CN104882926B - A kind of charging indication and mobile terminal - Google Patents
A kind of charging indication and mobile terminal Download PDFInfo
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- CN104882926B CN104882926B CN201510236725.5A CN201510236725A CN104882926B CN 104882926 B CN104882926 B CN 104882926B CN 201510236725 A CN201510236725 A CN 201510236725A CN 104882926 B CN104882926 B CN 104882926B
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- processor
- light emitting
- emitting diode
- switch element
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- 230000005669 field effect Effects 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 2
- 208000032953 Device battery issue Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention discloses a kind of charging indication and mobile terminal, which includes battery, at least a light emitting diode, processor and control circuit, wherein, processor and battery are connect with an at least light emitting diode；Control circuit includes first switching element and second switch element, the first end of institute's first switching element is connect with an at least light emitting diode, the tie point of the control terminal of first switching element and the first end of second switch element is connect with a power input port, the control terminal of second switch element is connect with processor, the second end ground connection of first switching element and second switch element.By the above-mentioned means, the present invention can control light emitting diode to indicate charged state when cell voltage is too low by the voltage of power input port.
Description
Technical field
The present invention relates to field of mobile terminals, more particularly to a kind of charging indication and mobile terminal.
Background technology
Present mobile terminal is in out of power typically by the way of flinging, such as mobile phone, tablet or other wearings are set
Standby, these mobile terminals have LED light, are generally displayed in red in charging, and green is shown after charging complete.
These LED lights are controlled by baseband processor, but baseband processor due to cell voltage it is too low general
Do not work, for example, user do not have to cell voltage is caused to discharge into less than 3.3V or even cell voltage for a long time it is lower, as battery is put
Electric protection 2.3V charges at this time to the battery of low pressure, and since processor cannot work (less than 3.3V), LED light will
It cannot normally show.It has to, until cell voltage reaches 3.3V processor operating voltages, could normally open charging instruction
Lamp.This stand-by period depending on the capacity of battery and charging current, generally requires a few minutes to more than ten minutes, charges when being inserted into
Mobile phone LED light and LCD do not show that this brings illusion to user after device, take for battery failures or other reasons, bring very poor
User experience.
Middle and high end mobile phone uses switched charge chip in the market, due to the self-powered path management of chip, can solve this
Class problem, but such chip price is expensive, increases cost.
Invention content
The invention mainly solves the technical problem of providing a kind of charging indication and mobile terminals, can be in battery electricity
When pressing through low, light emitting diode is controlled to indicate charged state by the voltage of power input port.
In order to solve the above technical problems, one aspect of the present invention is：A kind of charging indication is provided, is filled
Electric indicating circuit includes battery, at least a light emitting diode, processor and control circuit, wherein, processor and battery with extremely
Few light emitting diode connection；Control circuit include first switching element and second switch element, the first of first switching element
End connect with an at least light emitting diode, the tie point of the control terminal of first switching element and the first end of second switch element and
One power input port connects, and the control terminal of second switch element is connect with processor, first switching element and second switch member
The second end ground connection of part；First control signal is exported when processor works to second switch element, controls second switch element
Conducting is tie point to be grounded, so as to which first switching element be disconnected；Export second control signal extremely when the disposer is not in operation
Second switch element, control second switch element are closed, and tie point receives the voltage of input by power input port, thus will
First switching element is connected, and lights an at least light emitting diode.
Wherein, when battery is charged by power input port and when increasing voltage, processor is worked normally with defeated
Enter first control signal to second switch element, control second switch element conductive is tie point to be grounded, so as to which first be opened
It closes element to disconnect, the work of an at least light emitting diode is controlled by processor.
Wherein, first switching element and second switch element are field-effect tube, first switching element and second switch element
First end, second end and control terminal correspond to drain electrode, source electrode and the grid of field-effect tube respectively.
Wherein, the control terminal of second switch element is connect by input/output port GPIO with processor.
Wherein, first control signal is high level signal, and second control signal is low level signal.
Wherein, control circuit includes first resistor, second resistance, 3rd resistor and the 4th resistance；First switching element
Control terminal is grounded by first resistor, and the control terminal of second switch element is grounded by second resistance, and 3rd resistor is connected to electricity
Between source input port and the control terminal of first switching element, the 4th resistance is connected to control terminal and the processing of second switch element
Between device.
Wherein, the 4th resistance is connected between control terminal and the motherboard power supply of second switch element.
Wherein, charging indication includes the first light emitting diode and the second light emitting diode；First light emitting diode
First end connects battery, the first end and processor of the second end connection first switching element of the first light emitting diode, the second hair
Optical diode is connected between battery and processor.
Wherein, the 5th resistance is also connected between battery and the first light emitting diode, between battery and the second light emitting diode
It is also connected with the 6th resistance.
In order to solve the above technical problems, another technical solution used in the present invention is：A kind of mobile terminal is provided, it is mobile
Terminal includes charging indication, wherein, which is charging indication as described above.
The beneficial effects of the invention are as follows：The situation of the prior art is different from, the present invention.
Description of the drawings
Fig. 1 is the circuit diagram of charging indication first embodiment of the present invention；
Fig. 2 is the circuit diagram of charging indication second embodiment of the present invention；
Fig. 3 is the circuit diagram of charging indication third embodiment of the present invention；
Fig. 4 is the structure diagram of mobile terminal first embodiment of the present invention.
Specific embodiment
Refering to Fig. 1, the circuit diagram of charging indication first embodiment of the present invention, the charging indication includes battery
110th, at least a light emitting diode 120, processor 130 and control circuit 140.
Wherein, processor 130 and battery 110 are connect with an at least light emitting diode 120；Control circuit 140 includes the
One switch element 141 and second switch element 142,141 first ends of first switching element connect with an at least light emitting diode 120
It connects, the tie point and a power input port of the control terminal of first switching element 141 and the first end of second switch element 142
150 connections, the control terminal of second switch element 142 are connect with processor 130, first switching element 141 and second switch element
142 second end ground connection；First control signal is exported when processor 130 works to second switch element 142, control second is opened
It closes element 142 to be connected so that tie point to be grounded, so as to which first switching element 141 be disconnected；It is exported when processor 130 does not work
Second control signal to second switch element 142, control second switch element 142 is closed, and tie point passes through power input port
150 receive the voltage of input, so as to which first switching element 141 be connected, light an at least light emitting diode 120.
Wherein, processor 130 can be the baseband processing chip of terminal or other chips or central processing unit, power input
The USB interface of charging connection wire is inserted into when port 150 is usually terminal charge.
Specifically, when the voltage of battery 110 maintains 3.3V, processor 130 can work normally, at this time processor
130 output first control signals cause the control terminal 141 of first switching element to be grounded so that second switch element 142 is opened, from
And first switching element 141 is closed, at this time since processor 130 can work normally, battery can be passed through
110th, the circuit that light emitting diode 120 and processor 130 are formed indicates charging shape to control the work of light emitting diode 120
State.
It is to be appreciated that the processor 130 of the processor 130 of connecting luminous diode and connection second switch element can be with
It is two different signal output ports of same processor.
When the voltage of battery 110 is less than 3.3V, such as the discharge prevention voltage 2.3V of battery, processor 130 can not at this time
Work exports second control signal to second switch element 142, because processor 130 is stopped, the second control letter here
Number no signal is can be understood as, i.e. second switch element 142 is closed, and since terminal is charging, power input port 150 connects
External 5V input terminals, at this time first switching element 141 open, battery 110, light emitting diode 120 and ground wire are formed into a loop, hair
Optical diode 120 is lit.
It is different from the prior art, present embodiment is by when cell voltage is normal and brownout two states, passing through
Two circuits control the work of light emitting diode with processor and power input port respectively.Can it is too low in cell voltage or
Charged state is indicated in the case of person's overdischarge, and charging initial stage is avoided not show that charged state causes the vacation of equipment fault to user
As to improve the experience of user.
Referring to Fig.2, the circuit diagram of charging indication second embodiment of the present invention, which includes battery
210th, at least a light emitting diode 220, processor 230 and control circuit 240；
Wherein, processor 230 and battery 210 are connect with an at least light emitting diode 220；Control circuit 240 includes the
One switch element 241 and second switch element 242, the first end of institute's first switching element 241 and an at least light emitting diode 220
The tie point and a power input port of connection, the control terminal of first switching element 241 and the first end of second switch element 242
250 connections, the control terminal of second switch element 242 are connect with processor 230, first switching element 241 and second switch element
242 second end ground connection；First control signal is exported when processor 230 works to second switch element 242, control second is opened
It closes element 242 to be connected so that tie point to be grounded, so as to which first switching element 241 be disconnected；It is exported when processor 230 does not work
Second control signal to second switch element 242, control second switch element 242 is closed, and tie point passes through power input port
250 receive the voltage of input, so as to which first switching element 241 be connected, light an at least light emitting diode 220.
Wherein, when 210 voltage of battery increases, and processor 230 works normally, control second switch element 242 be connected with
Tie point is grounded, so as to which first switching element 241 be disconnected, the work of an at least light emitting diode 220 is controlled by processor 230
Make.
Wherein, charging indication includes the first light emitting diode 221 and the second light emitting diode 222；First luminous two
The first end connection battery of pole pipe 221, the first end of the second end connection first switching element 241 of the first light emitting diode 221
And processor 230, the second light emitting diode 222 are connected between battery 210 and processor 230.
It is to be appreciated that the first light emitting diode 221 and the second light emitting diode 222 are connected to processor 230 respectively
Two different signal output ports.
Wherein, first switching element 241 and second switch element 242 are field-effect tube, first switching element 241 and second
First end, second end and the control terminal of switch element 242 correspond to drain electrode, source electrode and the grid of field-effect tube respectively.
Wherein, the control terminal of second switch element 242 is connect by input/output port GPIO with processor 230.
Wherein, first control signal is high level signal, and second control signal is low level signal.
Wherein, control circuit includes first resistor 261, second resistance 262,263 and the 4th resistance 264 of 3rd resistor；The
The control terminal of one switch element 241 is grounded by first resistor 261, and the control terminal of second switch element 242 passes through second resistance
262 ground connection, 3rd resistor 263 are connected between the control terminal of power input port 250 and first switching element 241, the 4th electricity
Resistance 264 is connected between the control terminal of second switch element 242 and processor 230.
In addition, being also connected with the 5th resistance 265 between 210 and first light emitting diode 221 of battery, battery 210 and second is sent out
The 6th resistance 266 is also connected between optical diode 222.
Specifically, when the voltage of battery 210 maintains 3.3V, processor 230 can work normally, at this time processor
230 output high level lead to the grounded-grid of the first field-effect tube 241, so as to make first so that the second field-effect tube 242 is opened
Field-effect tube 241 is closed, and at this time since processor 230 can work normally, can pass through battery 210, luminous two
Circuit that pole pipe 220 and processor 230 are formed indicates charged state to control the work of light emitting diode 220.
Wherein, the first light emitting diode 221 and the second light emitting diode 222 can be different color, to indicate respectively
Charging neutralizes charging complete two states.
When the voltage of battery 210 is less than 3.3V, such as the discharge prevention voltage 2.3V of battery, processor 230 can not at this time
Work exports low level to the grid of the second field-effect tube 242, and the second field-effect tube 242 is closed, since terminal is charging,
Power input port 250 connects external 5V input terminals, and the first field-effect tube 241 is opened at this time, battery 210, first luminous two
Pole pipe 221 is formed into a loop with ground wire, and the first light emitting diode 221 is lit.
The prior art is different from, present embodiment is used as switch unit by field-effect tube, and passes through processor and send out height
Low level with control the conducting of field-effect tube and cut-off realize terminal in cell voltage filling normally and under the low two states of voltage
Electricity instruction, avoids charging initial stage from not showing that charged state causes the illusion of equipment fault to user, to improve the experience of user, drop
Low cost.
Refering to Fig. 3, the circuit diagram of the third embodiment of charging indication of the present invention.
Present embodiment is similar with the second embodiment of charging indication of the present invention, and the difference lies in by second
The processor 230 connected on 242 grid of effect pipe by the 4th resistance 264 has changed the motherboard power supply 270 of terminal into.
Since mainboard is similar with processor 230, it is required for work normally when the voltage of battery 210 reaches 3.3V,
Therefore the principle of two embodiments is identical, and which is not described herein again.
Refering to Fig. 4, the structure diagram of mobile terminal of the present invention, the mobile terminal 400 includes charging indication, this is filled
Electric indicating circuit includes battery 401, at least a light emitting diode 402, processor 403 and control circuit 404.
The charging instruction electricity that the battery 401, at least a light emitting diode 402, processor 403 and control circuit 404 form
Road is such as the circuit in the above embodiment 1-3, and principle is similar, and which is not described herein again.
The foregoing is merely embodiments of the present invention, are not intended to limit the scope of the invention, every to utilize this
It is relevant to be directly or indirectly used in other for the equivalent structure or equivalent flow shift that description of the invention and accompanying drawing content are made
Technical field is included within the scope of the present invention.
Claims (6)
1. a kind of charging indication, which is characterized in that the charging indication includes battery, the first light emitting diode, the
Two light emitting diodes, processor and control circuit；
Wherein, the control circuit include first switching element and second switch element, the first of first light emitting diode
End connects the battery, and the second end of first light emitting diode connects the first end of the first switching element and the place
Device is managed, second light emitting diode is connected between the battery and the processor, the control of the first switching element
The tie point of the first end of end and the second switch element is connect with a power input port, the control of the second switch element
End processed is connected to the processor, the second end of the first switching element and the second end ground connection of second switch element；
The control circuit further includes first resistor, second resistance, 3rd resistor and the 4th resistance, the first switching element
Control terminal is grounded by first resistor, and the control terminal of the second switch element is grounded by second resistance, the 3rd resistor
It is connected between the control terminal of the power input port and the first switching element, the 4th resistance is connected to described
Between the control terminal of two switch elements and the processor or motherboard power supply；
The 5th resistance, the battery and second light-emitting diodes are also connected between the battery and first light emitting diode
The 6th resistance is also connected between pipe；
First control signal is exported when the processor works to the second switch element, controls the second switch element
Conducting is the tie point to be grounded, so as to which the first switching element be disconnected, at this point, processor control described second
Light emitting diode indicates charged state；
Second control signal is exported when the processor does not work to the second switch element, controls the second switch member
Part is closed, and the tie point receives the voltage of input by the power input port, so as to which the first switching element be led
It is logical, light first light emitting diode.
2. charging indication according to claim 1, which is characterized in that when the battery passes through the power input
Mouthful charging and when increasing voltage, the processor normal work is opened with inputting the first control signal to described second
Element is closed, controls the second switch element conductive so that the tie point to be grounded, so as to which the first switching element be disconnected,
The work of second light emitting diode is controlled by the processor.
3. charging indication according to claim 1 or 2, which is characterized in that the first switching element and second open
Pass element is field-effect tube, and the first end of the first switching element and second switch element, second end and control terminal are right respectively
Answer drain electrode, source electrode and the grid of the field-effect tube.
4. charging indication according to claim 1, which is characterized in that the control terminal of the second switch element passes through
Input/output port GPIO is connected to the processor.
5. charging indication according to claim 1, which is characterized in that the first control signal is believed for high level
Number, the second control signal is low level signal.
6. a kind of mobile terminal, which is characterized in that the mobile terminal includes charging indication, wherein：
The charging indication is such as claim 1-5 any one of them charging indications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510236725.5A CN104882926B (en) | 2015-05-11 | 2015-05-11 | A kind of charging indication and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510236725.5A CN104882926B (en) | 2015-05-11 | 2015-05-11 | A kind of charging indication and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104882926A CN104882926A (en) | 2015-09-02 |
| CN104882926B true CN104882926B (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510236725.5A Expired - Fee Related CN104882926B (en) | 2015-05-11 | 2015-05-11 | A kind of charging indication and mobile terminal |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465971B (en) * | 2017-07-18 | 2019-07-02 | 歌尔股份有限公司 | Chargeable earphone |
| CN110148976A (en) * | 2018-02-12 | 2019-08-20 | 启碁科技股份有限公司 | Electronic device and its control method |
| CN109638912B (en) * | 2018-12-19 | 2022-07-26 | 努比亚技术有限公司 | Charging indicating device and terminal |
| US11079823B1 (en) * | 2020-01-22 | 2021-08-03 | Gulfstream Aerospace Corporation | Method and apparatus for auxiliary port function distinction |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5147108B2 (en) * | 2007-12-03 | 2013-02-20 | シャープ株式会社 | Mobile device |
| CN101877495B (en) * | 2009-04-30 | 2013-01-09 | 深圳富泰宏精密工业有限公司 | Charging indication circuit and portable electronic device applying same |
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| CN104882926A (en) | 2015-09-02 |
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Effective date of registration: 20190715 Address after: 518000 Guangdong city of Shenzhen province Qianhai Shenzhen Hong Kong cooperation zone before Bay Road No. 1 building 201 room A (located in Shenzhen Qianhai business secretary Co. Ltd.) Patentee after: WEISHIBO INFORMATION SERVICE (SHENZHEN) CO.,LTD. Address before: 518053 Guangdong city of Shenzhen province Nanshan District overseas Chinese town in Eastern Industrial Zone H3 building 501B Patentee before: SHENZHEN TINNO WIRELESS TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20190812 Address after: E-S-215-2, Block E, 6596 Dongfanghong Road, Yuanqiao Town, Dezhou Economic and Technological Development Zone, 250000 Shandong Province Patentee after: Dezhou Tang Seng Intellectual Property Service Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen province Qianhai Shenzhen Hong Kong cooperation zone before Bay Road No. 1 building 201 room A (located in Shenzhen Qianhai business secretary Co. Ltd.) Patentee before: WEISHIBO INFORMATION SERVICE (SHENZHEN) CO.,LTD. |
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Effective date of registration: 20200922 Address after: Room 903, block B, Greenland xinduhui, Huangshan East Road, Jinghu District, Wuhu City, Anhui Province 241000 Patentee after: Xu Bing Address before: E-S-215-2, Block E, 6596 Dongfanghong Road, Yuanqiao Town, Dezhou Economic and Technological Development Zone, 250000 Shandong Province Patentee before: Dezhou Tang Seng Intellectual Property Service Co.,Ltd. |
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Effective date of registration: 20221213 Address after: 253000 Room 301, 3 / F, biological industry base, ideal space incubator, national high tech Industrial Development Zone, Dezhou City, Shandong Province (Yucheng) Patentee after: Shandong Xuzhao Biotechnology Co.,Ltd. Address before: Room 903, block B, Greenland xinduhui, Huangshan East Road, Jinghu District, Wuhu City, Anhui Province 241000 Patentee before: Xu Bing |
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Granted publication date: 20180619 |