CN106329019B - charging method and device - Google Patents
charging method and device Download PDFInfo
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- CN106329019B CN106329019B CN201610757694.2A CN201610757694A CN106329019B CN 106329019 B CN106329019 B CN 106329019B CN 201610757694 A CN201610757694 A CN 201610757694A CN 106329019 B CN106329019 B CN 106329019B
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- 238000007600 charging Methods 0.000 title claims abstract description 212
- 238000000034 method Methods 0.000 title claims abstract description 48
- 230000005611 electricity Effects 0.000 claims abstract description 98
- 238000007599 discharging Methods 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 5
- 230000005669 field effect Effects 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000002045 lasting effect Effects 0.000 claims 3
- 150000004706 metal oxides Chemical class 0.000 claims 2
- 238000010277 constant-current charging Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000010287 polarization Effects 0.000 description 63
- 230000004913 activation Effects 0.000 description 21
- 238000010586 diagram Methods 0.000 description 14
- 238000012544 monitoring process Methods 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 4
- 238000010280 constant potential charging Methods 0.000 description 3
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- 235000013399 edible fruits Nutrition 0.000 description 2
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Classifications
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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
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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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
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
- H02J7/00718—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current in response to charge current gradient
-
- 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
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
- H02J7/007184—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage in response to battery voltage gradient
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- H02J7/0078—
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The disclosure belongs to field of computer technology about a kind of charging method and device.The described method includes: determining whether the current voltage value of battery is equal to constant voltage threshold value；When the voltage value is equal to the constant voltage threshold value, is discharged using the first constant negative current the battery, charged using the first constant positive current to the battery, the first constant negative current is before the first constant current positive current；When the first constant current positive current makes the voltage value of the battery be again equal to the constant voltage threshold value, keeping the constant voltage threshold value not becomes the battery charging, until stopping when the electricity of the battery reaches Full Charge Capacity, the voltage value of battery is solved when being equal to constant voltage threshold value, the problem that charger directly causes the charging rate of the battery slow using constant voltage for battery charging has achieved the effect that the charging rate for improving battery.
Description
Technical field
This disclosure relates to field of computer technology, in particular to a kind of charging method and device.
Background technique
Currently, the charging stage of the battery in charger includes at least constant voltage charging phase.Constant voltage charging phase refers to
When the voltage value of battery reaches constant voltage threshold value, keeping the constant voltage threshold value not becomes battery charging, until the electricity of the battery reaches
Stop when to Full Charge Capacity.In general, the charging duration of constant voltage charging phase accounts for the 30%~40% of total charging duration of the battery,
In, total charging duration of battery refers to the electricity of battery by the charging duration of 0 sustainable growth to Full Charge Capacity.
Summary of the invention
To solve the problems in the relevant technologies, present disclose provides a kind of charging method and devices.
According to the first aspect of the embodiments of the present disclosure, a kind of charging method is provided, this method comprises:
Determine whether the current voltage value of battery is equal to constant voltage threshold value；
When voltage value is equal to constant voltage threshold value, discharged using the first constant negative current battery, it is constant using first
Positive current charges the battery, and for the first constant negative current before the first constant current positive current, the voltage value of battery is utilizing the
One constant negative current reduces when discharging, and the voltage value of battery is increased when using the first constant positive electricity current charge；
When the first constant current positive current makes the voltage value of battery be again equal to constant voltage threshold value, constant voltage threshold value is kept not become
Battery charging, until stopping when the electricity of battery reaches Full Charge Capacity.
Optionally, this method further include:
When the first constant positive current makes the voltage value of battery be again equal to constant voltage threshold value, the is reduced using the first coefficient
The constant current value of one constant positive current obtains the second constant positive current；
Compare the constant current value and constant current threshold value of the second constant positive current；
When the constant current value of the second constant positive current is more than or equal to constant current threshold value, using the second constant positive current as the first perseverance
Determine positive current, triggering, which is executed, discharges to battery using the first constant negative current, using the first constant positive current to battery into
The step of row charging；
When the constant current value of the second constant positive current is less than constant current threshold value, triggering, which executes, keeps constant voltage threshold value not become battery
Charging, until the step of electricity of battery stops when reaching Full Charge Capacity.
Optionally, this method further include:
When the first constant positive current makes the voltage value of battery be again equal to constant voltage threshold value, the is reduced using the second coefficient
The constant current value of one constant negative current obtains the second constant negative current；
The constant current value of second constant negative current is compared with zero；
It is more than or equal to constant current threshold value in the constant current value of the second constant positive current, and the constant current value of the second constant negative current is greater than
When equal to zero, using the second constant negative current as the first constant negative current, and using the second constant positive current as first it is constant just
Electric current, triggering, which is executed, discharges to battery using the first constant negative current, is filled using the first constant positive current to battery
The step of electricity；
It is more than or equal to constant current threshold value in the constant current value of the second constant positive current, and the constant current value of the second constant negative current is less than
When zero, the constant current value of the second constant negative current is adjusted to zero, obtains the constant negative current of third, and the constant positive current of third is made
For the first constant positive current, triggering, which is executed, discharges to battery using the first constant negative current, utilizes the first constant positive current
The step of charging the battery.
Optionally, this method further include:
When the first constant positive current makes the voltage value of battery be again equal to constant voltage threshold value, the is reduced using third coefficient
The duration of one constant negative current, obtains the 4th constant negative current；
Compare the duration and duration threshold value of the 4th constant negative current；
It is more than or equal to constant current threshold value in the constant current value of the second constant positive current, and the duration of the 4th constant negative current is big
When being equal to duration threshold value, using the 4th constant negative current as the first constant negative current, and using the second constant positive current as the
One constant positive current, triggering, which is executed, discharges to battery using the first constant negative current, using the first constant positive current to electricity
The step of pond is charged；
It is more than or equal to constant current threshold value in the constant current value of the second constant positive current, and the duration of the 4th constant negative current is small
When duration threshold value, the duration of the 4th constant negative current is adjusted to duration threshold value, obtains the 5th constant negative current, by
As the first constant negative current, and using the second constant positive current as the first constant positive current, triggering executes five constant negative currents
The step of being discharged using the first constant negative current battery, being charged the battery using the first constant positive current.
Optionally, this method further include:
When the first constant positive current makes the voltage value of battery be again equal to constant voltage threshold value, the is reduced using the second coefficient
The constant current value of one constant negative current, and using the duration of third coefficient the first constant negative current of diminution, it is constant to obtain the 6th
Negative current；
The constant current value of 6th constant negative current is compared with zero, and compare the duration of the 6th constant negative current with
Duration threshold value；
Be greater than in the constant current value of the second constant positive current more than or equal to the constant current value of constant current threshold value, the 6th constant negative current etc.
It is when the duration of the zero, the 6th constant negative current is more than or equal to duration threshold value, the 6th constant negative current is constant as first
Negative current, and using the second constant positive current as the first constant positive current, triggering is executed using the first constant negative current to battery
The step of discharging, being charged the battery using the first constant positive current；
It is less than in the constant current value of the second constant positive current more than or equal to the constant current value of constant current threshold value, the 6th constant negative current
Zero, the duration of the 6th constant negative current be more than or equal to duration threshold value when, by the constant current value of the 6th constant negative current adjust to
Zero, and keep the 6th constant negative current duration it is constant, obtain the 7th constant negative current, using the 7th constant negative current as
First constant negative current, and using the second constant positive current as the first constant positive current, triggering, which executes, utilizes the first constant negative electricity
The step of stream is discharged to battery, is charged the battery using the first constant positive current；
Be greater than in the constant current value of the second constant positive current more than or equal to the constant current value of constant current threshold value, the 6th constant negative current etc.
When the duration of the zero, the 6th constant negative current is less than duration threshold value, keep the constant current value of the 6th constant negative current constant, and
The duration of 6th constant negative current is adjusted to duration threshold value, the 8th constant negative current is obtained, by the 8th constant negative current
As the first constant negative current, and using the second constant positive current as the first constant positive current, triggering executes constant using first
The step of negative current discharges to battery, is charged the battery using the first constant positive current；
It is less than in the constant current value of the second constant positive current more than or equal to the constant current value of constant current threshold value, the 6th constant negative current
Zero, when the duration of the 6th constant negative current is less than duration threshold value, the constant current value of the 6th constant negative current is adjusted to zero, and
The duration of 6th constant negative current is adjusted to duration threshold value, the 9th constant negative current is obtained, by the 9th constant negative current
As the first constant negative current, and using the second constant positive current as the first constant positive current, triggering executes constant using first
The step of negative current discharges to battery, is charged the battery using the first constant positive current.
Optionally, it is discharged using the first constant negative current battery, comprising:
Pass through GPIO (General Purpose Input Output, universal input output output) the first constant negative electricity
Stream, and utilize the duration of system timer the first constant negative current of setting；
When the duration for exporting the first constant negative current reaches the duration of the first constant negative current, controlled by GPIO
MOSFET (Metallic Oxide Semiconductor Field Effecttransistor, MOS field
Effect transistor) stop the first constant negative current of output.
Optionally, this method further include:
Determine whether the current voltage value of battery is more than or equal to setting voltage value；
It is battery charging using constant setting electric current when the current voltage value of battery is more than or equal to setting voltage value,
Triggering executes the step of whether current voltage value of battery is equal to constant voltage threshold value determined.
According to the second aspect of an embodiment of the present disclosure, a kind of charging unit is provided, device includes:
First determining module, is configured to determine that whether the current voltage value of battery is equal to constant voltage threshold value；
Positive and negative constant-current charge module is configured as when the first determining module determines that voltage value is equal to constant voltage threshold value, benefit
It is discharged with the first constant negative current battery, is charged the battery using the first constant positive current, the first constant negative electricity
Stream is before the first constant current positive current, and the voltage value of battery is reduced when being discharged using the first constant negative current, and the electricity of battery
Pressure value is increased when using the first constant positive electricity current charge；
Constant-voltage charge module is configured as making battery when the first constant current positive current that positive and negative constant-current charge module obtains
When voltage value is again equal to constant voltage threshold value, constant voltage threshold value is kept not become battery charging, until the electricity of battery reaches Full Charge Capacity
When stop.
Optionally, the device further include:
The first adjustment module is configured as making the voltage value of battery be again equal to constant voltage threshold value when the first constant positive current
When, the constant current value of the first constant positive current is reduced using the first coefficient, obtains the second constant positive current；
First comparison module is configured as comparing the constant current value of the first adjustment module obtains second constant positive current and perseverance
Flow threshold value；
First trigger module is configured as in the constant current value that the comparison result of the first comparison module is the second constant positive current
When more than or equal to constant current threshold value, using the second constant positive current as the first constant positive current, triggers positive and negative constant-current charge module and hold
The step of row is discharged to battery using the first constant negative current, is charged the battery using the first constant positive current；
Second trigger module is configured as in the constant current value that the comparison result of the first comparison module is the second constant positive current
When less than constant current threshold value, triggering constant-voltage charge module, which executes, keeps constant voltage threshold value not become battery charging, until the electricity of battery
The step of stopping when reaching Full Charge Capacity.
Optionally, the device further include:
Second adjustment module is configured as making the voltage value of battery be again equal to constant voltage threshold value when the first constant positive current
When, the constant current value of the first constant negative current is reduced using the second coefficient, obtains the second constant negative current；
Second comparison module, be configured as the second constant negative current for obtaining second adjustment module constant current value and zero into
Row compares；
Third trigger module is configured as in the constant current value that the comparison result of the second comparison module is the second constant positive current
More than or equal to constant current threshold value, and when the constant current value of the second constant negative current is more than or equal to zero, using the second constant negative current as the
One constant negative current, and using the second constant positive current as the first constant positive current, it triggers positive and negative constant-current charge module and executes benefit
The step of being discharged with the first constant negative current battery, being charged the battery using the first constant positive current；
4th trigger module is configured as in the constant current value that the comparison result of the second comparison module is the second constant positive current
More than or equal to constant current threshold value, and when the constant current value of the second constant negative current is less than zero, by the constant current value tune of the second constant negative current
It is whole to zero, obtain the constant negative current of third, and using the constant positive current of third as the first constant positive current, trigger positive and negative constant current and fill
Electric module execution discharges to battery using the first constant negative current, is charged the battery using the first constant positive current
Step.
Optionally, the device further include:
Third adjusts module, is configured as making the voltage value of battery be again equal to constant voltage threshold value when the first constant positive current
When, the duration of the first constant negative current is reduced using third coefficient, obtains the 4th constant negative current；
Third comparison module, be configured as comparing the duration of the 4th constant negative current that third adjustment module obtains with
Duration threshold value；
5th trigger module is configured as in the constant current value that the comparison result of third comparison module is the second constant positive current
More than or equal to constant current threshold value, and when the duration of the 4th constant negative current is more than or equal to duration threshold value, by the 4th constant negative electricity
Stream is used as the first constant negative current, and using the second constant positive current as the first constant positive current, triggers positive and negative constant-current charge mould
Block execution discharges to battery using the first constant negative current, the step charged the battery using the first constant positive current
Suddenly；
6th trigger module is configured as in the constant current value that the comparison result of third comparison module is the second constant positive current
More than or equal to constant current threshold value, and when the duration of the 4th constant negative current is less than duration threshold value, by the 4th constant negative current
Duration is adjusted to duration threshold value, obtains the 5th constant negative current, using the 5th constant negative current as the first constant negative current,
And using the second constant positive current as the first constant positive current, triggers positive and negative constant-current charge module execution and utilize the first constant negative electricity
The step of stream is discharged to battery, is charged the battery using the first constant positive current.
Optionally, the device further include:
4th adjustment module, is configured as making the voltage value of battery be again equal to constant voltage threshold value when the first constant positive current
When, the constant current value of the first constant negative current is reduced using the second coefficient, and reduce the first constant negative current using third coefficient
Duration obtains the 6th constant negative current；
4th comparison module, be configured as the constant current value of the 6th constant negative current for obtaining the 4th adjustment module and zero into
Row compares, and compares the duration and duration threshold value of the 6th constant negative current；
7th trigger module is configured as in the constant current value that the comparison result of the 4th comparison module is the second constant positive current
It is big more than or equal to the duration that the constant current value of constant current threshold value, the 6th constant negative current is more than or equal to the zero, the 6th constant negative current
When being equal to duration threshold value, using the 6th constant negative current as the first constant negative current, and using the second constant positive current as the
One constant positive current is triggered the execution of positive and negative constant-current charge module and is discharged using the first constant negative current battery, utilizes the
The step of one constant positive current charges the battery；
8th trigger module is configured as in the constant current value that the comparison result of the 4th comparison module is the second constant positive current
More than or equal to constant current threshold value, the 6th constant negative current constant current value less than the zero, the 6th constant negative current duration be greater than etc.
When duration threshold value, the constant current value of the 6th constant negative current is adjusted to zero, and keeps the duration of the 6th constant negative current
It is constant, the 7th constant negative current is obtained, using the 7th constant negative current as the first constant negative current, and by the second constant positive current
As the first constant positive current, triggers positive and negative constant-current charge module execution and is discharged using the first constant negative current battery,
The step of being charged the battery using the first constant positive current；
9th trigger module is configured as in the constant current value that the comparison result of the 4th comparison module is the second constant positive current
It is small more than or equal to the duration that the constant current value of constant current threshold value, the 6th constant negative current is more than or equal to the zero, the 6th constant negative current
It when duration threshold value, keeps the constant current value of the 6th constant negative current constant, and the duration of the 6th constant negative current is adjusted
To duration threshold value, the 8th constant negative current is obtained, using the 8th constant negative current as the first constant negative current, and it is constant by second
Positive current triggers positive and negative constant-current charge module and executes using the first constant negative current to battery progress as the first constant positive current
Electric discharge, the step of being charged the battery using the first constant positive current；
Tenth trigger module is configured as in the constant current value that the comparison result of the 4th comparison module is the second constant positive current
When constant current value more than or equal to constant current threshold value, the 6th constant negative current is less than less than the duration of the zero, the 6th constant negative current
When long threshold value, the constant current value of the 6th constant negative current is adjusted to zero, and by the duration of the 6th constant negative current adjust to
Duration threshold value obtains the 9th constant negative current, using the 9th constant negative current as the first constant negative current, and by second it is constant just
Electric current is triggered positive and negative constant-current charge module execution and is put using the first constant negative current to battery as the first constant positive current
Electricity, the step of being charged the battery using the first constant positive current.
Optionally, positive and negative constant-current charge module, comprising:
Timing submodule is configured as exporting the first constant negative current by GPIO, and utilizes system timer setting the
The duration of one constant negative current；
Control submodule is configured as reaching first that timing submodule obtains in the duration for exporting the first constant negative current
When the duration of constant negative current, MOSFET is controlled by GPIO and stops the first constant negative current of output.
Optionally, the device further include:
Second determining module, is configured to determine that whether the current voltage value of battery is more than or equal to setting voltage value；
Constant-current charge module is configured as determining that the current voltage value of battery is more than or equal to setting when the second determining module
It is battery charging using constant setting electric current when voltage value, triggering, which executes, determines whether the current voltage value of battery is equal to perseverance
The step of pressing threshold value.
According to the third aspect of an embodiment of the present disclosure, a kind of charging unit is provided, which includes:
Processor；
Memory for storage processor executable instruction；
Wherein, processor is configured as:
Determine whether the current voltage value of battery is equal to constant voltage threshold value；
When voltage value is equal to constant voltage threshold value, discharged using the first constant negative current battery, it is constant using first
Positive current charges the battery, and for the first constant negative current before the first constant current positive current, the voltage value of battery is utilizing the
One constant negative current reduces when discharging, and the voltage value of battery is increased when using the first constant positive electricity current charge；
When the first constant current positive current makes the voltage value of battery be again equal to constant voltage threshold value, constant voltage threshold value is kept not become
Battery charging, until stopping when the electricity of battery reaches Full Charge Capacity.
The technical scheme provided by this disclosed embodiment can include the following benefits:
When being equal to constant voltage threshold value by the voltage value in battery, first with the first constant negative current to battery discharge, then benefit
It is charged with the first constant positive current to battery, is increased afterwards at this point, the voltage of the battery first reduces, it is inferior again in the voltage of the battery
When constant voltage threshold value, the constant voltage of charger utilizing is battery charging, since the constant positive current of charger utilizing is battery
The speed of charging is faster than using the speed that constant voltage is battery charging, and therefore, the voltage value for solving battery is being equal to perseverance
When pressing threshold value, the problem that charger directly causes the charging rate of the battery slow using constant voltage for battery charging reaches
The effect for improving the charging rate of battery is arrived.
In addition, ohm can occur for the charging battery core of the battery when being that battery charges due to the constant electric current of charger utilizing
Polarization, concentration polarization phenomenon and activation polarization phenomenon, and the charging battery core that the first constant negative current can eliminate battery generates
Ohmic polarization phenomenon, concentration polarization phenomenon and activation polarization phenomenon, therefore, when the constant electric current of charger utilizing be battery
Charging, when so that the voltage value of the battery being equal to constant voltage threshold value, by being put using the first constant negative current to the battery
Electricity eliminates the concentration polarization phenomenon and activation polarization phenomenon of the charging battery core of battery, extends the service life of battery.
In addition, ohmic polarization phenomenon, concentration occur for the charging battery core of battery due to successively decreasing with the first constant positive current
Polarization phenomena and activation polarization phenomenon slow, at this point, that constant current value is smaller or duration is shorter is first constant
Negative current can eliminate ohmic polarization phenomenon, concentration polarization phenomenon and activation polarization phenomenon, and therefore, charger passes through diminution
The constant current value of first constant negative current, alternatively, the duration of the first constant negative current is reduced, alternatively, it is permanent to reduce first simultaneously
The constant current value and duration for determining negative current can not only eliminate ohmic polarization phenomenon, concentration that the charging battery core of battery occurs
Polarization phenomena and activation polarization phenomenon will not also release excessive electricity to battery, accelerate the charging rate of battery.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
It is open.
Detailed description of the invention
The drawings herein are incorporated into the specification and constitutes a part of present disclosure specification, shows and meets the disclosure
Embodiment, and together with specification for explaining the principles of this disclosure.
Fig. 1 is a kind of flow chart of charging method shown according to an exemplary embodiment.
Fig. 2 is the flow chart of the first charging method shown according to an exemplary embodiment.
Fig. 3 is the variation schematic diagram of a kind of current value and voltage value shown according to an exemplary embodiment.
Fig. 4 is the flow chart of second of charging method shown according to an exemplary embodiment.
Fig. 5 is the variation schematic diagram of a kind of current value and voltage value shown according to an exemplary embodiment.
Fig. 6 is the flow chart of the third charging method shown according to an exemplary embodiment.
Fig. 7 is the variation schematic diagram of a kind of current value and voltage value shown according to an exemplary embodiment.
Fig. 8 is the flow chart of the 4th kind of charging method shown according to an exemplary embodiment.
Fig. 9 is the variation schematic diagram of a kind of current value and voltage value shown according to an exemplary embodiment.
Figure 10 is a kind of block diagram of charging unit shown according to an exemplary embodiment.
Figure 11 is a kind of block diagram of charging unit shown according to an exemplary embodiment.
Figure 12 is a kind of block diagram of device for charging shown according to an exemplary embodiment.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
Fig. 1 is a kind of flow chart of charging method shown according to an exemplary embodiment, which is applied to fill
In electric appliance, as shown in Figure 1, the charging method includes the following steps.
In a step 101, determine whether the current voltage value of battery is equal to constant voltage threshold value.
In a step 102, it when voltage value is equal to constant voltage threshold value, is discharged using the first constant negative current battery,
It is charged the battery using the first constant positive current, wherein the first constant negative current is before the first constant positive current.
The voltage value of battery is reduced when being discharged using the first constant negative current, and the voltage value of battery is constant using first
Increase when positive electricity current charge.
In step 103, when the first constant positive current makes the voltage value of battery be again equal to constant voltage threshold value, keep permanent
Pressure threshold value does not become battery charging, until stopping when the electricity of battery reaches Full Charge Capacity.
In conclusion the charging method that the disclosure provides, when being equal to constant voltage threshold value by the voltage value in battery, first with
First constant negative current recycles the first constant positive current to charge battery, at this point, the voltage of the battery first subtracts battery discharge
Increase after small, when the voltage of the battery is again equal to constant voltage threshold value, the constant voltage of charger utilizing is battery charging, due to
The constant positive current of charger utilizing is that the speed of battery charging is faster than using the speed that constant voltage is battery charging, because
This, solves the voltage value of battery when being equal to constant voltage threshold value, and charger is directly that battery charging causes using constant voltage
The slow problem of the charging rate of the battery has achieved the effect that the charging rate for improving battery.
In the first implementation, charger fills electrical resistance method by adjusting the constant current value of the first constant positive current
The ohmic polarization phenomenon of battery core, please refer to Fig. 2 shows the first charging method flow chart, the charging method be applied to fill
In electric appliance, as shown in Fig. 2, the charging method includes the following steps.
In step 201, determine whether the current voltage value of battery is more than or equal to setting voltage value.
When charger starts to charge for battery, the current voltage value of the battery can determine whether first.If the voltage value of battery is low
In the lesser preset threshold of numerical value, such as: 2.1V (volt), at this point, the electricity of battery is usually lower, charger can utilize constant
Pre-charge current is battery charging, so that the voltage value of battery is gradually increasing.Wherein, pre-charge current is usually smaller, such as:
100mA (milliampere), the present embodiment limit not to preset threshold and with the size of charging current.
Charger utilizing pre-charge current is after battery charges, and charger is also it needs to be determined that whether the voltage value of the battery is big
Voltage value is set in being equal to.When the voltage value of battery is more than or equal to setting voltage value, charger executes step 202；In battery
Voltage value be less than setting voltage value when, charger using pre-charge current continue as battery charge, until charger detects
The voltage value of the battery executes step 202 when being more than or equal to setting voltage value.
Wherein, charger determine the current voltage value of battery whether be more than or equal to setting voltage value implementation can wrap
Include but be not limited to: in the first implementation, charger obtains the current voltage value of battery every preset duration, and by the electricity
Pressure value is compared with setting voltage value；In the second implementation, charger is arranged for monitoring the current voltage of battery
The monitoring process of value, when the voltage value of battery is more than or equal to setting voltage value, the monitoring process is automatically by the voltage value of battery
Event more than or equal to setting voltage value is notified to charger.
In step 202, when the current voltage value of battery is more than or equal to setting voltage value, constant setting electric current is utilized
For battery charging.
When being that battery charges using constant setting electric current, the voltage value of the battery continues to rise charger.
In step 203, determine whether the current voltage value of battery is equal to constant voltage threshold value.
Wherein, constant voltage threshold value is the maximum charging voltage value of battery.Charger is being battery using constant setting electric current
When charging, determine whether the current voltage value of battery is equal to constant voltage threshold value.When the current voltage value of battery is equal to constant voltage threshold value,
Charger executes step 204；When the current voltage value of battery is less than constant voltage threshold value, the constant setting electric current of charger utilizing is
Battery charging executes step 204 when the voltage value of the battery is equal to constant voltage threshold value.
Wherein, charger determines whether the current voltage value of battery is equal to the implementation of constant voltage threshold value and may include but not
Be limited to: in the first implementation, charger obtains the current voltage value of battery every preset duration, and by the voltage value with
Constant voltage threshold value is compared；In the second implementation, the monitoring for monitoring the current voltage value of battery is arranged in charger
Process, when the voltage value of battery is equal to constant voltage threshold value, which is equal to constant voltage threshold value for the voltage value of battery automatically
Event notifies to give charger voltage value.
In step 204, it when voltage value is equal to constant voltage threshold value, is discharged using the first constant negative current battery,
It is charged the battery using the first constant positive current, the first constant negative current is before the first constant positive current.
Wherein, the voltage value of battery is reduced when being discharged using the first constant negative current, is utilizing the first constant positive current
Increase when charging.
Wherein, the first constant negative current, which can be, is generated by the microprocessor in charger, is defeated by the GPIO in charger
Out, and the duration of the first constant negative current is by the system timer setting in the charger, permanent in output first
When determining the duration of negative current and reaching the duration, charger the switch of MOSFET controlled by GPIO come stop exporting this first
Constant negative current.
When the voltage value of charger is equal to constant voltage threshold value, which is that the voltage value of constant voltage threshold value is electricity
Pond charging, then the charging current of the battery can be gradually reduced.Since the constant voltage value of charger utilizing is filling for battery charging
The electric speed electric current more constant than charger utilizing is that the charging rate of battery charging is slow, and therefore, charger utilizing numerical value is constant pressure
The voltage value of threshold value is the time longer charging rate that will affect the battery of battery charging.
In the present embodiment, when the voltage value of battery is equal to constant voltage threshold value, it is constant pressure that charger does not utilize numerical value immediately
The voltage value of threshold value is battery charging, but is battery discharge first with the first constant negative current, recycles the first constant positive electricity
Stream is that battery charges, which be gradually increased the voltage value of battery, in this way, charger utilizing stage
First constant positive current is that the battery charges, and accelerates the charging rate of battery.
In step 205, when the first constant positive current makes the voltage value of battery be again equal to constant voltage threshold value, is utilized
One coefficient reduces the constant current value of the first constant positive current, obtains the second constant positive current.
Since the electricity of battery is bigger, the biggish constant charging current of charger utilizing is the electricity caused by battery charges
The speed that ohmic polarization phenomenon occurs for the charging battery core in pond is faster, and therefore, as the electricity of battery is gradually increased, charger needs
Prevent the charging battery core of the battery from ohmic polarization phenomenon occurs by reducing the constant current value of the first constant positive current.
Wherein, the first coefficient can be any number greater than 0 and less than 1, such as: 0.4, at this point, charger is utilizing
When first coefficient reduces the constant current value of the first constant positive current, by the constant current value of the first constant positive current multiplied by first coefficient,
Obtain the second constant positive current.
First coefficient can also be the positive number arbitrarily less than the constant current value of the first constant positive current, such as: 100mA, this
When, charger is when reducing the constant current value of the first constant positive current using the first coefficient, by the constant current value of the first constant positive current
First coefficient is subtracted, obtains the second constant positive current, constant current value refers to the first constant positive current or the first constant negative current
The absolute value of constant electric current.
In step 206, compare the constant current value and constant current threshold value of the second constant positive current.
Constant current threshold value is the lesser current value of numerical value of user setting, such as: 100mA, when the perseverance of the second constant positive current
When flow valuve is more than or equal to constant current threshold value, charger executes step 207；When the constant current value of the second constant positive current is less than constant current threshold value
When, illustrate that the electricity of battery has leveled off to Full Charge Capacity, charger executes step 208.
In step 207, when the constant current value of the second constant positive current is more than or equal to constant current threshold value, by the second constant positive electricity
Stream is used as the first constant positive current, executes step 204 again.
At this point, the first constant current when the constant current value of the first constant current reaches constant voltage threshold value than last voltage value
Constant current value is small.
In a step 208, when the constant current value of the second constant positive current is less than constant current threshold value, constant voltage threshold value is kept not become
Battery charging, until stopping when the electricity of battery reaches Full Charge Capacity.
Referring to FIG. 3, it illustrates in charger from during to start to charge to end for battery be that battery charges, electricity
The charging current in pond and the variation schematic diagram of charging voltage value, when charger starts to charge for battery, the voltage value of the battery is
1.9V is less than preset threshold 2.1V, and the pre-charge current of charger utilizing 100mA is battery charging, at this point, the electricity of the battery
Pressure value is gradually increasing.When the voltage value of battery rises to setting voltage value 2.8V, the setting electric current of charger utilizing 1000mA
It charges for the battery, at this point, the voltage value of the battery continues to rise.When the voltage value of battery rises to constant voltage threshold value 4.4V,
It is the battery discharge using the first constant negative current that constant current value is 200mA, it is then constant using first that constant current value is 900mA
Positive current is battery charging, is increased afterwards at this point, the voltage value of the battery first reduces.When the first constant positive current makes the battery
Voltage value when rising to 4.4V again, by the constant current value of the first constant positive current multiplied by the first coefficient 0.9, obtaining constant current value is
The second constant current of 810mA, 810mA are greater than constant current threshold value 100mA, using second constant current as the first constant current,
Battery charging is continued as, above-mentioned steps are recycled, until the constant current value of the second constant current stops when being less than constant current threshold value, this
When, the voltage that charger utilizing numerical value is constant voltage threshold value 4.4V is battery charging, and the charging current of the battery is gradually reduced.When filling
When electric current is reduced to current threshold 100mA, charger stops being that the battery charges.
In conclusion the charging method that the disclosure provides, when being equal to constant voltage threshold value by the voltage value in battery, first with
First constant negative current recycles the first constant positive current to charge battery, at this point, the voltage of the battery first subtracts battery discharge
Increase after small, when the voltage of the battery is again equal to constant voltage threshold value, the constant voltage of charger utilizing is battery charging, due to
The constant positive current of charger utilizing is that the speed of battery charging is faster than using the speed that constant voltage is battery charging, because
This, solves the voltage value of battery when being equal to constant voltage threshold value, and charger is directly that battery charging causes using constant voltage
The slow problem of the charging rate of the battery has achieved the effect that the charging rate for improving battery.
In addition, ohm can occur for the charging battery core of the battery when being that battery charges due to the constant electric current of charger utilizing
Polarization, concentration polarization phenomenon and activation polarization phenomenon, and the charging battery core that the first constant negative current can eliminate battery generates
Ohmic polarization phenomenon, concentration polarization phenomenon and activation polarization phenomenon, therefore, when the constant electric current of charger utilizing be battery
Charging, when so that the voltage value of the battery being equal to constant voltage threshold value, by being put using the first constant negative current to the battery
Electricity eliminates the concentration polarization phenomenon and activation polarization phenomenon of the charging battery core of battery, extends the service life of battery.
In the second implementation, charger can accelerate battery by adjusting the constant current value of the first constant negative current
Charging rate.Please refer to the flow chart of second of charging method shown in Fig. 4, after step 204, this method further include as
Lower step.
In step 209, when the first constant positive current makes the voltage value of battery be again equal to constant voltage threshold value, is utilized
Two coefficients reduce the constant current value of the first constant negative current, obtain the second constant negative current.
Due to successively decreasing with the first constant positive current, ohmic polarization phenomenon, concentration polarization occur for the charging battery core of battery
Phenomenon and activation polarization phenomenon slow, at this point, the constant negative current of constant current value lesser first can eliminate ohm
Polarization phenomena, concentration polarization phenomenon and activation polarization phenomenon, therefore, the constant current that charger passes through the first constant negative current of diminution
Value can not only eliminate ohmic polarization phenomenon, concentration polarization phenomenon and activation polarization phenomenon that the charging battery core of battery occurs,
Excessive electricity will not be also released to battery, accelerate the charging rate of battery.
Wherein, the second coefficient can be any number greater than 0 and less than 1, such as: 0.4, at this point, charger is utilizing
When second coefficient reduces the constant current value of the first constant negative current, by the constant current value of the first constant negative current multiplied by second coefficient,
Obtain the second constant negative current.
Second coefficient can also be the positive number arbitrarily less than the constant current value of the first constant negative current, such as: 50mA, this
When, charger is when reducing the constant current value of the first constant negative current using the second coefficient, by the constant current value of the first constant negative current
Second coefficient is subtracted, the second constant negative current is obtained.
In step 210, the constant current value of the second constant negative current is compared with zero.
Step 209 and step 210 can execute before step 205 and step 206, can also be in step 205 and step
It executes, can also be performed simultaneously with step 205 and step 206, this embodiment is not limited after 206.
It is more than or equal to constant current threshold value in the constant current value that the comparison result that step 206 obtains is the second constant positive current, and walks
When rapid 210 obtained comparison results are that the constant current value of the second constant negative current is more than or equal to zero, step 211 is executed；In step 206
Obtained comparison result is that the constant current value of the second constant positive current is more than or equal to constant current threshold value, and the comparison knot that step 210 obtains
Fruit be the second constant negative current constant current value less than zero when, execute step 212.
In addition, when the constant current value that the comparison result that step 206 obtains is the second constant positive current is less than constant current threshold value,
In a kind of implementation, no matter whether the constant current value of the second constant negative current is equal to zero, and charger all keeps constant voltage threshold value constant
For battery charging, the stopping when electricity of battery reaches Full Charge Capacity；In another implementation, it is obtained in step 210
It is constant negative using the second constant negative current as first when comparison result is that the constant current value of the second constant negative current is more than or equal to zero
Electric current, the charger utilizing first constant negative current are battery discharge, are the first constant positive electricity of constant current threshold value using constant current value
Stream is that battery charges, and when the constant current value that the comparison result that step 210 obtains is the second constant negative current is less than zero, charger is protected
Holding constant voltage threshold value not becomes battery charging, until stopping when the electricity of battery reaches Full Charge Capacity, that is, execute step 208.
As the alternative steps of step 207, in step 211, when the constant current value of the second constant positive current is more than or equal to
Constant current threshold value, and when the constant current value of the second constant negative current is more than or equal to zero, it is constant negative using the second constant negative current as first
Electric current, and using the second constant positive current as the first constant positive current, step 204 is executed again.
At this point, the first constant negative electricity when the constant current value of the first constant negative current reaches constant voltage threshold value than last voltage value
The constant current value of stream is small.
As the alternative steps of step 207, in the step 212, it is more than or equal in the constant current value of the second constant positive current
Constant current threshold value, and when the constant current value of the second constant negative current is less than zero, the constant current value of the second constant negative current is adjusted to zero, is obtained
To the constant negative current of third, and using the constant positive current of third as the first constant positive current, step 204 is executed again.
Referring to FIG. 5, it illustrates chargers from starting to charge to for battery during end is battery charging, battery
Charging current and charging voltage value variation schematic diagram, charger start for battery charging when, the voltage value of the battery is
1.9V, be less than preset threshold 2.1V, charger utilizing pre-charge current be the battery charge, at this point, the voltage value of the battery by
Gradually rise.When the voltage value of battery rises to setting voltage value 2.8V, the setting electric current of charger utilizing 1000mA is the electricity
Pond charging, at this point, the voltage value of the battery continues to rise.When the voltage value of battery rises to constant voltage threshold value 4.4V, perseverance is utilized
The first constant negative current that flow valuve is 200mA is battery charging, then, the first constant positive electricity for being 900mA using constant current value
Stream is that the battery charges.Increase afterwards at this point, the voltage value of the battery first reduces.When the first constant positive current makes the electricity of the battery
When pressure value rises to 4.4V again, the constant current value of the first constant negative current is subtracted into 50mA, obtains second that constant current value is 150mA
Constant negative current, 150mA is greater than zero, using the second constant negative current as the first constant negative current；By the first constant positive current
Constant current value obtains the second constant positive current that constant current value is 810mA multiplied by the second coefficient 0.9, and 810mA is greater than constant current threshold value
100mA continues as battery charging, recycles above-mentioned steps using the second constant positive current as the first constant positive current, until the
The constant current value of two constant current positive currents stops when being less than constant current threshold value, at this point, charger utilizing numerical value is the electricity of constant voltage threshold value 4.4V
Pressure value is battery charging, and the charging current of the battery is gradually reduced.When charging current is reduced to current threshold 100mA, charging
Device stops being that the battery charges.
In the third implementation, charger can accelerate electricity by adjusting the duration of the first constant negative current
The charging rate in pond.The flow chart of the third charging method shown in Fig. 6 is please referred to, after step 204, this method further includes
Following steps.
In step 213, when the first constant positive current makes the voltage value of battery be again equal to constant voltage threshold value, is utilized
Three coefficients reduce the duration of the first constant negative current, obtain the 4th constant negative current.
Due to successively decreasing with the first constant positive current, ohmic polarization phenomenon, concentration polarization occur for the charging battery core of battery
Phenomenon and activation polarization phenomenon slow, at this point, shorter the first constant negative current of duration can eliminate Europe
Nurse polarization phenomena, concentration polarization phenomenon and activation polarization phenomenon, therefore, charger is by reducing holding for the first constant negative current
Continuous duration can not only eliminate ohmic polarization phenomenon, concentration polarization phenomenon and activation polarization that the charging battery core of battery occurs
Phenomenon will not also release excessive electricity to battery, accelerate the charging rate of battery.
Wherein, third coefficient can be any number greater than 0 and less than 1, such as: 0.4, at this point, charger is utilizing
When third coefficient reduces the duration of the first constant negative current, by the duration of the first constant negative current multiplied by the third system
Number, obtains the 4th constant negative current.
Third coefficient can also be the positive number arbitrarily less than the duration of the first constant negative current, such as: 1s, this
When, charger is when reducing the duration of the first constant negative current using third coefficient, by continuing for the first constant negative current
Duration subtracts the third coefficient, obtains the 4th constant negative current.
In step 214, compare the duration and duration threshold value of the 4th constant negative current.
Step 213 and step 214 can execute before step 205 and step 206, can also be in step 205 and step
It executes, can also be performed simultaneously with step 205 and step 206, this embodiment is not limited after 206.
When the constant current value that the comparison result that step 206 obtains is the second constant positive current is more than or equal to constant current threshold value, and step
When rapid 214 obtained comparison results are that the duration of the 4th constant negative current is more than or equal to duration threshold value, step 215 is executed；
When the constant current value that the comparison result that step 206 obtains is the second constant positive current is more than or equal to constant current threshold value, and step 214 is obtained
Comparison result be the 4th constant negative current duration be less than duration threshold value when, execute step 216.
In addition, when the constant current value that the comparison result that step 206 obtains is the second constant positive current is less than constant current threshold value,
In a kind of implementation, no matter whether the duration of the second constant negative current reaches duration threshold value, and charger all keeps constant pressure
Threshold value does not become battery charging, until stopping when the electricity of battery reaches Full Charge Capacity；In another implementation, work as step
It is constant negative by the 4th when 214 obtained comparison results are that the duration of the 4th constant negative current is more than or equal to duration threshold value
For electric current as the first constant negative current, the charger utilizing first constant negative current is battery discharge, is constant current using constant current value
The constant positive current of the first of threshold value is battery charging, when the comparison result that step 214 obtains is continuing for the 4th constant negative current
When duration is less than duration threshold value, charger keeps constant voltage threshold value not become battery charging, until the electricity of battery reaches Full Charge Capacity
When stop, that is, execute step 208.
As the alternative steps of step 207, in step 215, it is more than or equal in the constant current value of the second constant positive current
Constant current threshold value, and when the duration of the 4th constant negative current is more than or equal to duration threshold value, using the 4th constant negative current as the
One constant negative current, and using the second constant positive current as the first constant positive current, step 204 is executed again.
As the alternative steps of step 207, in the step 216, it is more than or equal in the constant current value of the second constant positive current
Constant current threshold value, and the duration of the 4th constant negative current be less than duration threshold value when, by the duration of the 4th constant negative current
It adjusts to duration threshold value, obtains the 5th constant negative current, using the 5th constant negative current as the first constant negative current, and by second
Constant positive current executes step 204 as the first constant positive current again.
Referring to FIG. 7, it illustrates chargers from starting to charge to for battery during end is battery charging, battery
Charging current and charging voltage value variation schematic diagram, charger start for battery charging when, the voltage value of the battery is
1.9V, be less than preset threshold 2.1V, charger utilizing pre-charge current be the battery charge, at this point, the voltage value of the battery by
Gradually rise.When the voltage value of battery rises to setting voltage value 2.8V, the setting electric current of charger utilizing 1000mA is the electricity
Pond charging, at this point, the voltage value of the battery continues to rise.When the voltage value of battery rises to constant voltage threshold value 4.4V, using holding
The first constant negative current of a length of 5s is battery charging, then, the first constant positive current for being 900mA using constant current value when continuous
For battery charging.Increase afterwards at this point, the voltage value of the battery first reduces.When the first constant positive current makes the voltage of the battery
When value rises to 4.4V again, the duration of the first constant negative current is subtracted into 1s, obtains the 4th perseverance that duration is 4s
Determine negative current, 4s is greater than duration threshold value 0.5s, using the 4th constant negative current as the first constant negative current；By the first constant positive electricity
The constant current value of stream obtains the second constant positive current that constant current value is 810mA multiplied by the second coefficient 0.9, and 810mA is greater than constant current threshold value
100mA continues as battery charging, recycles above-mentioned steps using the second constant positive current as the first constant positive current, until the
The constant current value of two constant current positive currents stops when being less than constant current threshold value, at this point, charger utilizing numerical value is the electricity of constant voltage threshold value 4.4V
Pressure value is battery charging, and the charging current of the battery is gradually reduced.When charging current is reduced to current threshold 100mA, charging
Device stops being that the battery charges.
In the 4th kind of implementation, charger can pass through the duration and perseverance of the first constant negative current of adjustment simultaneously
Flow valuve accelerates the charging rate of battery.The flow chart of the 4th kind of charging method shown in Fig. 8 is please referred to, after step 204,
This method further includes following steps.
In step 217, when the first constant positive current makes the voltage value of battery be again equal to constant voltage threshold value, is utilized
Two coefficients reduce the constant current value of the first constant negative current, and the duration of the first constant negative current is reduced using third coefficient,
Obtain the 6th constant negative current.
Wherein, the description in relation to the second coefficient is detailed in Fig. 4 the embodiment described, and the description in relation to third coefficient is detailed in Fig. 6
The embodiment described, therefore not to repeat here.
In step 218, the constant current value of the 6th constant negative current is compared with zero, and compares the 6th constant negative current
Duration and duration threshold value.
Wherein, step 217 and step 218 can execute before step 205 and step 206, can also in step 205 and
It is executed after step 206；It can also be performed simultaneously with step 205 and step 206, this embodiment is not limited.
When the constant current value that the comparison result that step 206 obtains is the second constant positive current is more than or equal to constant current threshold value, and step
Rapid 218 obtained comparison results are that the constant current value of the 6th constant negative current is more than or equal to zero, and the 6th constant negative current continues
When duration is more than or equal to duration threshold value, step 219 is executed；When the comparison result that step 206 obtains is the second constant positive current
Constant current value is more than or equal to constant current threshold value, and the obtained comparison result of step 218 is the constant current value of the 6th constant negative current less than zero,
And the 6th constant negative current duration be more than or equal to duration threshold value when, execute step 220；When the comparison that step 206 obtains
As a result it is more than or equal to constant current threshold value for the constant current value of the second constant positive current, and the comparison result that step 218 obtains is the 6th permanent
Determine negative current constant current value be more than or equal to zero, and the duration of the 6th constant negative current be less than duration threshold value when, execute step
221；When the constant current value that the comparison result that step 206 obtains is the second constant positive current is more than or equal to constant current threshold value, and step 218
Obtained comparison result is the constant current value of the 6th constant negative current less than zero, and when the duration of the 6th constant negative current is less than
When long threshold value, step 222 is executed.
In addition, when the constant current value that the comparison result that step 206 obtains is the second constant positive current is less than constant current threshold value,
In a kind of implementation, no matter whether the constant current value of the 6th constant negative current reaches zero, and no matter the 6th constant negative current is held
Whether continuous duration reaches duration threshold value, and charger, which all keeps constant voltage threshold value not, becomes battery charging, until the electricity of battery reaches
Stop when Full Charge Capacity, that is, execute step 208.
In another implementation, when the constant current value that the comparison result that step 218 obtains is the 6th constant negative current is big
In being equal to zero, and when the duration of the 6th constant negative current is more than or equal to duration threshold value, charger is by the 6th constant negative electricity
Stream is used as the first constant negative current, is battery discharge using the first constant negative current, utilizes that constant current value is constant current threshold value
One constant positive current is battery charging；When the comparison result that step 218 obtains be the 6th constant negative current constant current value less than zero,
And the 6th duration of constant negative current when being more than or equal to duration threshold value, charger is by the constant current value of the 6th constant negative current
It adjusts to zero, and using the 6th constant negative current adjusted as the first constant negative current, is using the first constant negative current
Battery discharge is that battery charges using the first constant positive current that constant current value is constant current threshold value；When the comparison knot that step 218 obtains
Fruit is that the constant current value of the 6th constant negative current is more than or equal to zero, and the duration of the 6th constant negative current is less than duration threshold value
When, charger adjusts the duration of the 6th constant negative current to duration threshold value, and by the 6th constant negative electricity adjusted
Stream is used as the first constant negative current, is battery discharge using the first constant negative current, utilizes that constant current value is constant current threshold value
One constant positive current is battery charging；When the comparison result that step 218 obtains be the 6th constant negative current constant current value less than zero,
And the 6th constant negative current duration be less than duration threshold value when, charger keep constant voltage threshold value do not become battery charging, directly
Stopping when reaching Full Charge Capacity to the electricity of battery.
As the alternative steps of step 207, in step 219, it is more than or equal in the constant current value of the second constant positive current
Constant current threshold value, the 6th constant negative current constant current value be more than or equal to the duration of the zero, the 6th constant negative current when being more than or equal to
When long threshold value, using the 6th constant negative current as the first constant negative current, and using the second constant positive current as first it is constant just
Electric current executes step 204 again.
As the alternative steps of step 207, in a step 220, it is more than or equal in the constant current value of the second constant positive current
Constant current threshold value, the 6th constant negative current constant current value less than the zero, the 6th constant negative current duration be more than or equal to duration threshold
When value, the constant current value of the 6th constant negative current is adjusted to zero, and keeps the duration of the 6th constant negative current constant, is obtained
7th constant negative current, using the 7th constant negative current as the first constant negative current, and using the second constant positive current as first
Constant positive current executes step 204 again.
As the alternative steps of step 207, in step 221, it is more than or equal in the constant current value of the second constant positive current
Constant current threshold value, the 6th constant negative current constant current value be more than or equal to the zero, the 6th constant negative current duration be less than duration threshold
When value, keep the constant current value of the 6th constant negative current constant, and the duration of the 6th constant negative current is adjusted to duration threshold
Value, obtains the 8th constant negative current, using the 8th constant negative current as the first constant negative current, and the second constant positive current is made
For the first constant positive current, step 204 is executed again.
As the alternative steps of step 207, in step 222, it is more than or equal in the constant current value of the second constant positive current
Constant current threshold value, the 6th constant negative current constant current value less than the zero, the 6th constant negative current duration be less than duration threshold value when,
The constant current value of 6th constant negative current is adjusted to zero, and the duration of the 6th constant negative current is adjusted to duration threshold value,
Obtain the 9th constant negative current, using the 9th constant negative current as the first constant negative current, and using the second constant positive current as
First constant positive current executes step 204 again.
Referring to FIG. 9, it illustrates chargers from starting to charge to for battery during end is battery charging, battery
Charging current and charging voltage value variation schematic diagram, charger start for battery charging when, the voltage value of the battery is
1.9V, be less than preset threshold 2.1V, charger utilizing pre-charge current be the battery charge, at this point, the voltage value of the battery by
Gradually rise.When the voltage value of battery rises to setting voltage value 2.8V, the setting electric current of charger utilizing 1000mA is the electricity
Pond charging, at this point, the voltage value of the battery continues to rise.When the voltage value of battery rises to constant voltage threshold value 4.4V, perseverance is utilized
The constant negative current of flow valuve is 200mA, duration is 5s first is battery charging, is 900mA's using constant current value then
First constant positive current is battery charging.Increase afterwards at this point, the voltage value of the battery first reduces.When the first constant positive current makes
The voltage value of battery when rising to 4.4V again, the duration of the first constant negative current is subtracted into 1s, it is constant by first
The constant current value of negative current subtracts 50mA, obtains the 6th constant negative current that constant current value is 150mA, duration is 4s, and 150mA is big
In zero, and 4s is greater than duration threshold value 0.5s, using the 6th constant negative current as the first constant negative current；By the first constant positive current
Constant current value multiplied by the second coefficient 0.9, obtain the second constant positive current that constant current value is 810mA, 810mA is greater than constant current threshold value
100mA continues as battery charging, recycles above-mentioned steps using the second constant positive current as the first constant positive current, until the
The constant current value of two constant current positive currents stops when being less than constant current threshold value, at this point, charger utilizing numerical value is the electricity of constant voltage threshold value 4.4V
Pressure value is battery charging, and the charging current of the battery is gradually reduced.When charging current is reduced to current threshold 100mA, charging
Device stops being that the battery charges.
Figure 10 is a kind of block diagram of charging unit shown according to an exemplary embodiment, which is applied to charging
In device, as shown in Figure 10, which includes: the first determining module 1010, positive and negative constant-current charge module 1020, constant-voltage charge
Module 1030.
First determining module 1010, is configured to determine that whether the current voltage value of battery is equal to constant voltage threshold value；
The positive and negative constant-current charge module 1020 is configured as determining that voltage value is equal to constant pressure in the first determining module 1010
It when threshold value, is discharged using the first constant negative current battery, is charged the battery using the first constant positive current, first
Before the first constant current positive current, the voltage value of battery is reduced constant negative current when being discharged using the first constant negative current, and
The voltage value of battery is increased when using the first constant positive electricity current charge；
The constant-voltage charge module 1030 is configured as the first constant current positive current when positive and negative constant-current charge module 1020 obtains
When so that the voltage value of battery being again equal to constant voltage threshold value, constant voltage threshold value is kept not become battery charging, until the electricity of battery
Stopping when reaching Full Charge Capacity.
In conclusion the charging unit that the disclosure provides, when being equal to constant voltage threshold value by the voltage value in battery, first with
First constant negative current recycles the first constant positive current to charge battery, at this point, the voltage of the battery first subtracts battery discharge
Increase after small, when the voltage of the battery is again equal to constant voltage threshold value, the constant voltage of charger utilizing is battery charging, due to
The constant positive current of charger utilizing is that the speed of battery charging is faster than using the speed that constant voltage is battery charging, because
This, solves the voltage value of battery when being equal to constant voltage threshold value, and charger is directly that battery charging causes using constant voltage
The slow problem of the charging rate of the battery has achieved the effect that the charging rate for improving battery.
Figure 11 is a kind of block diagram of charging unit shown according to an exemplary embodiment, which is applied to charging
In device, as shown in figure 11, which includes: the first determining module 1110, positive and negative constant-current charge module 1120, constant-voltage charge
Module 1130.
First determining module 1110, is configured to determine that whether the current voltage value of battery is equal to constant voltage threshold value；
The positive and negative constant-current charge module 1120 is configured as determining that voltage value is equal to constant pressure in the first determining module 1110
It when threshold value, is discharged using the first constant negative current battery, is charged the battery using the first constant positive current, first
Before the first constant current positive current, the voltage value of battery is reduced constant negative current when being discharged using the first constant negative current, and
The voltage value of battery is increased when using the first constant positive electricity current charge；
The constant-voltage charge module 1130 is configured as the first constant current positive current when positive and negative constant-current charge module 1120 obtains
When so that the voltage value of battery being again equal to constant voltage threshold value, constant voltage threshold value is kept not become battery charging, until the electricity of battery
Stopping when reaching Full Charge Capacity.
Optionally, device further include: the first adjustment module 1140, the first comparison module 1150, the first trigger module
1160, the second trigger module 1170.
The first adjustment module 1140 is configured as making the voltage value of battery be again equal to perseverance when the first constant positive current
When pressing threshold value, the constant current value of the first constant positive current is reduced using the first coefficient, obtains the second constant positive current；
First comparison module 1150 is configured as comparing the first adjustment module 1140 obtains second constant positive current
Constant current value and constant current threshold value；
First trigger module 1160 is configured as in the comparison result of the first comparison module 1150 being the second constant positive electricity
When the constant current value of stream is more than or equal to constant current threshold value, using the second constant positive current as the first constant positive current, positive and negative constant current is triggered
The execution of charging module 1120 discharges to battery using the first constant negative current, is carried out using the first constant positive current to battery
The step of charging；
Second trigger module 1170 is configured as in the comparison result of the first comparison module 1150 being the second constant positive electricity
When the constant current value of stream is less than constant current threshold value, triggering constant-voltage charge module 1130, which executes, keeps constant voltage threshold value not become battery charging,
Until the step of electricity of battery stops when reaching Full Charge Capacity.
Optionally, device further include: second adjustment module 1180, the second comparison module 1190, third trigger module
1191, the 4th trigger module 1192.
The second adjustment module 1180 is configured as making the voltage value of battery be again equal to perseverance when the first constant positive current
When pressing threshold value, the constant current value of the first constant negative current is reduced using the second coefficient, obtains the second constant negative current；
Second comparison module 1190 is configured as the perseverance of the second constant negative current for obtaining second adjustment module 1180
Flow valuve is compared with zero；
The third trigger module 1191 is configured as in the comparison result of the second comparison module 1190 being the second constant positive electricity
The constant current value of stream is more than or equal to constant current threshold value, and when the constant current value of the second constant negative current is more than or equal to zero, constant negative by second
Electric current triggers positive and negative constant-current charge as the first constant negative current, and using the second constant positive current as the first constant positive current
The execution of module 1120 discharges to battery using the first constant negative current, is charged the battery using the first constant positive current
The step of；
4th trigger module 1192 is configured as in the comparison result of the second comparison module 1190 being the second constant positive electricity
The constant current value of stream is more than or equal to constant current threshold value, and when the constant current value of the second constant negative current is less than zero, by the second constant negative current
Constant current value adjust to zero, obtain the constant negative current of third, and using the constant positive current of third as the first constant positive current, triggering
The positive and negative execution of constant-current charge module 1120 discharges to battery using the first constant negative current, utilizes the first constant positive current pair
The step of battery is charged.
Optionally, device further include: third adjusts module 1193, third comparison module 1194, the 5th trigger module
1195, the 6th trigger module 1196.
The third adjusts module 1193, is configured as making the voltage value of battery be again equal to perseverance when the first constant positive current
When pressing threshold value, the duration of the first constant negative current is reduced using third coefficient, obtains the 4th constant negative current；
The third comparison module 1194 is configured as comparing the 4th constant negative current that third adjustment module 1193 obtains
Duration and duration threshold value；
5th trigger module 1195 is configured as in the comparison result of third comparison module 1194 being the second constant positive electricity
The constant current value of stream is more than or equal to constant current threshold value, and when the duration of the 4th constant negative current is more than or equal to duration threshold value, by the
Four constant negative currents trigger positive and negative as the first constant negative current, and using the second constant positive current as the first constant positive current
The execution of constant-current charge module 1120 discharges to battery using the first constant negative current, using the first constant positive current to battery
The step of being charged；
6th trigger module 1196 is configured as in the comparison result of third comparison module 1194 being the second constant positive electricity
The constant current value of stream be more than or equal to constant current threshold value, and the duration of the 4th constant negative current be less than duration threshold value when, by the 4th perseverance
The duration for determining negative current is adjusted to duration threshold value, obtains the 5th constant negative current, using the 5th constant negative current as first
Constant negative current, and using the second constant positive current as the first constant positive current, it triggers positive and negative constant-current charge module 1120 and executes
The step of being discharged using the first constant negative current battery, being charged the battery using the first constant positive current.
Optionally, device further include: the 4th adjustment module 1197, the 4th comparison module 1198, the 7th trigger module
1199, the 8th trigger module 11991, the 9th trigger module 11992, the tenth trigger module 11993.
4th adjustment module 1197, is configured as making the voltage value of battery be again equal to perseverance when the first constant positive current
When pressing threshold value, the constant current value of the first constant negative current is reduced using the second coefficient, and constant negative using third coefficient diminution first
The duration of electric current obtains the 6th constant negative current；
4th comparison module 1198 is configured as the perseverance for the 6th constant negative current for obtaining the 4th adjustment module 1197
Flow valuve is compared with zero, and compares the duration and duration threshold value of the 6th constant negative current；
7th trigger module 1199 is configured as in the comparison result of the 4th comparison module 1198 being the second constant positive electricity
The constant current value of stream is more than or equal to constant current threshold value, the constant current value of the 6th constant negative current is more than or equal to the zero, the 6th constant negative current
Duration be more than or equal to duration threshold value when, using the 6th constant negative current as the first constant negative current, and by second it is constant just
Electric current as the first constant positive current, trigger positive and negative constant-current charge module 1120 execute using the first constant negative current to battery into
Row electric discharge, the step of being charged the battery using the first constant positive current；
8th trigger module 11991, be configured as the 4th comparison module 1198 comparison result be second it is constant just
The constant current value of electric current is more than or equal to constant current value the holding less than the zero, the 6th constant negative current of constant current threshold value, the 6th constant negative current
When continuous duration is more than or equal to duration threshold value, the constant current value of the 6th constant negative current is adjusted to zero, and keep the 6th constant negative electricity
The duration of stream is constant, obtains the 7th constant negative current, using the 7th constant negative current as the first constant negative current, and by
Two constant positive currents trigger the positive and negative execution of constant-current charge module 1120 and utilize the first constant negative current as the first constant positive current
The step of discharging battery, being charged the battery using the first constant positive current；
9th trigger module 11992, be configured as the 4th comparison module 1198 comparison result be second it is constant just
The constant current value of electric current is more than or equal to constant current threshold value, the constant current value of the 6th constant negative current is more than or equal to the zero, the 6th constant negative current
Duration when being less than duration threshold value, keep the constant current value of the 6th constant negative current constant, and by the 6th constant negative current
Duration is adjusted to duration threshold value, obtains the 8th constant negative current, using the 8th constant negative current as the first constant negative current,
And using the second constant positive current as the first constant positive current, it is constant using first to trigger the positive and negative execution of constant-current charge module 1120
The step of negative current discharges to battery, is charged the battery using the first constant positive current；
Tenth trigger module 11993, be configured as the 4th comparison module 1198 comparison result be second it is constant just
The constant current value of electric current is more than or equal to constant current value the holding less than the zero, the 6th constant negative current of constant current threshold value, the 6th constant negative current
When continuous duration is less than duration threshold value, the constant current value of the 6th constant negative current is adjusted to zero, and holding the 6th constant negative current
Continuous duration is adjusted to duration threshold value, obtains the 9th constant negative current, using the 9th constant negative current as the first constant negative current, and
Using the second constant positive current as the first constant positive current, it is constant negative using first to trigger the positive and negative execution of constant-current charge module 1120
The step of current versus cell discharges, and is charged the battery using the first constant positive current.
Optionally, positive and negative constant-current charge module 1120, comprising: timing submodule 1121, control submodule 1122.
The timing submodule 1121 is configured as exporting the first constant negative current by GPIO, and utilizes system timer
Set the duration of the first constant negative current；
The control submodule 1122 is configured as reaching timing submodule 1121 in the duration for exporting the first constant negative current
When the duration of the constant negative current of first obtained, MOSFET is controlled by GPIO and stops the first constant negative current of output.
Optionally, device further include: the second determining module 11994, constant-current charge module 11995.
Second determining module 11994, is configured to determine that whether the current voltage value of battery is more than or equal to setting voltage
Value；
The constant-current charge module 11995 is configured as determining the current voltage value of battery when the second determining module 11994
It is battery charging using constant setting electric current when more than or equal to setting voltage value, triggering executes the voltage for determining that battery is current
The step of whether value is equal to constant voltage threshold value.
In conclusion the charging unit that the disclosure provides, when being equal to constant voltage threshold value by the voltage value in battery, first with
First constant negative current recycles the first constant positive current to charge battery, at this point, the voltage of the battery first subtracts battery discharge
Increase after small, when the voltage of the battery is again equal to constant voltage threshold value, the constant voltage of charger utilizing is battery charging, due to
The constant positive current of charger utilizing is that the speed of battery charging is faster than using the speed that constant voltage is battery charging, because
This, solves the voltage value of battery when being equal to constant voltage threshold value, and charger is directly that battery charging causes using constant voltage
The slow problem of the charging rate of the battery has achieved the effect that the charging rate for improving battery.
In addition, ohm can occur for the charging battery core of the battery when being that battery charges due to the constant electric current of charger utilizing
Polarization phenomena, concentration polarization phenomenon and activation polarization phenomenon, and the first constant negative current can eliminate the charging battery core of battery
Ohmic polarization, concentration polarization phenomenon and the activation polarization phenomenon of generation, therefore, when the constant electric current of charger utilizing is battery
Charging, when so that the voltage value of the battery being equal to constant voltage threshold value, by being put using the first constant negative current to the battery
Electricity eliminates the concentration polarization phenomenon and activation polarization phenomenon of the charging battery core of battery, extends the service life of battery.
In addition, ohmic polarization phenomenon, concentration occur for the charging battery core of battery due to successively decreasing with the first constant positive current
Polarization phenomena and activation polarization phenomenon slow, at this point, that constant current value is smaller or duration is shorter is first constant
Negative current can eliminate ohmic polarization phenomenon, concentration polarization phenomenon and activation polarization phenomenon, and therefore, charger passes through diminution
The constant current value of first constant negative current, alternatively, the duration of the first constant negative current is reduced, alternatively, it is permanent to reduce first simultaneously
The constant current value and duration for determining negative current can not only eliminate ohmic polarization phenomenon, concentration that the charging battery core of battery occurs
Polarization phenomena and activation polarization phenomenon will not also release excessive electricity to battery, accelerate the charging rate of battery.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, no detailed explanation will be given here.
An exemplary embodiment of the present disclosure provides a kind of charging units, can be realized the charging method of disclosure offer,
The charging unit includes: processor, for the memory of storage processor executable instruction；
Wherein, processor is configured as:
Determine whether the current voltage value of battery is equal to constant voltage threshold value；
When voltage value is equal to constant voltage threshold value, discharged using the first constant negative current battery, it is constant using first
Positive current charges the battery, and for the first constant negative current before the first constant current positive current, the voltage value of battery is utilizing the
One constant negative current reduces when discharging, and the voltage value of battery is increased when using the first constant positive electricity current charge；
When the first constant current positive current makes the voltage value of battery be again equal to constant voltage threshold value, constant voltage threshold value is kept not become
Battery charging, until stopping when the electricity of battery reaches Full Charge Capacity.
Figure 12 is a kind of block diagram of device 1200 for charging shown according to an exemplary embodiment.For example, device
1200 can be charger or mobile charger.
Referring to Fig.1 2, device 1200 may include following one or more components: processing component 1202, regulated power supply
1204, constant-current control circuit 1206, limited-voltage control circuit 1208, in limited time control circuit 1210 and microcontroller 1212 form.
The integrated operation of the usual control device 1200 of processing component 1202 such as controls the switch of regulated power supply 1204, permanent
Flow control circuit 1206, limited-voltage control circuit 1208, in limited time on and off of control circuit 1210 etc., in the processing component extremely
It less include microcontroller 1212, the microcontroller 1212 is for generating constant positive current and constant negative current.
Regulated power supply 1204 is used to provide stable operating voltage value and sufficient charging current.
Constant-current control circuit 1206 is for providing constant charging current.
Limited-voltage control circuit 1208 is for the charging voltage value of battery to be limited within constant voltage threshold value.
Control circuit 1210 is used to control the charging duration of the constant-current charge of battery in limited time.
Those skilled in the art will readily occur to other realities of the disclosure after considering specification and practicing disclosure herein
Apply scheme.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or suitable
The variation of answering property follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure or used
Use technological means.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following right
It is required that pointing out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (11)
1. a kind of charging method, which is characterized in that the described method includes:
Determine whether the current voltage value of battery is equal to constant voltage threshold value；
It when the voltage value is equal to the constant voltage threshold value, is discharged using the first constant negative current the battery, is utilized
First constant positive current charges to the battery, the first constant negative current before the first constant current positive current,
The voltage value of the battery is reduced when being discharged using the first constant negative current, and the voltage value of the battery is utilizing institute
Increase when stating the first constant positive electricity current charge；
When the first constant current positive current makes the voltage value of the battery be again equal to the constant voltage threshold value, the perseverance is kept
Pressure threshold value does not become the battery charging, until stopping when the electricity of the battery reaches Full Charge Capacity；
Wherein, the method also includes:
When the described first constant positive current makes the voltage value of the battery be again equal to the constant voltage threshold value, the first system is utilized
Number reduces the constant current value of the first constant positive current, obtains the second constant positive current；
Compare the constant current value and constant current threshold value of the described second constant positive current；
When the constant current value of the described second constant positive current is more than or equal to the constant current threshold value, the described second constant positive current is made
For the described first constant positive current, triggering execute it is described is discharged using the first constant negative current the battery, utilize the
The step of one constant positive current charges to the battery；
When the constant current value of the described second constant positive current is less than the constant current threshold value, triggering executes the holding constant pressure threshold
Value does not become the battery charging, until the step of electricity of the battery stops when reaching Full Charge Capacity；
Wherein, the method also includes:
When the described first constant positive current makes the voltage value of the battery be again equal to the constant voltage threshold value, the second system is utilized
Number reduces the constant current value of the first constant negative current, obtains the second constant negative current；
The constant current value of described second constant negative current is compared with zero；
It is more than or equal to the constant current threshold value, and the perseverance of the second constant negative current in the constant current value of the described second constant positive current
When flow valuve is more than or equal to zero, using the described second constant negative current as the described first constant negative current, and it is constant by described second
As the described first constant positive current, triggering execution is described to put the battery using the first constant negative current positive current
Electricity, the step of charging using the first constant positive current to the battery；
It is more than or equal to the constant current threshold value, and the perseverance of the second constant negative current in the constant current value of the described second constant positive current
When flow valuve is less than zero, the constant current value of the described second constant negative current is adjusted to zero, obtains the constant negative current of third, and will be described
For the constant positive current of third as the described first constant positive current, triggering execution is described to utilize the first constant negative current to the battery
The step of discharging, being charged using the first constant positive current to the battery.
2. the method according to claim 1, wherein the method also includes:
When the described first constant positive current makes the voltage value of the battery be again equal to the constant voltage threshold value, third system is utilized
Number reduces the duration of the first constant negative current, obtains the 4th constant negative current；
Compare the duration and duration threshold value of the 4th constant negative current；
It is more than or equal to the constant current threshold value in the constant current value of the described second constant positive current, and the 4th constant negative current is held
When continuous duration is more than or equal to the duration threshold value, using the 4th constant negative current as the described first constant negative current, and will
For the second constant positive current as the described first constant positive current, triggering execution is described to utilize the first constant negative current to described
The step of battery discharges, and is charged using the first constant positive current to the battery；
It is more than or equal to the constant current threshold value in the constant current value of the described second constant positive current, and the 4th constant negative current is held
When continuous duration is less than the duration threshold value, the duration of the 4th constant negative current is adjusted to the duration threshold value, is obtained
To the 5th constant negative current, using the 5th constant negative current as the described first constant negative current, and it is constant by described second
As the described first constant positive current, triggering execution is described to put the battery using the first constant negative current positive current
Electricity, the step of charging using the first constant positive current to the battery.
3. the method according to claim 1, wherein the method also includes:
When the described first constant positive current makes the voltage value of the battery be again equal to the constant voltage threshold value, the second system is utilized
Number reduces the constant current values of the first constant negative currents, and using third coefficient reduce the described first constant negative current it is lasting when
It is long, obtain the 6th constant negative current；
The constant current value of the 6th constant negative current is compared with zero, and the 6th constant negative current it is lasting when
Long and duration threshold value；
It is more than or equal to the constant current of the constant current threshold value, the 6th constant negative current in the constant current value of the described second constant positive current
It is constant negative by the described 6th when the duration that value is more than or equal to zero, the 6th constant negative current is more than or equal to duration threshold value
Electric current is triggered as the described first constant negative current, and using the described second constant positive current as the described first constant positive current
Execute it is described discharged using the first constant negative current the battery, using the first constant positive current to the battery carry out
The step of charging；
It is more than or equal to the constant current of the constant current threshold value, the 6th constant negative current in the constant current value of the described second constant positive current
When value is more than or equal to duration threshold value less than the duration of zero, the 6th constant negative current, by the 6th constant negative current
Constant current value adjust to zero, and keep the duration of the 6th constant negative current constant, obtain the 7th constant negative current, will
The 7th constant negative current is and permanent using the described second constant positive current as described first as the described first constant negative current
Determine positive current, triggering execution is described to discharge to the battery using the first constant negative current, utilizes the first constant positive current
The step of charging to the battery；
It is more than or equal to the constant current of the constant current threshold value, the 6th constant negative current in the constant current value of the described second constant positive current
When the duration that value is more than or equal to zero, the 6th constant negative current is less than duration threshold value, the 6th constant negative electricity is kept
The constant current value of stream is constant, and the duration of the 6th constant negative current is adjusted to the duration threshold value, obtains the 8th perseverance
Determine negative current, using the 8th constant negative current as the described first constant negative current, and the described second constant positive current is made
For the described first constant positive current, triggering execute it is described is discharged using the first constant negative current the battery, utilize the
The step of one constant positive current charges to the battery；
It is more than or equal to the constant current of the constant current threshold value, the 6th constant negative current in the constant current value of the described second constant positive current
When value is less than duration threshold value less than the duration of zero, the 6th constant negative current, by the perseverance of the 6th constant negative current
Flow valuve is adjusted to zero, and the duration of the 6th constant negative current is adjusted to the duration threshold value, and it is constant to obtain the 9th
Negative current, using the 9th constant negative current as the described first constant negative current, and using the described second constant positive current as
The first constant positive current, triggering execution is described to discharge to the battery using the first constant negative current, utilizes first
The step of constant positive current charges to the battery.
4. method according to any one of claims 1 to 3, which is characterized in that described to utilize the first constant negative current to described
Battery discharges, comprising:
GPIO is exported by universal input and exports the first constant negative current, and sets first perseverance using system timer
Determine the duration of negative current；
When the duration for exporting the first constant negative current reaches the duration of the described first constant negative current, by described
GPIO, which controls Metal Oxide Semiconductor Field Effect Transistor MOSFET, to be stopped exporting the first constant negative current.
5. method according to any one of claims 1 to 3, which is characterized in that the method also includes:
Determine whether the current voltage value of the battery is more than or equal to setting voltage value；
It is the electricity using constant setting electric current when the current voltage value of the battery is more than or equal to the setting voltage value
Pond charging, triggering execute the step of whether current voltage value of the determining battery is equal to constant voltage threshold value.
6. a kind of charging unit, which is characterized in that described device includes:
First determining module, is configured to determine that whether the current voltage value of battery is equal to constant voltage threshold value；
Positive and negative constant-current charge module is configured as determining that the voltage value is equal to the constant pressure threshold in first determining module
It when value, is discharged using the first constant negative current the battery, the battery is filled using the first constant positive current
Electricity, for the first constant negative current before the first constant current positive current, the voltage value of the battery is utilizing described first
Constant negative current reduces when discharging, and the voltage value of the battery is increased when using the described first constant positive electricity current charge；
Constant-voltage charge module is configured as making institute when the first constant current positive current that the positive and negative constant-current charge module obtains
When stating the voltage value of battery and being again equal to the constant voltage threshold value, keeping the constant voltage threshold value not becomes the battery charging, until
The stopping when electricity of the battery reaches Full Charge Capacity；
Wherein, described device further include:
The first adjustment module is configured as when to be again equal to the voltage value of the battery described for the described first constant positive current
When constant voltage threshold value, the constant current value of the described first constant positive current is reduced using the first coefficient, obtains the second constant positive current；
First comparison module is configured as the constant current value for the described second constant positive current that the first adjustment module described in comparison obtains
With constant current threshold value；
First trigger module is configured as in the perseverance that the comparison result of first comparison module is the described second constant positive current
When flow valuve is more than or equal to the constant current threshold value, using the described second constant positive current as the described first constant positive current, institute is triggered
State positive and negative constant-current charge module execute it is described discharged using the first constant negative current the battery, using first it is constant just
The step of electric current charges to the battery；
Second trigger module is configured as in the perseverance that the comparison result of first comparison module is the described second constant positive current
When flow valuve is less than the constant current threshold value, triggering the constant-voltage charge module execution holding constant voltage threshold value does not become described
Battery charging, until the step of electricity of the battery stops when reaching Full Charge Capacity；
Wherein, described device further include:
Second adjustment module is configured as when to be again equal to the voltage value of the battery described for the described first constant positive current
When constant voltage threshold value, the constant current value of the described first constant negative current is reduced using the second coefficient, obtains the second constant negative current；
Second comparison module, be configured as the constant current value of the described second constant negative current for obtaining the second adjustment module with
Zero is compared；
Third trigger module is configured as in the perseverance that the comparison result of second comparison module is the described second constant positive current
Flow valuve be more than or equal to the constant current threshold value, and the constant current value of the second constant negative current be more than or equal to zero when, by described second
Constant negative current is as the described first constant negative current, and using the described second constant positive current as the described first constant positive electricity
Stream, the triggering positive and negative constant-current charge module execution is described to discharge to the battery using the first constant negative current, utilizes
The step of first constant positive current charges to the battery；
4th trigger module is configured as in the perseverance that the comparison result of second comparison module is the described second constant positive current
Flow valuve is more than or equal to the constant current threshold value, and when the constant current value of the second constant negative current is less than zero, constant by described second
The constant current value of negative current is adjusted to zero, obtains the constant negative current of third, and using the constant positive current of the third as described first
Constant positive current, the triggering positive and negative constant-current charge module execution is described to put the battery using the first constant negative current
Electricity, the step of charging using the first constant positive current to the battery.
7. device according to claim 6, which is characterized in that described device further include:
Third adjusts module, is configured as when to be again equal to the voltage value of the battery described for the described first constant positive current
When constant voltage threshold value, the duration of the described first constant negative current is reduced using third coefficient, obtains the 4th constant negative current；
Third comparison module, be configured as obtained the 4th constant negative current of the adjustment module of third described in comparison it is lasting when
Long and duration threshold value；
5th trigger module is configured as in the perseverance that the comparison result of the third comparison module is the described second constant positive current
Flow valuve is more than or equal to the constant current threshold value, and the duration of the 4th constant negative current is more than or equal to the duration threshold value
When, using the 4th constant negative current as the described first constant negative current, and using the described second constant positive current as described in
First constant positive current, trigger the positive and negative constant-current charge module execute it is described using the first constant negative current to the battery into
Row electric discharge, the step of charging using the first constant positive current to the battery；
6th trigger module is configured as in the perseverance that the comparison result of the third comparison module is the described second constant positive current
Flow valuve be more than or equal to the constant current threshold value, and the duration of the 4th constant negative current be less than the duration threshold value when, will
The duration of the 4th constant negative current is adjusted to the duration threshold value, obtains the 5th constant negative current, by the described 5th
Constant negative current is as the described first constant negative current, and using the described second constant positive current as the described first constant positive electricity
Stream, the triggering positive and negative constant-current charge module execution is described to discharge to the battery using the first constant negative current, utilizes
The step of first constant positive current charges to the battery.
8. device according to claim 6, which is characterized in that described device further include:
4th adjustment module is configured as when to be again equal to the voltage value of the battery described for the described first constant positive current
When constant voltage threshold value, the constant current value of the described first constant negative current is reduced using the second coefficient, and using described in the diminution of third coefficient
The duration of first constant negative current, obtains the 6th constant negative current；
4th comparison module, be configured as the constant current value of the 6th constant negative current for obtaining the 4th adjustment module with
Zero is compared, and the duration of the 6th constant negative current and duration threshold value；
7th trigger module is configured as in the perseverance that the comparison result of the 4th comparison module is the described second constant positive current
It is constant negative that flow valuve is more than or equal to the constant current threshold value, the constant current value of the 6th constant negative current is more than or equal to the zero, the described 6th
When the duration of electric current is more than or equal to duration threshold value, using the 6th constant negative current as the described first constant negative current,
And using the described second constant positive current as the described first constant positive current, trigger described in the positive and negative constant-current charge module execution
It is discharged using the first constant negative current the battery, the step to be charged using the first constant positive current to the battery
Suddenly；
8th trigger module is configured as in the perseverance that the comparison result of the 4th comparison module is the described second constant positive current
Flow valuve be more than or equal to the constant current threshold value, the 6th constant negative current constant current value less than zero, the 6th constant negative current
Duration when being more than or equal to duration threshold value, the constant current value of the 6th constant negative current is adjusted to zero, and described in keeping
The duration of 6th constant negative current is constant, obtains the 7th constant negative current, using the 7th constant negative current as described in
First constant negative current, and using the described second constant positive current as the described first constant positive current, trigger the positive and negative constant current
Charging module execution is described to discharge to the battery using the first constant negative current, using the first constant positive current to described
The step of battery is charged；
9th trigger module is configured as in the perseverance that the comparison result of the 4th comparison module is the described second constant positive current
It is constant negative that flow valuve is more than or equal to the constant current threshold value, the constant current value of the 6th constant negative current is more than or equal to the zero, the described 6th
When the duration of electric current is less than duration threshold value, keep the constant current value of the 6th constant negative current constant, and by the described 6th
The duration of constant negative current is adjusted to the duration threshold value, obtains the 8th constant negative current, by the 8th constant negative electricity
Stream is used as the described first constant negative current, and using the described second constant positive current as the described first constant positive current, triggers institute
State positive and negative constant-current charge module execute it is described discharged using the first constant negative current the battery, using first it is constant just
The step of electric current charges to the battery；
Tenth trigger module is configured as in the perseverance that the comparison result of the 4th comparison module is the described second constant positive current
Flow valuve be more than or equal to the constant current threshold value, the 6th constant negative current constant current value less than zero, the 6th constant negative current
Duration when being less than duration threshold value, the constant current value of the 6th constant negative current is adjusted to zero, and will the 6th perseverance
The duration for determining negative current is adjusted to the duration threshold value, obtains the 9th constant negative current, by the 9th constant negative current
As the described first constant negative current, and using the described second constant positive current as the described first constant positive current, described in triggering
Positive and negative constant-current charge module execution is described to discharge to the battery using the first constant negative current, utilizes the first constant positive electricity
The step of stream charges to the battery.
9. according to any device of claim 6 to 8, which is characterized in that the positive and negative constant-current charge module, comprising:
Timing submodule is configured as exporting the GPIO output first constant negative current by universal input, and utilizes system
Timer sets the duration of the described first constant negative current；
Control submodule is configured as reaching what the timing submodule obtained in the duration for exporting the first constant negative current
When the duration of the first constant negative current, Metal Oxide Semiconductor Field Effect Transistor is controlled by the GPIO
MOSFET stops exporting the first constant negative current.
10. according to any device of claim 6 to 8, which is characterized in that described device further include:
Second determining module, is configured to determine that whether the current voltage value of the battery is more than or equal to setting voltage value；
Constant-current charge module is configured as determining that the current voltage value of the battery is more than or equal to when second determining module
It when the setting voltage value, is that the battery charges using constant setting electric current, it is current that triggering executes the determining battery
The step of whether voltage value is equal to constant voltage threshold value.
11. a kind of charging unit, which is characterized in that described device includes:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
Determine whether the current voltage value of battery is equal to constant voltage threshold value；
It when the voltage value is equal to the constant voltage threshold value, is discharged using the first constant negative current the battery, is utilized
First constant positive current charges to the battery, the first constant negative current before the first constant current positive current,
The voltage value of the battery is reduced when being discharged using the first constant negative current, and the voltage value of the battery is utilizing institute
Increase when stating the first constant positive electricity current charge；
When the first constant current positive current makes the voltage value of the battery be again equal to the constant voltage threshold value, the perseverance is kept
Pressure threshold value does not become the battery charging, until stopping when the electricity of the battery reaches Full Charge Capacity；
Wherein, the processor is also configured to make the voltage value of the battery inferior again when the described first constant positive current
When the constant voltage threshold value, the constant current value of the described first constant positive current is reduced using the first coefficient, obtains the second constant positive electricity
Stream；
Compare the constant current value and constant current threshold value of the described second constant positive current；
When the constant current value of the described second constant positive current is more than or equal to the constant current threshold value, the described second constant positive current is made
For the described first constant positive current, triggering execute it is described is discharged using the first constant negative current the battery, utilize the
The step of one constant positive current charges to the battery；
When the constant current value of the described second constant positive current is less than the constant current threshold value, triggering executes the holding constant pressure threshold
Value does not become the battery charging, until the step of electricity of the battery stops when reaching Full Charge Capacity；
Wherein, the processor is also configured to make the voltage value of the battery inferior again when the described first constant positive current
When the constant voltage threshold value, the constant current value of the described first constant negative current is reduced using the second coefficient, obtains the second constant negative electricity
Stream；
The constant current value of described second constant negative current is compared with zero；
It is more than or equal to the constant current threshold value, and the perseverance of the second constant negative current in the constant current value of the described second constant positive current
When flow valuve is more than or equal to zero, using the described second constant negative current as the described first constant negative current, and it is constant by described second
As the described first constant positive current, triggering execution is described to put the battery using the first constant negative current positive current
Electricity, the step of charging using the first constant positive current to the battery；
It is more than or equal to the constant current threshold value, and the perseverance of the second constant negative current in the constant current value of the described second constant positive current
When flow valuve is less than zero, the constant current value of the described second constant negative current is adjusted to zero, obtains the constant negative current of third, and will be described
For the constant positive current of third as the described first constant positive current, triggering execution is described to utilize the first constant negative current to the battery
The step of discharging, being charged using the first constant positive current to the battery.
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| JP2015204705A (en) * | 2014-04-15 | 2015-11-16 | リコー電子デバイス株式会社 | Charge control circuit and method, and charging device |
| CN105162181A (en) * | 2015-07-01 | 2015-12-16 | 深圳天珑无线科技有限公司 | Charging method and device |
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| CN103384075A (en) * | 2013-07-03 | 2013-11-06 | 武汉鑫双易科技开发有限公司 | Low-ripple-wave lithium battery charging and discharging achieving method |
| JP2015204705A (en) * | 2014-04-15 | 2015-11-16 | リコー電子デバイス株式会社 | Charge control circuit and method, and charging device |
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