CN106532882B - A kind of charge control method and device - Google Patents
A kind of charge control method and device Download PDFInfo
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- CN106532882B CN106532882B CN201611027387.5A CN201611027387A CN106532882B CN 106532882 B CN106532882 B CN 106532882B CN 201611027387 A CN201611027387 A CN 201611027387A CN 106532882 B CN106532882 B CN 106532882B
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000007600 charging Methods 0.000 claims abstract description 62
- 238000010277 constant-current charging Methods 0.000 claims description 18
- 238000010280 constant potential charging Methods 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 13
- 230000003247 decreasing effect Effects 0.000 claims description 5
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- 238000010586 diagram Methods 0.000 description 9
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- 230000004048 modification Effects 0.000 description 5
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- 230000009467 reduction Effects 0.000 description 5
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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
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
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- H02J7/045—
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to charging technique fields, more particularly to a kind of charge control method and device, the device includes two charge controlling chips, adapter and processor, wherein, first charge controlling chip and the second charge controlling chip are connected in parallel, processor obtains the voltage of battery and the temperature of temperature, the first charge controlling chip and the second charge controlling chip respectively, and according to the temperature of the voltage of battery and temperature, the first charge controlling chip and the second charge controlling chip, controls the first charge controlling chip and the second charge controlling chip charges to the battery.In this way, the charging to battery is controlled according to the temperature and voltage that detect, solve the problems, such as that charging causes terminal temperature excessively high in the prior art, improve the usage experience of user, the embodiment of the present invention is suitable for end cell fast charge equipment, quick charge can be carried out to the battery of terminal, it is high with power, speed is fast, temperature-controllable advantage.
Description
Technical field
The present invention relates to charging technique field more particularly to a kind of charge control methods and device.
Background technique
Currently, terminal using more and more extensive, enhance the ability that user obtains information, realizing user can be used
Terminal handles various affairs whenever and wherever possible, it has also become indispensable a part in life.Also, the data of terminal transmit speed
Rate, the processing speed of chip are all greatly promoted, and correspondingly, the power consumption of terminal can also be promoted, therefore, for the continuation of the journey for guaranteeing terminal
The rapid nitriding of time, terminal become a research hotspot.
Under the prior art, fast charge method generallys use the charging unit of two charge controlling chip parallel connections to carry out
Charging.
But the fast charge method under the prior art, in constant-current charging phase, the maximum current pair that can be born with battery
Battery charges, and charge controlling chip fever at this time is serious, so that the temperature of terminal is excessively high, this results in terminal to be likely to occur
Security risk, and generate unhealthy emotion at heart when user's contact terminal or even fear, affect user experience.
Summary of the invention
The embodiment of the present invention provides a kind of charge control method and device, leads to terminal temperature to solve charging in the prior art
The problem of spending height, affecting user experience.
Specific technical solution provided in an embodiment of the present invention is as follows:
A kind of battery charge controller, including two charge controlling chips, adapter and processor, wherein
First charge controlling chip is connected with the input terminal of the output end of the adapter and battery respectively；
Second charge controlling chip is connected with the input terminal of the output end of the adapter and battery respectively；Wherein, described
Second charge controlling chip and first charge controlling chip are connected in parallel；
Processor is connected, for obtaining battery respectively respectively with the first charge controlling chip and the second charge controlling chip
Voltage and temperature, the first charge controlling chip and the second charge controlling chip temperature, and according to the voltage of the battery and
The temperature of temperature, the first charge controlling chip and the second charge controlling chip controls first charge controlling chip and described
Second charge controlling chip charges to the battery.
Preferably, obtaining the voltage and temperature, the first charge controlling chip and the second charge controlling chip of battery respectively
Before temperature, the processor further comprises:
Determination unit, for determining that adapter is access state and adapter supports fast charge mode.
Preferably, control first charge controlling chip and second charge controlling chip fill the battery
When electric, the processor is specifically included:
Pre-charge control unit, for determining the voltage of battery not less than the first preset threshold and less than the second preset threshold
When, the second charge controlling chip of control does not work and the first charge controlling chip enters pre-charging stage, and controls the first charging
Control chip charges to the battery with preset pre-charge current, and control adapter exports the first predeterminated voltage；
Constant-current charge control unit, for determining the voltage of battery not less than the second preset threshold and being less than the default threshold of third
When value, controls the first charge controlling chip and the second charge controlling chip enters constant-current charging phase, and control the first charging control
Coremaking piece is with the first preset maximum current and the second charge controlling chip with the second preset maximum current simultaneously to the electricity
Pond is charged, and control adapter output meet battery can be preset with the described first preset maximum current and second
The maximum voltage that the sum of maximum current charges；
Constant-voltage charge control unit, for determining the voltage of battery not less than third predetermined threshold value and less than the 4th default threshold
When value, controls the first charge controlling chip and the second charge controlling chip enters constant voltage charging phase, and control the first charging control
Coremaking piece and the second charge controlling chip simultaneously charge to the battery with preset constant voltage, and control adapter
The voltage of output is gradually decreased according to default rule, until being reduced to the second predeterminated voltage.
Preferably, further comprising: mainboard, wherein the mainboard is for carrying the first control chip, described second
Control chip and the processor；
The processor further comprises,
Temperature unit is controlled, is used for:
In constant-current charging phase, the first temperature of the first charge controlling chip, the second charge controlling chip are obtained respectively
4th temperature of second temperature, the third temperature of mainboard and battery；
Determine that first temperature, second temperature, third temperature and the 4th temperature meet the warm condition of preset limit and continue
When the first preset time, controls the first charge controlling chip and the second charge controlling chip enters control temperature stage；
Controlling the first charge controlling chip and reducing charging current is the first electric current, the second charge controlling chip reduction charging electricity
Stream is the second electric current, adapter reduction output voltage is first voltage；Wherein, the first electric current, the second electric current and first voltage are full
Foot makes the first charge controlling chip and the second charge controlling chip that can reach highest working efficiency under first voltage.
Preferably, constant-voltage charge control unit, is further used for:
Determine that adapter is reduced to the second predeterminated voltage, and the first charge controlling chip or the second charge controlling chip reach
When highest working efficiency, any one charge controlling chip in the first charge controlling chip and the second charge controlling chip is controlled
It does not work, and the continuation of another charge controlling chip charges to the battery with the preset constant voltage.
Preferably, the processor, further comprises, end unit is used for:
When determining the voltage of battery less than the first preset threshold, the first charge controlling chip and the second charge control core are controlled
Piece does not work；Or,
In constant voltage charging phase, when determining the electric current to charge to the battery less than preset minimum current, control first
Charge controlling chip and the second charge controlling chip do not work, and terminate charging
A kind of charge control method, comprising:
The voltage of battery and the temperature of temperature, the first charge controlling chip and the second charge controlling chip are obtained respectively；
According to the temperature of the voltage of the battery and temperature, the first charge controlling chip and the second charge controlling chip, control
It makes first charge controlling chip and second charge controlling chip charges to the battery.
Preferably, obtaining the voltage and temperature, the first charge controlling chip and the second charge controlling chip of battery respectively
Before temperature, further comprise:
Determine that adapter is access state and adapter supports fast charge mode.
Preferably, control first charge controlling chip and second charge controlling chip fill the battery
When electric, specifically include:
When determining the voltage of battery not less than the first preset threshold and less than the second preset threshold, the second charge control is controlled
Chip does not work and the first charge controlling chip enters pre-charging stage, and controls the first charge controlling chip with preset preliminary filling
Electric current charges to the battery, and control adapter exports the first predeterminated voltage；Or,
Determine that the voltage of battery not less than the second preset threshold and when being less than third predetermined threshold value, controls the first charge control
Chip and the second charge controlling chip enter constant-current charging phase, and control the first charge controlling chip with the first preset maximum
Electric current and the second charge controlling chip simultaneously charge to the battery with the second preset maximum current, and control adaptation
Device output meets what battery can be charged with the sum of the described first preset maximum current and the second preset maximum current
Maximum voltage；Or,
When determining the voltage of battery not less than third predetermined threshold value and less than four preset thresholds, the first charge control is controlled
Chip and the second charge controlling chip enter constant voltage charging phase, and control the first charge controlling chip and the second charge control core
Piece simultaneously charges to the battery with preset constant voltage, and the voltage that control adapter exports is according to default rule
It gradually decreases, until being reduced to the second predeterminated voltage.
Preferably, further comprising:
In constant-current charging phase, the first temperature of the first charge controlling chip, the second charge controlling chip are obtained respectively
4th temperature of second temperature, the third temperature of mainboard and battery；
Determine that first temperature, second temperature, third temperature and the 4th temperature meet the warm condition of preset limit and continue
When the first preset time, controls the first charge controlling chip and the second charge controlling chip enters control temperature stage；
Controlling the first charge controlling chip and reducing charging current is the first electric current, the second charge controlling chip reduction charging electricity
Stream is the second electric current, adapter reduction output voltage is first voltage；Wherein, the first electric current, the second electric current and first voltage are full
Foot makes the first charge controlling chip and the second charge controlling chip that can reach highest working efficiency under first voltage.
Preferably, further comprising:
Determine that adapter is reduced to the second predeterminated voltage, and the first charge controlling chip or the second charge controlling chip reach
When highest working efficiency, any one charge controlling chip in the first charge controlling chip and the second charge controlling chip is controlled
It does not work, and the continuation of another charge controlling chip charges to the battery with the preset constant voltage.
Preferably, further comprising:
When determining the voltage of battery less than the first preset threshold, the first charge controlling chip and the second charge control core are controlled
Piece does not work；Or,
In constant voltage charging phase, when determining the electric current to charge to the battery less than preset minimum current, control first
Charge controlling chip and the second charge controlling chip do not work, and terminate charging.
The technical effect of the embodiment of the present invention is as follows:
In the embodiment of the present invention, including two charge controlling chips, adapter and processor, wherein the first charging control
Coremaking piece and the second charge controlling chip are connected in parallel, and processor obtains the voltage and temperature, the first charge control of battery respectively
The temperature of chip and the second charge controlling chip, and filled according to the voltage of battery and temperature, the first charge controlling chip and second
The temperature of electric control chip, controls the first charge controlling chip and second charge controlling chip fills the battery
Electricity.In this way, processor controls the charging to the battery of terminal according to the temperature and voltage that detect, solve in the prior art
The problem of charging causes terminal temperature excessively high, terminal is caused to be likely to occur security risk, improve the usage experience of user, this hair
Bright embodiment is suitable for end cell fast charge equipment, can carry out quick charge to the battery of terminal, has power high, fast
Spend fast, temperature-controllable advantage.
Detailed description of the invention
Fig. 1 is battery charge controller schematic diagram in the embodiment of the present invention；
Fig. 2 is the schematic diagram of processor in battery charge controller in the embodiment of the present invention；
Fig. 3 is charge control method flow diagram in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, is not whole embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Lead to that terminal temperature is excessively high, affects user experience to solve the problems, such as to charge in the prior art, the present invention
In embodiment, including two charge controlling chips and processor, also, processor is according to the voltage and temperature of battery, above-mentioned two
The voltage and temperature of a charge controlling chip control above-mentioned two charge controlling chip and charge the battery.
The present invention program is described in detail below by specific embodiment, certainly, the present invention is not limited to following realities
Apply example.
Embodiment one:
As shown in fig.1, in the embodiment of the present invention, battery charge controller, including two charge controlling chips, adapter with
And processor, wherein
First charge controlling chip 10, is connected with the input terminal of the output end of adapter 13 and battery respectively；
Second charge controlling chip 11, is connected with the input terminal of the output end of adapter 13 and battery respectively；Wherein, described
Second charge controlling chip 11 and first charge controlling chip 10 are connected in parallel；
Processor 12 is connected, for obtaining respectively respectively with the first charge controlling chip 10 and the second charge controlling chip 11
The voltage of battery and the temperature of temperature, the first charge controlling chip 10 and the second charge controlling chip 11 are taken, and according to the electricity
The temperature of the voltage and temperature in pond, the first charge controlling chip 10 and the second charge controlling chip 11 controls first charging
Control chip 10 and second charge controlling chip 11 charge to the battery.
It is worth noting that processor 12 passes through I2C and the first charge controlling chip 10 and the second charge controlling chip 11
Connection communication.Also, the first charge controlling chip 10 and the second charge controlling chip 11 and adapter 13 can by D+, D- or
It is electric current pattern communication.
Further, in the embodiment of the present invention, battery charge controller is not limited in including two charge controlling chips, also
May include multiple charge controlling chips, for example, three, four etc., still, in order to avoid increase increase caused by chip at
This problem of, preferably, using two charge controlling chips.
Further, battery charge controller further include: mainboard, wherein the mainboard is for carrying the first charge control
Chip 10, the second charge controlling chip 11 and processor 12.
Further, the voltage and temperature, the first charge controlling chip 10 and the second charge control core of battery are obtained respectively
Before the temperature of piece 11, the processor 12, further includes:
Determination unit 120, for determining that adapter 13 is access state and adapter 13 supports fast charge mode.
That is, initially to judge whether adapter 13 is access state, works as adapter in the embodiment of the present invention
After 13 connect with terminal, the type of adapter 13 and the charge protocol of support are obtained, that is, judges whether adapter 13 is supported quickly
Charge mode both may be used when determining that adapter 13 does not support fast charge mode with regard to directly carrying out common charging.
Also, after adapter 13 is connect with terminal, the maximum current limit value Ibusmax of adapter 13 can be also obtained, with
Just the output electric current of subsequent control adapter 13.
For example, in embodiments of the present invention, battery charge controller input ac voltage range: 3-20V, input current are maximum
Value 5A exports DC voltage range 3.8-4.6V, maximum output current 10A.
Embodiment two:
As shown in fig.2, being described in detail based on embodiment one, processor 12 can be based on the various voltages got
And temperature information, it controls first charge controlling chip 10 and second charge controlling chip 11 fills the battery
Electricity.Specifically, the processor 12, comprising:
Pre-charge control unit 121, the voltage for determining battery are not less than the first preset threshold and default less than second
When threshold value, the second charge controlling chip 11 of control does not work and the first charge controlling chip 10 enters pre-charging stage, and controls
First charge controlling chip charges to the battery with preset pre-charge current, and control adapter 13 output first
Predeterminated voltage.
Wherein, the first predeterminated voltage is the minimum voltage of adapter 13.
For example, the voltage of battery is Ubat, the first preset threshold is Upre, and the second preset threshold is Ucc, the first default electricity
Pressure is Ubusmin, pre-charge current Ipre, then as Upre≤Ubat < Ucc, into pre-charging stage, processor 12 is controlled
Second charge controlling chip 11 does not work, and the first charge controlling chip 10 is communicated with adapter 13, and the output of adapter 13 first is pre-
If voltage Ubusmin, the first charge controlling chip 10 exports pre-charge current Ipre, i.e., the first charge controlling chip 10 is right at this time
Battery charges, and the electric current of the charging of battery is Ipre.
Constant-current charge control unit 122, the voltage for determining battery are not less than the second preset threshold and pre- less than third
If when threshold value, controlling the first charge controlling chip 10 and the second charge controlling chip 11 and entering constant-current charging phase, and control the
One charge controlling chip 10 is with the first preset maximum current and the second charge controlling chip 11 is with the second preset maximum current
Charge simultaneously to the battery, and the control output of adapter 13 meet battery can be with the described first preset maximum electricity
The maximum voltage that the sum of stream and the second preset maximum current charges.
For example, third predetermined threshold value is Ucv, the first preset maximum current is Ibatmax1, the second preset maximum electricity
Stream is Ibatmax2, then when the voltage Ubat of battery meets Ucc≤Ubat < Ucv, the first charge controlling chip 10 and second fills
Electric control chip 11 all enters constant-current charging phase, works at the same time, the first charge controlling chip 10 and the second charge controlling chip
11 communicate with adapter 13 respectively, and the output of adapter 13 meets the voltage value Ubusmax that battery is charged with maximum current, fit at this time
The electric current Ibusx that orchestration 13 exports is less than or equal to its maximum current limit value Ibusmax.That is the first charge controlling chip 10 at this time
It is all charged the battery with the second charge controlling chip 11, and the electric current of the charging of battery is Ibatmax1+Ibatmax2.
For example, the first preset maximum current Ibatmax1 of the first charge controlling chip 10 output is 3A, the second charging
Controlling the second preset maximum current Ibatmax2 that chip 11 exports is 3A, then the charging current of battery is maximum value at this time
Ibatmax is 6A.
Constant-voltage charge control unit 123, the voltage for determining battery are not less than third predetermined threshold value and pre- less than the 4th
If when threshold value, controlling the first charge controlling chip 10 and the second charge controlling chip 11 and entering constant voltage charging phase, and control the
One charge controlling chip 10 and the second charge controlling chip 11 simultaneously charge to the battery with preset constant voltage, with
And the voltage that control adapter 13 exports is gradually decreased according to default rule, until being reduced to the second predeterminated voltage.
Wherein, the second predeterminated voltage here can also be configured in advance, or the minimum voltage of adapter 13.
For example, the 4th preset threshold is Uf, preset constant voltage is Ureg, then when the voltage Ubat of battery meets Ucv
When≤Ubat < Uf, the first charge controlling chip 10 and the second charge controlling chip 11 all enter constant voltage charging phase, the first charging
Control chip 10 and the second charge controlling chip 11 and export constant voltage Ureg, also, as charging progresses, adapter 13 by
Decrescence small output voltage Ubus can be such that the two charge controlling chip working efficiencies improve in this way.
It is worth noting that the first charge controlling chip 10 and the second charge controlling chip 11 are defeated in constant voltage charging phase
Electric current out can gradually decrease.
Embodiment three:
As shown in fig.2, on the basis of the above embodiments, in constant-current charging phase, the embodiment of the present invention, no longer always
It is charged with the maximum current that battery is able to bear to it, but, it joined control temperature unit 124, enable to charge
Chip is controlled in the switching of high-power and high efficiency two states, controls the temperature of terminal.
In constant-current charging phase, the processor 12 further includes controlling temperature unit 124, being used for:
In constant-current charging phase, the first temperature, the second charge controlling chip of the first charge controlling chip 10 are obtained respectively
4th temperature of 11 second temperature, the third temperature of mainboard and battery；
Determine that first temperature, second temperature, third temperature and the 4th temperature meet the warm condition of preset limit and continue
When the first preset time, controls the first charge controlling chip 10 and the second charge controlling chip 11 enters control temperature stage；
It controls the first charge controlling chip 10 and reduces charging current and reduced for the first electric current, the second charge controlling chip 11 and fill
Electric current is the second electric current, the reduction output voltage of adapter 13 is first voltage；Wherein, the first electric current, the second electric current and first
Voltage meets so that the first charge controlling chip 10 and the second charge controlling chip 11 can reach most senior engineer under first voltage
Make efficiency.
It is worth noting that being therefore, to control temperature list for the temperature of controlling terminal entirety in the embodiment of the present invention
Member 124, not only needs to obtain the temperature of the first charge controlling chip 10, the second charge controlling chip 11 and battery, it is also necessary into
One step obtains the temperature of mainboard, and certainly, here, the embodiment of the present invention is simultaneously not limited, and can according to need and obtains terminal not
With the temperature of component, and then achieve the effect that controlling terminal bulk temperature.
Wherein, the warm condition of preset limit can be set in advance, for example, first respectively to the first charge controlling chip 10,
Corresponding temperature threshold is arranged in second charge controlling chip 11, mainboard and battery, and the warm condition of preset limit can be at least pre-
If the temperature of number is more than its corresponding temperature threshold.
For example, the first temperature T1 of this chip of the temperature detecting module real-time detection of the first charge controlling chip 10, second
The second temperature T2 of this chip of the temperature detecting module real-time detection of charge controlling chip 11, and T1, T2 are sent to processor
12, at the same the third temperature T3 of the temperature detecting module real-time detection mainboard of mainboard, the temperature detecting module real-time detection of battery
4th temperature Tbat of battery, and temperature T3, Tbat is sent to processor 12；
When the combination of T1, T2, T3 and Tbat meet the warm condition of preset limit, and continue the first preset time T pried1,
Into control temperature stage；
It is first voltage Ubusc, the first charge controlling chip 10 and the second charge control that adapter 13, which reduces output voltage,
Chip 11 reduces that charging current is the first electric current Ibatc1 (for example, being 1.5A) and the second electric current Ibatc2 is (for example, respectively
1.5A), also, Ubusc and Ibatc1, Ubusc and Ibatc2 make the first charge controlling chip 10 and the second charge control core
Piece 11 works in the highest working efficiency of Ubusc.
Further, when the combination of T1, T2, T3 and Tbat are unsatisfactory for the warm condition of preset limit, and continue second it is default when
Between Tpried2 when, reenter constant-current charging phase, it may be assumed that 13 output voltage Ubusmax of adapter, the first charge controlling chip
10 output Ibatmax1, the second charge controlling chip 11 export Ibatmax2, and the charging current of battery is maximum value at this time
Ibatmax。
Example IV:
As shown in fig.2, based on the above embodiment, in constant voltage charging phase, the voltage that adapter 13 exports is gradually decreased,
The working efficiency of first charge controlling chip 10 and the second charge controlling chip 11 can be gradually increased, to further increase charging
Efficiency, in the embodiment of the present invention, constant-voltage charge control unit 123 is further used for:
Determine that adapter 13 is reduced to the second predeterminated voltage, and the first charge controlling chip 10 or the second charge controlling chip
11 when reaching highest working efficiency, controls any one in the first charge controlling chip 10 and the second charge controlling chip 11 and fills
Electric control chip does not work, and the continuation of another charge controlling chip fills the battery with the preset constant voltage
Electricity.
Wherein, it does not work preferably, controlling the wherein lower charge controlling chip of working efficiency, further improves charging
Efficiency.
Embodiment five:
As shown in fig.2, based on the above embodiment, the processor 12 further comprises that end unit 125 is used for:
When determining the voltage of battery less than the first preset threshold, the first charge controlling chip 10 and the second charge control are controlled
Chip 11 does not work；Or,
In constant voltage charging phase, when determining the electric current to charge to the battery less than preset minimum current, control first
Charge controlling chip 10 and the second charge controlling chip 11 do not work, and terminate charging.
For example, for the first case, when the voltage Ubat of battery meets Ubat < Upre, illustrating at this point, battery mistake
It puts, brownout, then the first charge controlling chip 10 and the second charge controlling chip 11 do not work.
For second situation, can be gradually decreased in the charging current of constant voltage charging phase, battery, as charging current Ibat
When meeting Ibat < Ifi, illustrates that charging is completed, close all charge controlling chips, terminate charging.
Embodiment six:
Referring particularly to shown in Fig. 3, in the embodiment of the present invention, the implementation procedure of charge control method is specific as follows:
S300: start.
S301: judge whether adapter 13 is access state, if so, thening follow the steps S302, otherwise, then follow the steps
S301。
S302: judge 13 type of adapter, if support fast charge mode, if so, S304 is thened follow the steps, otherwise,
Then follow the steps S303.
S303: it is commonly charged.
S304: detecting the voltage of battery, according to the difference of voltage, determines the charging stage, if pre-charging stage, then executes
Step S305 thens follow the steps S308 if constant-current charging phase, if constant voltage charging phase, thens follow the steps S314.
S305: enter pre-charging stage.
S306: adapter exports the first predeterminated voltage Ubusmin, and the first charge controlling chip 10 exports pre-charge current
Ipre。
S307: judging whether the voltage Ubat of battery, the voltage of battery are not less than the second preset threshold, i.e. Ucc≤Ubat,
If so, thening follow the steps S308, otherwise, S306 is thened follow the steps.
S308: enter constant-current charging phase.
S309: 13 output HIGH voltage Ubusmax of adapter, the first charge controlling chip 10 and the second charge controlling chip 11
The first preset preset maximum current Ibatmax2 of maximum current Ibatmax1 and second is exported respectively.
S310: judging whether the voltage of battery, the voltage of battery are not less than third predetermined threshold value, i.e. Ucv≤Ubat, if
It is to then follow the steps S314, otherwise, thens follow the steps S311.
S311: judge temperature, if to enter control temperature stage, the temperature T1 of the first charge controlling chip 10, second
Whether the temperature Tbat of the temperature T2 of charge controlling chip 11, the temperature T3 of mainboard and battery meet the warm condition of preset limit, if
It is to then follow the steps S312, otherwise, executes step S309.
S312: enter temperature controlling stages.
S313: it is first voltage Ubusc, the first charge controlling chip 10 and the second charging that adapter 13, which reduces output voltage,
It is the first electric current Ibatc1 and the second electric current Ibatc2 that control chip 11 reduces charging current respectively, and executes step S310.
Wherein, the first electric current, the second electric current and first voltage meet so that the first charge controlling chip and the second charging control
Coremaking piece can reach highest working efficiency under first voltage.
S314: enter constant voltage charging phase.
S315: the first charge controlling chip 10 and the second charge controlling chip 11 export constant voltage Ureg, adapter 13
It is gradually reduced output voltage Ubus, improves the efficiency of charge controlling chip work.
S316: judging whether that the voltage of adapter 13 can not reduce, i.e., the voltage drop of adapter 13 is as low as the second default electricity
Pressure, and wherein any one output electric current of the first charge controlling chip 10 and the second charge controlling chip 11 reaches highest work
Make efficiency, if so, thening follow the steps S317, otherwise, thens follow the steps S315.
S317: closing wherein any one charge controlling chip, carries out single-chip charging.
S318: judging that the charging current of battery reaches the electric current for stopping charging, i.e., is less than to the electric current of battery charging default
Minimum current Ibat < Ifi otherwise, then follow the steps S317 if so, thening follow the steps S319.
S319: charge closing controls chip, charging complete.
S320: terminate.
In conclusion in the embodiment of the present invention, including two charge controlling chips, adapter and processor, wherein the
One charge controlling chip and the second charge controlling chip are connected in parallel, and processor obtains the voltage and temperature, first of battery respectively
The temperature of charge controlling chip and the second charge controlling chip, and according to the voltage of battery and temperature, the first charge controlling chip
With the temperature of the second charge controlling chip, the first charge controlling chip and second charge controlling chip are controlled to the battery
It charges.In this way, processor controls the charging to the battery of terminal according to the temperature and voltage that detect, solve existing
The problem of charging causes terminal temperature excessively high, terminal is caused to be likely to occur security risk in technology, improve user uses body
It tests, the embodiment of the present invention is suitable for end cell fast charge equipment, can carry out quick charge to the battery of terminal, have function
Rate is high, speed is fast, temperature-controllable advantage.
Also, the embodiment of the present invention, by Detection & Controling, in the constant-current charging phase of quick charge, charge control core
Piece can control terminal temperature, and further improve charge efficiency in the switching of high-power and high efficiency two states.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of battery charge controller, which is characterized in that including two charge controlling chips, adapter and processor, wherein
First charge controlling chip is connected with the input terminal of the output end of the adapter and battery respectively；
Second charge controlling chip is connected with the input terminal of the output end of the adapter and battery respectively；Wherein, described second
Charge controlling chip and first charge controlling chip are connected in parallel；
Processor is connected with the first charge controlling chip and the second charge controlling chip respectively, for obtaining the electricity of battery respectively
Pressure and temperature, the temperature of the first charge controlling chip and the second charge controlling chip, and according to the voltage of the battery and temperature,
The temperature of first charge controlling chip and the second charge controlling chip controls first charge controlling chip and described second and fills
Electric control chip charges to the battery；
Wherein, the processor, specifically includes:
Pre-charge control unit, when for determining the voltage of battery not less than the first preset threshold and less than the second preset threshold,
It controls that the second charge controlling chip does not work and the first charge controlling chip enters pre-charging stage, and controls the first charge control
Chip charges to the battery with preset pre-charge current, and control adapter exports the first predeterminated voltage；
Constant-current charge control unit, for determining the voltage of battery not less than the second preset threshold and being less than third predetermined threshold value
When, it controls the first charge controlling chip and the second charge controlling chip enters constant-current charging phase, and control the first charge control
Chip is with the first preset maximum current and the second charge controlling chip with the second preset maximum current simultaneously to the battery
Charge, and control adapter output meet battery can be preset most with the described first preset maximum current and second
The maximum voltage that the sum of high current charges；
Constant-voltage charge control unit, for determining the voltage of battery not less than third predetermined threshold value and less than the 4th preset threshold
When, it controls the first charge controlling chip and the second charge controlling chip enters constant voltage charging phase, and control the first charge control
Chip and the second charge controlling chip simultaneously charge to the battery with preset constant voltage, and control adapter is defeated
Voltage out is gradually decreased according to default rule, until being reduced to the second predeterminated voltage.
2. device as described in claim 1, which is characterized in that obtain the voltage and temperature, the first charge control of battery respectively
Before the temperature of chip and the second charge controlling chip, the processor further comprises:
Determination unit, for determining that adapter is access state and adapter supports fast charge mode.
3. device as described in claim 1, which is characterized in that further comprise: mainboard, wherein the mainboard is for carrying
First charge controlling chip, second charge controlling chip and the processor；
The processor further comprises controlling temperature unit, being used for:
In constant-current charging phase, obtain respectively the first temperature of the first charge controlling chip, the second charge controlling chip second
4th temperature of temperature, the third temperature of mainboard and battery；
Determine that first temperature, second temperature, third temperature and the 4th temperature meet the warm condition of preset limit and continue first
When preset time, controls the first charge controlling chip and the second charge controlling chip enters control temperature stage；
Control the first charge controlling chip reduce charging current be the first electric current, the second charge controlling chip reduce charging current be
It is first voltage that second electric current, adapter, which reduce output voltage,；Wherein, the first electric current, the second electric current and first voltage satisfaction make
Highest working efficiency can be reached under first voltage by obtaining the first charge controlling chip and the second charge controlling chip.
4. device as described in claim 1, which is characterized in that constant-voltage charge control unit is further used for:
Determine that adapter is reduced to the second predeterminated voltage, and the first charge controlling chip or the second charge controlling chip reach highest
Working efficiency when, control in the first charge controlling chip and the second charge controlling chip any one charge controlling chip not work
Make, and the continuation of another charge controlling chip charges to the battery with the preset constant voltage.
5. the device as described in claim 1,3 or 4, which is characterized in that the processor further comprises end unit, is used
In:
When determining the voltage of battery less than the first preset threshold, the first charge controlling chip and the second charge controlling chip are controlled not
Work；Or,
In constant voltage charging phase, determine that control first is charged when being less than preset minimum current to the electric current that the battery charges
Control chip and the second charge controlling chip do not work, and terminate charging.
6. a kind of charge control method characterized by comprising
The voltage of battery and the temperature of temperature, the first charge controlling chip and the second charge controlling chip are obtained respectively；
According to the temperature of the voltage of the battery and temperature, the first charge controlling chip and the second charge controlling chip, institute is controlled
It states the first charge controlling chip and second charge controlling chip charges to the battery；
Wherein, when control first charge controlling chip and second charge controlling chip charge to the battery,
It specifically includes:
When determining the voltage of battery not less than the first preset threshold and less than the second preset threshold, the second charge controlling chip is controlled
It does not work and the first charge controlling chip enters pre-charging stage, and control the first charge controlling chip with preset precharge electricity
Stream charges to the battery, and control adapter exports the first predeterminated voltage；Or,
Determine that the voltage of battery not less than the second preset threshold and when being less than third predetermined threshold value, controls the first charge controlling chip
Enter constant-current charging phase with the second charge controlling chip, and controls the first charge controlling chip with the first preset maximum current
And second charge controlling chip with the second preset maximum current simultaneously charge to the battery, and control adapter it is defeated
Meet the maximum that battery can be charged with the sum of the described first preset maximum current and the second preset maximum current out
Voltage；Or,
When determining the voltage of battery not less than third predetermined threshold value and less than four preset thresholds, the first charge controlling chip is controlled
Enter constant voltage charging phase with the second charge controlling chip, and control the first charge controlling chip and the second charge controlling chip with
Preset constant voltage simultaneously charges to the battery, and control adapter output voltage according to it is default rule gradually
It reduces, until being reduced to the second predeterminated voltage.
7. method as claimed in claim 6, which is characterized in that obtain the voltage and temperature, the first charge control of battery respectively
Before the temperature of chip and the second charge controlling chip, further comprise:
Determine that adapter is access state and adapter supports fast charge mode.
8. method as claimed in claim 6, which is characterized in that further comprise:
In constant-current charging phase, obtain respectively the first temperature of the first charge controlling chip, the second charge controlling chip second
4th temperature of temperature, the third temperature of mainboard and battery；
Determine that first temperature, second temperature, third temperature and the 4th temperature meet the warm condition of preset limit and continue first
When preset time, controls the first charge controlling chip and the second charge controlling chip enters control temperature stage；
Control the first charge controlling chip reduce charging current be the first electric current, the second charge controlling chip reduce charging current be
It is first voltage that second electric current, adapter, which reduce output voltage,；Wherein, the first electric current, the second electric current and first voltage satisfaction make
Highest working efficiency can be reached under first voltage by obtaining the first charge controlling chip and the second charge controlling chip.
9. method as claimed in claim 6, which is characterized in that further comprise:
Determine that adapter is reduced to the second predeterminated voltage, and the first charge controlling chip or the second charge controlling chip reach highest
Working efficiency when, control in the first charge controlling chip and the second charge controlling chip any one charge controlling chip not work
Make, and the continuation of another charge controlling chip charges to the battery with the preset constant voltage.
10. the method as described in claim 6,8 or 9, which is characterized in that further comprise:
When determining the voltage of battery less than the first preset threshold, the first charge controlling chip and the second charge controlling chip are controlled not
Work；Or,
In constant voltage charging phase, determine that control first is charged when being less than preset minimum current to the electric current that the battery charges
Control chip and the second charge controlling chip do not work, and terminate charging.
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| CN201611027387.5A CN106532882B (en) | 2016-11-21 | 2016-11-21 | A kind of charge control method and device |
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| CN201611027387.5A CN106532882B (en) | 2016-11-21 | 2016-11-21 | A kind of charge control method and device |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964163A (en) * | 2017-05-24 | 2018-12-07 | 北京小米移动软件有限公司 | The management method and device of battery charging |
| JP6490148B2 (en) * | 2017-06-12 | 2019-03-27 | 本田技研工業株式会社 | Charge control device |
| CN107302245A (en) * | 2017-06-26 | 2017-10-27 | 宇龙计算机通信科技(深圳)有限公司 | A kind of charge control method and terminal |
| CN107734613B (en) * | 2017-10-17 | 2021-03-16 | 北京小米移动软件有限公司 | Power management method and device |
| CN108879836A (en) * | 2018-06-27 | 2018-11-23 | 广州酷狗计算机科技有限公司 | A kind of bluetooth headset and its control method of charging |
| WO2020024276A1 (en) * | 2018-08-03 | 2020-02-06 | 华为技术有限公司 | Charging circuit and terminal device |
| CN110838740B (en) * | 2018-08-17 | 2021-11-09 | 珠海格力电器股份有限公司 | Charging current control method and device |
| CN111293736B (en) * | 2018-12-07 | 2023-11-03 | 青岛海信移动通信技术有限公司 | Method and equipment for controlling temperature |
| CN110518669B (en) * | 2019-09-05 | 2021-08-17 | 深圳传音控股股份有限公司 | Charging system and method for handheld device and terminal device |
| CN110913075A (en) * | 2019-11-29 | 2020-03-24 | Oppo广东移动通信有限公司 | Charging control method, device, equipment and readable storage medium |
| CN112713629A (en) * | 2020-12-24 | 2021-04-27 | 维沃移动通信有限公司 | Charging method and device and electronic equipment |
| CN112732351B (en) * | 2020-12-31 | 2024-01-05 | 宇龙计算机通信科技(深圳)有限公司 | Chip compatibility configuration method and device, storage medium and electronic equipment |
| CN113410886A (en) * | 2021-06-23 | 2021-09-17 | 深圳传音控股股份有限公司 | Charging control method, mobile terminal and storage medium |
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