CN110322815A - A kind of explains device switching device - Google Patents
A kind of explains device switching device Download PDFInfo
- 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
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- CN
- China
- Prior art keywords
- earphone
- power supply
- supply unit
- explains
- pmos tube
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Links
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F25/00—Audible advertising
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic 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
- H03K17/687—Electronic 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
-
- 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
- H04R1/1041—Mechanical or electronic switches, or control elements
Landscapes
- 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
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.
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 |
Applications Claiming Priority (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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110322815A true CN110322815A (en) | 2019-10-11 |
Family
ID=68124587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910684746.1A Pending CN110322815A (en) | 2019-07-26 | 2019-07-26 | A kind of explains device switching device |
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| Country | Link |
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| CN (1) | CN110322815A (en) |
Citations (5)
| 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 |
-
2019
- 2019-07-26 CN CN201910684746.1A patent/CN110322815A/en active Pending
Patent Citations (5)
| 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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