CN106786954B - A kind of charging adapter automatic adjusument charging time device, system and method - Google Patents
A kind of charging adapter automatic adjusument charging time device, system and method Download PDFInfo
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- CN106786954B CN106786954B CN201710010961.4A CN201710010961A CN106786954B CN 106786954 B CN106786954 B CN 106786954B CN 201710010961 A CN201710010961 A CN 201710010961A CN 106786954 B CN106786954 B CN 106786954B
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- 238000007600 charging Methods 0.000 title claims abstract description 388
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 claims description 20
- 238000012360 testing method Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 10
- 238000002474 experimental method Methods 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
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- 230000003044 adaptive effect Effects 0.000 description 1
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- 238000004200 deflagration Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
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- H02J7/0077—
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Abstract
The invention discloses a kind of charging adapter automatic adjusument charging time devices, system and method, the present invention relates to charging technique fields, battery charge time is automatically adjusted according to the charging current of charging adapter and cell voltage, compared with prior art, it is low in cost, charge more secure and reliable, and user is prevented to be not fully filled problem without using the charger charging bring battery of standard configuration.
Description
Technical field
The present invention relates to charging technique field more particularly to a kind of charging adapter automatic adjusument charging time device,
System and method.
Background technique
Handheld POS terminal is a kind of multi-functional terminal end, it be mounted on the franchised business of credit card and accept in site with
Computer is unified into network, can be achieved with electronic funds and transfers accounts automatically, it, which has, supports consumption, pre-authorization, inquiry into balance and transfer accounts
Etc. functions, use conveniently, safely, fast, reliably.However, the portability in order to realize handheld POS terminal, inevitable from not
Open the use of rechargeable battery.Currently, most of rechargeable batteries are lithium batteries in the market, lithium battery has small in size, monomer
The advantages that battery pressure difference is high, and energy density is high, long service life；The shortcomings that lithium battery is poor safety performance, excessive in lithium battery
In the case where charging, it be easy to cause safety valve rupture to cause the situations such as fire, explosion, this is breakneck, so must add
Dress protection IC (charging chip) to ensure that battery will not overcharge, while need software to protection circuit carry out control and
Coordinate.
In current Charge Management, commonly use there are two ways to, one is using profession high-performance charging management chip,
Automatically the charging adapter for adapting to different electric currents is filled due to the high-performance charging management chip using profession without software management
Electric process can adapt to different viewpoints charging adapter, better performances automatically, but be internally integrated charging current detection module, battery
Electric power detection module, higher cost cannot be widely applied in product inexpensive in the market.Another kind is filled using common
Electric managing chip manages charging by software detection cell voltage, due to use common charging management chip, performance compared with
Difference is required to be controlled by the enabled pin of charging of the software to Charge Management IC to realize for the safety for guaranteeing charging
It opens charging and charge closing needs to use in the case where occurring to be full of battery in the time that battery is normally full of
Timeout mechanism charge to stop charging, guarantees that battery does not burst because of overcharging and causes fire, however when the time-out of battery charging
Between it is current related with charging, electric current is bigger, and time-out time is shorter, and the smaller time-out time of electric current is longer, therefore, when user use
When different charging adapters is charged, the time-out time of timeout mechanism can not be determined, if time-out time setting is too long
There are battery explosion risks, may cause battery underfill if time-out time setting is too short and stop charging.
Summary of the invention
In order to solve the above-mentioned technical problem, the object of the present invention is to provide a kind of chargings at low cost, charging is safe and reliable
Adapter automatic adjusument charging time device.
In order to solve the above-mentioned technical problem, a second object of the present invention is to provide a kind of at low cost, chargings securely and reliably
Charging adapter automatic adjusument charging time system.
In order to solve the above-mentioned technical problem, third object of the present invention is to provide a kind of at low cost, chargings securely and reliably
Charging adapter automatic adjusument charging time method.
The technical scheme adopted by the invention is that: a kind of charging adapter automatic adjusument charging time method, including step
It is rapid:
S1 obtains cell voltage, obtains the charging time；
S2 obtains corresponding charging current according to cell voltage and charging time；
Charging total time t is arranged according to charging current in S3.
As a further improvement, the step S1 further includes sub-step:
S11 acquires battery current voltage, if battery underfill, detects battery temperature；
S12 starts to charge the battery if battery temperature is normal, constantly detection cell voltage, and starts timing and obtain charging
Time.
As a further improvement, the specific steps of the step S2 are as follows: directly acquire charging current, cell voltage and fill
Electric time relationship corresponds to table, according to charging time step S1 collected cell voltage and got, obtains corresponding charging
Electric current.
As a further improvement, the specific steps of the step S2 are as follows: experiment test obtains charging current, cell voltage
Table is corresponded to charging time relationship, is charged the battery using different charging currents, when obtaining each charging current and charging
Between, the relationship of cell voltage correspond to table, it is to be filled according to battery that the charging current, cell voltage and charging time relationship, which correspond to table,
Piezoelectric voltage and charging time linear relationship characteristic divide charging current, cell voltage and the charging time relationship of multiple voltage ranges
Corresponding table obtains corresponding charging current according to charging time step S1 collected cell voltage and got.
As a further improvement, the step S3 includes sub-step:
S31 according to charging current, and according to charging current and charging time relationship corresponds to table cell voltage is calculated and fill
Full required total charging time, setting charging total time t；
S32 constantly detects the temperature and cell voltage of battery in charging total time t, according to battery temperature and battery electricity
Voltage-controlled system charging opens and closes, if battery charge time beyond charging total time t, is forced to stop charging.
As a further improvement, the step S32 includes sub-step:
S321 constantly detects the temperature of battery in charging total time t, when battery temperature exceeds the chargeable temperature of battery
When spending range, stop reopening charging until after the chargeable temperature of battery temperature recovery to battery charging；
S322, in charging total time t, when battery temperature is in the chargeable temperature range of battery, continuous detection electricity
Cell voltage, judges whether battery is full of, if battery is full of, charge closing.
A kind of charging adapter automatic adjusument charging time device, including obtain voltage and charging time module, calculate
Charging current module, calculating and setting charge total time module, the acquisition voltage and charging time module for obtaining battery electricity
Pressure and charging time, the calculating charging current module are used to calculate charging current according to cell voltage and charging time, institute
Calculating and setting charging total time module is stated to be used to calculate charging total time that cell voltage is full of according to charging current and be arranged
It charges total time.
A kind of charging adapter automatic adjusument charging time system is used to implement a kind of charging adapter and adaptively adjusts
Save charging time method, including battery；USB interface, USB interface and charging IC are connected as charging IC power supply；Charge IC, and charge IC
The battery is connected as with the battery to charge and detect battery temperature；MCU control unit, MCU control unit and the electricity
To acquire the cell voltage, MCU control unit is also connect to detect charging current, MCU control with the USB interface for pond connection
Unit also connect control charging IC charging with the charging IC.
As a further improvement, the MCU control unit further includes D A switch module, the D A switch module
Input terminal connect the output end of the battery to acquire the cell voltage.
As a further improvement, the MCU control unit has enabled foot, and the MCU control unit enables foot connection
The charging enable end IC is to open charging IC charging, and the charging IC has charged state foot, and the MCU control unit passes through connection
IC charged state foot charge to obtain the charged state of charging IC.
As a further improvement, the MCU control unit further includes timing module, and the timing module is according to battery electricity
Pressure and charging current setting starting timing module.
The beneficial effects of the present invention are: a kind of charging adapter automatic adjusument charging time device, according to adaptive charging
The charging current of device and cell voltage regulating cell charging time, compared with prior art, low in cost, charging is safer can
It leans on, user is prevented to be not fully filled problem without using the charger charging bring battery of standard configuration.
Second beneficial effect of the invention is: a kind of charging adapter automatic adjusument charging time system, according to filling
The charging current of Electric adapter and cell voltage regulating cell charging time, compared with prior art, low in cost, charging is more pacified
It is complete reliable, prevent user to be not fully filled problem without using the charger charging bring battery of standard configuration.
Third beneficial effect of the invention is: a kind of charging adapter automatic adjusument charging time method, according to filling
The charging current of Electric adapter and cell voltage regulating cell charging time, compared with prior art, low in cost, charging is more pacified
It is complete reliable, prevent user to be not fully filled problem without using the charger charging bring battery of standard configuration.
Detailed description of the invention
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing:
Fig. 1 is a kind of functional block diagram of charging adapter automatic adjusument charging time system of the present invention；
Fig. 2 is that a kind of charging adapter automatic adjusument charging time system specific embodiment lithium battery of the present invention charged
Journey voltage-time curve figure；
Fig. 3 is a kind of charging adapter automatic adjusument charging time system specific embodiment charging rate detection of the present invention
Flow chart.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
Embodiment one, a kind of charging adapter automatic adjusument charging time method.
A kind of charging adapter automatic adjusument charging time method, comprising steps of S1, obtains cell voltage, acquisition is filled
The electric time；S2 obtains corresponding charging current according to cell voltage and charging time；S3, it is total according to charging current setting charging
Time.
Step S1 includes sub-step: S11, acquires battery current voltage, if battery underfill, detects battery temperature；S12,
If battery temperature is normal, start to charge the battery, constantly detection cell voltage, and starts timing and obtain the charging time.
The specific steps of step S2 are as follows: it directly acquires charging current, cell voltage and charging time relationship and corresponds to table, according to
Charging time step S1 collected cell voltage and got obtains corresponding charging current.
The specific steps of step S2 may also is that experiment test obtains charging current, cell voltage and charging time relationship
Corresponding table, is charged the battery using different charging currents, obtains the pass of each charging current and charging time, cell voltage
It is corresponding table, it is according to battery charging voltage and when charging that the charging current, cell voltage and charging time relationship, which correspond to table,
Between linear relationship characteristic divide charging current, cell voltage and the charging time relationship of multiple voltage ranges and correspond to table, according to step
Suddenly in charging time S1 collected cell voltage and got, corresponding charging current is obtained.
Step S3 includes sub-step: S31, corresponds to table according to charging current, and according to charging current and charging time relationship
Cell voltage is calculated full of required total charging time, setting charging total time t；S32, in charging total time t, constantly
The temperature and cell voltage for detecting battery are opened and closed according to battery temperature and cell voltage control charging, if battery charges
Time beyond charging total time t, then is forced to stop charging.
Step S32 includes sub-step: S321, in charging total time t, constantly detects the temperature of battery, works as battery temperature
When temperature range chargeable beyond battery, stop to battery charging after battery temperature restores chargeable temperature, again
Open charging；S322, in charging total time t, when battery temperature is in the chargeable temperature range of battery, continuous detection electricity
Cell voltage, judges whether battery is full of, if battery is full of, charge closing.
In order to implement a kind of above-mentioned charging adapter automatic adjusument charging time method, the present invention also designs a kind of charging
Adapter automatic adjusument charging time system.
Embodiment two, a kind of charging adapter automatic adjusument charging time device.
A kind of charging adapter automatic adjusument charging time device, including
Voltage and charging time module are obtained, when obtaining voltage and charging time module for obtaining cell voltage and charging
Between；
Battery temperature module is detected, for detecting battery Current Temperatures；
Charging module is controlled, for controlling whether to charge the battery according to cell voltage and battery temperature；
Charging current module is calculated, charging current module is calculated and is used to calculate charging according to cell voltage and charging time
Electric current；
Calculating and setting charging total time module, calculating and setting charging total time module are used to calculate electricity according to charging current
Simultaneously charging total time is arranged in charging total time that cell voltage is full of.
In order to implement a kind of above-mentioned charging adapter automatic adjusument charging time method, the present invention also designs a kind of charging
Adapter automatic adjusument charging time system.
Embodiment three, a kind of charging adapter automatic adjusument charging time system.
Fig. 1 is a kind of functional block diagram of charging adapter automatic adjusument charging time system of the present invention, as shown in Figure 1,
A kind of charging adapter automatic adjusument charging time system, including battery, USB interface, charge IC and MCU control unit, USB
Interface and charging IC are connected as charging IC power supply, and charging IC and battery are connected as battery and charge and detect battery temperature, MCU control
Unit connects battery to acquire cell voltage, and MCU control unit is also connect to detect charging current, MCU control with the USB interface
Unit processed also connect control charging IC charging with the charging IC.MCU control unit further includes D A switch module, and D/A turns
The output end of input terminal connection battery of block is changed the mold to acquire the cell voltage.MCU control unit has enabled foot, MCU control
Unit processed enables the foot connection charging enable end IC to open charging IC charging, and charging IC has charged state foot, MCU control unit
The charged state of charging IC is obtained by connection charging IC charged state foot.MCU control unit further includes timing module, timing
Module is according to cell voltage and charging current setting starting timing module.
MCU control unit be periodically detected USB interface whether have it is outer be electrically accessed, detection battery whether there is, and whether battery
Be full of, when detected it is outer be electrically accessed and have battery, when cell voltage underfill, MCU control unit opens charging enable end, makes
The IC that can charge charges the battery, the charged state of MCU control unit cycle detection charging IC, and MCU control unit timing module is pre-
If time-out time t1, timing module starts timing, and MCU control unit obtains corresponding charging according to cell voltage and charging time
Electric current selects corresponding charging total time t, resets timing module charging total time t, in charging total time t, charging IC is continuous
Battery temperature is detected, if battery temperature is in battery normal range (NR), charging IC charges the battery, if battery temperature exceeds battery
Normal range (NR), then the IC that charges stopping charges the battery until battery recovery normal temperature is reopened and charged the battery, and MCU is controlled
Unit cycle detection cell voltage is opened in the normal situation of battery temperature according to whether cell voltage is full of control charging
And closing；If the charging time, beyond charging total time t, MCU control unit forces control charging IC to stop charging to battery.
Example IV is the battery of 2560mAh, the charging charged using the charging adapter of 900mA with capacity
Journey further describes for specific embodiment.
Fig. 2 is that a kind of charging adapter automatic adjusument charging time system specific embodiment lithium battery of the present invention charged
Journey voltage-time curve figure, as shown in Fig. 2, cell voltage is charged to 3.84V the from 3.7V when battery charge is 900mA
The charging in one stage is similar to linear-charging, and cell voltage is similar to linearly fill from the charging that 3.9V is charged to 4.0V second stage
Electricity, cell voltage are similar to linear-charging from the charging that 4.0V is charged to the 4.1V phase III, i.e. the voltage change Δ U of battery with fill
Electric time Δ t is directly proportional.According to the voltage change Δ U of charging time Δ t and battery, the speed v of charging is obtained.
Charging rate v=cell voltage difference Δ U/ charging time Δ t (1)
The battery of 2500mAh is filled according to the charging adapter that first stage 900mA can be calculated in formula (1)
The charging rate of electricity
v900=(Ue-Us)/(t1-t0)=(3840-3700)/(33.5-18)=9.03mV/min.
Similarly, it can be tested out by experiment and use 1300mA, 1200mA, 1100mA, 1000mA in the first stage,
The corresponding charging rate v of 900mA, 800mA, 700mA, 600mA, 500mA, 400mA, 300mA charging adapter charging1300,
v1200, v1100, v1000, v900, v800, v700, v600, v500, v400, v300.Test obtains 1300mA, 1200mA, 1100mA simultaneously,
The corresponding time-out time of 1000mA, 900mA, 800mA, 700mA, 600mA, 500mA, 400mA, 300mA charging adapter charging
Value T1300, T1200, T1100, T1000, T900, T800, T700, T600, T500, T400, T300.
Same method can obtain second stage by testing test, use different electric currents to charge in the phase III
Charging rate corresponding to adaptor charge and corresponding timeout value.
It uses capacity for the battery of 2560mAh, is charged respectively using different charging currents, obtain each charging stage
Test data of experiment, it is as shown in the table:
According to the charging rate and charging current of upper table you can get it different charging stages.
Fig. 3 is a kind of charging adapter automatic adjusument charging time system specific embodiment charging rate detection of the present invention
Flow chart starts timing as shown in figure 3, MCU control unit constantly detects the charged state of charging IC and the voltage value of battery
Device, presetting time-out time is 2 hours, when detecting that charging starts and cell voltage is lower than 3.7V, starts to detect charging rate,
When cell voltage is greater than 3.7V, start timing, cycle detection cell voltage is greater than 3.84V until cell voltage, stops charging
Velocity measuring；Then charging rate v is calculated using above-mentioned formula (1), an immediate charging rate value is matched according to v value
vxIf vx=45Mv/min, then vxIt is approximately equal to v900, then can determine that the charging current of charging adapter is 900mA,
The charger charging time-out of 900mA should correspond to T900=227min total time, i.e., time-out should be set as 227 points total time
Clock, because being the charging rate detected in the first stage, reseting time-out time should be T=T900-T1-T0,
Wherein T0=18min, T1=15.83min, then T=227-18-15.83=193.17min.
The above are the implementations of the first detection-phase, however actual user can might not wait battery capacities all to use
It is complete to recharge, it is initially inserted into dispatch from foreign news agency charging when cell voltage is greater than 3.7V and is less than 3.9V, the second inspection will be executed at this time
The process in survey stage, it is also possible to be initially inserted into dispatch from foreign news agency charging when cell voltage is greater than 3.9V and is less than 4.0V, will execute at this time
The process of third detection-phase.
In the second detection-phase, MCU control unit constantly detects the charged state of charging IC and the voltage value of battery, starting
Timer, presetting time-out time is 2 hours, when detecting that charging starts and cell voltage is higher than 3.9V, starts detection charging
Speed starts timing, and cycle detection cell voltage is greater than 4.18V until cell voltage, stops charging rate detection；Then it uses
Above-mentioned formula (1) calculates charging rate v, matches an immediate charging rate value v according to v valuexIf vx=45Mv/min,
Then vxIt is approximately equal to v900, then can determine that the charging current of charging adapter is 900mA, the charger charging time-out of 900mA is total
Time should correspond to T900=227min, i.e., time-out should be set as 227 minutes total time, because being detected in the phase III
The charging rate arrived, so reseting time-out time should be
T=T900-T0-T1-T11-T2,
Wherein T0=18min, T1=15.83min, T11=21.17min, T2=47.07min,
Then T=227-18-15.83-21.17-47.07=124.93min.
In third detection-phase, MCU control unit constantly detects the charged state of charging IC and the voltage value of battery, starting
Timer, presetting time-out time is 2 hours, when detecting that charging starts and cell voltage is higher than 4.0V, starts detection charging
Speed starts timing, and cycle detection cell voltage is greater than 4.0V until cell voltage, stops charging rate detection；Then it uses
Above-mentioned formula (1) calculates charging rate v, matches an immediate charging rate value v according to v valuexIf vx=45Mv/min,
Then vxIt is approximately equal to v900, then can determine that the charging current of charging adapter is 900mA, the charger charging time-out of 900mA is total
Time should correspond to T900=227min, i.e., time-out should be set as 227 minutes total time, because being detected in second stage
The charging rate arrived, so reseting time-out time should are as follows:
T=T900-T0-T1-T11-T2-T3,
Wherein T0=18min, T1=15.83min, T11=21.17min, T2=47.07min, T3=42.33mim, then
T=227-47.07=82.6min.
When user cell voltage be greater than 4.0V in the case where start to charge, the condition of three detection-phases is not satisfied,
Time-out time can not be accurately calculated, so using 2 hours time-out times of default setting.It was verified that when 2 hours time-out
Between not will lead to over-charging of battery and cause deflagration accident.
It is 3 different inspections in order to guarantee in the case where the charging of the minimum current of 300mA that default time-out time, which is 2 hours,
The survey stage can efficiently accomplish detection.
It is to be illustrated to preferable implementation of the invention, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (9)
1. a kind of charging adapter automatic adjusument charging time method, which is characterized in that the method includes the steps:
S1 obtains cell voltage, obtains the charging time；
S2, experiment test obtains charging current, cell voltage and charging time relationship and corresponds to table, using different charging currents pair
Battery charges, and obtains each charging current table corresponding with the relationship in charging time, cell voltage, the charging current, battery
It is to divide multiple voltages according to battery charging voltage and charging time linear relationship characteristic that voltage and charging time relationship, which correspond to table,
Charging current, cell voltage and the charging time relationship in section correspond to table, according to the collected cell voltage of step S1 and acquisition
The charging time arrived obtains corresponding charging current；
Charging total time t is arranged according to charging current in S3.
2. a kind of charging adapter automatic adjusument charging time method according to claim 1, which is characterized in that described
Step S1 further includes sub-step:
S11 acquires battery current voltage, if battery underfill, detects battery temperature；
S12 starts to charge the battery if battery temperature is normal, constantly detection cell voltage, and start timing obtain charging when
Between.
3. a kind of charging adapter automatic adjusument charging time method according to claim 2, which is characterized in that described
Step S3 includes sub-step:
S31 according to charging current, and corresponds to table according to charging current and charging time relationship and cell voltage is calculated full of institute
The total charging time needed, setting charging total time t；
S32 constantly detects the temperature and cell voltage of battery, according to battery temperature and cell voltage control in charging total time t
System charging opens and closes, if battery charge time beyond charging total time t, is forced to stop charging.
4. a kind of charging adapter automatic adjusument charging time method according to claim 3, which is characterized in that described
Step S32 includes sub-step:
S321 constantly detects the temperature of battery in charging total time t, when battery temperature exceeds the chargeable temperature model of battery
When enclosing, stop reopening charging until after the chargeable temperature of battery temperature recovery to battery charging；
S322, when battery temperature is in the chargeable temperature range of battery, constantly detects battery electricity in charging total time t
Pressure, judges whether battery is full of, if battery is full of, charge closing.
5. a kind of charging adapter automatic adjusument charging time device, which is characterized in that it includes when obtaining voltage and charging
Between module, calculate charging current module, calculating and setting charge total time module, the acquisition voltage and charging time module are used for
Cell voltage and charging time are obtained, the calculating charging current module obtains charging current, cell voltage for testing test
Table is corresponded to charging time relationship, is charged the battery using different charging currents, when obtaining each charging current and charging
Between, the relationship of cell voltage correspond to table, it is to be filled according to battery that the charging current, cell voltage and charging time relationship, which correspond to table,
Piezoelectric voltage and charging time linear relationship characteristic divide charging current, cell voltage and the charging time relationship of multiple voltage ranges
Corresponding table according to the acquisition voltage and charging time module collected cell voltage and charging time for getting, is obtained
Corresponding charging current, the calculating and setting charging total time module are used to calculate what cell voltage was full of according to charging current
Simultaneously charging total time is arranged in charging total time.
6. a kind of charging adapter automatic adjusument charging time system, is used to implement as described in any one of Claims 1-4
A kind of charging adapter automatic adjusument charging time method, which is characterized in that it includes battery；
USB interface, USB interface and charging IC are connected as charging IC power supply；
Charge IC, and charging IC and the battery are connected as the battery and charge and detect battery temperature；
MCU control unit, MCU control unit are connect to acquire the cell voltage with the battery, MCU control unit also with institute
USB interface connection is stated to detect charging current, MCU control unit also connect control charging IC charging with the charging IC, described
MCU control unit is also used to test test acquisition charging current, cell voltage and charging time relationship and corresponds to table, using different
Charging current charges the battery, and obtains each charging current table corresponding with the relationship in charging time, cell voltage, the charging
It is to be divided according to battery charging voltage and charging time linear relationship characteristic that electric current, cell voltage and charging time relationship, which correspond to table,
Charging current, cell voltage and the charging time relationship of multiple voltage ranges correspond to table, according to collected cell voltage and obtain
The charging time got obtains corresponding charging current.
7. a kind of charging adapter automatic adjusument charging time system according to claim 6, which is characterized in that described
MCU control unit further includes D A switch module, and the input terminal of the D A switch module connects the output end of the battery
To acquire the cell voltage.
8. a kind of charging adapter automatic adjusument charging time system according to claim 7, which is characterized in that described
MCU control unit, which has, enables foot, and the MCU control unit enables the foot connection charging enable end IC and charged with opening charging IC,
The charging IC has charged state foot, and the MCU control unit obtains charging IC by connection charging IC charged state foot
Charged state.
9. a kind of charging adapter automatic adjusument charging time system according to claim 6, which is characterized in that described
MCU control unit further includes timing module, and the timing module is according to cell voltage and charging current setting starting timing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710010961.4A CN106786954B (en) | 2017-01-06 | 2017-01-06 | A kind of charging adapter automatic adjusument charging time device, system and method |
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| CN201710010961.4A CN106786954B (en) | 2017-01-06 | 2017-01-06 | A kind of charging adapter automatic adjusument charging time device, system and method |
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| CN109149673A (en) * | 2017-06-27 | 2019-01-04 | 中国移动通信有限公司研究院 | A kind of method, charger, server and system for realizing charging |
| WO2021114683A1 (en) * | 2019-12-09 | 2021-06-17 | 超威电源集团有限公司 | Charger and charging method therefor |
| CN114336843B (en) * | 2021-12-28 | 2024-06-07 | 歌尔科技有限公司 | Chargeable terminal equipment and charging system thereof |
| CN114301140B (en) * | 2021-12-31 | 2023-12-01 | 福建新大陆支付技术有限公司 | POS-based battery charging management method |
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