CN109802463A - Charging circuit, electricity acquisition methods and terminal - Google Patents
Charging circuit, electricity acquisition methods and terminal Download PDFInfo
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- CN109802463A CN109802463A CN201910153015.4A CN201910153015A CN109802463A CN 109802463 A CN109802463 A CN 109802463A CN 201910153015 A CN201910153015 A CN 201910153015A CN 109802463 A CN109802463 A CN 109802463A
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Abstract
The present invention provides a kind of charging circuit, electricity acquisition methods and terminal.The charging circuit includes: charging input end；Battery pack, battery pack include at least the first battery and the second battery, the anode connection charging input end of the first battery, the anode connection charging input end of the second battery and/or the cathode of the first battery；Terminal system, the input terminal connection charging input end of terminal system and/or the anode of the second battery；Operation control element；Current measuring element, current measuring element concatenate the first battery, and the output end of current measuring element connects the first end of the operation control element；Electric power detection element, the first end of electric power detection element connect the second battery, the second end of the second end connection operation control element of electric power detection element；Wherein, switch is arbitrarily provided in charging input end, the first battery, the second battery and terminal system between the two.The accurate acquisition of the battery information of the first battery and the second battery may be implemented in the embodiment of the present invention.
Description
Technical field
The present embodiments relate to field of communication technology more particularly to a kind of charging circuits, electricity acquisition methods and terminal.
Background technique
With the development of power supply industry, multiple battery combinations using the case where become more common, battery combination using need
Solve the problems, such as battery balanced, this just needs to get battery information.
Therefore, it is necessary to propose the acquisition scheme of battery information under battery combination service condition.
Summary of the invention
The embodiment of the present invention provides a kind of charging circuit, electricity acquisition methods and terminal, to realize that battery combination uses feelings
The acquisition of battery information under condition.
In a first aspect, the embodiment of the invention provides a kind of charging circuit, the charging circuit includes:
Charging input end；
Battery pack, the battery pack include at least the first battery and the second battery, the anode connection institute of first battery
Charging input end is stated, the anode of second battery connects the cathode of the charging input end and/or first battery；
Terminal system, the input terminal of the terminal system are connecting the charging input end and/or second battery just
Pole；
Operation control element；
Current measuring element, the current measuring element concatenate first battery, the output of the current measuring element
The first end of end connection operation control element；
Electric power detection element, the first end of the electric power detection element connect second battery, the electric power detection member
The second end of part connects the second end of the operation control element；
Wherein, both any in the charging input end, first battery, second battery and the terminal system
Between be provided with switch.
Second aspect, the embodiment of the invention provides a kind of terminal, the terminal includes charging circuit as described above.
The third aspect, the embodiment of the invention provides a kind of electricity acquisition methods, are applied to terminal, and the terminal includes such as
The upper charging circuit, which comprises
Before being charged by the charging circuit to first battery, described in the operation control element acquisition
First initial quantity of electricity value of the first battery；
In the case where being charged by the charging circuit to first battery, the operation control element is obtained
First electric current of first battery that the charging duration of the first battery charging and the current measuring element detect
Value；
The operation control element according to the first initial quantity of electricity value, first current value and the charging duration,
Determine the first object charge value of first battery.
Fourth aspect, the embodiment of the present invention also provide a kind of terminal, and the terminal includes being applied to charging as described above
Circuit；The operation control element further include:
First obtains module, for obtaining institute before charging by the charging circuit to first battery
State the first initial quantity of electricity value of the first battery；
Second obtains module, for obtaining in the case where being charged by the charging circuit to first battery
First electricity of first battery that the charging duration and the current measuring element for taking first battery to charge detect
Flow valuve；
First determining module is used for according to the first initial quantity of electricity value, first current value and the charging duration,
Determine the first object charge value of first battery.
In embodiments of the present invention, for the first battery, terminal can detect the first battery by current measuring element
Current value obtains the charging duration of the first battery charging and the initial quantity of electricity value of the first battery by operation control element,
So as to determine the target charge value of the first battery according to above-mentioned parameter value；For the second battery, terminal can directly pass through
The charge value of the second battery of electric power detection element testing.As it can be seen that the first battery and the second battery may be implemented in the embodiment of the present invention
Battery information accurate acquisition.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, needed in being described below to the embodiment of the present invention
Attached drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention,
For those of ordinary skill in the art, without any creative labor, it can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is one of the schematic diagram of charging circuit provided in an embodiment of the present invention；
Fig. 2 is the two of the schematic diagram of charging circuit provided in an embodiment of the present invention；
Fig. 3 is the three of the schematic diagram of charging circuit provided in an embodiment of the present invention；
Fig. 4 is the four of the schematic diagram of charging circuit provided in an embodiment of the present invention；
Fig. 5 is one of the flow chart of electricity acquisition methods provided in an embodiment of the present invention；
Fig. 6 is the two of the flow chart of electricity acquisition methods provided in an embodiment of the present invention；
Fig. 7 is the three of the flow chart of electricity acquisition methods provided in an embodiment of the present invention；
Fig. 8 is the four of the flow chart of electricity acquisition methods provided in an embodiment of the present invention；
Fig. 9 is the structure chart of operation control element provided in an 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 some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Term " first ", " second " in the application etc. are to be used to distinguish similar objects, without specific for describing
Sequence or precedence.In addition, term " includes " and " having " and their any deformation, it is intended that covering is non-exclusive
Include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to clearly arrange
Those of out step or unit, but may include be not clearly listed or it is solid for these process, methods, product or equipment
The other step or units having.In addition, "and/or" used herein indicates at least one of institute's connecting object, such as A
And/or B and/or C, indicating to include independent A, independent B, independent C and A and B exist, and B and C exist, and A and C exist,
And all existing 7 kinds of situations of A, B and C.
The charging circuit of the embodiment of the present invention at least may include: charging input end (or being input interface), battery
Group, terminal system, current measuring element, electric power detection element and Operations Analysis.
Wherein, charging input end is for connecting charging equipment, such as charger or charger baby.In practical applications, it charges
Input terminal can be universal serial bus (Universal Serial Bus, USB) interface of terminal.When specific implementation, terminal
It can be mobile phone, tablet computer (Tablet Personal Computer), laptop computer (Laptop Computer), a
Personal digital assistant (personal digital assistant, abbreviation PDA), mobile Internet access device (Mobile Internet
Device, MID) or wearable device (Wearable Device) etc..
Battery pack may include N number of battery, and N is the integer greater than 1, and the charging circuit of the embodiment of the present invention can be to described
N number of battery carries out mixed charged.For convenience of understanding, the embodiment of the present invention is by taking battery pack includes the first battery and the second battery as an example
It is illustrated, but the embodiment of the present invention and the particular number for being not so limited the battery that battery pack includes.Specifically, described first
The anode of battery connects the charging input end, and the anode of second battery connects the charging input end and/or described the
The cathode of one battery.
The input terminal of the terminal system connects the anode of the charging input end and/or second battery.It should be understood that
, terminal system can be understood as the electricity system of terminal.
Current measuring element, the current measuring element concatenate first battery, the output of the current measuring element
The first end of end connection operation control element.When specific implementation, current measuring element is used to detect the current value of the first battery；Into
One step, the current value for the battery that current measuring element can will test is transmitted to operation control element.
Electric power detection element, the first end of the electric power detection element connect second battery, the electric power detection member
The second end of part connects the second end of the operation control element.When specific implementation, electric power detection element is for detecting the second electricity
Voltage value, current value and the charge value in pond；Further, the voltage for the second battery that electric power detection element can will test
Value, current value and charge value are transmitted to operation control element.
In the charging input end, first battery, second battery and the terminal system arbitrarily between the two
Switch can be set.In this way, the charging circuit of the embodiment of the present invention can be made by controlling the above-mentioned working condition respectively switched
Charging circuit to the first battery and the second battery series connection or charged in parallel or, the first battery or the second battery are individually filled
Electricity.
It should be understood that cathode, the cathode of the second battery and the output end of terminal system and ground terminal of the first battery connect
It connects.For the first battery, charged in parallel or charging circuit are carried out to the first electricity to the first battery and the second battery in charging circuit
Pond carries out in the case where individually charging, and is connected between the cathode and ground terminal of the first battery；Charging circuit to the first battery and
In the case that second battery carries out serial connection charge, the cathode of the first battery and ground terminal it is separated, therefore, can be electric first
One switch of setting between the cathode and ground terminal in pond, so as to control the first battery by the working condition for controlling the switch
Cathode and ground terminal between state.
When implementing, the working condition respectively switched in charging circuit can be controlled by operation control element, but be not limited only to
This.In addition, operation control element at least can be used for: when obtaining the charging charged the battery by the charging circuit
Long and the first battery initial quantity of electricity value.In embodiments of the present invention, the initial quantity of electricity value of battery are as follows: charging input end connects
The charge value for connecing battery before charging equipment, is referred to as initial capacity state.
In practical applications, to prevent over-charging of battery, charging circuit can also detect the voltage shape of each battery in battery pack
State, to adjust the charging voltage and/or charging current of charging circuit according to the voltage status of battery.Therefore, for shown in Fig. 1
Charging circuit, charging circuit can also increase by one for detecting the voltage detector component of the first battery both end voltage, in reality
In, which can integrate with current measuring element shown in FIG. 1, form current measuring element.
It, can for the connection relationship in charging circuit between charging input end, the first battery, the second battery and terminal system
Choosing:
The anode of first battery connects the charging input end by first switch；
The cathode of first battery connects ground terminal by second switch；
The anode of second battery switchs the cathode of first battery by third；
The input terminal of the terminal system connects the charging input end by the 4th switch；
The anode that the input terminal of the terminal system passes through the 5th switch second battery；
The anode of second battery connects the charging input end by the 4th switch and the 5th switch.
For convenience of understanding, Fig. 1 is please referred to.In Fig. 1, the input terminal of terminal system passes through the 4th switch connection charging input
End, by the anode of the 5th switch the second battery of connection, meanwhile, the 5th switch of anode multiplexing of the second battery and the 4th switch connect
Connect charging input end, in this way, it is possible to reduce the number of switches being arranged in charging circuit, so as to reduce charging circuit at
This.It will be appreciated that in other embodiments, the second battery can also connect charging input end by another switch.
It should be noted that charging circuit shown in FIG. 1 is merely illustrative, it is not intended to limit the present invention the charging of embodiment
The specific manifestation form of circuit.
It is optional for charging circuit shown in FIG. 1:
In the case where carrying out serial connection charge to first battery and second battery by the charging circuit, institute
It is in the conductive state to state first switch, third switch and the 5th switch, the second switch and the 4th switch are in disconnection
State；Or,
In the case where carrying out charged in parallel to first battery and second battery by the charging circuit, institute
State that first switch, second switch, the 4th switch and the 5th switch are in the conductive state, and third switch is in disconnected
Open state；Or,
In the case where individually charge to first battery by the charging circuit, the first switch, institute
It states second switch and the 4th switch is in the conductive state, the third switch and the 5th switch are in an off state.
In addition, in the case where individually charge to the second battery by the charging circuit, the 4th switch and the 5th
Switch in the conductive state, the first switch is in an off state.
In embodiments of the present invention, the charging scheme that charging circuit uses specifically can be according to the first battery and the second battery
Whether balanced judging result determines.
Specifically, in the case where the first battery and second are battery balanced, charging circuit can use serial connection charge scheme
Or charged in parallel scheme, it is contemplated that the fast speed of serial connection charge, it is usually preferred to use serial connection charge scheme；In the first battery and
In the unbalanced situation of second battery, charging circuit uses independent charging scheme, and the charging object individually to charge can be according to the
Charge value in one battery and the second battery determines that such as: the charging object individually to charge can be the first battery and the second battery
The middle lower battery of charge value, so that charge value of the charge value of the first battery close to the second battery, and then realize the first electricity
The equilibrium in pond and the second battery.
Wherein, the battery balanced difference for referring to the charge value between battery is within preset range.Therefore, when specific implementation,
Operation control element can obtain the initial quantity of electricity value of the first battery according to the electric quantity curve and usage record of the first battery；Root
According to the electric quantity curve and usage record of the second battery, the charge value of the second battery is obtained, and then can be by judging the first battery
Charge value and the second battery charge value difference whether within a preset range, to judge whether are the first battery and the second battery
It is balanced.
Each charging scheme is illustrated individually below:
Serial connection charge scheme: serial connection charge is carried out to first battery and second battery.
In this charging scheme, charging circuit shown in FIG. 1 can be equivalent to Fig. 2.Wherein, ground terminal and operation control member
Part is not shown in Fig. 2, in addition, the flow direction of the arrow indicator current in Fig. 2.
As shown in Figure 2, the first battery is on main line, and the second battery and terminal system are on branch road.Accordingly, it is to be understood that
It is IAlways=I1=I2+ISystem；The input charge value=the input charge value of the-the second battery of charge value always inputted-of first battery is
The charge value that system uses.Wherein, IAlwaysIndicate the total current of input, I1The electric current of the first battery, I are flowed through in expression2It indicates to flow into second
The electric current of battery, ISystemIndicate the electric current of inflow terminal system.
In this charging scheme, I1It can detect to obtain by current measuring element, I2It can be obtained by electric power detection element testing
It arrives, therefore, ISystemI can be subtracted by I12It is calculated, no setting is required for charging circuit one for detecting the electric current of terminal system
The current measuring element of value, so as to reduce the cost of charging circuit.Certainly, in practical applications, I is obtained to improveSystem's
The current measuring element of a current value for detecting terminal system also can be set in rate, charging circuit.
In the case where constant-current charge, charge value can pass through calculation formula: Q=It, which is calculated, to be obtained, wherein Q indicates electricity
Magnitude, I indicate charging current, and t indicates charging duration.As shown in Figure 2, the charging of the first battery, the second battery and terminal system
Duration is equal, it is assumed that its charging duration is T1, then charge value=I for always inputting1×T1；The charge value that system uses=(I1-I2)
×T1.It should be noted that the embodiment of the present invention is only illustrated with constant-current charge, if electric current changes when charging,
Charge value can pass through the form calculus of integral.
For the input charge value of the second battery: in a kind of implementation, the input charge value of the second battery can be passed through
=I2×T1It is calculated；In another implementation, the electricity for the second battery that can be obtained by electric power detection element testing
The initial quantity of electricity value that value subtracts the second battery is calculated, wherein the initial quantity of electricity value of the second battery is charging input end connection
The charge value of second battery before charging equipment；When specific implementation, the initial quantity of electricity value of the second battery can be by operation control member
Part is obtained according to the electric quantity curve of the second battery and the usage record operation of the second battery.
Charged in parallel scheme: charged in parallel is carried out to first battery and second battery.
In this charging scheme, charging circuit shown in FIG. 1 can be equivalent to Fig. 3.Wherein, ground terminal and operation control member
Part is not shown in Fig. 3, in addition, the flow direction of the arrow indicator current in Fig. 3.
From the figure 3, it may be seen that the first battery, the second battery and terminal system are in parallel.It is understood, therefore, that IAlways=I1+I2+
ISystem；Input charge value=I of first battery1×T1。
Independent charging scheme, for individually charge to the first battery.When charging circuit carries out list to the first battery
Solely when charging, charging circuit shown in FIG. 1 can be equivalent to Fig. 4.
From the figure 3, it may be seen that the first battery and terminal system are in parallel.It is understood, therefore, that I it is total=I1+ I system；First
Input charge value=I of battery1×T1。
In embodiments of the present invention, for arbitrary charging scheme, after the input charge value of the first battery is calculated,
The sum of the initial quantity of electricity value of the input charge value of first battery and the first battery can be determined as to the total electricity value of the first battery,
That is the charge value after the first battery charging.Wherein, the initial quantity of electricity value of the first battery can be by operation control element according to first
The usage record operation of the electric quantity curve of battery and the first battery obtains.
In practical applications, the electric quantity curve of the first battery and the electric quantity curve of the second battery can recorde in electric power detection
It in element, also can store in operation control element or other elements, the embodiment of the present invention is not to the storage position of electric quantity curve
It sets and is defined.In addition, the electricity of the second battery is bent in the case where the first battery and the second battery are the battery of same model
The electric quantity curve of line and the second battery can be identical.
The charging circuit of the embodiment of the present invention, for the first battery, terminal can detect first by current measuring element
The current value of battery obtains the charging duration of the first battery charging and the initial electricity of the first battery by operation control element
Magnitude, so as to determine the target charge value of the first battery according to above-mentioned parameter value；For the second battery, terminal can be straight
Connected the charge value of the second battery of electric power detection element testing.As it can be seen that the first battery and may be implemented in the embodiment of the present invention
The accurate acquisition of the charge value of two batteries.
The embodiment of the present invention also provides a kind of terminal, the charging circuit including the embodiment of the present invention.
The embodiment of the present invention also provides a kind of electricity acquisition methods, can be applied to include the embodiment of the present invention charging electricity
The terminal on road.The electricity acquisition methods of the embodiment of the present invention are illustrated below.
It is one of the flow chart of electricity acquisition methods provided in an embodiment of the present invention referring to Fig. 5, Fig. 5.As shown in figure 5, electric
Amount acquisition methods may comprise steps of:
Step 501, before being charged by the charging circuit to first battery, the operation control element
Obtain the first initial quantity of electricity value of first battery.
When specific implementation, operation control element can obtain first according to the electric quantity curve and usage record of the first battery
The initial quantity of electricity value of battery, i.e. charging input end connect the charge value of the first battery before charging equipment.
Step 502, in the case where being charged by the charging circuit to first battery, the operation control
First battery that element obtains the charging duration of the first battery charging and the current measuring element detects
First current value.
When specific implementation, operation control element can obtain the charging duration by record, or receive and fill described in acquisition
Electric duration.
Step 503, the operation control element according to the first initial quantity of electricity value, first current value and described fill
Electric duration determines the first object charge value of first battery.
It should be understood that the first object charge value of the first battery is to pass through the charging circuit to first battery
Charge value after being charged.
Wherein, the specific manifestation form of step 503 is related to charging scheme.
Embodiment one carries out serial connection charge to first battery and second battery by the charging circuit.
Optionally, the method also includes:
Before being charged by the charging circuit to second battery, described in the operation control element acquisition
Second initial quantity of electricity value of the second battery；
In the case where being charged by the charging circuit to second battery, the operation control element is obtained
Second current value of second battery that the electric power detection element testing arrives；
The operation control element according to the first initial quantity of electricity value, first current value and the charging duration,
Determine the first object charge value of first battery, comprising:
The product of first current value and the charging duration is determined as total electricity value by the operation control element；
The product of first object value and the charging duration is determined as the terminal system by the operation control element to be made
Third charge value, the first object value are the difference of first current value and second current value；
The sum of second target value and the first initial quantity of electricity value is determined as first electricity by the operation control element
The first object charge value in pond, second target value subtract third target value for the total electricity value and subtract the third electricity again
The difference of magnitude, the third target value are the product of second current value and the charging duration.
Its realization principle can specifically be described with reference to foregoing teachings, and details are not described herein again.
In addition, it is necessary to explanation, the third target value can also be by showing themselves in that the electric power detection element testing
Second target charge value of the second battery arrived and the difference of the second initial quantity of electricity value.
Embodiment two carries out charged in parallel to first battery and second battery by the charging circuit,
Or the charging circuit individually charges to first battery.
Optionally, the operation control element according to the first initial quantity of electricity value, first current value and described fills
Electric duration determines the first object charge value of first battery, comprising:
The sum of the first initial quantity of electricity value and the 4th target value is determined as first electricity by the operation control element
The first object charge value in pond, the 4th target value are the product of first current value and the charging duration.
Its realization principle can specifically be described with reference to foregoing teachings, and details are not described herein again.
The electricity acquisition methods of the embodiment of the present invention further can also include:
The operation control element arrived according to the first object charge value and the electric power detection element testing second
Second target charge value of battery, determines the charging scheme of the charging circuit；
The operation control element fills first battery and/or second battery using the charging scheme
Electricity.
When specific implementation, operation control element can be by the working condition of control switch, so that charging circuit is using true
Fixed charging scheme charges to first battery and/or second battery.
In a kind of implementation, operation control element be may determine that between first object charge value and the second target charge value
Difference whether exceed preset range.If the difference between first object charge value and the second target charge value exceeds default model
It encloses, then can determine that charging scheme is independent charging scheme, and the lower battery of charge value is determined as independent charging object；If
Difference between first object charge value and the second target charge value can then determine charging scheme for string without departing from preset range
Join charging scheme or charged in parallel scheme.
In another implementation, operation control element may determine that whether first object charge value reaches the first preset value
Or second target charge value whether reach the second preset value.If it is pre- that operation control element determines that first object charge value reaches first
If value or the second target charge value reach the second preset value, then it can determine that charging scheme is independent charging scheme, and by electricity
Value is to reach the battery of its corresponding preset value to be determined as independent charging object；If operation control element determines first object electricity
Value reaches the first preset value and the second target charge value reaches the second preset value, then Operations Analysis can control first and open
Pass, the 4th switch are in an off state, and stop charging to the first battery and the second battery.Wherein, the first preset value can be the
The open ended maximum charge value of one battery, the second preset value can be the open ended maximum charge value of the second battery.
In embodiments of the present invention, the first object electricity of the first battery can be obtained by calculation in operation control element
Value can receive the second target charge value for obtaining the second battery.In the feelings that battery pack only includes the first battery and the second battery
Under condition, total electricity value=first object charge value the+the second target charge value of battery pack.
It should be noted that the operation control element of the embodiment of the present invention can also according to the electric quantity curve of the first battery and
Usage record obtains the loading electricity ability of the first battery；According to the electric quantity curve and usage record of the second battery, second is obtained
The loading electricity ability of battery.Wherein, the loading electricity ability of battery can be used for measuring the ability that battery loads electricity, i.e., electric
Pond can fill how many electricity.It should be understood that the ability of the loading electricity of battery will reduce with the increase of service time of battery.
The total electricity percentage of battery pack=(the total loading electricity ability of total electricity value/battery pack of battery pack) ×
100%, wherein the loading electricity of loading the+the second battery of electricity ability of total loading electricity ability=first battery of battery pack
Ability.
As it can be seen that the accurate of the battery information of the first battery and the second battery may be implemented in the electricity acquisition methods of the present embodiment
It obtains.
It should be noted that in embodiments of the present invention, terminal can obtain the first battery when reaching preset condition
Charge value.Therefore, the first object charge value of the first battery determined in embodiment of the present invention method is it is to be understood that reach pre-
If the charge value of the first battery when condition；Correspondingly, the finish time of the charging duration of the first battery charging are as follows: reach pre-
If at the time of condition.Specifically, it may include at least one of following for reaching preset condition: the charging voltage value of first battery
Higher than preset voltage value；The charging current of first battery is lower than pre-set current value.
It should be noted that the embodiment for the plurality of optional introduced in the embodiment of the present invention, can be combined with each other each other
It realizes, can also be implemented separately, this embodiment of the present invention is not construed as limiting.
For convenience of understanding, illustrate as follows:
Embodiment one, serial connection charge.Please refer to Fig. 6:
Input interface detects incoming level；
Battery use information is read, judges whether battery is balanced, and the synchronous input voltage that reads (executes if unbalanced
Preset balanced measure；Quick charge scheme is executed if balanced)；
If battery is equalised, control switch serial connection charge；
Current measuring element detects the voltage and current of the first battery；
Electric power detection element measures the information of the second battery；
Operations Analysis is calculated according to the information of current measuring element and the information of electric power detection element, judges
The charge value of one battery.
Embodiment two, charged in parallel.Please refer to Fig. 7:
Input interface detects incoming level；
Battery use information is read, judges whether battery is balanced, and the synchronous input voltage that reads (executes if unbalanced
Preset balanced measure；Quick charge scheme is executed if balanced)；
If battery is equalised, control switch charged in parallel；
Current measuring element detects the voltage and current of the first battery；
Electric power detection element measures the information of the second battery；
Operations Analysis is calculated according to the information of current measuring element, judges the charge value of the first battery.
Embodiment three individually charges to the first battery.Please refer to Fig. 8:
Input interface detects incoming level；
Battery use information is read, judges whether battery is balanced, and synchronous reading input voltage；
If balanced, charge in parallel or series；
If unbalanced, determine whether to individually charge to the first battery；
If it is not, then individually being charged to the second battery, and during the charging process, charge according to the communication information；
If so, Operations Analysis control switch individually gives the first battery to charge；
Current measuring element detects the voltage and current of the first battery；
Electric power detection element measures the information of the second battery；
Operations Analysis is calculated according to the information of current measuring element, judges the charge value of the first battery.
The embodiment of the present invention at least has following improvement:
1, the electric power detection element for reducing battery, reduces costs and complexity.
2, only by calculating, the charge value of the first battery is calculated when finally fast be full of, reduces charging scheme
Switching times accelerate battery charging rate.
The electricity acquisition methods of the embodiment of the present invention, Operations Analysis can filling by the first battery and the second battery
Piezoelectric voltage and electric current and system power information calculate the information of the first battery.It may be implemented by this method using an electricity
Meter can accurately test out the information of entire battery pack, it is ensured that the equilibrium of battery is reliable.
When charging input end is connected to standard configuration charger, through the embodiment of the present invention, the information of battery can be accurately judged,
So as to realize charging safely and fast.
During charging, does not need to increase electric power detection element to the first battery, can be joined by related charger
Number (including system electricity consumption, charge information, the charging total current voltage of the second battery), calculates the part of not electric power detection
The information of (the first battery), to guarantee the equalization problem of battery in charging process.
The embodiment of the present invention at least has the following beneficial effects:
1, the information about power between two batteries can be accurately tested out, and balanced measure is executed according to information about power, really
Two battery balanced uses are protected, guarantee the reliability of mobile phone.
2, an electric power detection element can be used, complete the information measurement of two or more battery packs.
In the charger for connecing standard configuration, the embodiment of the present invention provides reliable information for charge and discharge fulgurite for quick charge
Reason；When connecing nonstandard charger, the embodiment of the present invention can also accurately provide battery information, so that mobile phone is accurately electric to carrying out
Pond control.
The embodiment of the invention also provides a kind of terminal, the terminal includes at least charging circuit as described above, into one
Step ground, refers to Fig. 9, the operation control element of charging circuit may include:
First obtains module 901, for obtaining before being charged by the charging circuit to first battery
First initial quantity of electricity value of first battery；
Second obtains module 902, in the case where being charged by the charging circuit to first battery,
The first of first battery that the charging duration and the current measuring element for obtaining the first battery charging detect
Current value；
First determining module 903, when for according to the first initial quantity of electricity value, first current value and the charging
It is long, determine the first object charge value of first battery.
Optionally, in the feelings for carrying out serial connection charge to first battery and second battery by the charging circuit
Under condition:
The operation control element further include:
Third obtains module, for obtaining institute before charging by the charging circuit to second battery
State the second initial quantity of electricity value of the second battery；
4th obtains module, for obtaining in the case where being charged by the charging circuit to second battery
Second current value of second battery for taking the electric power detection element testing to arrive；
First determining module 903, comprising:
First determination unit, for the product of first current value and the charging duration to be determined as total electricity value；
Second determination unit makes for the product of first object value and the charging duration to be determined as the terminal system
Third charge value, the first object value are the difference of first current value and second current value；
Third determination unit, for the sum of the second target value and the first initial quantity of electricity value to be determined as first electricity
The first object charge value in pond, second target value subtract third target value for the total electricity value and subtract the third electricity again
The difference of magnitude, the third target value are the product of second current value and the charging duration.
Optionally, charged in parallel is being carried out to first battery and second battery by the charging circuit, or
First battery is carried out in the case where individually charging by the charging circuit:
First determining module 903, is specifically used for:
The sum of the first initial quantity of electricity value and the 4th target value is determined as to the first object electricity of first battery
Value, the 4th target value are the product of first current value and the charging duration.
Optionally, the operation control element further include:
Second determining module, second for being arrived according to the first object charge value and the electric power detection element testing
Second target charge value of battery, determines the charging scheme of the charging circuit；
Charging module, for being charged using the charging scheme to first battery and/or second battery.
Operation control element in the present embodiment can be realized what operation control element in embodiment of the present invention method was realized
Each process, and reach identical beneficial effect, to avoid repeating, which is not described herein again.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize each process of above-mentioned electricity acquisition methods embodiment, and energy when being executed by processor
Reach identical technical effect, to avoid repeating, which is not described herein again.Wherein, the computer readable storage medium, such as only
Read memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation
RAM), magnetic or disk etc..
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form belongs within protection of the invention.
Claims (12)
1. a kind of charging circuit, which is characterized in that the charging circuit includes:
Charging input end；
Battery pack, the battery pack include at least the first battery and the second battery, fill described in the anode connection of first battery
Electrical input, the anode of second battery connect the cathode of the charging input end and/or first battery；
Terminal system, the input terminal of the terminal system connect the anode of the charging input end and/or second battery；
Operation control element；
Current measuring element, the current measuring element concatenate first battery, and the output end of the current measuring element connects
Connect the first end of the operation control element；
The first end of electric power detection element, the electric power detection element connects second battery, the electric power detection element
Second end connects the second end of the operation control element；
Wherein, in the charging input end, first battery, second battery and the terminal system arbitrarily between the two
It is provided with switch.
2. charging circuit according to claim 1, it is characterised in that:
The anode of first battery connects the charging input end by first switch；
The cathode of first battery connects ground terminal by second switch；
The anode of second battery switchs the cathode of first battery by third；
The input terminal of the terminal system connects the charging input end by the 4th switch；
The anode that the input terminal of the terminal system passes through the 5th switch second battery；
The anode of second battery connects the charging input end by the 4th switch and the 5th switch.
3. charging circuit according to claim 2, it is characterised in that:
In the case where carrying out serial connection charge to first battery and second battery by the charging circuit, described the
One switch, third switch and the 5th switch are in the conductive state, and the second switch and the 4th switch are in an off state；
Or,
In the case where carrying out charged in parallel to first battery and second battery by the charging circuit, described the
One switch, second switch, the 4th switch and the 5th switch are in the conductive state, and the third switch is in disconnection shape
State；Or,
In the case where individually charge to first battery by the charging circuit, the first switch, described the
Two switches and the 4th switch are in the conductive state, and the third switch and the 5th switch are in an off state.
4. a kind of terminal, which is characterized in that the terminal includes being applied to the electricity of charging described in any one of claims 1 to 3
Road.
5. a kind of electricity acquisition methods are applied to terminal, which is characterized in that the terminal includes any one of claims 1 to 3
The charging circuit；The described method includes:
Before being charged by the charging circuit to first battery, the operation control element obtains described first
First initial quantity of electricity value of battery；
In the case where being charged by the charging circuit to first battery, described in the operation control element acquisition
First current value of first battery that the charging duration of the first battery charging and the current measuring element detect；
The operation control element is determined according to the first initial quantity of electricity value, first current value and the charging duration
The first object charge value of first battery.
6. according to the method described in claim 5, it is characterized in that, passing through the charging circuit to first battery and institute
In the case where stating the second battery progress serial connection charge:
The method also includes:
Before being charged by the charging circuit to second battery, the operation control element obtains described second
Second initial quantity of electricity value of battery；
In the case where being charged by the charging circuit to second battery, described in the operation control element acquisition
Second current value of second battery that electric power detection element testing arrives；
The operation control element is determined according to the first initial quantity of electricity value, first current value and the charging duration
The first object charge value of first battery, comprising:
The product of first current value and the charging duration is determined as total electricity value by the operation control element；
The product of first object value and the charging duration is determined as what the terminal system used by the operation control element
Third charge value, the first object value are the difference of first current value and second current value；
The sum of second target value and the first initial quantity of electricity value is determined as first battery by the operation control element
First object charge value, second target value subtract third target value for the total electricity value and subtract the third charge value again
Difference, the third target value be second current value and the charging duration product.
7. according to the method described in claim 5, it is characterized in that, passing through the charging circuit to first battery and institute
It states the second battery and carries out charged in parallel, or, being carried out in the case where individually charging by the charging circuit to first battery:
The operation control element is determined according to the first initial quantity of electricity value, first current value and the charging duration
The first object charge value of first battery, comprising:
The sum of the first initial quantity of electricity value and the 4th target value is determined as first battery by the operation control element
First object charge value, the 4th target value are the product of first current value and the charging duration.
8. method according to any one of claims 5 to 7, which is characterized in that the method also includes:
The second battery that the operation control element is arrived according to the first object charge value and the electric power detection element testing
The second target charge value, determine the charging scheme of the charging circuit；
The operation control element charges to first battery and/or second battery using the charging scheme.
9. a kind of terminal, which is characterized in that the terminal includes charging circuit as claimed any one in claims 1 to 3, institute
Stating operation control element includes:
First obtains module, for before charging by the charging circuit to first battery, acquisition described the
First initial quantity of electricity value of one battery；
Second obtains module, for obtaining institute in the case where charging by the charging circuit to first battery
First electric current of first battery that the charging duration and the current measuring element for stating the charging of the first battery detect
Value；
First determining module, for determining according to the first initial quantity of electricity value, first current value and the charging duration
The first object charge value of first battery.
10. terminal according to claim 9, which is characterized in that by the charging circuit to first battery and
In the case that second battery carries out serial connection charge:
The operation control element further include:
Third obtains module, for before charging by the charging circuit to second battery, acquisition described the
Second initial quantity of electricity value of two batteries；
4th obtains module, for obtaining institute in the case where charging by the charging circuit to second battery
State the second current value of second battery that electric power detection element testing arrives；
First determining module, comprising:
First determination unit, for the product of first current value and the charging duration to be determined as total electricity value；
Second determination unit, for the product of first object value and the charging duration to be determined as what the terminal system used
Third charge value, the first object value are the difference of first current value and second current value；
Third determination unit, for the sum of the second target value and the first initial quantity of electricity value to be determined as first battery
First object charge value, second target value subtract third target value for the total electricity value and subtract the third charge value again
Difference, the third target value be second current value and the charging duration product.
11. terminal according to claim 9, which is characterized in that by the charging circuit to first battery and
Second battery carries out charged in parallel, or the case where individually charged by the charging circuit to first battery
Under:
First determining module, is specifically used for:
The sum of the first initial quantity of electricity value and the 4th target value is determined as to the first object charge value of first battery, institute
State the product that the 4th target value is first current value and the charging duration.
12. the terminal according to any one of claim 9 to 11, which is characterized in that the operation control element further include:
Second determining module, second for being arrived according to the first object charge value and/or the electric power detection element testing
Second target charge value of battery, determines the charging scheme of the charging circuit；
Charging module, for being charged using the charging scheme to first battery and/or second battery.
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| CN201910153015.4A CN109802463B (en) | 2019-02-28 | 2019-02-28 | Charging circuit, electric quantity obtaining method and terminal |
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| CN201910153015.4A CN109802463B (en) | 2019-02-28 | 2019-02-28 | Charging circuit, electric quantity obtaining method and terminal |
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