CN108270275A - A kind of indicating circuit for being used to indicate charging process, method and terminal - Google Patents
A kind of indicating circuit for being used to indicate charging process, method and terminal Download PDFInfo
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- CN108270275A CN108270275A CN201810297930.6A CN201810297930A CN108270275A CN 108270275 A CN108270275 A CN 108270275A CN 201810297930 A CN201810297930 A CN 201810297930A CN 108270275 A CN108270275 A CN 108270275A
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- indicating circuit
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- 238000007600 charging Methods 0.000 title claims abstract description 106
- 238000000034 method Methods 0.000 title claims abstract description 57
- 230000008569 process Effects 0.000 title claims abstract description 39
- 230000009471 action Effects 0.000 claims abstract description 22
- 230000003760 hair shine Effects 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 7
- 239000004606 Fillers/Extenders Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 24
- 238000004590 computer program Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
- H02J7/0049—Detection of fully charged condition
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present embodiments relate to a kind of circuit field more particularly to indicating circuit for being used to indicate charging process, method and terminal, to solve the problems, such as that indicator light cannot indicate during trickle charge in the prior art.The indicating circuit of the embodiment of the present invention, the first switch module including the first indicator light and ground connection setting；For being electrically connected with charging equipment, the second end of the first indicator light is electrically connected the first end of first indicator light with the second end of first switch module；The first end of first switch module is used to be electrically connected with the output terminal of charging equipment, first switch module is used under the control of charging signals exported in the output terminal of charging equipment be closed, so that shining under the action of potential difference of first indicator light between charging equipment and first switch module.It realizes and trickle charge process can indicate that by the first indicator light.
Description
Technical field
The present embodiments relate to circuit field more particularly to a kind of indicating circuit for being used to indicate charging process, methods
And terminal.
Background technology
At present, most of terminal is all powered using battery；Such as mobile phone, tablet computer etc..End cell fills
Electric process can be divided into multiple stages.By taking lithium ion battery as an example, the charging process of lithium ion battery is divided into four-stage：Trickle
Charging, constant-current charge, constant-voltage charge and charging termination.The charging modes of lithium ion battery are constant pressure and flows, are integrated circuits
(integrated circuit, abbreviation IC) chip controls.Typically charging modes are：First detect the electricity of battery to be charged
Pressure if voltage is less than trickle charge voltage threshold, first carry out trickle charge.Until voltage is raised to trickle charge voltage threshold
After value, into constant-current charge process.I.e. trickle charge is used for carrying out restorative charging to the lithium ion battery to discharge completely.
Trickle charge is to raise cell voltage, and battery is made to enter the stage of constant-current charge as early as possible, ensures the property of battery
Energy and service life.However, in the prior art, indicator light can not be lighted during there is trickle charge, cause user can not
Know whether terminal has charged.
Invention content
The embodiment of the present invention provides a kind of indicating circuit for being used to indicate charging process, method and terminal, existing to solve
There is the problem of indicator light cannot indicate during trickle charge in technology.
The embodiment of the present invention provides a kind of indicating circuit for being used to indicate charging process, including：First indicator light and ground connection
The first switch module of setting；The first end of first indicator light with charging equipment for being electrically connected, first instruction
The second end of lamp is electrically connected with the second end of the first switch module；The first end of the first switch module is used for and charging
The output terminal electrical connection of equipment, the first switch module are used for the charging signals exported in the output terminal of the charging equipment
Control is lower to be closed, so that potential of first indicator light between the charging equipment and the first switch module
It shines under the action of difference.
Since in the embodiment of the present invention, when charging equipment charges to the charging equipment, first switch is connected
Module, since the potential of ground terminal in first switch module is zero so that the potential of the second end of first switch module and ground connection
The potential at end is identical；Therefore, the potential of the second end of the first indicator light is also zero.And when charging equipment to be charged is set to described
For when being charged, the voltage of charging equipment increases rapidly so that the potential of the first end of the first indicator light is rapidly brought up to one
Fixed value, in this way, foring potential difference between the first end and second end of the first indicator light, the first indicator light is in the work of potential difference
It is shone with lower.It realizes when charging equipment output terminal exports charging signals, the first indicator light can shine；And then it can realize
In the case of low cost, trickle charge process can indicate that by the first indicator light.
In order to realize instruction charging complete, a kind of optional mode is extinguished for the first indicator light.Optionally, the instruction electricity
Road further includes the second switch module of ground connection setting；The first end of the second switch module be used for it is the first of processor general
Input/output or bus extender GPIO electrical connections；The second end of the second switch module and the first switch module
First end is electrically connected；The second switch module is used to be closed when the first GPIO exports first control signal, so as to make
It obtains the first switch module disconnection and first indicator light extinguishes.
The charging process of usual charging equipment is divided into four-stage：It trickle charge, constant-current charge, constant-voltage charge and fills
Electricity terminates.The indicating circuit of trickle charge can be identical with the indicating circuit of constant current, constant-voltage charge, can not also be identical, following
Give the indicating circuit of trickle charge and constant current, the different optionally indicating circuit of indicating circuit of constant-voltage charge.Into one
Step by processor when determining charging complete, can also disconnect the circuit of first indicator light according to the indicating circuit, into
And indicate charging complete.
Optionally, the indicating circuit further includes the third switch module of ground connection setting；The of the third switch module
Two ends are electrically connected with the second end of first indicator light；The first end of the third switch module is used for and the processor
2nd GPIO is electrically connected, and the third switch module is used to be closed when the 2nd GPIO exports second control signal, so as to
So that it shines under the action of potential difference of first indicator light between the charging equipment and the third switch module；
It is disconnected in the 2nd GPIO output third control signals, so that first indicator light extinguishes.
The instruction of charging complete can both be indicated by the circuit of the extinguishing of above-mentioned first indicator light, can also use second
Indicator light shows the color different from the first indicator light to indicate.Optionally, the indicating circuit further include the second indicator light and
It is grounded the 4th switch module of setting；The first end of second indicator light is described for being electrically connected with the charging equipment
The second end of second indicator light is electrically connected with the second end of the 4th switch module；The first end of 4th switch module with
The 3rd GPIO electrical connections of the processor, the 4th switch module are used in the 4th control signal of the 3rd GPIO outputs
When be closed so that potential difference of second indicator light between the charging equipment and the 4th switch module
Effect is lower to shine.
Optionally, the first switch module, the second switch module, the third switch module and the described 4th are opened
It closes module and includes triode；The first end of the first switch module, the first end of the second switch module, the third
The first end of switch module and the first end of the 4th switch module are the base stage of triode；The first switch module
Second end, the second end of the second switch module, the second end of the third switch module and the 4th switch module
Second end is the collector of triode；The ground terminal of the first switch module, the ground terminal of the second switch module, institute
The ground terminal of ground terminal and the 4th switch module for stating third switch module is the emitter of triode.
In order to prevent because the electric current for flowing through triode is larger, triode is damaged.Optionally, the base of the first switch module
Pole is also associated with base stage current-limiting resistance.
The embodiment of the present invention provides a kind of method of instruction terminal charging equipment charging process, including：The processor
First control signal is exported by first universal input/output or bus extender GPIO, the second switch module exists
It is closed under the action of the first control signal and the first switch module disconnects, so that first indicator light extinguishes.
Optionally, the method further includes：The processor passes through described second when exporting the first control signal
GPIO exports second control signal, and the third switch module is closed under the action of the second control signal, so that described
First indicator light shines.
Optionally, the method further includes：The processor is when determining that the charging equipment is fully charged, by described
2nd GPIO output third control signals, the third switch module disconnect under the action of the second control signal, so that
First indicator light extinguishes；During by the 4th control signal of the 3rd GPIO outputs, the 4th switch module closes at
It is closed under the action of the 4th control signal, so that second indicator light shines.
The embodiment of the present invention provides a kind of terminal, including above-mentioned indicating circuit.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for this
For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is a kind of indicating circuit schematic diagram for being used to indicate charging process provided in an embodiment of the present invention；
Fig. 2 is the indicating circuit schematic diagram that another kind provided in an embodiment of the present invention is used to indicate charging process；
Fig. 3 is the indicating circuit schematic diagram that another kind provided in an embodiment of the present invention is used to indicate charging process；
Fig. 4 is the indicating circuit schematic diagram that another kind provided in an embodiment of the present invention is used to indicate charging process；
Fig. 5 is the indicating circuit schematic diagram that another kind provided in an embodiment of the present invention is used to indicate charging process；
Fig. 6 is first switch module and second switch mould in indicating circuit corresponding with Fig. 2 provided in an embodiment of the present invention
Block includes the indicating circuit schematic diagram of triode；
Fig. 7 is first switch module, second switch module in indicating circuit corresponding with Fig. 3 provided in an embodiment of the present invention
Include the indicating circuit of triode with third switch module；
Fig. 8 is first switch module, second switch mould in indicating circuit corresponding with Fig. 4 provided in an embodiment of the present invention
Block, the 4th switch module include the indicating circuit schematic diagram of triode；
Fig. 9 is first switch module, second switch mould in indicating circuit corresponding with Fig. 5 provided in an embodiment of the present invention
Block, third switch module and the 4th switch module include the indicating circuit schematic diagram of triode；
Figure 10 is the indicating circuit schematic diagram that another kind provided in an embodiment of the present invention is used to indicate charging process.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing into
It is described in detail to one step, it is clear that described embodiment is only the implementation of part of the embodiment of the present invention rather than whole
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
All other embodiment, shall fall within the protection scope of the present invention.
Fig. 1 shows a kind of indicating circuit schematic diagram for being used to indicate charging process using the embodiment of the present invention.Such as Fig. 1
Shown, which includes the first switch module 20 of the first indicator light 10 and ground connection setting；First indicator light 10 wraps
Include first end 101 and second end 102；The first switch module includes first end 201 and second end 202；First instruction
The first end 101 of lamp 10 for being electrically connected with charging equipment, with described first open by the second end 102 of first indicator light 10
The second end 202 for closing module 20 is electrically connected；The first end 201 of the first switch module 20 is for the output terminal with charging equipment
Electrical connection, the first switch module 20 are used under the control of charging signals exported in the output terminal of the charging equipment close
It closes, so that potential difference of first indicator light 10 between the charging equipment and the first switch module 20
Effect is lower to shine.
In the embodiment of the present invention, when charging equipment charges to the charging equipment, first switch module is connected,
Since the potential of ground terminal in first switch module is zero so that the potential of the second end of first switch module and the electricity of ground terminal
Gesture is identical；Therefore, the potential of the second end 102 of the first indicator light is also zero.And when charging equipment is to the charging equipment
When being charged, the voltage of charging equipment increases rapidly so that the potential of the first end of the first indicator light is rapidly brought up to centainly
Value, in this way, foring potential difference between the first end and second end of the first indicator light, the first indicator light is in the effect of potential difference
It is lower to shine.It realizes when charging equipment output terminal exports charging signals, the first indicator light can shine；And then it can realize
In the case of low cost, trickle charge process can indicate that by the first indicator light.
In order to realize instruction charging complete, the indicating circuit further includes the second switch module 30 of ground connection setting；Fig. 2 shows
The indicating circuit schematic diagram of charging process is gone out to be used to indicate using the another kind of the embodiment of the present invention, as shown in Fig. 2, the instruction
Circuit includes the first indicator light 10, first switch module 20 and second switch module 30；The second switch module 30 includes the
One end 301 and second end 302, the first end 301 of the second switch module 30 are used for and the first universal input of processor/defeated
Go out or bus extender GPIO is electrically connected；The second end 302 of the second switch module 30 and the first switch module 20
First end 201 is electrically connected；The second switch module 30 is used to be closed when the first GPIO exports first control signal, from
And so that the first switch module 20 disconnects and first indicator light 10 extinguishes.First indicator light 10 and first switch module
20 is identical in Fig. 1, and the connection relation between the first indicator light 10 and first switch module 20 is also identical with Fig. 1, herein
It repeats no more.
When charging is complete, indicating circuit specifically indicates that process is：Processor is controlled to the first GPIO outputs first
Signal processed, first control signal cause second switch module to be connected, and the potential for being grounded the second switch module ground end of setting is
Zero；The second end of second switch module is electrically connected with the first end of first switch module, when second switch module is connected, second
The second end of switch module drags down the first end of first switch module so that first switch module disconnects, and then makes described first
The circuit of indicator light disconnects, and the first indicator light extinguishes, to indicate charging complete.
Optionally, indicating circuit shown in Fig. 2 can also be only used for instruction trickle charge process, when processor determine it is described
At the end of charging equipment trickle charge process, first control signal is exported to the first GPIO, so that the first indicator light extinguishes, into
And it indicates trickle charge and terminates.
The charging process of usual charging equipment is divided into four-stage：It trickle charge, constant-current charge, constant-voltage charge and fills
Electricity terminates.The indicating circuit of trickle charge can be identical with the indicating circuit of constant current, constant-voltage charge, can not also be identical, identical
Situation as shown in Fig. 2, Fig. 3 represent the different situation of indicating circuit.Fig. 3 shows the another kind using the embodiment of the present invention
It is used to indicate the indicating circuit schematic diagram of charging process；As shown in figure 3, the indicating circuit is opened including the first indicator light 10, first
Close module 20, second switch module 30 and third switch module 40；Wherein, the third switch module 40 for being grounded setting includes first
End 401 and second end 402；The second end 402 of the third switch module 40 and 102 electricity of second end of first indicator light 10
Connection；The first end 401 of the third switch module 40 for being electrically connected with the 2nd GPIO of the processor, open by the third
It closes module 40 to be used to be closed when the 2nd GPIO exports second control signal, so that first indicator light 10 is in institute
It states and shines under the action of the potential difference between charging equipment and the third switch module 40；In the 2nd GPIO outputs the
It is disconnected during three control signals, so that first indicator light 10 extinguishes.First indicator light 10, first switch module 20 and second open
It closes module 30 and connection relation between them is identical with Fig. 2, details are not described herein.
In the embodiment of the present invention, during trickle charge, the conducting of first switch module can cause the first indicator light
It is bright, realize the process that trickle charge is indicated by the first indicator light.When trickle charge is completed, processor is exported to the first GPIO
First control signal, the conducting of second switch module, first switch module disconnect so that the circuit of the first indicator light disconnects.In order to
Prevent the first indicator light from extinguishing, processor of the embodiment of the present invention to the first GPIO while first control signal is exported to second
GPIO exports second control signal so that third switch module conducting while first switch module disconnects so that the first instruction
The both ends of lamp form potential difference, and then shine under the action of potential difference, realize instruction constant current, constant-voltage charge process.And
From trickle charge to constant current, during constant-voltage charge, indicator light is not in the phenomenon that sudden strain of a muscle is gone out.
Further, when the final stage for entering charging, processor controls signal to the 2nd GPIO output thirds so that
Third switch module disconnects, that is, is disconnected the circuit of the first indicator light, and the first indicator light extinguishes；Represent charging complete.
In the embodiment of the present invention, in order to which clear indication goes out charging complete, the display different from the first indicator light can be used
Color indicate charging complete, can also indicate charging complete with different indicator lights；Thus introduce the second indicator light 60.
Fig. 4 shows that the another kind using the embodiment of the present invention is used to indicate the indicating circuit schematic diagram of charging process；As shown in figure 4,
The indicating circuit includes the first indicator light 10, first switch module 20, second switch module 30, the 4th switching molding for being grounded setting
50 and second indicator light 60 of block；Second indicator light includes first end 601 and second end 602, the 4th switch module packet
Include first end 601 and second end 602；The first end 601 of second indicator light 60 is used to be electrically connected with the charging equipment,
The second end 602 of second indicator light 60 is electrically connected with the second end 502 of the 4th switch module 50；4th switch
The first end 501 of module 50 is electrically connected with the 3rd GPIO of the processor, and the 4th switch module 50 is used for described the
It is closed during the 4th control signal of three GPIO outputs, so that second indicator light 60 is in the charging equipment and described the
It shines under the action of potential difference between four switch modules.First indicator light 10, first switch module 20 and second switch
Module 30 and connection relation between them are identical in Fig. 2, and details are not described herein；
Instruction trickle charge, constant current, perseverance can be realized by the first indicator light, first switch module and second switch module
Charging process is pressed, when charging is complete, can show by the second indicator light different from the color expression of the first indicator light or the
Two indicator lights are lighted.Specifically：While processor is to the first GPIO output first control signals, to the 4th switch module
The 4th control signal is exported, so that while the extinguishing of the first indicator light, the second indicator light shines.It in this way, can be with clear indication
Go out charging complete.
In the embodiment of the present invention, the first indicator light and the second indicator light can be light emitting diode, the light emitting diode
Including anode and cathode；The first end of first indicator light 10 and second indicator light 60 is anode, and second end is cathode.
First indicator light can be displayed in red, and the second indicator light can show green.
On the basis of realization can indicate that charging complete, indicate that the circuit of trickle charge process can be permanent with instruction
It flows, the circuit of constant-voltage charge differs.Fig. 5 shows that the another kind using the embodiment of the present invention is used to indicate the finger of charging process
Show circuit diagram；As shown in figure 5, the indicating circuit includes the first indicator light 10, first switch module 20, second switch module
30th, the 4th switch module 50 and the second indicator light 60 that third switch module 40, ground connection are set；First indicator light 10,
One switch module 20,30 and the 4th switch module 50 of second switch module and the connection relation between them and the phase in Fig. 4
Together, details are not described herein；The connection relation and Fig. 3 of the third switch module 40 and third switch module and the first indicator light
In it is identical, details are not described herein.The indicating circuit realizes trickle charge and constant current, constant voltage charging circuit difference, and passes through
First indicator light indicates trickle charge, and after the completion of trickle charge, the first indicator light can extinguish；The instruction of second indicator light is permanent
Stream, constant-voltage charge, after charging complete, the second indicator light also extinguishes.
In the embodiment of the present invention, the first switch module, the second switch module, the third switch module and institute
It states the 4th switch module and includes triode；Fig. 6 shows that first switch module and second is opened in indicating circuit corresponding with Fig. 2
Close the indicating circuit schematic diagram that module includes triode；Fig. 7 show first switch module in indicating circuit corresponding with Fig. 3,
Second switch module and third switch module include the indicating circuit schematic diagram of triode；Fig. 8 shows instruction corresponding with Fig. 4
First switch module, second switch module, the 4th switch module include the indicating circuit schematic diagram of triode in circuit；Fig. 9 shows
First switch module, second switch module, third switch module and the 4th switch module in indicating circuit corresponding with Fig. 5 are gone out
Indicating circuit schematic diagram including triode；As Figure 6-9, the first end of the first switch module, the second switch
The first end of the first end of module, the first end of the third switch module and the 4th switch module is the base of triode
Pole；The second end of the first switch module, the second end of the second switch module, the second end of the third switch module
Second end with the 4th switch module is the collector of triode；The ground terminal of the first switch module, described
The ground terminal of the ground terminal of two switch modules, the ground terminal of the third switch module and the 4th switch module is three poles
The emitter of pipe.
In order to prevent because the electric current for flowing through triode is larger, triode is damaged；Optionally, the first switch module 20
Base stage is also associated with base stage current-limiting resistance 70；Optional second switch module 30,40 and the 4th switch module of third switch module
50 can also be connected with base stage current-limiting resistance.
Optionally, in order to control the overcurrent of the first indicator light and the second indicator light, the first switch module includes protection
Resistance 204, third switch module include protective resistance 404, and the 4th switch module includes protective resistance 504.For the ease of
The explanation of indicating circuit, Figure 10 show that the another kind using the embodiment of the present invention is used to indicate the indicating circuit of charging process and shows
It is intended to；As shown in Figure 10, the resistance 204, resistance 404 and resistance 504 are respectively connect with the collector of triode；Described
One indicator light 10, the second indicator light 60, first switch mould 20, second switch module 30, third switch module 40, the 4th switching molding
Block 50 and connection relation between them are identical in Fig. 1 to 9, and details are not described herein.
In the embodiment of the present invention, the first GPIO, the 2nd GPIO and the 3rd GPIO can be in same processor three connect
Mouthful or in different processors.For ease of drawing in Fig. 1 to Figure 10, by the first GPIO, the 2nd GPIO and the 3rd GPIO
It is shown respectively.
The embodiment of the present invention provides a kind of terminal, including any one of indicating circuit described above situation.
Based on identical technical concept, the embodiment of the present invention provides a kind of side of instruction terminal charging equipment charging process
Method, based on indicating circuit shown in Fig. 2, the method for instruction terminal charging equipment charging process includes：The processor passes through
First universal input/output or bus extender GPIO output first control signals, the second switch module is described
It is closed under the action of first control signal and the first switch module disconnects, so that first indicator light 10 extinguishes.
Optionally, based on indicating circuit shown in Fig. 3, the method further includes：The processor is in output described first
When controlling signal, second control signal is exported by the 2nd GPIO, the third switch module is in the described second control letter
It is closed under the action of number, so that first indicator light 10 shines.
Optionally, based on Fig. 4 and indicating circuit shown in fig. 5, the method further includes：The processor is determining described
When charging equipment is fully charged, third is exported by the 2nd GPIO and controls signal, the third switch module 40 is described
It is disconnected under the action of second control signal, so that first indicator light 10 extinguishes；Pass through the 4th control of the 3rd GPIO outputs
During signal processed, the 4th switch module is closed under the action of closing at the 4th control signal, so that second instruction
Lamp 60 shines.
It can be seen from the above：In the embodiment of the present invention, when charging equipment charges to the charging equipment
When, first switch module is connected, since the potential of ground terminal in first switch module is zero so that the second of first switch module
The potential at end is identical with the potential of ground terminal；Therefore, the potential of the second end 102 of the first indicator light is also zero.And when charging
When equipment charges to the charging equipment, the voltage of charging equipment increases rapidly so that the first of the first indicator light
The potential at end is rapidly brought up to certain value, in this way, potential difference is formd between the first end and second end of the first indicator light, first
Indicator light shines under the action of potential difference.It realizes when charging equipment output terminal exports charging signals, the first indicator light is
It can shine；And then can realize in the case of low cost, trickle charge process can indicate that by the first indicator light.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method or computer program product.
Therefore, complete hardware embodiment, complete software embodiment or the embodiment in terms of combining software and hardware can be used in the present invention
Form.It is deposited moreover, the present invention can be used to can be used in one or more computers for wherein including computer usable program code
The shape of computer program product that storage media is implemented on (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Formula.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
The processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices is generated for real
The device of function specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction generation being stored in the computer-readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps are performed on calculation machine or other programmable devices to generate computer implemented processing, so as in computer or
The instruction offer performed on other programmable devices is used to implement in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then additional changes and modifications may be made to these embodiments.So appended claims be intended to be construed to include it is excellent
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of indicating circuit for being used to indicate charging process, which is characterized in that including：
First indicator light and the first switch module of ground connection setting；
The first end of first indicator light for being electrically connected with charging equipment, the second end of first indicator light with it is described
The second end electrical connection of first switch module；
For being electrically connected with the output terminal of charging equipment, the first switch module is used for the first end of the first switch module
It is closed under the control of charging signals exported in the output terminal of the charging equipment, so that first indicator light is described
It shines under the action of potential difference between charging equipment and the first switch module.
2. indicating circuit as described in claim 1, which is characterized in that the indicating circuit further includes second that ground connection is set and opens
Close module；
The first end of the second switch module is for the first universal input/output with processor or bus extender GPIO electricity
Connection；
The second end of the second switch module is electrically connected with the first end of the first switch module；The second switch module
For being closed when the first GPIO exports first control signal, so that the first switch module disconnects and described the
One indicator light extinguishes.
3. indicating circuit as claimed in claim 2, which is characterized in that the third that the indicating circuit further includes ground connection setting is opened
Close module；
The second end of the third switch module is electrically connected with the second end of first indicator light；
The first end of the third switch module with the 2nd GPIO of the processor for being electrically connected, the third switch module
For being closed when the 2nd GPIO exports second control signal, so that first indicator light to be charged is set described
It shines under the action of the standby potential difference between the third switch module；In the 2nd GPIO output third control signals
It disconnects, so that first indicator light extinguishes.
4. indicating circuit as claimed in claim 2 or claim 3, which is characterized in that the indicating circuit further include the second indicator light and
It is grounded the 4th switch module of setting；
The first end of second indicator light for be electrically connected with the charging equipment, the second end of second indicator light and
The second end electrical connection of 4th switch module；
The first end of 4th switch module is electrically connected with the 3rd GPIO of the processor, and the 4th switch module is used for
The 3rd GPIO output the 4th control signal when be closed so that second indicator light the charging equipment with
It shines under the action of potential difference between 4th switch module.
5. circuit as claimed in claim 4, which is characterized in that the first switch module, the second switch module, described
Third switch module and the 4th switch module include triode；
The first end of the first switch module, the first end of the second switch module, the third switch module first
The first end of end and the 4th switch module is the base stage of triode；
The second end of the first switch module, the second end of the second switch module, the third switch module second
The second end of end and the 4th switch module is the collector of triode；
The ground terminal of the first switch module, the ground terminal of the second switch module, the third switch module ground connection
The ground terminal of end and the 4th switch module is the emitter of triode.
6. circuit as claimed in claim 5, which is characterized in that the base stage of the first switch module 20 is also associated with base stage limit
Leakage resistance.
A kind of 7. method of instruction terminal charging equipment charging process, which is characterized in that suitable for such as claim 2 to 6 times
Indicating circuit described in one；The method includes：
The processor exports first control signal by first universal input/output or bus extender GPIO, described
Second switch module is closed under the action of the first control signal and the first switch module disconnects, so that described first
Indicator light extinguishes.
8. the method for claim 7, which is characterized in that further include：
The processor exports second control signal when exporting the first control signal, by the 2nd GPIO, described
Third switch module is closed under the action of the second control signal, so that first indicator light shines.
9. such as 7 or 8 any one of them method of claim, which is characterized in that further include：
The processor exports third when determining that the charging equipment is fully charged, by the 2nd GPIO and controls signal,
The third switch module disconnects under the action of the second control signal, so that first indicator light extinguishes；Pass through institute
When stating the 4th control signal of the 3rd GPIO outputs, the 4th switch module closes under the action of closing at the 4th control signal
It closes, so that second indicator light shines.
10. a kind of terminal, which is characterized in that including 1 to 6 any one of them indicating circuit of the claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810297930.6A CN108270275A (en) | 2018-03-30 | 2018-03-30 | A kind of indicating circuit for being used to indicate charging process, method and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810297930.6A CN108270275A (en) | 2018-03-30 | 2018-03-30 | A kind of indicating circuit for being used to indicate charging process, method and terminal |
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| Publication Number | Publication Date |
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| CN108270275A true CN108270275A (en) | 2018-07-10 |
Family
ID=62777379
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810297930.6A Pending CN108270275A (en) | 2018-03-30 | 2018-03-30 | A kind of indicating circuit for being used to indicate charging process, method and terminal |
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| CN (1) | CN108270275A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109638912A (en) * | 2018-12-19 | 2019-04-16 | 努比亚技术有限公司 | A kind of charge indication means, terminal |
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