CN104362406B - The charge control method of mobile terminal and mobile terminal - Google Patents
The charge control method of mobile terminal and mobile terminal Download PDFInfo
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- CN104362406B CN104362406B CN201410579254.3A CN201410579254A CN104362406B CN 104362406 B CN104362406 B CN 104362406B CN 201410579254 A CN201410579254 A CN 201410579254A CN 104362406 B CN104362406 B CN 104362406B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of charge control method of mobile terminal, the charge control of described mobile terminal comprises the following steps：Obtain the voltage at the linear-charging device two ends of battery in connection external power source and terminal, first judge that whether linear-charging device connects the voltage of one end of external power source more than setting value；If so, then judge whether the voltage difference at terminal linear charging device two ends is more than setting value again；If so, then obtain the current temperature value of linear-charging device and judge whether described temperature value exceedes the temperature threshold of setting；If exceeding the temperature threshold of setting, reduce the maximum current value of linear-charging device according to described temperature value.The invention also discloses a kind of mobile terminal of employing said method.The present invention has the effect to reduce caloric value for the charging current accurately determining a need for reducing linear-charging device.
Description
Technical field
The present invention relates to the charge control method of mobile terminal and mobile terminal.
Background technology
Linear-charging is applied to low current charge, such as charging current 1A, and it has, and to realize structure relatively low compared with simple, cost
Feature, therefore, mobile terminal generally has linear-charging device, by linear-charging device be mobile terminal battery carry out
Charge.When mobile terminal charges, when being particularly in constant-current charging phase, certain heat can be produced, but this heat differing
Surely it is the principal element bringing the whole machine of mobile terminal hot.Such as mobile terminal is in that high frequency runs and screen is when light,
Processor and screen can produce substantial amounts of heat, so that mobile terminal is hot, and the heat of generation of now charging is not
The hot principal element of the whole machine of mobile terminal.And in existing scheme, in order to alleviate the fever phenomenon of mobile terminal, generally moving
When the temperature of the whole machine of terminal is higher, that is, reduce charging current.This will be likely to produce when sacrificing charge efficiency, not up to effectively drop
The problem of low mobile terminal temperature.
Content of the invention
Present invention is primarily targeted at accurately determining a need for reducing the charging current of linear-charging device to drop
Lower calorific value.
For achieving the above object, the charge control method of a kind of mobile terminal that the present invention provides, described mobile terminal
Charge control comprises the following steps：
Obtain the current temperature value of the linear-charging device of battery in connection external power source and mobile terminal, judge described temperature
Whether angle value exceedes the temperature threshold of setting；
If exceeding the temperature threshold of setting, reduce the maximum current value of linear-charging device according to described temperature value.
Preferably, the step of the described current value reducing linear-charging device according to described temperature value includes：
The described temperature value obtaining is compared with the temperature range setting, obtains the humidity province belonging to described temperature value
Between and the corresponding pre-set current value of this temperature range；
The maximum current value of linear-charging device is reduced to described pre-set current value from load current value.
Preferably, before obtaining the step of the current temperature value of linear-charging device, also include step：
Obtain current voltage difference between the input of linear-charging device and outfan, whether judge this voltage difference
Exceed the voltage difference threshold value of setting；
If exceeding default voltage difference threshold value, obtain the current temperature value of linear-charging device.
Preferably, obtain current voltage difference between the input of linear-charging device and outfan step it
Before, also include step：
Obtain the magnitude of voltage of the input of current linear charging device, judge whether this magnitude of voltage exceedes setting voltage threshold
Value；
If exceeding setting voltage threshold value, obtain current voltage difference between the input of linear-charging device and outfan
Value.
Preferably, before obtaining the step of the magnitude of voltage of input of current linear charging device, also include step：
Obtain current charging stage information, judge whether to be in constant-current charge state according to described charging stage information；
If being in constant-current charge state, obtain the magnitude of voltage of the input of current linear charging device.
Additionally, to achieve these goals, present invention also offers a kind of mobile terminal, described mobile terminal includes：
Temperature judging unit, the linear-charging device for obtaining battery in connection external power source and mobile terminal is current
Temperature value, judges whether described temperature value exceedes the temperature threshold of setting；
Flow-restriction, if for the temperature threshold exceeding setting, reduce linear-charging device according to described temperature value
Maximum current value.
Preferably, described flow-restriction includes：
Temperature comparing unit, for the described temperature value obtaining is compared with the temperature range setting, obtains described
Temperature range belonging to temperature value and the corresponding pre-set current value of this temperature range；
Current limliting performance element, described default for being reduced to the maximum current value of linear-charging device from load current value
Current value.
Preferably, described mobile terminal also includes：
Pressure reduction judging unit, for obtaining current voltage difference between the input of linear-charging device and outfan,
Judge whether this voltage difference exceedes the voltage difference threshold value of setting；
If exceeding default voltage difference threshold value, described temperature judging unit is notified to obtain the current temperature of linear-charging device
Angle value.
Preferably, described mobile terminal also includes：
Input terminal voltage judging unit, for obtaining the magnitude of voltage of the input of current linear charging device, judges this electricity
Whether pressure value exceedes setting voltage threshold value；
If exceeding setting voltage threshold value, described pressure reduction judging unit is notified to obtain the input of linear-charging device and defeated
Go out current voltage difference between end.
Preferably, described mobile terminal also includes：
Charging stage judging unit, for obtaining current charging stage information, according to the judgement of described charging stage information be
No it is in constant-current charge state；
If being in constant-current charge state, input terminal voltage judging unit is notified to obtain the input of current linear charging device
The magnitude of voltage at end.
The method of the present invention and mobile terminal, by detect linear charging device temperature value, thus see whether be
Linear-charging device creates substantial amounts of heat when charging.When linear-charging device generation amount of heat is detected, pass through
Reduce the maximum current value of linear-charging device, to limit the electric current flowing through linear-charging device, thus reducing caloric value
Effect.
Brief description
Fig. 1 is the schematic flow sheet of the charge control method first embodiment of mobile terminal of the present invention；
Fig. 2 is the schematic flow sheet of the charge control method second embodiment of mobile terminal of the present invention；
Fig. 3 is the schematic flow sheet of the charge control method 3rd embodiment of mobile terminal of the present invention；
Fig. 4 is the schematic flow sheet of the charge control method fourth embodiment of mobile terminal of the present invention；
Fig. 5 is the schematic flow sheet of charge control method the 5th embodiment of mobile terminal of the present invention；
Fig. 6 is the modular diagram of mobile terminal one embodiment of the present invention；
Fig. 7 is the modular diagram of the flow-restriction of mobile terminal shown in Fig. 6.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The present invention provides a kind of charge control method of mobile terminal.
With reference to Fig. 1, Fig. 1 is the schematic flow sheet of the charge control method first embodiment of mobile terminal of the present invention.
In the present embodiment, the charge control method of this mobile terminal includes：
Step S100, obtains the current temperature value of the linear-charging device of battery in connection external power source and mobile terminal.
When mobile terminal is when charging, linear-charging device (such as audion), plays connection external power source and moves eventually
The effect of battery in end；And linear-charging device will limit the maximum current flowing to battery when charging.Linear-charging device
For the main devices of heating, by collecting the temperature inductor of linear-charging device itself or the temperature inductor of extra setting
Information, you can obtain the current temperature value of linear-charging device.
Step S200, judges whether this temperature value exceedes the temperature threshold of setting；If so, then execution step S300；If it is not,
Then execution step S400.
This temperature threshold can be connect by input equipment and arrange from the operation of user or system carries.Logical
Can be often any value between 50 DEG C to 60 DEG C with design temperature threshold value.
Step S300, reduces the maximum current value of linear-charging device according to described temperature value.After adjustment finishes, execute step
Rapid S400.
I.e. when the temperature obtaining exceedes temperature threshold, then reduce the intensity of the charging current to battery for the linear-charging device,
Thus reducing the effect of caloric value.Specifically, can according to the temperature of linear-charging device be higher than temperature threshold degree,
Stair-stepping downward maximum current value；Can also be according to functional relationship, such as exponential function or linear function etc., to lower maximum
Current value, to obtain preferable balance between caloric value and charge efficiency.
Step S400, the time delay M second, accent execution step.
This M second can be 1 second, 3 seconds, 10 seconds or 20 seconds etc..
The method that the present embodiment is provided, by detecting the temperature value of linear charging device, thus it is linear for seeing whether
Charging device creates substantial amounts of heat when charging.When linear-charging device generation amount of heat is detected, by reducing
The maximum current value of linear-charging device, to limit the electric current flowing through linear-charging device, thus reduce the effect of caloric value
Really.
With reference to Fig. 2, Fig. 2 is the schematic flow sheet of the charge control method second embodiment of mobile terminal of the present invention.
The present embodiment, based on first embodiment, has carried out being refined as step to step S300 in first embodiment
S301 and step S302, specifically：
Step S301, the described temperature value obtaining is compared with the temperature range setting, and obtains described temperature value institute
The temperature range belonging to and the corresponding pre-set current value of this temperature range.
The temperature range setting can be to be connect by input equipment to arrange from the operation of user or system carries
's.The quantity of temperature range can be multiple, for example：Temperature threshold is 50 DEG C；Then 50 DEG C to 65 DEG C is that one-level is interval, one-level area
Between corresponding pre-set current value be 700mA；More than 65 DEG C is two grades of intervals, and the corresponding pre-set current value in two grades of intervals is 500mA.
Step S302, the maximum current value of linear-charging device is reduced to described pre-set current value from load current value.
When the temperature of linear-charging device is less than 50 DEG C of temperature threshold, linear-charging device adopts load current value
900mA is maximum current value.When the temperature of linear-charging device is located at first interval, then pre-set current value 700mA is adopted to be
High current value, when the temperature of linear-charging device is located at second interval, then adopts pre-set current value 500mA to be maximum current value.
The method that the present embodiment is provided, the temperature according to linear-charging device is higher than the degree of temperature threshold, stepped
Downward maximum current value, such that it is able to obtain preferable balance between caloric value and charge efficiency.Certainly, said temperature area
Between division be only illustrate, be not limit.
With reference to Fig. 3, Fig. 3 is the schematic flow sheet of the charge control method 3rd embodiment of mobile terminal of the present invention.
The present embodiment, based on first embodiment, has increased step S500 and step S600 newly, specifically：
Before step S100, also include step：
Step S500, obtains current voltage difference between the input of linear-charging device and outfan.
When charging, it is less than the charger of the load current value of charging device according to output current, for example, export electricity
Flow the charger for 800mA, then linear-charging device is in saturated for battery when charging.When linear-charging device
When being in saturated, the voltage difference being loaded onto between the input of linear-charging device and outfan is less, linearly fills
The caloric value of electrical part is also less.It is more than the charger of the load current value of linear-charging device according to output current, such as
Output current is the charger of 1000mA, then linear-charging device is in unsaturation working condition for battery when charging.Work as line
When property charging device is in unsaturation working condition, it is loaded onto the voltage difference between the input of linear-charging device and outfan
Larger, the heating of linear-charging device is also more serious.Therefore, the voltage between the input of linear-charging device and outfan
Difference can also be used as judging whether linear-charging device is in the foundation of serious febrile state.
Step S600, judges whether this voltage difference exceedes the voltage difference threshold value of setting, if so, then execution step S100,
If otherwise execution step S400.
Voltage difference threshold value can be connect by input equipment and arrange from the operation of user or system carries.Logical
Often can be with setting voltage difference limen value any value between 0.1V to 4V.
When the output of the charger connecting is less, linear-charging device is in saturated, linear-charging device
The pressure reduction at two ends is less, then the heat now producing is less and can ignore.Now reduce the maximum current of linear-charging device
Value, will be only capable of reducing charge efficiency.And when the output of the charger connecting is larger, thus leading to the pressure at linear-charging device two ends
When difference is larger, then determined whether according to the temperature of linear-charging device, to determine the need for reducing maximum current value.This
Method disclosed in embodiment, can distinguish the charger of different outputs, it is to avoid when linear-charging device is in saturation work shape
Reduce maximum current value, thus having more intelligent effect during state.
With reference to Fig. 4, Fig. 4 is the schematic flow sheet of the charge control method fourth embodiment of mobile terminal of the present invention.
The present embodiment, based on 3rd embodiment, has increased step S700 and step S800 newly, specifically：
Before step S600, also include：
Step S700, obtains the magnitude of voltage of the input of current linear charging device.
When the output of the charger connecting is less than the maximum current value of linear-charging device, the input of linear-charging device
The magnitude of voltage at end is generally less；And when the output of the charger connecting is more than the maximum current value of linear-charging device, linearly
The magnitude of voltage of the input of charging device is generally larger.
Step S800, judges whether this magnitude of voltage exceedes setting voltage threshold value；If so, then execution step S700；If it is not, then
Execution step S400.
This voltage threshold is usually arranged as a value of the voltage vcc more than battery.The present embodiment passes through increase and judges line
Property charging device outfan magnitude of voltage whether more than the voltage threshold of setting, then can further judge linear charger
The current state of part, it is to avoid the phenomenon of erroneous judgement occurs.Specifically, when cell voltage is very low, even if the charger connecting is defeated
Go out the maximum current value less than linear-charging device, now linear-charging device is in saturated, but its two ends it
Between voltage difference also can be larger.Therefore, by above-mentioned further judgement, can avoid being in the linear of saturated
The erroneous judgement that charging device reduces maximum current value occurs.
With reference to Fig. 5, Fig. 5 is the schematic flow sheet of charge control method the 5th embodiment of mobile terminal of the present invention.
The present embodiment, based on fourth embodiment, has increased step S900 and step S1000 newly, specifically：
Also included before step S700：
Step S900, obtains current charging stage information.
Two Main Stage that the linear-charging device of mobile terminal charges are constant-current charge and constant-voltage charge.Constant-current charge
It is using constant large current charge, such as the current value of constant-current charge is 1A even more high.Constant-voltage charge is the voltage in battery
Exceed certain value, after such as 4.1V, using constant voltage, battery is charged, constant voltage charging phase, the electric current of charging can be gradually
Diminish, when electric current is close to 0mA, show that battery has been filled with.In some cases, before constant-current charge, also include preliminary filling.
Step S1000, judges whether to be in constant-current charge state according to described charging stage information；If so, then execute step
Rapid S700, if otherwise execution step S400.
Maximum due in the various states charging, being in electric current during constant-current charge, electric current during constant-voltage charge will be by
Gradually it is reduced to 0.Because electric current is big, then the heating of linear-charging device is also big, then linear-charging device caloric value is concentrated and come across
Constant-current charging phase.And in other stages, such as preliminary filling and constant voltage charging phase, the heating of linear-charging device is less.Therefore,
The method that the present embodiment is provided, it is first determined currently whether be in constant-current charge state, if being not belonging to, after not needing to carry out
Continue and judge and directly execution step S400 is so that judge process is more intelligent.
Present invention also offers a kind of mobile terminal.
Refer to Fig. 6, Fig. 6 is the modular diagram of mobile terminal one embodiment of the present invention.
In the present embodiment, this mobile terminal 10 includes：
Temperature judging unit 101, the temperature value current for obtaining linear-charging device, judge whether this temperature value exceedes
The temperature threshold setting.
When mobile terminal is when charging, linear-charging device (such as audion), plays connection external power source and moves eventually
The effect of battery in end；And linear-charging device will limit the maximum current flowing to battery when charging.Linear-charging device
For the main devices of heating, by collecting the temperature inductor of linear-charging device itself or the temperature inductor of extra setting
Information, you can obtain the current temperature value of linear-charging device.
Flow-restriction 102, if for the temperature threshold exceeding setting, reduce linear-charging device according to described temperature value
Maximum current value.
This temperature threshold can be connect by input equipment and arrange from the operation of user or system carries.Logical
Can be often any value between 50 DEG C to 60 DEG C with design temperature threshold value.When the temperature obtaining exceedes temperature threshold, then reduce
The intensity of the charging current to battery for the linear-charging device, thus reduce the effect of caloric value.Specifically, can be according to line
Property charging device temperature be higher than temperature threshold degree, stair-stepping downward maximum current value；Can also according to functional relationship,
Such as exponential function or linear function etc., to lower maximum current value, to obtain preferably between caloric value and charge efficiency
Balance.
The mobile terminal that the present embodiment is provided, by detect linear charging device temperature value, thus see whether be
Linear-charging device creates substantial amounts of heat when charging.When linear-charging device generation amount of heat is detected, pass through
Reduce the maximum current value of linear-charging device, to limit the electric current flowing through linear-charging device, thus reducing caloric value
Effect.
Refer to Fig. 7, Fig. 7 is the modular diagram of the flow-restriction of mobile terminal shown in Fig. 6.In the present embodiment,
Described flow-restriction 102 includes：
Temperature comparing unit 1021, for the described temperature value obtaining is compared with the temperature range setting, obtains
Temperature range belonging to described temperature value and the corresponding pre-set current value of this temperature range.
The temperature range setting can be to be connect by input equipment to arrange from the operation of user or system carries
's.The quantity of temperature range can be multiple, for example：Temperature threshold is 50 DEG C；Then 50 DEG C to 65 DEG C is that one-level is interval, one-level area
Between corresponding pre-set current value be 700mA；More than 65 DEG C is two grades of intervals, and the corresponding pre-set current value in two grades of intervals is 500mA.
Current limliting performance element 1022, described for being reduced to the maximum current value of linear-charging device from load current value
Pre-set current value.
When the temperature of linear-charging device is less than 50 DEG C of temperature threshold, linear-charging device adopts load current value
900mA is maximum current value.When the temperature of linear-charging device is located at first interval, then pre-set current value 700mA is adopted to be
High current value, when the temperature of linear-charging device is located at second interval, then adopts pre-set current value 500mA to be maximum current value.
The mobile terminal that the present embodiment is provided, the temperature according to linear-charging device is higher than the degree of temperature threshold, rank
The downward maximum current value of scalariform, such that it is able to obtain preferable balance between caloric value and charge efficiency.Certainly, above-mentioned temperature
The interval division of degree is only and illustrates, and is not to limit.
In the present embodiment, described mobile terminal 10 also includes：
Pressure reduction judging unit 103, for obtaining current voltage difference between the input of linear-charging device and outfan
Value, judges whether this voltage difference exceedes the voltage difference threshold value of setting.
When charging, it is less than the charger of the load current value of charging device according to output current, for example, export electricity
Flow the charger for 800mA, then linear-charging device is in saturated for battery when charging.When linear-charging device
When being in saturated, the voltage difference being loaded onto between the input of linear-charging device and outfan is less, linearly fills
The caloric value of electrical part is also less.It is more than the charger of the load current value of linear-charging device according to output current, such as
Output current is the charger of 1000mA, then linear-charging device is in unsaturation working condition for battery when charging.Work as line
When property charging device is in unsaturation working condition, it is loaded onto the voltage difference between the input of linear-charging device and outfan
Larger, the heating of linear-charging device is also more serious.Therefore, the voltage between the input of linear-charging device and outfan
Difference can also be used as judging whether linear-charging device is in the foundation of serious febrile state.
If exceeding default voltage difference threshold value, described temperature judging unit 101 is notified to obtain linear-charging device current
Temperature value.
Voltage difference threshold value can be connect by input equipment and arrange from the operation of user or system carries.Logical
Often can be with setting voltage difference limen value any value between 0.1V to 4V.
When the output of the charger connecting is less, linear-charging device is in saturated, linear-charging device
The pressure reduction at two ends is less, then the heat now producing is less and can ignore.Now reduce the maximum current of linear-charging device
Value, will be only capable of reducing charge efficiency.And when the output of the charger connecting is larger, thus leading to the pressure at linear-charging device two ends
When difference is larger, then determined whether according to the temperature of linear-charging device, to determine the need for reducing maximum current value.This
Mobile terminal disclosed in embodiment, can distinguish the charger of different outputs, it is to avoid when linear-charging device is in saturation work
Make to reduce maximum current value during state, thus having more intelligent effect.
In the present embodiment, described mobile terminal 10 also includes：
Input terminal voltage judging unit 104, for obtaining the magnitude of voltage of the input of current linear charging device, judging should
Whether magnitude of voltage exceedes setting voltage threshold value.
When the output of the charger connecting is less than the maximum current value of linear-charging device, the input of linear-charging device
The magnitude of voltage at end is generally less；And when the output of the charger connecting is more than the maximum current value of linear-charging device, linearly
The magnitude of voltage of the input of charging device is generally larger.
If exceeding setting voltage threshold value, described pressure reduction judging unit 103 is notified to obtain the input of linear-charging device
Current voltage difference and outfan between.
This voltage threshold is usually arranged as a value of the voltage vcc more than battery.The present embodiment passes through increase and judges line
Property charging device outfan magnitude of voltage whether more than the voltage threshold of setting, then can further judge linear charger
The current state of part, it is to avoid the phenomenon of erroneous judgement occurs.Specifically, when cell voltage is very low, even if the charger connecting is defeated
Go out the maximum current value less than linear-charging device, now linear-charging device is in saturated, but its two ends it
Between voltage difference also can be larger.Therefore, by above-mentioned further judgement, can avoid being in the linear of saturated
The erroneous judgement that charging device reduces maximum current value occurs.
In the present embodiment, described mobile terminal 10 also includes：
Charging stage judging unit 105, for obtaining current charging stage information, judges according to described charging stage information
Whether it is in constant-current charge state.
Two Main Stage that the linear-charging device of mobile terminal charges are constant-current charge and constant-voltage charge.Constant-current charge
It is using constant large current charge, such as the current value of constant-current charge is 1A even more high.Constant-voltage charge is the voltage in battery
Exceed certain value, after such as 4.1V, using constant voltage, battery is charged, constant voltage charging phase, the electric current of charging can be gradually
Diminish, when electric current is close to 0mA, show that battery has been filled with.In some cases, before constant-current charge, also include preliminary filling.
If being in constant-current charge state, input terminal voltage judging unit 104 is notified to obtain current linear charging device
The magnitude of voltage of input.
Maximum due in the various states charging, being in electric current during constant-current charge, electric current during constant-voltage charge will be by
Gradually it is reduced to 0.Because electric current is big, then the heating of linear-charging device is also big, then linear-charging device caloric value is concentrated and come across
Constant-current charging phase.And in other stages, such as preliminary filling and constant voltage charging phase, the heating of linear-charging device is less.Therefore,
The mobile terminal that the present embodiment is provided, it is first determined currently whether be in constant-current charge state, if being not belonging to, do not need into
Row subsequently judges and directly execution step S400 is so that judge process is more intelligent.
These are only the preferred embodiments of the present invention, not thereby limit the present invention the scope of the claims, every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (8)
1. a kind of charge control method of mobile terminal is it is characterised in that the charge control of described mobile terminal includes following step
Suddenly：
Obtain current between the input of linear-charging device of battery and outfan in connection external power source and mobile terminal
Voltage difference, judges whether this voltage difference exceedes the voltage difference threshold value of setting；
If exceeding the voltage difference threshold value of described setting, obtain the current temperature value of described linear-charging device；
Judge whether described temperature value exceedes the temperature threshold of setting；
If exceeding the temperature threshold of setting, reduce the maximum current value of linear-charging device according to described temperature value.
2. the charge control method of mobile terminal as claimed in claim 1 is it is characterised in that described drop according to described temperature value
The step of the current value of low linear-charging device includes：
By obtain described temperature value with set temperature range compare, acquisition described temperature value belonging to temperature range with
And the corresponding pre-set current value of this temperature range；
The maximum current value of linear-charging device is reduced to described pre-set current value from load current value.
3. the charge control method of mobile terminal as claimed in claim 1 is it is characterised in that obtaining linear-charging device
Before the step of current voltage difference between input and outfan, also include step：
Obtain the magnitude of voltage of the input of current linear charging device, judge whether this magnitude of voltage exceedes setting voltage threshold value；
If exceeding setting voltage threshold value, obtain current voltage difference between the input of linear-charging device and outfan.
4. the charge control method of mobile terminal as claimed in claim 3 is it is characterised in that obtaining current linear charger
Before the step of the magnitude of voltage of the input of part, also include step：
Obtain current charging stage information, judge whether to be in constant-current charge state according to described charging stage information；
If being in constant-current charge state, obtain the magnitude of voltage of the input of current linear charging device.
5. a kind of mobile terminal is it is characterised in that described mobile terminal includes：
Pressure reduction judging unit, for obtain connection external power source and mobile terminal in battery linear-charging device input and
Current voltage difference between outfan, judges whether described voltage difference exceedes the voltage difference threshold value of setting；
Temperature judging unit, if exceed the voltage difference threshold value of described setting for described power supply difference, obtains and described linearly fills
The current temperature value of electrical part, judges whether described temperature value exceedes the temperature threshold of setting；
Flow-restriction, if for the temperature threshold exceeding setting, reduce the maximum of linear-charging device according to described temperature value
Current value.
6. mobile terminal as claimed in claim 5 is it is characterised in that described flow-restriction includes：
Temperature comparing unit, for the described temperature value obtaining is compared with the temperature range setting, obtains described temperature
Temperature range belonging to value and the corresponding pre-set current value of this temperature range；
Current limliting performance element, for being reduced to described predetermined current by the maximum current value of linear-charging device from load current value
Value.
7. mobile terminal as claimed in claim 5 is it is characterised in that described mobile terminal also includes：
Input terminal voltage judging unit, for obtaining the magnitude of voltage of the input of current linear charging device, judges this magnitude of voltage
Whether exceed setting voltage threshold value；
If exceeding setting voltage threshold value, described pressure reduction judging unit is notified to obtain input and the outfan of linear-charging device
Between current voltage difference.
8. mobile terminal as claimed in claim 7 is it is characterised in that described mobile terminal also includes：
Charging stage judging unit, for obtaining current charging stage information, judges whether to locate according to described charging stage information
In constant-current charge state；
If being in constant-current charge state, input terminal voltage judging unit is notified to obtain the input of current linear charging device
Magnitude of voltage.
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| CN104993180A (en) * | 2015-05-26 | 2015-10-21 | 努比亚技术有限公司 | Terminal charging method and device |
| CN105846486A (en) * | 2015-06-30 | 2016-08-10 | 维沃移动通信有限公司 | Method and device for adjusting heating value of charging circuit |
| CN105070965B (en) * | 2015-09-07 | 2017-11-28 | 小米科技有限责任公司 | Charging method, device and the terminal of terminal |
| CN106602616A (en) * | 2015-10-14 | 2017-04-26 | 深圳市中兴微电子技术有限公司 | Charging method and mobile terminal |
| CN106557136A (en) * | 2016-11-29 | 2017-04-05 | 维沃移动通信有限公司 | Temperature-controlled process and mobile terminal during a kind of charging |
| WO2018148686A1 (en) * | 2017-02-10 | 2018-08-16 | Dialog Semiconductor Inc. | Thermal de-rating for a multi-mode switching power converter |
| CN107332316B (en) * | 2017-08-23 | 2021-11-02 | 努比亚技术有限公司 | Stepped charging method, mobile terminal and computer-readable storage medium |
| CN108336791B (en) * | 2018-03-09 | 2020-12-18 | 联想(北京)有限公司 | Charging control method and electronic device |
| EP3893357A4 (en) * | 2018-12-27 | 2021-12-29 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Charging method and apparatus, device to be charged, storage medium, and chip system |
| CN112019681B (en) * | 2019-05-31 | 2021-10-26 | 北京小米移动软件有限公司 | Control method of mobile terminal, mobile terminal and storage medium |
| CN110474387B (en) * | 2019-07-30 | 2024-01-30 | Oppo广东移动通信有限公司 | Charging control method, electronic device and computer storage medium |
| CN113140817B (en) * | 2020-01-19 | 2022-10-14 | 苏州宝时得电动工具有限公司 | Charging control method and device, computer readable storage medium and charger |
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| US5844399A (en) * | 1996-07-26 | 1998-12-01 | The University Of Toledo | Battery charger control system |
| CN101488589B (en) * | 2008-01-15 | 2011-03-09 | 宏达国际电子股份有限公司 | Battery assembly and charging state measurement method |
| CN101854071B (en) * | 2010-06-29 | 2013-05-08 | 沈阳和信恒实业有限公司 | Intelligent multi-stage constant current charger |
| CN103413985B (en) * | 2013-07-29 | 2015-05-06 | 河南超威电源有限公司 | Environmental temperature-based quick charging method of lead-acid storage battery for electric motor car |
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Address after: 518057 Guangdong province Shenzhen city Nanshan District high tech park, No. 9018 North Central Avenue, building A, floor six, Han's innovation Applicant after: Nubian Technologies Ltd. Address before: 518057 Guangdong province Shenzhen city Nanshan District high tech park, No. 9018 North Central Avenue, building A, floor six, Han's innovation Applicant before: Shenzhen ZTE Mobile Tech Co., Ltd. |
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