CN106655343B - A kind of charging method and device of mobile terminal - Google Patents
A kind of charging method and device of mobile terminal Download PDFInfo
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- CN106655343B CN106655343B CN201611020877.2A CN201611020877A CN106655343B CN 106655343 B CN106655343 B CN 106655343B CN 201611020877 A CN201611020877 A CN 201611020877A CN 106655343 B CN106655343 B CN 106655343B
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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
- H02J7/007—Regulation of charging or discharging current or voltage
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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
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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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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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the invention provides a kind of charging method of mobile terminal and device, there is battery, charging chip and load device, which comprises detect and access charger in the terminal in mobile terminal；The charger is charged to the battery with preset first initial current value by the charging chip；First initial current value is increased into first object current value in the charging chip, so that the mobile terminal and/or the charger reach specified charging performance；The charger is connected into the battery by the load device, to charge according to the first object current value to the battery.The embodiment of the present invention can dynamically adjust charging current according to the charging performance of current charger, it takes full advantage of mobile terminal and the straight of charger fills charging ability, due to directly being filled, reduce the charging time, improve charge efficiency, and, it does not modify to hardware, greatly reduces cost.
Description
Technical field
The present invention relates to fields of communication technology, charging method and a kind of mobile terminal more particularly to a kind of mobile terminal
Charging unit.
Background technique
With the development of communication science and technology, the mobile terminals such as mobile phone, bracelet, wrist-watch are in the work of people, study, daily
The utilization rate of the various aspects such as exchange is also higher and higher.
Since the power consumption of mobile terminal is larger, cause battery capacity larger, in order to save the charging time, has had at present very
It is charged the battery in more movements using the mode directly filled.
Since charger is inconvenient to carry, in many cases, user will not be carried, and when needing to charge, may be selected
Select the charger for borrowing other people.
In order to avoid the power-supply system to mobile terminal causes to damage, one is usually arranged when charging using these chargers
Fixed charging current, and the current value very little of this charging current, such as 2A.
Charger can be wasted in this way and the straight of mobile terminal fills charging ability, due to commonly being charged, when leading to charging
Between it is long, charge efficiency is low.
Summary of the invention
In view of the above problems, charging performance leads to the problem that the charging time is long, charge efficiency is low in order to solve above-mentioned limitation,
The embodiment of the present invention proposes the charging method and a kind of charging unit of mobile terminal accordingly of a kind of mobile terminal.
According to one aspect of the present invention, provide a kind of charging method of mobile terminal, have in mobile terminal battery,
Charging chip and load device, which comprises
It detects and accesses charger in the terminal；
The charger is filled the battery with preset first initial current value by the charging chip
Electricity；
First initial current value is increased into first object current value in the charging chip, so that the movement
Terminal and/or the charger reach specified charging performance；
By the charger by the load device connection battery, with according to the first object current value to described
Battery charges.
Optionally, after described the step of detecting access charger in the terminal, the method also includes:
Judge the charger to be whether mating with the mobile terminal；
If so, the charger is connected the battery by the load device, according to preset charging current pair
The battery charges；
If it is not, then executing the described the step of charger charges to the battery by the charging chip.
Optionally, the charger is passed through into the charging chip to the battery, initially with preset first described
After the step of current value is charged, the method also includes:
Determine that the charger support charges to the battery by the load device；
And/or
It determines currently to meet and preset directly fills condition；
Wherein, the straight condition of filling includes following one or more:
The charger adjustable output voltage, charging are in constant-current phase, battery temperature within the scope of default temperature.
It is optionally, described that first initial current value is increased into first object current value in the charging chip,
So that the mobile terminal and/or the charger include: the step of reaching specified charging performance
In the charging chip by based on first initial current value, increase by the first current differential, obtain the
One intermediate current value；
Judge whether the current output voltage values of the charger are less than preset first voltage threshold value；
If so, determining that the mobile terminal and/or the charger reach specified charging performance, in described first
Between current value as first object current value；
If it is not, then in the charging chip by based on first intermediate current value, increase the first current differential, obtain
The first intermediate current value newly is obtained, it is preset whether the return execution output voltage values for judging that the charger is current are less than
The step of first voltage threshold value.
It is optionally, described that first initial current value is increased into first object current value in the charging chip,
So that the output voltage values of the charger can be used for the step of directly filling further include:
The second current differential is subtracted on the basis of the first object current value, as new first object current value.
Optionally, further includes:
Initial voltage value is set in the load device, so that the output current value of the charger is preset second
Initial current value；
Second initial current value is increased into the second target current value in the load device, so that described mobile whole
End and/or the charger reach specified charging performance；
Third target current value is determined according to the first object current value and second target current value；
It charges according to the third target current value to the battery.
Optionally, described that second initial current value is increased into the second target current value in the load device, with
Make the output voltage values of the charger can be used for the step of directly filling to include:
Based in the load device by second initial current value, increase third current differential, obtains second
Intermediate current value；
Judge whether the current output voltage values of the charger are less than preset second voltage threshold value；
If so, determining that the mobile terminal and/or the charger reach specified charging performance, in described second
Between current value as the second target current value；
If it is not, based on then in the load device by second intermediate current value, increasing third current differential, obtain
Intermediate current value newly is obtained, execution is returned and judges whether the output voltage values of the charger are less than preset second voltage thresholding
The step of value.
Optionally, described that second initial current value is increased into the second target current value in the load device, with
Make the output voltage values of the charger can be used for the step of directly filling, further includes:
The second current differential is subtracted on the basis of second target current value, as the second new target current value.
According to another aspect of the present invention, provide a kind of charging unit of mobile terminal, have in mobile terminal battery,
Charging chip and load device, described device include:
Charger is inserted into detection module, accesses charger in the terminal for detecting；
First charging module, for the charger to be passed through the charging chip to the battery, with preset first
Initial current value charges；
First charging current adjustment module, for first initial current value to be increased in the charging chip
One target current value, so that the mobile terminal and/or the charger reach specified charging performance；
Second charging module, for by the charger by the load device connection battery, according to described the
One target current value charges to the battery.
Optionally, further includes:
Mating detection module, for judging the charger to be whether mating with the mobile terminal；If so, calling the
Four charging modules, if it is not, then calling the first charging module；
4th charging module, for the charger to be connected the battery by the load device, according to preset
Charging current charges to the battery.
Optionally, further includes:
Support determining module directly is filled, for determining that the charger is supported the battery to be filled by the load device
Electricity.
In one embodiment of the invention, which can also include following module:
The straight condition of filling meets determining module, preset directly fills condition for determining currently to meet；
Wherein, the straight condition of filling includes following one or more:
The charger adjustable output voltage, charging are in constant-current phase, battery temperature within the scope of default temperature.
Optionally, the first charging current adjustment module includes:
First electric current increase submodule, in the charging chip by based on first initial current value,
Increase by the first current differential, obtains the first intermediate current value；
First threshold value judging submodule, for judging it is preset whether the current output voltage values of the charger are less than
First voltage threshold value；If so, calling first to determine submodule, if it is not, the second electric current is then called to increase submodule；
First determines submodule, for determine the mobile terminal and/or the charger reach specified charging performance,
Using first intermediate current value as first object current value；
Second electric current increase submodule, in the charging chip by based on first intermediate current value, increase
Add the first current differential, obtain the first new intermediate current value, returns and call the first threshold value submodule.
Optionally, the first charging current adjustment module further include:
First electric current subtracts submodule, for subtracting the second current differential on the basis of the first object current value,
As new first object current value.
Optionally, further includes:
Voltage setup module, for initial voltage value to be arranged in the load device, so that the output of the charger
Current value is preset second initial current value；
Second charging current adjustment module, for second initial current value to be increased to second in the load device
Target current value, so that the mobile terminal and/or the charger reach specified charging performance；
Target current value determining module, for being determined according to the first object current value and second target current value
Third target current value；
Third charging module, for charging according to the third target current value to the battery.
Optionally, the second charging current adjustment module includes:
Third electric current increases submodule, based in the load device by second initial current value, increases
Add third current differential, obtains the second intermediate current value；
Second threshold value judging submodule, for judging it is preset whether the current output voltage values of the charger are less than
Second voltage threshold value；If so, calling is secondary to can determine that submodule, if it is not, then the 4th electric current is called to increase submodule；
It is secondary to can determine that submodule, for determining that the mobile terminal and/or the charger reach specified charging
Performance, using second intermediate current value as the second target current value；
4th electric current increases submodule, based in the load device by second intermediate current value, increases
Add third current differential, obtain new intermediate current value, returns and call the second threshold value judging submodule.
Optionally, the second charging current adjustment module further include:
Second electric current subtracts submodule, for subtracting the second current differential on the basis of second target current value,
As the second new target current value.
The embodiment of the present invention includes following advantages:
When the embodiment of the present invention detects access charger in the terminal, by charger by charging chip to electricity
Pond is commonly charged with preset first initial current value, is controlled charging chip for the first initial current value and is increased to first
Charger is connected electricity by load device so that mobile terminal and/or charger reach specified charging performance by target current value
Pond is filled with carrying out low-pressure direct to battery according to first object current value so that mobile terminal by the charger of non-standard configuration into
Row charging when, can dynamically adjust charging current according to the charging performance of current charger, take full advantage of mobile terminal with
Charger directly fills charging ability, due to directly being filled, reduces the charging time, improves charge efficiency, also, not to hard
Part is modified, and cost is greatly reduced.
Detailed description of the invention
Fig. 1 is a kind of step flow chart of the charging method embodiment of mobile terminal of the invention；
Fig. 2 is a kind of topology example figure of mobile terminal of the embodiment of the present invention；
Fig. 3 is the step flow chart of the charging method embodiment of another mobile terminal of the invention；
Fig. 4 is a kind of structural block diagram of the charging unit embodiment of mobile terminal of the invention；
Fig. 5 is the structural block diagram of the charging unit embodiment of another mobile terminal of the invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Referring to Fig.1, a kind of step flow chart of the charging method embodiment of mobile terminal of the invention is shown.
In embodiments of the present invention, as shown in Fig. 2, having battery U4, charging chip U2 and load device in mobile terminal 200
U1。
Wherein, battery U4 provides electric energy for the electronic device of mobile terminal 200.
Since battery U4 is mostly lithium battery, performance is unstable, and charging chip U2 can provide charge protection function to battery U4
Can, common charge function is provided, control charging modes are pressure limiting constant current, and function includes:
One, heat limitation protection
When charging temperature is excessively high, charging chip U2 automatically adjusts charging current, and the temperature of charging chip U2 generally has one
A maximum value, such as 150 DEG C, when charging current is within the scope of the maximum charging current of setting, can with charging chip U2 temperature from
Dynamic to adjust, such as more than 100 DEG C, electric current reduces, into the state of constant-voltage charge.
Its charging modes is generally divided into trickle, constant current, three kinds of constant pressure, when the voltage of battery U4 is lower than setting value Vmin(such as
The voltage of 3V) Shi Jinhang trickle, battery U4 rises to VminWhen (such as 3V), switch to constant current IconstCharging reaches about constant voltage
VconstSwitch to constant-voltage charge when (such as 4.2V), holding voltage is Vconst(such as 4.2V), when charging current is less than judgment threshold (one
As be Iconst10% or so, it is adjustable), indicator light export low level, indicate battery U4 charging complete.
Two, overvoltage protection
When battery U4 builtin voltage is excessive, shutdown voltage mode can be automatically generated to guarantee that charger is not damaged, such as
Fruit VDCINLess than UVAT, then charger also remains in charging abnormal patterns, carry out voltage lockout, internal circuitry senses entry ISET
Foot current potential, if non-essential resistance vacantly leads to VISETGreater than VMSD, shutdown mode will be entered.
Load device U1 directly can establish or disconnect the connection between charger 210 and battery U4 so that charging current from
Charger 210 directly reaches battery U4, without being subjected to charging chip U2, provides low-pressure direct and fills function.
So-called low-pressure direct fills, and refers to and is directly charged the battery using voltage difference, i.e., is adjusted to the transmission of electricity pressure of charger
The slightly above voltage of battery, the electric current obtained using voltage difference divided by impedance carry out the plug-in to battery.
In addition, load device U1 can also provide the functions such as impedance adjusting.
It should be noted that the mobile terminal of different model, charging chip, the function of loading device may be poor
It is different, in addition, other electronic components, processor U3 as shown in Figure 2, monitoring unit U5 (monitoring can also be arranged in mobile terminal
The voltage of battery U4), logical AND gate circuit U 6, etc., the embodiments of the present invention are not limited thereto.
In embodiments of the present invention, this method can specifically include following steps:
Step 101, it detects and accesses charger in the terminal.
In the concrete realization, the embodiment of the present invention can be applied in various mobile terminals, for example, mobile phone, tablet computer,
Personal digital assistant, wearable device (such as glasses, wrist-watch) etc..
The operating system of the mobile terminal may include Android (Android), IOS, Windows Phone, Windows etc.
Deng the embodiments of the present invention are not limited thereto.
In the concrete realization, there is a register in the chip of the power supply of mobile terminal, when insertion or extract charging
When device, the variation of a level signal can be generated, and then generates an interruption, it, can by reading the register in the interruption
It is insertion charger or extraction charger with judgement.
In one embodiment of the invention, after step 101, can also judge charger for mobile terminal whether
It is mating.If so, charger is connected the battery by load device, to fill according to preset charging current to battery
Electricity.If it is not, thening follow the steps 102.
In the concrete realization, the interface of mobile terminal configures a pin, mobile whole such as the USB ID pin of TpyeC
When terminating into standard configuration charger, which is pulled low, when mobile terminal accesses non-standard charger, the pin floating.
When mobile terminal is inserted into charger, can carry out by reading the state of the pin judging the charger whether be
The charger of standard configuration.
If the charger is the charger of standard configuration, low-pressure direct can be carried out according to the current versus cell of regulation and filled.
If the charger is the charger of non-standard configuration, can commonly be charged to battery.
Step 102, the charger is passed through into the charging chip to the battery, with preset first initial current value
It charges.
In the concrete realization, charger and battery can be connected by charging chip, is commonly charged to battery.
For the charger of non-standard configuration, a relatively low electric current can be written in the register of some in charging chip
Value, itself adjustable impedance of charging chip, charging current is adjusted to the current value, is commonly charged.
In one embodiment of the invention, after step 102, it fills, can be examined as follows in order to carry out low-pressure direct
It surveys:
1, support detection is directly filled
In this detection, whether the charger that can detecte mobile terminal access is supported directly to fill.
If support is directly filled, it is determined that charger is supported to charge the battery by loading device.
If not supporting directly to fill, continue common charging.
In the concrete realization, it can detecte whether the charger is supported directly to fill charge protocol, then can determine the charger
Whether support directly to fill.
If charger support directly fills charge protocol, charger support is directly filled, conversely, the charger is not supported directly
Charge protocol is filled, then can determine that the charger is not supported directly to fill.
It should be noted that directly fill charge protocol for different, as QuickCharge, VOOC, Pump Express,
TI MaxCharge etc., with the different detection methods for directly filling charge protocol, for example, for QuickCharge, Ke Yixiang
Charger sends the voltage of a specified waveform, if the charger feeds back the voltage of another specified waveform, which is supported
QuickCharge, otherwise, the charger do not support QuickCharge, and the embodiments of the present invention are not limited thereto.
2, condition detection is directly filled
In this detection, current charging environment can be detected, determine currently to meet and preset directly fill condition.
Wherein, directly the condition of filling includes following one or more:
Charger adjustable output voltage, charging are in constant-current phase, battery temperature within the scope of default temperature.
Output voltage whether adjustable for charger, can detecte whether the charger supports adjustable output voltage
Directly fill charge protocol, if the charger support adjustable output voltage directly fill charge protocol, such as QuickCharge, then
The charger adjustable output voltage, conversely, the unadjustable output voltage of the charger.
Constant-current phase is in for charging, can be judged by detecting the voltage of battery, generally in 3.5V to 4.2V
Between, it can be considered as in constant-current phase.
If battery temperature within the scope of default temperature, indicates that voltage temperature is normal, performance is relatively stable, conversely, table
Show that voltage temperature is higher, performance is more unstable.
Certainly, the above-mentioned straight condition of filling is intended only as example, in implementing the embodiments of the present invention, can set according to the actual situation
It sets other and directly fills condition, the embodiments of the present invention are not limited thereto.In addition, in addition to it is above-mentioned directly fill condition other than, art technology
Personnel directly can also fill condition using other according to actual needs, and the embodiment of the present invention is also without restriction to this.
Step 103, first initial current value is increased into first object current value in the charging chip, so that
The mobile terminal and/or the charger reach specified charging performance.
In the concrete realization, in order to make full use of charger directly fill performance, can be arranged in charging chip one compared with
The first low initial current value, control charging chip are stepped up the first initial current value, meanwhile, monitoring mobile terminal, charging
The performance of device, to reach its specified charging performance.
For example, some charger identification " 3.6-6.0V 3.0A ", " 6.0-9.0V 2.0A ", " 9.0-12V 1.5A ", table
The output power for showing charger is 18W, and when output voltage is between 3.6V to 6V, the maximum value for exporting electric current is 3A, output electricity
When being pressed between 6V to 9V, the maximum value for exporting electric current is 2.0V, when output voltage is between 9V to 12V, exports electric current most
Big value is 1.5A.
In one embodiment of the invention, step 103 may include following sub-step:
Sub-step S11, in the charging chip by based on first initial current value, increase the first current difference
Value obtains the first intermediate current value；
Sub-step S12, judges whether the current output voltage values of the charger are less than preset first voltage threshold value；
If so, sub-step S13 is executed, if it is not, then executing sub-step S14；
Sub-step S13 determines that the mobile terminal and/or the charger reach specified charging performance, with described
One intermediate current value is as first object current value；
Sub-step S14, in the charging chip by based on first intermediate current value, increase the first current difference
Value obtains new intermediate current value, returns and executes sub-step S12.
In embodiments of the present invention, a preliminary charging current (i.e. first initial electricity can be set in charging chip
Flow valuve, such as 1A), then at interval of the regular hour, controls charging chip and improve charging current, meanwhile, detection charger is current
Output voltage.
Due to the output power of charger be it is fixed, when charging current increase when, output voltage can gradually drop
It is low.
When reaching the rated output ability of charger, output voltage has a more apparent decline.
At this point, charging current is continued growing, when output voltage is less than fixed threshold value, it is believed that have reached
The maximum output ability of the charger records current charging current Ib.
In another embodiment of the present invention, step 103 can also include following sub-step:
Sub-step S15 subtracts the second current differential on the basis of the first object current value, as the first new mesh
Mark current value.
In order to preferably protect charger, avoid the fluctuation of electric current more than the range that charger can be born, of the invention real
It applies in example, it is Ic, Ic=Ib- Δ I that straight charging stream, which can be set, and wherein Δ I is a fixed current differential.
Step 104, the charger is connected into the battery by the load device, according to the first object electric current
Value charges to the battery.
In the concrete realization, the connection that charger and battery can be disconnected in charging chip is connected in load device and is filled
Electric appliance and battery.
The impedance (digital regulation resistance R6 as shown in Figure 2) of load device is adjusted, so that the output electricity of charger
Flow valuve is first object current value.
When the embodiment of the present invention detects access charger in the terminal, by charger by charging chip to electricity
Pond is commonly charged with preset first initial current value, is controlled charging chip for the first initial current value and is increased to first
Charger is connected electricity by load device so that mobile terminal and/or charger reach specified charging performance by target current value
Pond is filled with carrying out low-pressure direct to battery according to first object current value so that mobile terminal by the charger of non-standard configuration into
Row charging when, can dynamically adjust charging current according to the charging performance of current charger, take full advantage of mobile terminal with
Charger directly fills charging ability, due to directly being filled, reduces the charging time, improves charge efficiency, also, not to hard
Part is modified, and cost is greatly reduced.
Referring to Fig. 3, the step flow chart of the charging method embodiment of another mobile terminal of the invention is shown, it is mobile
There is battery, charging chip and load device, this method can specifically include following steps in terminal:
Step 301, it detects and accesses charger in the terminal.
Step 302, the charger is passed through into the charging chip to the battery, with preset first initial current value
It charges.
Step 303, first initial current value is increased into first object current value in the charging chip, so that
The mobile terminal and/or the charger reach specified charging performance.
Step 304, the charger is connected into the battery by the load device, according to the first object electric current
Value charges to the battery.
Step 305, initial voltage value is set in the load device, so that the output current value of the charger is pre-
If the second initial current value.
Step 306, second initial current value is increased into the second target current value in the load device, so that institute
It states mobile terminal and/or the charger reaches specified charging performance.
In the terminal, state directly is filled for battery, can be set a flag bit, such as direct_chg_flag,
When directly being filled to battery, 1 can be set, otherwise sets 0.
In embodiments of the present invention, when detecting that battery is directly filled by flag bit, in order to make full use of charger
Directly fill performance, can load device in be arranged a lower initial voltage value, adjust current value to one lower second
Initial current value, control load device are stepped up the second initial current value, meanwhile, the performance of charger is monitored, to reach its volume
Fixed charging performance.
In the concrete realization, the impedance (digital regulation resistance R6 as shown in Figure 2) of load device can be adjusted, so that
The output current value for obtaining charger is the first initial current value, and gradually adjusts the impedance (number as shown in Figure 2 of the load device
Potentiometer R6) so that the first initial current value is stepped up.
In one embodiment of the invention, step 306 may include following sub-step:
Sub-step S21 based in the load device by second initial current value, increases third current difference
Value obtains the second intermediate current value；
Sub-step S22, judges whether the current output voltage values of the charger are less than preset second voltage threshold value；
If so, sub-step S23 is executed, if it is not, then executing sub-step S24；
Sub-step S23 determines that the charger reaches specified charging performance, using second intermediate current value as
Two target current values；
Sub-step S24 based in the load device by second intermediate current value, increases third current difference
Value obtains new intermediate current value, returns and executes sub-step S22.
In embodiments of the present invention, the impedance (digital regulation resistance R6 as shown in Figure 2) of adjustable load device, setting one
A preliminary charging current (i.e. the second initial current value, such as 1A) adjusts the impedance of load device then at interval of the regular hour
(digital regulation resistance R6 as shown in Figure 2) improves charging current, meanwhile, the current output voltage of detection charger.
Due to the output power of charger be it is fixed, when charging current increase when, output voltage can gradually drop
It is low.
When reaching the rated output ability of charger, output voltage has a more apparent decline.
At this point, charging current is continued growing, when output voltage is less than fixed threshold value, it is believed that have reached
The maximum output ability of the charger records current charging current Ib.
In another embodiment of the present invention, step 306 can also include following sub-step:
Sub-step S25 subtracts the second current differential on the basis of second target current value, as the second new mesh
Mark current value.
In order to preferably protect charger, avoid the fluctuation of electric current more than the range that charger can be born, of the invention real
It applies in example, it is Ic, Ic=Ib- Δ I that straight charging stream, which can be set, and wherein Δ I is a fixed current differential.
Step 307, third target current value is determined according to the first object current value and second target current value.
Step 308, it charges according to the third target current value to the battery.
It in one embodiment of the invention, can be with first object current value and second in order to preferably protect battery
The smallest current value of target current value intermediate value generally comprises following three kinds of situations as the current value finally to charge:
1, when first object current value is greater than the second target current value, third target is set by first object current value
Current value.
2, when first object current value is equal to the second target current value, by first object current value or second target
Current value is set as third target current value；
3, when first object current value is less than the second target current value, third target is set by the second target current value
Current value.
Certainly, the calculation of above-mentioned third target current value is intended only as example, in implementing the embodiments of the present invention, can
The calculation of other third target current values to be arranged according to the actual situation, such as with first object current value and the second target electricity
The average value of flow valuve as third target current value, with first object current value and the second the smallest electric current of target current value intermediate value
Value is as third target current value, etc., and the embodiments of the present invention are not limited thereto.In addition, in addition to above-mentioned third target electricity
Outside the calculation of flow valuve, those skilled in the art can also use the calculating of other third target current values according to actual needs
Mode, the embodiment of the present invention are also without restriction to this.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
Referring to Fig. 4, a kind of structural block diagram of the charging unit embodiment of mobile terminal of the invention, mobile terminal are shown
In there is battery, charging chip and load device, described device can specifically include following module:
Charger is inserted into detection module 401, accesses charger in the terminal for detecting；
First charging module 402, for by the charger by the charging chip to the battery, with preset the
One initial current value charges；
First charging current adjustment module 403, for increasing by first initial current value in the charging chip
To first object current value, so that the mobile terminal and/or the charger reach specified charging performance；
Second charging module 404, for the charger to be connected the battery by the load device, according to described
First object current value charges to the battery.
In one embodiment of the invention, which can also include following module:
Mating detection module, for judging the charger to be whether mating with the mobile terminal；If so, calling the
Four charging modules, if it is not, then calling the first charging module 402；
4th charging module, for the charger to be connected the battery by the load device, according to preset
Charging current charges to the battery.
In one embodiment of the invention, which can also include following module:
Support determining module directly is filled, for determining that the charger is supported the battery to be filled by the load device
Electricity.
In one embodiment of the invention, which can also include following module:
The straight condition of filling meets determining module, preset directly fills condition for determining currently to meet；
Wherein, the straight condition of filling includes following one or more:
The charger adjustable output voltage, charging are in constant-current phase, battery temperature within the scope of default temperature.
In one embodiment of the invention, the first charging current adjustment module 403 may include following submodule:
First electric current increase submodule, in the charging chip by based on first initial current value,
Increase by the first current differential, obtains the first intermediate current value；
First threshold value judging submodule, for judging it is preset whether the current output voltage values of the charger are less than
First voltage threshold value；If so, calling first performance to determine submodule, if it is not, the second electric current is then called to increase submodule；
First performance determines submodule, for determining that the mobile terminal and/or the charger reach specified charging
Performance, using first intermediate current value as first object current value；
Second electric current increase submodule, in the charging chip by based on first intermediate current value, increase
Add the first current differential, obtain the first new intermediate current value, returns and call the first threshold value submodule.
In another embodiment of the present invention, the first charging current adjustment module 403 can also include following son
Module:
First electric current subtracts submodule, for subtracting the second current differential on the basis of the first object current value,
As new first object current value.
Referring to Fig. 5, the structural block diagram of the charging unit embodiment of another mobile terminal of the invention is shown, it is mobile whole
There is battery, charging chip and load device, described device can specifically include following module in end:
Charger is inserted into detection module 501, accesses charger in the terminal for detecting；
First charging module 502, for by the charger by the charging chip to the battery, with preset the
One initial current value charges；
First charging current adjustment module 503, for increasing by first initial current value in the charging chip
To first object current value, so that the mobile terminal and/or the charger reach specified charging performance；
Second charging module 504, for the charger to be connected the battery by the load device, according to described
First object current value charges to the battery.
Voltage setup module 505, for initial voltage value to be arranged in the load device, so that the charger is defeated
Current value is preset second initial current value out；
Second charging current adjustment module 506, for increasing to second initial current value in the load device
Second target current value, so that the mobile terminal and/or the charger reach specified charging performance；
Target current value determining module 507, for according to the first object current value and second target current value
Determine third target current value；
Third charging module 508, for charging according to the third target current value to the battery.
In one embodiment of the invention, the second charging current adjustment module 506 may include following submodule:
Third electric current increases submodule, based in the load device by second initial current value, increases
Add third current differential, obtains the second intermediate current value；
Second threshold value judging submodule, for judging it is preset whether the current output voltage values of the charger are less than
Second voltage threshold value；If so, calling is secondary to can determine that submodule, if it is not, then the 4th electric current is called to increase submodule；
It is secondary to can determine that submodule, for determining that the mobile terminal and/or the charger reach specified charging
Performance, using second intermediate current value as the second target current value；
4th electric current increases submodule, based in the load device by second intermediate current value, increases
Add third current differential, obtain new intermediate current value, returns and call the second threshold value judging submodule.
In one embodiment of the invention, the second charging current adjustment module 506 can also include following submodule
Block:
Second electric current subtracts submodule, for subtracting the second current differential on the basis of second target current value,
As the second new target current value.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple
Place illustrates referring to the part of embodiment of the method.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
Charging method to a kind of mobile terminal provided by the present invention and a kind of charging unit of mobile terminal above, into
It has gone and has been discussed in detail, used herein a specific example illustrates the principle and implementation of the invention, the above implementation
The explanation of example is merely used to help understand method and its core concept of the invention；Meanwhile for the general technology people of this field
Member, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion this explanation
Book content should not be construed as limiting the invention.
Claims (8)
1. a kind of charging method of mobile terminal, which is characterized in that there is battery, charging chip and load device in mobile terminal,
The described method includes:
It detects and accesses charger in the terminal；
The charger is charged to the battery with preset first initial current value by the charging chip；
First initial current value is increased into first object current value in the charging chip, so that the mobile terminal
And/or the charger reaches specified charging performance；The charger is connected into the battery by the load device, to press
It charges according to the first object current value to the battery；
Initial voltage value is set in the load device, so that the output current value of the charger is preset second initial
Current value；
Second initial current value is increased into the second target current value in the load device, so that the mobile terminal
And/or the charger reaches specified charging performance；
Third target current value is determined according to the first object current value and second target current value；
It charges according to the third target current value to the battery.
2. the method according to claim 1, wherein
After described the step of detecting access charger in the terminal, the method also includes:
Judge the charger to be whether mating with the mobile terminal；
If so, by the charger by the load device connection battery, with according to preset charging current to described
Battery charges；
If it is not, then executing the described the step of charger charges to the battery by the charging chip；
The charger is passed through into the charging chip to the battery described, is filled with preset first initial current value
After the step of electricity, the method also includes:
Determine that the charger support charges to the battery by the load device；
And/or
It determines currently to meet and preset directly fills condition；
Wherein, the straight condition of filling includes following one or more:
The charger adjustable output voltage, charging are in constant-current phase, battery temperature within the scope of default temperature.
3. method according to claim 1 or 2, which is characterized in that it is described will be at the beginning of described first in the charging chip
Beginning current value increases to first object current value, so that the mobile terminal and/or the charger reach specified charging
Can the step of include:
In the charging chip by based on first initial current value, increase the first current differential, obtain first in
Between current value；
Judge whether the current output voltage values of the charger are less than preset first voltage threshold value；
If so, determining that the mobile terminal and/or the charger reach specified charging performance, with electricity among described first
Flow valuve is as first object current value；
If it is not, then in the charging chip by based on first intermediate current value, increase by the first current differential, obtain new
The first intermediate current value, return and execute whether the output voltage values for judging that the charger is current are less than preset first
The step of voltage threshold.
4. according to the method described in claim 3, it is characterized in that, described initial electric by described first in the charging chip
Flow valuve increases to first object current value, so that the output voltage values of the charger can be used for the step of directly filling further include:
The second current differential is subtracted on the basis of the first object current value, as new first object current value.
5. the method according to claim 1, wherein it is described in the load device by second initial current
Value increases to the second target current value, so that the output voltage values of the charger can be used for the step of directly filling includes:
Based in the load device by second initial current value, increase third current differential, obtains among second
Current value；
Judge whether the current output voltage values of the charger are less than preset second voltage threshold value；
If so, determining that the mobile terminal and/or the charger reach specified charging performance, with second centre electricity
Flow valuve is as the second target current value；
If it is not, based on then in the load device by second intermediate current value, increasing third current differential, obtain new
Intermediate current value, return execute judges whether the output voltage values of the charger are less than preset second voltage threshold value
Step.
6. according to the method described in claim 5, it is characterized in that, it is described in the load device by second initial current
Value increases to the second target current value, so that the output voltage values of the charger can be used for the step of directly filling, further includes:
The second current differential is subtracted on the basis of second target current value, as the second new target current value.
7. a kind of charging unit of mobile terminal, which is characterized in that there is battery, charging chip and load device in mobile terminal,
Described device includes:
Charger is inserted into detection module, accesses charger in the terminal for detecting；
First charging module, for the charger to be passed through the charging chip to the battery, initially with preset first
Current value charges；
First charging current adjustment module, for first initial current value to be increased to the first mesh in the charging chip
Current value is marked, so that the mobile terminal and/or the charger reach specified charging performance；
Second charging module, for the charger to be connected the battery by the load device, according to first mesh
Mark current value charges to the battery；
Voltage setup module, for initial voltage value to be arranged in the load device, so that the output electric current of the charger
Value is preset second initial current value；
Second charging current adjustment module, for second initial current value to be increased to the second target in the load device
Current value, so that the mobile terminal and/or the charger reach specified charging performance；
Target current value determining module, for determining third according to the first object current value and second target current value
Target current value；
Third charging module, for charging according to the third target current value to the battery.
8. device according to claim 7, which is characterized in that the first charging current adjustment module includes:
First electric current increase submodule, in the charging chip by based on first initial current value, increase
First current differential obtains the first intermediate current value；
First threshold value judging submodule, for judging whether the current output voltage values of the charger are less than preset first
Voltage threshold；If so, calling first to determine submodule, if it is not, the second electric current is then called to increase submodule；
First determines submodule, for determining that the mobile terminal and/or the charger reach specified charging performance, with institute
The first intermediate current value is stated as first object current value；
Second electric current increases submodule, in the charging chip by based on first intermediate current value, increase by the
One current differential obtains the first new intermediate current value, returns and calls the first threshold value submodule.
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| CN107171380B (en) * | 2017-05-12 | 2020-02-14 | 华霆（合肥）动力技术有限公司 | Charging method and device |
| CN109149676B (en) * | 2017-06-27 | 2021-09-24 | 深圳市中兴微电子技术有限公司 | Method and device for controlling charging current |
| CN107769320A (en) * | 2017-11-10 | 2018-03-06 | 深圳天珑无线科技有限公司 | A kind of mobile terminal and its charge control method and system |
| CN109151199A (en) * | 2018-08-27 | 2019-01-04 | 惠州Tcl移动通信有限公司 | One kind is shut off the means of communication, storage medium and mobile terminal |
| CN113113950A (en) * | 2021-04-15 | 2021-07-13 | 苏州博众机器人有限公司 | Battery charging control method, device and system |
| CN116169759A (en) * | 2021-11-25 | 2023-05-26 | 中兴通讯股份有限公司 | Charging control method, controller, charging terminal and readable storage medium |
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