports charging voltage, that is, does not need to keep the voltage of power supply foot 513 to be 5V charging voltage, so as to not consume
The electricity of battery in charging cabin.
As it can be seen that charging cabin in the embodiment of the present invention is when detecting foot 511 and being connected to the end of probe of bluetooth headset, to power supply
Foot 512 exports charging voltage, and when detection foot 511 is not attached to the end of probe of bluetooth headset, it can close to power supply foot 512
Output, so as to greatly reduce charging cabin from power consumption.
In an alternate embodiment of the present invention where, which further includes：Universal Serial Bus Interface (Universal
Serial Bus, USB) 540.As shown in fig. 6, the voltage end VBUS connection charge management circuit of Universal Serial Bus Interface 540
520, the reference ground GND in the ground terminal connection charging cabin of Universal Serial Bus Interface 540；The detection of charging cabin charging interface 510
The cathode of foot 511, the grounding leg 513 of charging cabin charging interface 510 and battery 530 can connect the reference in the charging cabin
Ground GND.The anode of battery 530 may be coupled to charge management circuit 520.Furthermore, Universal Serial Bus Interface 540
Voltage end VBUS can connect charging cabin power end VCC, the embodiment of the present invention to this with no restriction.
In the concrete realization, when the end of probe of the earphone charging inlet circuit of bluetooth headset is connected to the detection foot in charging cabin
511, whether charge management circuit 520 can detecte bluetooth headset fully charged.If detecting, bluetooth headset has been filled with electricity, can be with
Based on preset boost charge mode in the charge management circuit 520, stop the power supply foot to charging cabin charging interface 510
512 output charging voltages, that is, be automatically closed charging, thus reduce cabin of charging from power consumption.If detecting bluetooth headset underfill
Electricity can then determine that needs charge to the bluetooth headset, then based on preset liter in the charge management circuit 520
Charging modes are pressed, export charging voltage to the power supply foot 512 of charging cabin charging interface 510, so that the voltage of power supply foot 512 reaches
Charging voltage, to realize the charging to bluetooth headset based on charging voltage, until bluetooth headset is fully charged.
It should be noted that charge management circuit 520 can use one or more boost charge modes, charge to being put into
The bluetooth headset in cabin charges, and the embodiment of the present invention is not specifically limited the boost charge mode in fulgurite reason circuit 520.
For example, charge management circuit 520 can be provided based on power-supply device after charging cabin is connected to power-supply device by USB interface
Electric energy, charge for the battery 530 in the bluetooth headset being put into the charging cabin and/or the charging cabin etc..
On the basis of the above embodiments, the embodiment of the present invention also provides a kind of charging system of bluetooth headset.Such as Fig. 7 institute
Show, the charging system of bluetooth headset may include：Bluetooth headset 710 and charging cabin 720.Wherein, bluetooth headset 710 may include
Any one bluetooth headset in above-described embodiment；Charging cabin 720 may include the charging cabin of any one in above-described embodiment.When
The detection foot in charging cabin 720 is connected to the end of probe of bluetooth headset 710, and the charge management circuit in charging cabin 720 can be to charging
The power supply foot in cabin exports charging voltage.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For example, for system embodiments, being described relatively simple, related place is referring to bluetooth headset and/or charging cabin embodiment
Part explanation.
By the description above with respect to embodiment, it is apparent to those skilled in the art that, the present invention
It can be realized by software and required common hardware, naturally it is also possible to which by hardware realization, but in many cases, the former is more
Good embodiment.Based on this understanding, technical solution of the present invention substantially in other words contributes to the prior art
Part can be embodied in the form of software products, which can store in computer readable storage medium
In, floppy disk, read-only memory (Read-Only Memory, ROM), random access memory (Random such as computer
Access Memory, RAM), flash memory (FLASH), hard disk or CD etc., including some instructions are with so that a computer is set
Standby (can be robot, personal computer, server or the network equipment etc.) executes indigo plant described in any embodiment of that present invention
The charging method of tooth earphone.
It is worth noting that, in above-mentioned bluetooth headset and its charging cabin, included each unit and module only according to
What function logic was divided, but be not limited to the above division, as long as corresponding functions can be realized；In addition, each
The specific name of functional unit is also only for convenience of distinguishing each other, the protection scope being not intended to restrict the invention.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized：With for realizing the logic gates of logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (11)
1. a kind of bluetooth headset, which is characterized in that including：Earphone charging inlet circuit, control circuit, level shifting circuit and core
Piece module；
Wherein, the earphone charging inlet circuit includes end of probe, and the end of probe passes through the control circuit and the bluetooth
The power voltage terminal of earphone is connected, and the end of probe is used to connect the detection foot in charging cabin；
When the end of probe is not attached to the detection foot in the charging cabin, the voltage of the end of probe is that the power voltage terminal mentions
The first voltage of confession；
When the end of probe is connected to the detection foot in the charging cabin, the voltage of the end of probe is converted to described by first voltage
The second voltage that foot provides is detected, the control circuit is triggered to the level shifting circuit and exports the first level signal；
The level shifting circuit is used to first level signal being converted to off signal, and the off signal is transferred to
Chip module triggers the chip module according to the off signal and closes bluetooth headset.
2. bluetooth headset according to claim 1, which is characterized in that
The control circuit is used to detect the voltage of the end of probe, and is first voltage in the voltage for detecting the end of probe
When, second electrical level signal is exported to the level shifting circuit；
The level shifting circuit is used to the second electrical level signal being converted to starting-up signal, and the starting-up signal is transferred to
The chip module；
The chip module is used to open the bluetooth headset according to the starting-up signal when the bluetooth headset is closed.
3. bluetooth headset according to claim 2, which is characterized in that the control circuit includes one-chip computer module, described
Level shifting circuit includes the first conversion module and the second conversion module；
One end of first conversion module is connected with the first output end of the one-chip computer module, the other end and the chip
First reception pin of module is connected, and the first level signal for exporting first output end is converted to shutdown letter
Number, and the off signal is transferred to the first of the chip module and receives pin；
One end of second conversion module is connected with the second output terminal of the one-chip computer module, the other end and the chip
Second reception pin of module is connected, and the second electrical level signal for exporting the second output terminal is converted to booting letter
Number, and the starting-up signal is transferred to the second of the chip module and receives pin.
4. bluetooth headset according to claim 3, which is characterized in that the control circuit further include capacitance voltage stabilizing module and
Antistatic diode (led) module；
One end of the electrostatic earphone module connects the end of probe of the earphone charging inlet circuit, and the other end connects the indigo plant
The reference ground of tooth earphone；
The capacitance voltage stabilizing module includes first capacitor pressure stabilizing submodule and the second capacitance voltage stabilizing submodule；
One end of the first capacitor pressure stabilizing submodule connects the end of probe of the earphone charging inlet circuit, and the other end connects institute
The reference ground for stating bluetooth headset, for stablizing the voltage of the end of probe；
One end of the second capacitance voltage stabilizing submodule connects the reference ground of the bluetooth headset, and the other end connects the bluetooth ear
The power input of the power voltage terminal of machine and the one-chip computer module, for stablizing the power input of the one-chip computer module
Voltage.
5. the bluetooth headset according to claim 4 or 3, which is characterized in that the bluetooth headset further include key circuit and
Diode-isolated circuit；
One end of the diode-isolated circuit connects second conversion module, and the other end connects the key circuit and described
The third of chip module receives pin；
Described key circuit one end connects the power voltage terminal of the bluetooth headset, and the other end connects the third of the chip module
Receive pin.
6. according to any bluetooth headset of claim 2 to 4, which is characterized in that
First conversion module includes the first transistor, and the first end of the first transistor connects the one-chip computer module
The first output end, what the second end of the first transistor connected the chip module first receives pin, and, described the
The third end of one transistor connects the reference ground of the bluetooth headset；
Second conversion module includes second transistor and current-limiting resistance；
One end of the current-limiting resistance connects the first output end of the one-chip computer module, and the other end connects the second transistor
First end；
The second end of the second transistor connects the second reception pin of the chip module, the third of the second transistor
End connects the reference ground of the bluetooth headset.
7. bluetooth headset according to any one of claims 1 to 4, which is characterized in that the earphone charging inlet circuit is also wrapped
Include the first charging end and the second charging end；
First charging end is connected with the charging voltage pin of the chip module, and the confession for connecting the charging cabin
Electric foot；
Second charging end is connected with the grounding pin of the chip module, and the ground connection for connecting the charging cabin
Foot.
8. bluetooth headset according to any one of claims 1 to 4, which is characterized in that the first voltage is higher than described second
Voltage.
9. a kind of charging cabin of bluetooth headset, which is characterized in that including：Charge cabin charging interface, charge management circuit and battery；
Wherein, the charging cabin charging interface includes detection foot, power supply foot and grounding leg, and the detection foot is for connecting bluetooth ear
The end of probe of machine, the power supply foot are used to connect the first charging end of the bluetooth headset, and, the grounding leg is for connecting
Second charging end of the bluetooth headset；
One end of the charge management module connects the anode of the battery, and the other end connects the power supply foot, for described
When detection foot is connected to the end of probe of bluetooth headset, charging voltage is exported to the power supply foot.
10. charging cabin according to claim 9, which is characterized in that further include：Universal Serial Bus Interface；
The voltage end of the Universal Serial Bus Interface connects the charge management circuit, and the Universal Serial Bus Interface connects
Ground terminal connects the reference ground in the charging cabin；
The cathode of the detection foot, the grounding leg and the battery is all connected with the reference ground in the charging cabin.
11. a kind of charging system of bluetooth headset, which is characterized in that including：Bluetooth headset and charging cabin；
Wherein, the bluetooth headset includes bluetooth headset as described in any of the claims 1 to 8；
The charging cabin includes the charging cabin as described in claim 9 or 10；
When the detection foot in the charging cabin is connected to the end of probe of the bluetooth headset, the charge management circuit in the cabin of charging to
The power supply foot in the charging cabin exports charging voltage.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811025394.0A CN108924691A (en) | 2018-09-04 | 2018-09-04 | A kind of bluetooth headset and its charge cabin, charging system |
| US16/178,887 US10784722B2 (en) | 2018-09-04 | 2018-11-02 | BLUETOOTH headset, charging cabin and charging system thereof |
| JP2018214790A JP6869937B2 (en) | 2018-09-04 | 2018-11-15 | Bluetooth® earphones and charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811025394.0A CN108924691A (en) | 2018-09-04 | 2018-09-04 | A kind of bluetooth headset and its charge cabin, charging system |
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| Publication Number | Publication Date |
|---|---|
| CN108924691A true CN108924691A (en) | 2018-11-30 |
Family
ID=64406825
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811025394.0A Pending CN108924691A (en) | 2018-09-04 | 2018-09-04 | A kind of bluetooth headset and its charge cabin, charging system |
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| CN (1) | CN108924691A (en) |
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| CN112399321A (en) * | 2020-10-09 | 2021-02-23 | 深圳市思远半导体有限公司 | Bluetooth headset, Bluetooth headset state monitoring method and readable storage medium |
| CN112491100A (en) * | 2019-09-11 | 2021-03-12 | 广东思派康电子科技有限公司 | Charging system of TWS earphone |
| WO2021068245A1 (en) * | 2019-10-12 | 2021-04-15 | 万魔声学科技有限公司 | Charging box, earphone, audio device and earphone charging control method |
| WO2021243509A1 (en) * | 2020-06-01 | 2021-12-09 | Harman International Industries, Incorporated | 2 pogo pin design for tws headphone |
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Application publication date: 20181130 |