CN110322815A - A kind of explains device switching device - Google Patents

A kind of explains device switching device Download PDF

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Publication number
CN110322815A
CN110322815A CN201910684746.1A CN201910684746A CN110322815A CN 110322815 A CN110322815 A CN 110322815A CN 201910684746 A CN201910684746 A CN 201910684746A CN 110322815 A CN110322815 A CN 110322815A
Authority
CN
China
Prior art keywords
earphone
power supply
supply unit
explains
pmos tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910684746.1A
Other languages
Chinese (zh)
Inventor
谢正华
王帅
张旭
沈金秋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUZHOU PORTABLE PLAY INFORMATION TECHNOLOGY Co Ltd
Original Assignee
SUZHOU PORTABLE PLAY INFORMATION TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SUZHOU PORTABLE PLAY INFORMATION TECHNOLOGY Co Ltd filed Critical SUZHOU PORTABLE PLAY INFORMATION TECHNOLOGY Co Ltd
Priority to CN201910684746.1A priority Critical patent/CN110322815A/en
Publication of CN110322815A publication Critical patent/CN110322815A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F25/00Audible advertising
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/687Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041Mechanical or electronic switches, or control elements

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Headphones And Earphones (AREA)

Abstract

The embodiment of the present invention provides a kind of explains device switching device, comprising: whether earphone inserted tester is inserted into the earphone jack of explains device for test earphone, and exports the detection signal whether expression earphone is inserted into earphone jack;Switching device can be switched in power supply unit, it is connected between power supply unit and explains device main circuit, for connecting the access between power supply unit and explains device main circuit when earphone inserted tester detects that earphone is already inserted into earphone jack, so that power supply unit is the power supply of explains device main circuit.The scheme of the embodiment of the present invention makes the booting of explains device more convenient.

Description

A kind of explains device switching device
Technical field
The present invention relates to a kind of explains device switching devices.
Background technique
With the continuous reinforcement of the electronic functionalities such as smart phone, power consumption is also gradually increased.One side electronic equipment Manufacturer be continuously increased electronic equipment assembly battery capacity, be on the other hand to be mentioned for the dissatisfactory equipment of cell phone battery capacity For mobile charging devices such as mobile power sources.With the prosperity of shared economy, and there is the products scheme of shared mobile power source.? In the scheme of shared mobile power source product, multiple mobile power sources, which are inserted into charging cabinet, to charge, when user is according to charging After prompt on cabinet carries out loan operation, user's acquisition takes out the permission an of mobile power source from charging cabinet or one is filled Power supply is popped up by mechanical structure, and user's mobile power source that can take away is carried out using can be by the movement after user's use Power supply is returned in charging cabinet.But current mobile power source function is also relatively simple.
It is a kind of extend mobile power source thinking be to be combined the guide interpreting device at mobile power source and scenic spot, guide interpreting From mobile power source, user only needs to hold an equipment and achieves that mobile power source and scenic spot guide interpreting two power supply of device Kind function.
The booting of usual explains device, which needs user to press special key, to be completed, only after the booting of completion explains device, The explanation content that explains device provides could be heard by earphone.Some inconvenience of this usage mode.
Summary of the invention
The purpose of the present invention is to provide a kind of explains device switching devices, can facilitate the power-on operation of explains device.
Purpose is described in detail to realize, the present invention provides a kind of explains device switching device, comprising:
Whether earphone inserted tester, the earphone jack of explains device is inserted into for test earphone, and exports expression earphone Whether the detection signal of earphone jack is inserted into;
Switching device can be switched in power supply unit, is connected between power supply unit and explains device main circuit, for inserting in earphone When entering detection device and detecting that earphone is already inserted into earphone jack, the access between power supply unit and explains device main circuit is connected, So that power supply unit is the power supply of explains device main circuit.
In a preferred embodiment, the detection signal output end of the earphone inserted tester and power supply unit can The control signal input of converting switch device connects;
When the detection signal output end output indicates the detection signal that earphone is already inserted into, control signal input is connect Receiving the detection signal and triggering power supply unit can be switched the access that switching device is connected between power supply unit and explains device main circuit.
It in a preferred embodiment, further include controller, for receiving the expression of earphone inserted tester output The detection signal whether earphone is inserted into, and judge whether earphone is inserted into earphone jack based on the detection signal, if earphone is It is inserted into earphone jack, then switching device can be switched to power supply unit and send control instruction, triggering said supply unit is changeable to be opened Close the access that device is connected between power supply unit and explains device main circuit.
In a preferred embodiment, the earphone inserted tester includes: the ground connection being set in earphone jack End and test side, when earphone is inserted into earphone jack, ground terminal and test side are connected the earphone, and the test side is for defeated The detection signal whether earphone is inserted into is indicated out.
In a preferred embodiment, it includes: changeable switching circuit, institute that switching device, which can be switched, in said supply unit The control signal input for stating changeable switching circuit is connected with the test side of the earphone jack.
In a preferred embodiment, the changeable switching circuit includes: PMOS tube component, the PMOS tube component Source electrode be connected with power supply unit, the grid of the PMOS tube component is connected with the test side of the earphone jack, the PMOS The drain of tube assembly is connected with explains device main circuit.
In a preferred embodiment, the grid of the PMOS tube component passes through first resistor and the PMOS component Source electrode is connected.
In a preferred embodiment, the grid of the PMOS tube component passes through the detection of second resistance and earphone jack End is connected.
In a preferred embodiment, the PMOS tube component includes multiple PMOS tube being connected in parallel, the multiple The source electrode for the PMOS tube being connected in parallel links together constitutes the source electrode of the PMOS tube component, the multiple to be connected in parallel The drain electrode of PMOS tube, which links together, constitutes the drain electrode of the PMOS tube component, the grid of the multiple PMOS tube being connected in parallel It links together and constitutes the grid of the PMOS tube component.
Through the embodiment of the present invention, when user inserts an earphone into earphone jack, triggering explains device is switched on, not only user side Just, and the opportunity of booting is more reasonable.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other Feature, objects and advantages will become more apparent upon:
Fig. 1 is the schematic diagram of the earphone inserted tester in explains device switching device provided in an embodiment of the present invention;
Fig. 2 is the signal of the changeable switching device of power supply unit in explains device switching device provided in an embodiment of the present invention Figure.
Specific embodiment
The present invention is described in further detail for set drawings and examples below.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.
Explains device switching device provided in an embodiment of the present invention may be implemented can be by explains device by user's insertion earphone It boots up, user is very easy to use.
As depicted in figs. 1 and 2, the explains device switching device in the embodiment of the present invention includes 10 He of earphone inserted tester Switching device 20 can be switched in power supply unit.Earphone of the earphone inserted tester 10 for whether test earphone to be inserted into explains device is inserted Kong Zhong, and export the detection signal for indicating whether earphone is inserted into.Power supply unit can be switched switching device 20 and be connected to power supply unit Between 30 and explains device main circuit 40, for when earphone inserted tester 10 detects that earphone is already inserted into earphone jack, The access between power supply unit 30 and explains device main circuit 40 is connected, so that power supply unit 30 is the power supply of explains device main circuit 40.
In practice, power supply unit 30 can be battery.
The detection signal output end of please referring also to Fig. 1 and Fig. 2, earphone inserted tester 10 can be single with power supply The control signal input connection of the changeable switching device 20 of member.If the end in Fig. 1 and Fig. 2 marked as EN_POWER is respectively ear The machine transplanting of rice enters the detection signal output end of detection device 10 and the control signal input of the changeable switching device 20 of power supply unit.? In Fig. 1 and Fig. 2, indicate that two ends are connected by identical label " EN_POWER ".When end " EN_POWER " in Fig. 1 (is examined Survey signal output end) output is when indicating the detection signal that earphone is already inserted into, the end " EN_POWER " (i.e. control signal in Fig. 2 Input terminal) the detection signal is then received, and trigger power supply unit switchable apparatus 20 and connect power supply unit 30 and explains device master Circuit 40.
One kind of earphone inserted tester 10 described further below realizes in detail, the earphone referring to Fig. 1, in the present embodiment Insertion detection device 10 is a kind of expansion to earphone jack interlock circuit.Earphone jack usually has two pins in left and right, figure It is middle to be denoted as J1 and J2 respectively.Furthermore earphone jack also has ground terminal J3.In general, after earphone insertion earphone jack, The different zones of mutually insulated on earphone are connected respectively at left pin J1, right pin J2 with ground terminal J3.Implement in the present invention Increase test side J4 in example, test side 4 is designed to after earphone insertion earphone jack, by earphone by ground terminal J3 and detection Hold J4 conducting;And earphone, when being not inserted into earphone jack, ground terminal J3 and test side J4 are not turned on.It can in combination with Fig. 1 and Fig. 2 To find out, when ground terminal J3 and test side J4 is not turned on, the voltage of test side J4 is in high voltage, when ground terminal J3 and inspection When surveying end J4 conducting, test side J4 voltage will be grounded end J3 and drag down, and then the voltage of test side J4 becomes low-voltage.Thus may be used See, whether earphone is inserted into earphone jack, and the voltage that will lead to test side J4 is different, in turn, passes through the electricity of test side J4 Bucklingization can determine whether earphone is inserted into earphone jack, therefore, the voltage signal of test side J4 may be considered a kind of expression ear Whether machine is inserted into the detection signal of earphone jack.
The specific implementation of switching device 20 can be switched in power supply unit described further below.Referring to fig. 2, this understands that dot element can be cut The main body for changing switching device 20 includes changeable switching circuit, and the control signal input of the changeable switching circuit is (i.e. in Fig. 2 The end EN_POWER) be connected with the test side (i.e. the end EN_POWER in Fig. 1) of earphone jack in Fig. 1.
The changeable switching circuit includes: PMOS component, and the source S 0 of PMOS tube component is connected with power supply unit 30, PMOS The grid G 0 of tube assembly is connected with the test side J4 of earphone jack, drain D0 and 40 phase of explains device main circuit of PMOS tube component Even.
The grid G 0 of specific address, PMOS tube component can pass through the test side J4 phase of second resistance R31 and earphone jack Even.PMOS tube component may include multiple PMOS tube being connected in parallel.The source electrode of multiple PMOS tube being connected in parallel is connected to one It rises, constitutes the source S 0 of PMOS tube component.The drain electrode of multiple PMOS tube being connected in parallel, which links together, constitutes PMOS tube component Drain D 0, the grid of multiple PMOS tube being connected in parallel, which links together, constitutes the grid G 0 of the PMOS tube component.In Fig. 2 In the specific example shown, PMOS tube component includes two PMOS tube being connected in parallel, and is denoted as Q1 and Q2 respectively.PMOS tube Q1's Source electrode, grid and drain are denoted as S1, G1 and D1 respectively.Source electrode, grid and the drain of PMOS tube Q2 is denoted as S2, G2 and D2 respectively. The grid G 0 of PMOS tube component can be connected by first resistor R30 with the source S 0 of PMOS tube component.
The advantages of constituting PMOS component is connected in parallel using multiple PMOS tube to be: PMOS component can be improved and bear big electricity The ability of stream.
The working principle of above-mentioned changeable switching circuit described further below.
When earphone jack is not inserted into earphone, the source voltage of PMOS tube Q1 and Q2 subtract grid voltage less than first threshold (such as 0.4V), so source electrode and drain cannot be connected, and then power supply unit 30 will not power to explains device main circuit 40, explains device In off-mode.
After earphone jack is inserted into earphone, ground terminal J3 is connected with test side J4, because ground terminal J3 is connected to the ground, The grid voltage of final PMOS tube Q1 and Q2 are pulled low, and source electrode and grid voltage difference is caused to be greater than first threshold (such as 0.4V), Source electrode and drain conducting, and then power supply unit 30 is powered to explains device main circuit 40, explains device is in open state.
The above process exactly meets the use habit of user, shows that user is real when user inserts an earphone into earphone jack Wish to begin to use explains device, can trigger explains device booting simultaneously at this time, not only user is convenient, but also the opportunity being switched on more closes Reason.
It should be noted that above-mentioned Fig. 1 and Fig. 2 shows embodiment in, the detection signal of earphone inserted tester 10 The control signal input that switching device 20 can be switched with power supply unit in output end is directly connected to, and is realized by the design of circuit : earpiece holes are inserted by earphone, triggering power supply unit can be switched switching device 20 and connect power supply unit 30 and the main electricity of explains device Access between road 40.
In practice can also by individual controller complete detection signal reading and judgement, and from controller to Power supply unit can be switched switching device 20 and send trigger signal.Specifically, controller is inserted for receiving earphone for receiving earphone Enter the detection signal whether the expression earphone of the output of detection device 10 is inserted into, and judges whether earphone is inserted into based on the detection signal Earphone jack can be switched switching device 20 to power supply unit and send control instruction, touching if earphone is already inserted into earphone jack Sending out power supply unit can be switched the access that switching device 20 is connected between power supply unit 30 and explains device main circuit 40.
It note that the above is only a better embodiment of the present invention and the applied technical principle.Those skilled in the art can manage Solution, the present invention is not limited to specific embodiments here, are able to carry out various apparent variations, again for a person skilled in the art New adjustment and substitution are 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, may be used also To include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.

Claims (9)

1. a kind of explains device switching device characterized by comprising
Whether earphone inserted tester, the earphone jack of explains device is inserted into for test earphone, and exports whether indicate earphone It is inserted into the detection signal of earphone jack;
Switching device can be switched in power supply unit, is connected between power supply unit and explains device main circuit, examines for being inserted into earphone When survey device detects that earphone is already inserted into earphone jack, the access between power supply unit and explains device main circuit is connected, so that Power supply unit is the power supply of explains device main circuit.
2. explains device switching device as described in claim 1, which is characterized in that the detection of the earphone inserted tester is believed Number output end is connect with the control signal input that switching device can be switched in power supply unit;
When the detection signal output end output indicates the detection signal that earphone is already inserted into, control signal input receives should Detection signal simultaneously triggers the access that the changeable switching device of power supply unit is connected between power supply unit and explains device main circuit.
3. explains device switching device as described in claim 1, which is characterized in that further include controller, inserted for receiving earphone Enter the detection signal whether the expression earphone of detection device output is inserted into, and judges whether earphone is inserted into ear based on the detection signal Machine transplanting of rice hole can be switched switching device to power supply unit and send control instruction, trigger institute if earphone is already inserted into earphone jack Stating power supply unit can be switched the access that switching device is connected between power supply unit and explains device main circuit.
4. explains device switching device as claimed in claim 2, which is characterized in that the earphone inserted tester includes: to set The ground terminal being placed in earphone jack and test side, when earphone is inserted into earphone jack, the earphone is by ground terminal and test side Conducting, the test side are used to export the detection signal for indicating whether earphone is inserted into.
5. explains device switching device as claimed in claim 4, which is characterized in that switching device packet can be switched in said supply unit It includes: changeable switching circuit, the test side phase of the control signal input and the earphone jack of the changeable switching circuit Even.
6. explains device switching device as claimed in claim 5, which is characterized in that the changeable switching circuit includes: PMOS The source electrode of tube assembly, the PMOS tube component is connected with power supply unit, the grid of the PMOS tube component and the earphone jack Test side be connected, the drain of the PMOS tube component is connected with explains device main circuit.
7. explains device switching device as claimed in claim 6, which is characterized in that the grid of the PMOS tube component passes through first Resistance is connected with the source electrode of the PMOS component.
8. explains device switching device as claimed in claim 7, which is characterized in that the grid of the PMOS tube component passes through second Resistance is connected with the test side of earphone jack.
9. explains device switching device as claimed in claim 6, which is characterized in that the PMOS tube component includes that multiple parallel connections connect The PMOS tube connect, the source electrode of the multiple PMOS tube being connected in parallel, which links together, constitutes the source electrode of the PMOS tube component, The drain electrode of the multiple PMOS tube being connected in parallel, which links together, constitutes the drain electrode of the PMOS tube component, the multiple parallel connection The grid of the PMOS tube of connection, which links together, constitutes the grid of the PMOS tube component.
CN201910684746.1A 2019-07-26 2019-07-26 A kind of explains device switching device Pending CN110322815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910684746.1A CN110322815A (en) 2019-07-26 2019-07-26 A kind of explains device switching device

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Application Number Priority Date Filing Date Title
CN201910684746.1A CN110322815A (en) 2019-07-26 2019-07-26 A kind of explains device switching device

Publications (1)

Publication Number Publication Date
CN110322815A true CN110322815A (en) 2019-10-11

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2621362Y (en) * 2003-05-27 2004-06-23 广西民族学院 Multi-frequency point information transmitting/receiving apparatus for group tour
CN201355561Y (en) * 2008-12-29 2009-12-02 深圳市恒嘉永盛电子有限公司 Automatic power-on MP3 player
CN208675514U (en) * 2018-10-30 2019-03-29 潍坊歌尔电子有限公司 A kind of frequency switch circuit and electronic equipment
CN109636519A (en) * 2018-12-05 2019-04-16 苏州随身玩信息技术有限公司 A kind of rental method of explains device
CN210223497U (en) * 2019-07-26 2020-03-31 苏州随身玩信息技术有限公司 Switch device of interpreter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2621362Y (en) * 2003-05-27 2004-06-23 广西民族学院 Multi-frequency point information transmitting/receiving apparatus for group tour
CN201355561Y (en) * 2008-12-29 2009-12-02 深圳市恒嘉永盛电子有限公司 Automatic power-on MP3 player
CN208675514U (en) * 2018-10-30 2019-03-29 潍坊歌尔电子有限公司 A kind of frequency switch circuit and electronic equipment
CN109636519A (en) * 2018-12-05 2019-04-16 苏州随身玩信息技术有限公司 A kind of rental method of explains device
CN210223497U (en) * 2019-07-26 2020-03-31 苏州随身玩信息技术有限公司 Switch device of interpreter

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