CN106532831A - Charging control method and device - Google Patents
Charging control method and device Download PDFInfo
- Publication number
- CN106532831A CN106532831A CN201611088182.8A CN201611088182A CN106532831A CN 106532831 A CN106532831 A CN 106532831A CN 201611088182 A CN201611088182 A CN 201611088182A CN 106532831 A CN106532831 A CN 106532831A
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- Prior art keywords
- voltage
- charge
- current
- over circuit
- battery
- Prior art date
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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
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
-
- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a charging control method and device. Then method includes the following steps: acquiring initial charging voltage and initial charging current of a battery to be charged; and if the fact that the initial charging voltage is larger than a set voltage threshold and the initial charging current is larger than a set current threshold is determined, controlling a charge pump conversion circuit to be powered up and a step-down conversion circuit to be powered down, controlling an adapter to output dynamic voltage and dynamic current to the charge pump conversion circuit, and charging the battery to be charged through the charge pump conversion circuit. Compared with the prior art, since the efficiency charge pump conversion circuit is adopted during large-current charging, step-down conversion efficiency is effectively improved, charging speed is increased and charging time is shortened; and in addition, since the charge pump conversion circuit does not contain an inductance device which is easy to generate thermal energy, the problem of heat emission of a circuit during charging can be further solved.
Description
Technical field
The present invention relates to charging technique field, more particularly to a kind of charge control method and device.
Background technology
At present, people are when charging for terminal device (such as mobile phone, panel computer etc.), can generally adopt including adapter with
And the charging system of buck conversion (Buck Switch Charger, Buck) circuit is (as shown in figure 1, during which is prior art
The structural representation of described charging system) complete the whole charging stage.Specifically, as shown in Figure 1, it is described in the prior art
Charging system may include adapter 11, decompression converting circuit 12 and battery to be charged 13.Wherein, the charging stage may include
Trickle stage, charging stage, CC (Constant Current, constant current) stages and CV (Constant Voltage, constant pressure)
Stage.
Specifically, in the prior art, adapter can only export fixed voltage (such as 3.5V) and fixed current (such as 3A)
Give buck change-over circuit；Buck change-over circuit can be depressured to the fixed voltage for receiving by the dropping voltage characteristic of itself
Conversion, and then the charging voltage and charging current of controllable input to battery to be charged, to realize the charging to terminal device.
But, as the outputting inductance that there is coil loss and core loss would generally be included in buck change-over circuit, thus at end
In the charging process of end equipment, may there is step-down conversion efficiency relatively low (in general, below 91%) and the speed that charges
The slower problem of degree, and as the energy of outputting inductance loss would generally change into heat energy, thus also result in terminal device
Heating.
That is, existing charge control method is present, step-down conversion efficiency is relatively low, charging rate is relatively slow and generates heat
More serious problem.
The content of the invention
A kind of charge control method and device are embodiments provided, to solve existing charge control method institute
The step-down conversion efficiency of presence is relatively low, charging rate is relatively slow and more serious etc. problem of generating heat.
A kind of charge control method is embodiments provided, including：
Gather the initial charge voltage and initial charge current of battery to be charged；
Judge voltage threshold and the initial charge current of the initial charge voltage more than setting more than the electricity for setting
Stream threshold value；
If so, electricity and buck change-over circuit power down on charge pump change-over circuit is then controlled, and adapter is controlled to institute
State charge pump change-over circuit output dynamic electric voltage and dynamic current, with by the charge pump change-over circuit to described to be charged
Battery charges.
The embodiment of the present invention additionally provides a kind of battery charge controller, including：
Acquisition module, for gathering the initial charge voltage and initial charge current of battery to be charged；
Control module, for judging voltage threshold and initial charge electricity of the initial charge voltage more than setting
Current threshold of the stream more than setting, if so, then controls electricity and buck change-over circuit power down on charge pump change-over circuit, and controls
Adapter processed exports dynamic electric voltage and dynamic current to the charge pump change-over circuit, with by the charge pump change-over circuit
Charge to the battery to be charged.
The present invention has the beneficial effect that：
A kind of charge control method and device are embodiments provided, the initial charge electricity of battery to be charged can be gathered
Pressure and initial charge current；And if it is determined that the initial charge voltage is more than the voltage threshold and the initial charge for setting
Current threshold of the electric current more than setting, then control electric on the charge pump change-over circuit and buck change-over circuit and fall
Electricity, and adapter is controlled to charge pump change-over circuit output dynamic electric voltage and dynamic current, with by the charge pump
Change-over circuit charges to the battery to be charged.Compared to prior art, as efficient electricity is employed in large current charge
Lotus pump change-over circuit, so as to effectively improving step-down conversion efficiency, accelerating charging rate, shorten the charging interval；And, by
Not comprising the inductance component for easily producing heat energy in charge pump change-over circuit, thus circuit when further can also solve to charge
Heating problem.
Description of the drawings
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings
Accompanying drawing.
The simple structure schematic diagram of the charging system that Fig. 1 is provided in showing prior art；
The schematic flow sheet of the charge control method that Fig. 2 is provided in showing the embodiment of the present invention one；
The topology example figure of the charging system that Fig. 3 is provided in showing the embodiment of the present invention one；
A kind of possible schematic flow sheet of the charge control method that Fig. 4 is provided in showing the embodiment of the present invention one；
The concrete structure schematic diagram of the first possible charging system that Fig. 5 is provided in showing the embodiment of the present invention one；
The concrete structure schematic diagram of second possible charging system that Fig. 6 is provided in showing the embodiment of the present invention one；
The concrete structure schematic diagram of the third possible charging system that Fig. 7 is provided in showing the embodiment of the present invention one；
The structural representation of the battery charge controller that Fig. 8 is provided in showing the embodiment of the present invention two.
Specific embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
One step ground is described in detail, it is clear that described embodiment is only a part of embodiment of the invention, rather than the enforcement of whole
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
All other embodiment, belongs to the scope of protection of the invention.
Embodiment one：
In order to solve, step-down conversion efficiency existing for existing charge control method is relatively low, charging rate is relatively slow and sends out
The more serious problem of heat, the embodiment of the present invention one provides a kind of charge control method, as shown in Fig. 2 which is enforcement of the present invention
The step of charge control method described in example one schematic flow sheet.Specifically, as shown in Figure 2, the charge control method can
Comprise the following steps：
Step 201：Gather the initial charge voltage and initial charge current of battery to be charged；
Step 202：Judge that the initial charge voltage is more than more than the voltage threshold and the initial charge current of setting
The current threshold of setting；
Step 203：If so, electricity and buck change-over circuit power down on charge pump change-over circuit is then controlled, and is controlled suitable
Orchestration exports dynamic electric voltage and dynamic current to the charge pump change-over circuit, with by the charge pump change-over circuit to institute
State battery to be charged to charge.
That is, the initial charge voltage and initial charge of battery to be charged in embodiments of the present invention, can be gathered
Electric current；And if it is determined that the initial charge voltage is more than setting more than the voltage threshold and the initial charge current of setting
Current threshold, then control electric on the charge pump change-over circuit and buck change-over circuit power down, and control adapter
Dynamic electric voltage and dynamic current are exported to the charge pump change-over circuit, to treat to described by the charge pump change-over circuit
Rechargeable battery charges.Compared to prior art, as efficient charge pump change-over circuit is employed in large current charge, so as to
Step-down conversion efficiency is effectively improved, charging rate is accelerated, is shortened the charging interval；And, due to charge pump change-over circuit
In not comprising the inductance component for easily producing heat energy, thus when further can also solve to charge circuit heating problem.
Wherein, the voltage threshold and the current threshold can actual conditions flexibly arrange, such as may be configured as 3.5V
And 2A etc., as long as disclosure satisfy that actual demand.In addition, the voltage threshold can generally be not less than the starting in CC stages
Voltage (generally can be 3V), and this is not repeated.
Furthermore, in embodiments of the present invention, the executive agent of the charge control method can be described can arbitrarily to realize
The battery charge controller of charge control method, the battery charge controller can be in being arbitrarily integrated in the adapter or to collect
Into terminal device (terminal device that such as mobile phone, panel computer etc. are connected with the adapter, and, the terminal device lead to
USB data line etc. can often be passed through to be connected with the adapter) in integrating device, alternatively arbitrarily independently of the adapter with
And the self-contained unit of the terminal device.
It should be noted that the initial charge voltage and initial charge current of the battery to be charged can be for during collections
The charging voltage and charging current of the battery to be charged are carved, generally can be changed with the change at collection moment.Example
Such as, it is assumed that during collection moment T1, the initial charge voltage and the initial charge current can be 2V and 2A；The collection moment
During T2, the initial charge voltage and the initial charge current can be 3V and 2.8A etc., the embodiment of the present invention to this not
Repeat.
It should be noted that the initial charge voltage and initial charge current of collection battery to be charged, may also include：
The initial charge voltage and initial charge current of battery to be charged described in Real-time Collection；And,
Every setting duration, the initial charge voltage and initial charge current of the battery to be charged are gathered.
Wherein, the setting duration flexibly can be arranged according to the actual requirements, such as may be configured as 1 second, 1 minute and 1 hour
Deng as long as disclosure satisfy that actual demand, the embodiment of the present invention is not limited in any way to this.
Further, the charge control method described in the embodiment of the present invention can be applicable to charging system as shown in Figure 3
In, which is a kind of simple structural representation of the charging system described in the embodiment of the present invention.Specifically, from the figure 3, it may be seen that institute
State charging system at least may include adapter 31, charge pump change-over circuit 32, buck change-over circuit 33, battery to be charged 34 with
And battery charge controller 35, the embodiment of the present invention is not repeated to this.
It should be noted that the battery to be charged can be the battery of the terminal device, the end is can be typically mounted at
The inside of end equipment.And, the initial charge voltage of the battery to be charged generally can be the current voltage of the battery to be charged,
The initial charge current of the battery to be charged generally can be 0, and this is not repeated.
In addition, it is necessary to explanation, in embodiments of the present invention, the charge pump change-over circuit can be existing
Charge Pump Converter circuits；The buck change-over circuit can be electric for existing Buck Switch Charger
Road.
As it is known from the prior art that generally may include in the Charge Pump Converter circuits it is multiple (generally
4) switching device (such as triode, FET etc.) and capacitor element, and the Charge Pump Converter circuits
Charging principle can be：In the first half cycle of each charge cycle, it is connected with the Charge Pump Converter circuits
Adapter can be filled to the capacitor element in the Charge Pump Converter circuits and the battery to be charged
Electricity；Capacitor element in the later half cycle of each charge cycle, the Charge Pump Converter circuits can be to described
Battery to be charged is charged.Due to not including inductance component in Charge Pump Converter circuits, so as in high current
During charging, be not in the heating problem of charging circuit and terminal device, it is thus possible to treated to described using larger electric current
Rechargeable battery is charged, and effectively improves the experience and satisfaction of user.
Further, it should be noted that generally may include switching device, electricity in the Buck Switch Charger circuits
Container piece and inductance component, and, the charging principle of the Buck Switch Charger circuits can be：Charge week each
The first half cycle of phase, the adapter being connected with the Buck Switch Charger circuits can be to the Buck Switch
Capacitor element, inductance component and the battery to be charged in Charger circuits is charged；After each charge cycle
Half period, the capacitor element and inductance component in the Buck Switch Charger circuits can be to the battery to be charged
It is charged.Appoint as the voltage step-down that adapter is exported neatly can be converted to by Buck Switch Charger circuits
The magnitude of voltage of meaning size, so as to ensure the flexibility charged in low current charge.
, wherein it is desired to illustrate, Charge Pump Converter circuits only will can be adapted in step-down conversion
The voltage step-down half of device output, thus when the charging of terminal device is carried out, need to change the output voltage of adapter in real time
And output current, to change the output voltage and output current of the Charge Pump Converter circuits in real time.When
During using large current charge, due to needing the heating problem in view of circuit, thus Charge Pump can be preferentially adopted
Converter circuits；When using low current charge, as heating problem need not be considered, it is possible to can exist due to needing reality
When change adapter output voltage and output current institute caused by, charging flexibility it is poor and compatible with adapter
The poor problem of property.
From the above and prior art, Charge Pump Converter circuits can be applied to high current
The scene of charging, sends out thermal property with lifting step-down conversion efficiency, shortening charging duration and reducing circuit；And the Buck
Switch Charger circuits can be applied to the scene of low current charge, higher and compatible with adapter with flexibility
Higher characteristic.Thus, when being charged to terminal device, can the charging stage starting stage (such as the trickle stage and
Charging stage) and complete the stage (if the second half section in CV stages, i.e. charging voltage are not less than setting voltage threshold value and charging current
Less than setting electric current threshold value) select the Buck Switch Charger circuits to be charged to the battery to be charged；Filling
Other stages in electric stage are (as CC stages and the front half section in CV stages, i.e. charging voltage are not less than setting voltage threshold value and fill
Electric current is not less than setting electric current threshold value) select the Charge Pump Converter circuits to enter to the battery to be charged
Row charges.So as to not only solve during large current charge be depressured conversion efficiency it is relatively low, charge efficiency is relatively low, the charging interval it is longer with
And more serious problem of generating heat, also solve the relatively low problem of compatible poor and flexibility, the present invention during low current charge
Embodiment is not repeated to this.
Specifically, control the adapter dynamic electric voltage and dynamic current are exported to the charge pump change-over circuit, can
Including：
According to the initial charge voltage, determine that the adapter is needed to the initial of charge pump change-over circuit output
Output voltage；
On the basis of the initial output voltage, increasing the adapter according to the first voltage stepping of setting needs to institute
The voltage of charge pump change-over circuit output is stated, until determining current threshold of the charging current of the battery to be charged in setting
In the range of.
Wherein, the first voltage stepping can be flexibly arranged according to actual conditions, such as may be configured as 500mV, 1000mV or
Person 2000mV etc., as long as ensure that the adapter determined is needed as the Charge Pump Converter circuits
The initial output voltage of output meets actual demand, and this is not repeated.
It should be noted that under normal circumstances, except it can be increased by the first voltage stepping (such as △ V1) as described in
Adapter, can also be sub according to first for setting first to outside the voltage of the Charge Pump Converter circuit outputs
Voltage steps (such as △ V11) increase the voltage that the adapter needs to the Charge Pump Converter circuit outputs,
So that first electron current scope of the charging current of the battery to be charged in setting (such as Ibat01≤Ibat≤Ibat02)
It is interior；Afterwards, can increase described suitable according to the second of setting the sub- voltage steps (being less than the described first sub- voltage steps, such as △ V12)
Orchestration needs the voltage to the Charge Pump Converter circuit outputs, until the charging electricity of the battery to be charged
(now, the second electron current scope can be above-mentioned current threshold scope to the second electron current scope of the stream in setting, such as may be used
For Ibat1≤Ibat≤Ibat2) in.Wherein, the Ibat01 may be typically smaller than the Ibat1, and the Ibat02 generally can be little
In the Ibat2, this is not repeated.
That is, the output voltage of the adapter first can be adjusted using big voltage steps, so that described to be charged
The charging current of battery levels off to the current threshold scope faster, it is determined that the charging current of the battery to be charged reaches soon
The output voltage of adapter described in small voltage step by step modulating during to the current threshold scope, can be adopted, is reached so as to shorten
The time of the current threshold scope, the efficiency for reaching the current threshold scope is improve, and then improve charge efficiency, saved
The charging interval is saved.
For example, the output voltage of the adapter can be increased first according to the stepping of 1000mV, it is determined that described wait to fill
When the charging current of battery is in the range of 4000mA～5000mA, can be described further according to the stepping of 200mV increase
The output voltage of adapter, until determining the charging current of the battery to be charged in the range of 4800mA～5000mA.
So as to the voltage ratio in the battery to be charged it is less when, the output of the adapter can be increased according to larger voltage steps
Voltage, when the voltage of the battery to be charged is larger, can increase the output of the adapter according to less voltage steps
Voltage, effectively improves charge efficiency, accelerates charging rate, saves the charging interval.
It should be noted that the current threshold scope of setting whether is in the charging current for scanning the battery to be charged
When, in addition to it can be divided into big voltage steps and small voltage stepping, other voltage steps can be also set, such as middle voltage steps
(can such as be 500mV) etc., as long as the charging current by the battery to be charged that can be rapidly and efficiently is determined in the current threshold
In the range of value, this is not repeated.
Further, as the charging voltage of the battery to be charged generally can be the Charge Pump being attached thereto
The output voltage Vbat of Converter circuits, the charging current of the battery to be charged generally can be the Charge being attached thereto
Output current Ibat of Pump Converter circuits, and, due to the input voltage of Charge Pump Converter circuits
Vbus can generally pass through the output voltage and communication line between the two of the adapter being attached thereto and determine.
Specifically, it is assumed that the initial output voltage of the adapter is Vout0, and the initial output current of the adapter is
Iout0, the impedance on circuit between the adapter and the Charge Pump Converter circuits are that (i.e. terminal sets R
Standby data wire etc.), the initial input voltage of the Charge Pump Converter circuits is Vbus0, the Charge
The initial input current of Pump Converter circuits is Ibus0, then be obtained：
Iout0=Ibus0 formula 1；
Vout0=Vbus0+Ibus0*R formula 2；
Possesses following characteristic due to Charge Pump Converter circuits：
Vbus0=(2*Vbat0)/η formula 3；
Ibus0=(1/2) * Ibat0 formula 4；
Thus can obtain：
Vout0=(2*Vbat0)/η+((1/2) * Ibat0) * R formula 5；
Furthermore, due at original state the moment of charging circuit (switch), the initial charge of the battery to be charged
Electric current Ibat0 can be 0, thus, the adapter need to the charge pump change-over circuit output initial output voltage can be：
Vout0=(2*Vbat0)/η formula 6；
Wherein, the Vout0 represents that the adapter is needed to the Charge Pump Converter circuit outputs
Initial output voltage；The Vbat0 represents the output charging voltage of the battery to be charged；The η represents the Charge
The voltage conversion efficiency of Pump Converter circuits.
That is, the initial output voltage of the adapter generally can be according to the initial charge of the battery to be charged electricity
The step-down of pressure and the Charge Pump Converter circuits is changed to determine, the embodiment of the present invention is not made any to this
Limit.
Further, control the adapter dynamic electric voltage and dynamic current are exported to the charge pump change-over circuit,
May also include：
It is determined that corresponding with the arbitrary current value in the range of the current threshold, adapter is needed to the electric charge
First output voltage of pump change-over circuit output；
On the basis of first output voltage, increasing the adapter according to the second voltage stepping of setting needs to institute
The voltage of charge pump change-over circuit output is stated, until determining voltage threshold of the charging voltage of the battery to be charged in setting
In the range of.
Wherein, the second voltage stepping can be flexibly arranged according to actual conditions, and, the second voltage stepping generally may be used
Less than the first voltage stepping, 100mV, 200mV or 500mV etc. are such as may be configured as, as long as ensure that the institute for determining
Stating adapter needs to meet actual demand i.e. to the initial output voltage of the Charge Pump Converter circuit outputs
Can, this is not repeated.
Need explanation when, it is generally the case that except it can be increased by the second voltage stepping (such as △ V2) as described in
Adapter, can also be sub according to the 3rd for setting first to outside the voltage of the Charge Pump Converter circuit outputs
Voltage steps (such as △ V13) increase the voltage that the adapter needs to the Charge Pump Converter circuit outputs,
So that first sub- voltage range of the charging voltage of the battery to be charged in setting (such as Vbat01≤Vbat≤Vout02)
It is interior；Afterwards, the adaptation can be increased according to the 4th of setting the sub- voltage steps (being less than the 3rd sub- voltage steps, such as V14)
Device needs the voltage to the Charge Pump Converter circuit outputs, until the charging voltage of the battery to be charged
(now, the described second sub- voltage range can be above-mentioned voltage threshold scope, such as Vbat1 for the second sub- voltage range in setting
≤ Vbat≤Vbat2) in.Wherein, the Vbat01 may be typically smaller than the Vbat1, and the Vbat02 may be typically smaller than described
Vbat2, does not repeat to this.
That is, the output voltage of the adapter first can be adjusted using big voltage steps, so that described to be charged
The charging voltage of battery levels off to the voltage threshold scope faster, it is determined that the charging voltage of the battery to be charged reaches soon
The output voltage of adapter described in small voltage step by step modulating during to the voltage threshold scope, can be adopted, is reached so as to shorten
The time of the voltage threshold scope, the efficiency for reaching the voltage threshold scope is improve, and then improve the rate of charging, saved
The charging interval is saved.
For example, the output voltage of the adapter can be increased first according to the stepping of 500mV, it is determined that described to be charged
When the charging voltage of battery is in the range of 4000mV～5000mV, can be described suitable further according to the stepping of 100mV increase
The output voltage of orchestration, until determining the charging voltage of the battery to be charged in the range of 4800mV～5000mV.From
And the output electricity of the adapter when the voltage ratio of the battery to be charged is less, can be increased according to larger voltage steps
Pressure, when the voltage of the battery to be charged is larger, can increase the output electricity of the adapter according to less voltage steps
Pressure, effectively improves charge efficiency, accelerates charging rate, saves the charging interval.
It should be noted that the voltage threshold scope of setting whether is in the charging voltage for scanning the battery to be charged
When, in addition to it can be divided into big voltage steps and small voltage stepping, other voltage steps can be also set, such as middle voltage steps
(can such as be 100mV) etc., as long as the charging voltage by the battery to be charged that can be rapidly and efficiently is determined in the voltage threshold
In the range of value, this is not repeated.
Further, the adapter exports dynamic electric voltage and dynamic current to the charge pump change-over circuit, also wraps
Include：
It is determined that corresponding with any voltage value in the range of the voltage threshold, adapter is needed to the electric charge
Second output voltage of pump change-over circuit output；
On the basis of second output voltage, reducing the adapter according to the tertiary voltage stepping of setting needs to institute
The voltage of charge pump change-over circuit output is stated, until the charging current of the battery to be charged is not more than the current threshold.
Wherein, the tertiary voltage stepping can be flexibly arranged according to actual conditions, and, the tertiary voltage stepping can be with institute
State second voltage stepping and be set to identical, such as may be configured as 100mV, 200mV or 500mV etc., certainly, also can be with described second
Voltage steps are set to difference, as long as ensure that the adapter determined is needed as the Charge Pump
The initial output voltage of Converter circuit outputs meets actual demand, and this is not repeated.
It should be noted that under normal circumstances, except it can be reduced by the tertiary voltage stepping (such as △ V3) as described in
Adapter can be first according to setting to outside the voltage of the Charge Pump Converter circuit outputs, also described the
Five sub- voltage steps (such as △ V15) reduce the adapter to be needed to the Charge Pump Converter circuit outputs
Voltage so that the first current threshold that the charging current of the battery to be charged no more than sets (such as Ibat03)；Afterwards, can root
The adapter is reduced according to the 6th sub- voltage steps (being less than the 5th sub- voltage steps, such as △ V15) of setting needs to institute
The voltage of Charge Pump Converter circuit outputs is stated, until the charging current of the battery to be charged no more than sets
The second current threshold (now, second current threshold can be above-mentioned current threshold, can such as be Ibat3).Wherein, it is described
Ibat03 may be typically smaller than the Ibat3, and the embodiment of the present invention is not repeated to this.
That is, the output voltage of the adapter first can be adjusted using big voltage steps, so that described to be charged
The charging current of battery levels off to the current threshold faster, it is determined that the charging voltage of the battery to be charged reaches institute soon
The output voltage of adapter described in small voltage step by step modulating when stating current threshold, can be adopted, and the electric current is reached so as to shorten
The time of threshold value, the efficiency for reaching the current threshold is improve, and then improve charge efficiency, save the charging interval.
For example, the output voltage of the adapter can be reduced first according to the stepping of 100mV, it is determined that described to be charged
When the charging current of battery is not more than 4000mA, the output voltage of the adapter can be reduced further according to the stepping of 50mV,
Until determining that the charging current of the battery to be charged is not more than 3500mA.So as to the voltage in the battery to be charged is smaller
When, the output voltage of the adapter can be reduced according to larger voltage steps, it is larger in the voltage of the battery to be charged
When, the output voltage of the adapter can be reduced according to less voltage steps, charge efficiency is effectively improved, is accelerated
Charging rate, save the charging interval.
It should be noted that whether scanning the charging current of the battery to be charged not less than the current threshold for setting
When, in addition to it can be divided into big voltage steps and small voltage stepping, other voltage steps can be also set, such as middle voltage steps
(can such as be 80mV) etc., as long as the charging current by the battery to be charged that can be rapidly and efficiently is determined in the current threshold
Left and right, does not repeat to this.
Further, the charge control method may also include：
If it is determined that the initial charge voltage is not more than the voltage threshold, or, the initial charge voltage is more than institute
State voltage threshold and the initial current and be not more than the current threshold, then control on the buck change-over circuit electricity and
Charge pump change-over circuit power down, and the adapter is controlled to buck change-over circuit output fixed voltage and fixed electricity
Stream, to be charged to the battery to be charged by the buck change-over circuit
That is, now, can be directly using existing Buck Switch Charger circuits to the battery to be charged
It is charged, i.e. adapter is to the Buck Switch Charger circuit outputs fixed voltages and fixed current, described
Actual demand of the Buck Switch Charger circuits according to itself dropping voltage characteristic and the battery to be charged, to described
Battery output dynamic electric voltage to be charged and dynamic current, do not repeat to this.
In sum, in embodiments of the present invention, can be in the whole trickle stage charged, charging stage and CV stages
Rear half stage, can be charged to the battery to be charged using existing Buck Switch Charger circuits, entirely filled
In the first half stage in the CC stages and the CV stages of electricity, can wait to fill to described using Charge Pump Converter circuits
Battery is charged, so as to ensure that the flexibility during high efficiency and low current charge during large current charge.In addition, needing
It is noted that the security in order to further improve terminal device in charging process, can also be in the first half stage in CC stages
It is charged to the battery to be charged using Buck Switch Charger circuits, is adopted in the rear half stage in CC stages
Charge Pump Converter circuits are charged to the battery to be charged, and this is not repeated.
It should be noted that treating that terminal device (the concretely rechargeable battery) first connect with described in the adapter
When logical (i.e. the initial time of a charging process), can also charge according only to the control of the initial charge voltage of the battery to be charged
The switching of circuit.Can it is determined that the initial charge voltage be more than as described in voltage threshold when, directly control charge pump conversion electricity
Lu Shang electricity and buck change-over circuit power down；When it is determined that the initial charge voltage is not more than the voltage threshold, directly
Control electric on the buck change-over circuit and charge pump change-over circuit power down.At next collection moment, can be further
The initial charge current of the battery to be charged is gathered, further to control the switching of charging circuit, this is not repeated.
Below, as shown in figure 4, illustrating and by following step to the charge control method described in the embodiment of the present invention
Concrete steps are introduced in detail
Step S41, gathers the Vbat and Ibat of the battery to be charged.
It should be noted that when charging circuit is just accessed, the charging current of the battery to be charged generally can be 0, i.e.,
Ibat is 0；The Vbat in the pond to be charged generally can be the current voltage of the battery to be charged, can such as be 3.5V etc..
Step S42, judges whether the Vbat is not more than the voltage threshold Vbat_th of setting.
Wherein, the voltage threshold Vbat_th is flexibly arranged generally according to actual demand, such as may be configured as 3.2V, 3.5 or
Person 3.8V etc., as long as disclosure satisfy that actual demand, does not repeat to this.
Step S43, however, it is determined that the Vbat≤Vbat_th, you can the charging stage for illustrating the battery to be charged can be
Trickle stage or charging stage, then control electricity on Buck Switch Charger circuits.
Step S44, the control adapter is to the Buck Switch Charger circuit outputs fixed voltages and admittedly
Determine electric current, so that the adapter is filled to the battery to be charged by the Buck Switch Charger circuits
Electricity.
Step S45, however, it is determined that the Vbat ＞ Vbat_th, you can the charging stage for determining the battery to be charged can be
CC stages (or the rear half stage in CC stages) or CV stages, then control electricity on Charge Pump Converter circuits.
As in embodiments of the present invention, the Vbat_th can generally be not less than the starting voltage in CC stages and (with 3V be
Example), then：
As the Vbat_th=3V, however, it is determined that during the Vbat ＞ Vbat_th, you can determine the battery to be charged
Charging stage be CC stages or CV stages, now can control electricity on Charge Pump Converter circuits；
As the Vbat_th=3.5V, however, it is determined that during the Vbat ＞ Vbat_th, you can determine the electricity to be charged
Rear half stage or CV stage of the charging stage in pond for the CC stages, now, can control Charge Pump Converter circuits
Upper electricity.And between 3V～3.5V, electricity on Buck Switch Charger circuits can be still controlled, this is not repeated.
Step S46, according to the Vbat of the battery to be charged, determines the Vout0 of the adapter.
Still by taking above-mentioned example as an example, then can pass through the Vout0 that aforementioned formula 6 is calculated the adapter, now, if false
If the step-down efficiency eta of the Charge Pump Converter circuits can 97%, then can obtain the Vout0=7.22V
(by taking the Vbat_th=3.5V as an example).
Step S47, on the basis of Vout0, adjusts the output voltage of the adapter, until determining that the Ibat meets
Ibat1≤Ibat≤Ibat2.That is, it is determined that adjusting the output voltage of the adapter, until determining filling for the battery to be charged
The electric stage enters the later stage in CC stages.
Still by taking above-mentioned example as an example, it is assumed that the first sub- voltage steps △ V1 can be 100mV, the second sub- voltage step
It can be 20mV to enter △ V2, then the output voltage of the adapter can be stepped up according to the △ V1, while the detection Ibat
Size, if detect the Ibat in the first current range (such as Ibat01≤Ibat≤Ibat02) it is interior when, then with △ V2
Step up the Vout, and still detect the size of the Ibat, until determine the Ibat in the second current range (
For the current threshold scope, such as Ibat1≤Ibat≤Ibat2) in.Wherein, the Ibat01 may be typically smaller than described
Ibat1, the Ibat02 may be typically smaller than the Ibat2, and this is not repeated.
In addition, it is necessary to explanation, △ V1, △ V2, Ibat01, Ibat02, Ibat1 described in the above and
Ibat2 flexibly can be arranged according to the actual requirements, and, for the safety for ensureing to charge, the △ V1's and △ V2 sets
Put and guarantee Ibat≤Ibat2, the embodiment of the present invention is not repeated to this.
In addition, it is necessary to explanation, when it is determined that the Ibat is in the range of the current threshold, can also be further true
Fixed corresponding with the arbitrary current value in the range of the current threshold, adapter is needed to the Charge Pump
First output voltage Vout1 of Converter circuit outputs.
Step S48, on the basis of Vout1, adjusts the output voltage of the adapter, until determining that the Vbat meets
Vbat1≤Vbat≤Vbat2.That is, the output voltage of the adapter is adjusted, until determining the charging rank of the battery to be charged
Section enters the early stage (i.e. first half stage) in CV stages.
Still by taking above-mentioned example as an example, it is assumed that the 3rd sub- voltage steps △ V3 can be 20mV, the 4th sub- voltage step
It can be 10mV to enter △ V4, then the output voltage of the adapter can be stepped up according to the △ V3, while the detection Vbat
Size, if detect the Vbat in first voltage range (such as Vbat01≤Vbat≤Vbat02) it is interior when, then with △ V4
Step up the Vout, and still detect the size of the Vbat, until determine the Vbat in second voltage scope (
For the current threshold scope, such as Vbat1≤Vbat≤Vbat2) in.Wherein, the Vbat01 may be typically smaller than described
Vbat1, the Vbat02 may be typically smaller than the Vbat2, and this is not repeated.
In addition, it is necessary to explanation, when it is determined that the Vbat is in the range of the voltage threshold, can also be further true
Fixed corresponding with any voltage value in the range of the voltage threshold, adapter is needed to the Charge Pump
Second output voltage Vout2 of Converter circuit outputs.
Furthermore, the △ V3, △ V4, Vbat01, Vbat02, Vbat1 and Vbat2 described in the above can be according to reality
Border demand is flexibly arranged, and, for the safety for ensureing to charge, the setting of the △ V3 and the △ V4 generally also needs to guarantee
Vbat≤Vbat2, the embodiment of the present invention are not repeated to this.
Step S49, on the basis of Vout2, adjusts the output voltage of the adapter, until determining Ibat1≤Ibat3.
That is, it is determined that the output voltage of the adjustment adapter, enters the CV stages up to the charging stage for determining the battery to be charged
Later stage (i.e. rear half stage).
Still by taking above-mentioned example as an example, it is assumed that the 5th sub- voltage steps △ V5 can be 20mV, the 6th sub- voltage step
It can be 10mV to enter △ V4, then the output voltage of the adapter can be gradually reduced according to the △ V5, while the detection Ibat
Size, if detect the Ibat and be not more than the first current threshold (such as Ibat≤Ibat03), then gradually reduced with △ V6
The Vout, and the size of the Ibat is still detected, until it (can be described to determine that the Ibat is not more than the second current threshold
Current threshold, such as Ibat≤Ibat3) in.Wherein, the Ibat03 can be generally greater than the Ibat3, and this is not repeated.
Further, it is assumed that the battery charge controller can be the integrating device in terminal device, then the embodiment of the present invention
Described in the structure of charging system generally can be as shown in figure 5, which be the first charging system described in the embodiment of the present invention
Concrete structure schematic diagram.Specifically, as shown in figure 5, the charging system specifically may include following module：
AC-DC adapters 51, terminal device 52, wherein, the terminal device 52 generally may include Buck Switch
Charger circuit modules 521 (as Buck converters), Charge Pump Converter circuit modules 522 are (as
Charge Pump converters), charge control module 523 (specifically may include processor and transceiver) and battery 524.Its
In, realize that the major part for charging is Buck Switch Charger circuit modules 521 and Charge Pump Converter
Circuit module 522.The charge control module 523 (concretely its internal processor) can be responsible for controlling Buck Switch
Switching between Charger circuit modules 521 and Charge Pump Converter circuit modules 522, and terminal can be responsible for
Communication between equipment 52 and AC-DC adapters 51.Certainly, it should be noted that the charge control module 523 (specifically may be used
For the transceiver of its inside) can also be responsible for translating the communication information between the terminal device 52 and the AC-DC adapters 51.
Likewise, it is assumed that the battery charge controller can be the integrating device in the adapter, then the embodiment of the present invention
Described in the structure of charging system generally can be as shown in fig. 6, which be the concrete of charging system described in the embodiment of the present invention
Structural representation.Specifically, as shown in fig. 6, the charging system specifically may include：
AC-DC adapters 61, terminal device 62, wherein, the AC-DC adapters 61 generally may include charge control module
611 (specifically may include processor and transceiver)；The terminal device 62 generally may include that Buck Switch Charger are electric
Road module 621 (as Buck converters), (as Charge Pump turn Charge Pump Converter circuit modules 622
Parallel operation) and battery 623.Wherein, realize that the major part for charging is 621 He of Buck Switch Charger circuit modules
Charge Pump Converter circuit modules 622.The charge control module 611 (concretely its internal processor)
Can be responsible for controlling Buck Switch Charger circuit modules 621 and Charge Pump Converter circuit modules 622 it
Between switching, and the communication that can be responsible between the adapter 61 and terminal device 62.Certainly, it should be noted that described
Charge control module 611 (concretely its internal transceiver) can be also responsible for translating the adapter 61 and the terminal device
The communication information between 62.
Further, likewise, it is assumed that the battery charge controller can be independently of the adapter and the terminal
The self-contained unit of equipment, then the structure of the charging system described in the embodiment of the present invention generally can be as shown in fig. 7, which be the present invention
The concrete structure schematic diagram of the charging system described in embodiment.Specifically, as shown in fig. 7, the charging system can specifically be wrapped
Include：
AC-DC adapters 71, terminal device 72 and battery charge controller 73, wherein, the terminal device 72 generally may be used
Including Buck Switch Charger circuit modules 721 (as Buck converters), Charge Pump Converter circuits
Module 722 (as Charge Pump converters) and battery 723.Wherein, realize that the major part for charging is Buck
Switch Charger circuit modules 721 and Charge Pump Converter circuit modules 722.The battery charge controller
73 (concretely its internal processor) can be responsible for controlling Buck Switch Charger circuit modules 721 and Charge
Switching between Pump Converter circuit modules 722, and it is suitable with the AC-DC to be responsible for the battery charge controller 73
Communication between orchestration 71, or the battery charge controller 73 and the terminal device 72. certainly, it should be noted that institute
State battery charge controller 73 (concretely its internal transceiver) can also be responsible for translating the AC-DC adapters 71 and the end
The communication information between end equipment 72.
The embodiment of the present invention one provides a kind of charge control method, the initial charge voltage of battery to be charged can be gathered with
And initial charge current；And if it is determined that the initial charge voltage is more than the voltage threshold and the initial charge current for setting
More than the current threshold of setting, then electric on the charge pump change-over circuit and buck change-over circuit power down is controlled, and
Control adapter exports dynamic electric voltage and dynamic current to the charge pump change-over circuit, with by charge pump conversion electricity
Described in road direction, battery to be charged charges.Compared to prior art, as charge pump change-over circuit is employed in large current charge,
So as to effectively improving the step-down conversion efficiency of charging, shortening the charging interval；And, due to not wrapping in charge pump change-over circuit
Containing the inductance component for easily producing heat energy, thus can also further solve the heating problem of circuit during charging.
Embodiment two：
Based on embodiment of the present invention identical inventive concept, the embodiment of the present invention two there is provided a kind of charge control fill
Put, as shown in figure 8, which is the structural representation of the battery charge controller described in the embodiment of the present invention two.Specifically, by Fig. 8
Understand, the battery charge controller may include：
Acquisition module 81, can be used to gather the initial charge voltage and initial charge current of battery to be charged；
Control module 82, can be used to judging the initial charge voltage more than the voltage threshold of setting and described initially fills
Current threshold of the electric current more than setting, if so, then controls electricity and buck change-over circuit power down on charge pump change-over circuit,
And adapter is controlled to charge pump change-over circuit output dynamic electric voltage and dynamic current, to be changed by the charge pump
Circuit charges to the battery to be charged.
Specifically, the control module 82, is particularly used according to the initial charge voltage, determines that the adapter is needed
Will be to the initial output voltage of charge pump change-over circuit output；And, on the basis of the initial output voltage, according to setting
Fixed first voltage stepping increases the voltage that the adapter needs to the charge pump change-over circuit to export, until determining described
In the range of current threshold of the charging current of battery to be charged in setting.
Specifically, the control module 82, is particularly used in and determines that the adapter is needed to described by equation below
The initial output voltage of charge pump change-over circuit output：
Vout0=(2*Vbat0)/η；
Wherein, the Vout0 represents that the adapter needs the initial output electricity to charge pump change-over circuit output
Pressure；The Vbat0 represents the initial charge voltage of the battery to be charged；The η represents the electricity of the charge pump change-over circuit
Pressure conversion efficiency.
Specifically, the control module 82, is also particularly used in the arbitrary electric current determined with the range of the current threshold
Value it is corresponding, the adapter need to the charge pump change-over circuit output the first output voltage；And, with described
On the basis of one output voltage, increasing the adapter according to the second voltage stepping of setting needs to the charge pump change-over circuit
The voltage of output, until determining in the range of voltage threshold of the charging voltage of the battery to be charged in setting.
Specifically, the control module 82, is also particularly used in any voltage determined with the range of the voltage threshold
Value it is corresponding, the adapter need to the charge pump change-over circuit output the second output voltage；And, with described
On the basis of two output voltages, reducing the adapter according to the tertiary voltage stepping of setting needs to the charge pump change-over circuit
The voltage of output, until the charging current of the battery to be charged is not more than first current threshold.
Specifically, the control module 82, it may also be used for if it is determined that the initial charge voltage is not more than the voltage threshold
Value, or, the initial charge voltage is more than the voltage threshold and the initial current is not more than the current threshold, then
Electricity and charge pump change-over circuit power down on the buck change-over circuit are controlled, and it is solid to buck change-over circuit output
Determine voltage and fixed current, to charge to the battery to be charged by the buck change-over circuit.
It should be noted that the battery charge controller can be integrated in the adapter as integrating device or terminal sets
Integrating device in standby, also can be used as the self-contained unit independently of the adapter and the terminal device.
The embodiment of the present invention two provides a kind of battery charge controller, including for gathering the initial charge of battery to be charged
The acquisition module of voltage and initial charge current, and for if it is determined that the initial charge voltage is more than the voltage threshold for setting
Value, and the initial charge current more than setting current threshold, then control charge pump change-over circuit on electricity and buck turn
Circuit power down is changed, and controls adapter and dynamic electric voltage and dynamic current are exported to the charge pump change-over circuit, with by institute
State the control module that charge pump change-over circuit charges to the battery to be charged.Compared to prior art, due to filling in high current
Efficient charge pump change-over circuit is employed when electric, so as to effectively improving step-down conversion efficiency, accelerating charging rate, contracting
The short charging interval；And, due to the inductance component not comprising easily generation heat energy in charge pump change-over circuit, thus one can also be entered
The heating problem of circuit when step solves to charge.
It will be understood by those skilled in the art that embodiments of the invention can be provided as method, device (equipment), or computer journey
Sequence product.Therefore, the present invention can adopt complete hardware embodiment, complete software embodiment or with reference to software and hardware in terms of
The form of embodiment.And, the present invention can be using the calculating for wherein including computer usable program code at one or more
The computer program implemented in machine usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.)
The form of product.
The present invention is the flow chart with reference to method according to embodiments of the present invention, device (equipment) and computer program
And/or block diagram is describing.It should be understood that can be by each flow process in computer program instructions flowchart and/or block diagram
And/or the combination of square frame and flow chart and/or flow process and/or square frame in block diagram.These computer programs can be provided to refer to
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is made to produce
One machine so that produced for realizing by the instruction of computer or the computing device of other programmable data processing devices
The device of the function of specifying in one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory is produced to be included referring to
Make the manufacture of device, the command device realize in one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or
The function of specifying in multiple square frames.
These computer program instructions can be also loaded in computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented process, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow process of flow chart or multiple flow processs and/or block diagram one
The step of function of specifying in individual square frame or multiple square frames.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into the had altered of the scope of the invention and change.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (12)
1. a kind of charge control method, it is characterised in that include：
Gather the initial charge voltage and initial charge current of battery to be charged；
Judge voltage threshold and the initial charge current of the initial charge voltage more than setting more than the current threshold for setting
Value；
If so, electricity and buck change-over circuit power down on charge pump change-over circuit is then controlled, and adapter is controlled to the electricity
Lotus pump change-over circuit exports dynamic electric voltage and dynamic current, with by the charge pump change-over circuit to the battery to be charged
Charge.
2. charge control method as claimed in claim 1, it is characterised in that the control adapter is changed to the charge pump
Circuit output dynamic electric voltage and dynamic current, including：
According to the initial charge voltage, determine that the adapter needs the initial output to charge pump change-over circuit output
Voltage；
On the basis of the initial output voltage, increasing the adapter according to the first voltage stepping of setting needs to the electricity
The voltage of lotus pump change-over circuit output, until determining current threshold scope of the charging current of the battery to be charged in setting
It is interior.
3. charge control method as claimed in claim 2, it is characterised in that according to the initial charge voltage, it is determined that described
Adapter needs the initial output voltage to charge pump change-over circuit output, is obtained by equation below：
Vout0=(2*Vbat0)/η；
Wherein, the Vout0 represents that the adapter needs the initial output voltage to charge pump change-over circuit output；Institute
State the initial charge voltage that Vbat0 represents the battery to be charged；The η represents the voltage conversion of the charge pump change-over circuit
Efficiency.
4. charge control method as claimed in claim 2, it is characterised in that the control adapter is changed to the charge pump
Circuit output dynamic electric voltage and dynamic current, also include：
It is determined that corresponding with the arbitrary current value in the range of the current threshold, adapter needs to the charge pump to turn
Change the first output voltage of circuit output；
On the basis of first output voltage, increasing the adapter according to the second voltage stepping of setting needs to the electricity
The voltage of lotus pump change-over circuit output, until determining voltage threshold scope of the charging voltage of the battery to be charged in setting
It is interior.
5. charge control method as claimed in claim 4, it is characterised in that the adapter is to the charge pump change-over circuit
Output dynamic electric voltage and dynamic current, also include：
It is determined that corresponding with any voltage value in the range of the voltage threshold, adapter needs to the charge pump to turn
Change the second output voltage of circuit output；
On the basis of second output voltage, reducing the adapter according to the tertiary voltage stepping of setting needs to the electricity
The voltage of lotus pump change-over circuit output, until the charging current of the battery to be charged is not more than the current threshold.
6. charge control method as claimed in claim 1, it is characterised in that the charge control method also includes：
If it is determined that the initial charge voltage is not more than the voltage threshold, or, the initial charge voltage is more than the electricity
Pressure threshold value and the initial current no more than current threshold, then control electricity and electric charge on the buck change-over circuit
Pump change-over circuit power down, and the adapter is controlled to buck change-over circuit output fixed voltage and fixed current,
To be charged to the battery to be charged by the buck change-over circuit.
7. a kind of battery charge controller, it is characterised in that include：
Acquisition module, for gathering the initial charge voltage and initial charge current of battery to be charged；
Control module, for judging that the initial charge voltage is more than the voltage threshold of setting and the initial charge current is big
In the current threshold of setting, electricity and buck change-over circuit power down on charge pump change-over circuit is if so, then controlled, and is controlled suitable
Orchestration exports dynamic electric voltage and dynamic current to the charge pump change-over circuit, with by the charge pump change-over circuit to institute
State battery to be charged to charge.
8. battery charge controller as claimed in claim 7, it is characterised in that
The control module, specifically for according to the initial charge voltage, determining that the adapter is needed to the charge pump
The initial output voltage of change-over circuit output；And, on the basis of the initial output voltage, according to the first voltage step of setting
Enter to increase the voltage that the adapter needs to the charge pump change-over circuit to export, until determining filling for the battery to be charged
In the range of current threshold of the electric current in setting.
9. battery charge controller as claimed in claim 8, it is characterised in that
The control module, it is defeated to the charge pump change-over circuit specifically for determining that the adapter needs by equation below
The initial output voltage for going out：
Vout0=(2*Vbat0)/η；
Wherein, the Vout0 represents that the adapter needs the initial output voltage to charge pump change-over circuit output；Institute
State the initial charge voltage that Vbat0 represents the battery to be charged；The η represents the voltage conversion of the charge pump change-over circuit
Efficiency.
10. battery charge controller as claimed in claim 8, it is characterised in that
The control module, it is corresponding with the arbitrary current value in the range of the current threshold, described also particularly useful for determining
Adapter needs the first output voltage to charge pump change-over circuit output；And, with first output voltage as base
Standard, increases the voltage that the adapter needs to the charge pump change-over circuit to export according to the second voltage stepping of setting, directly
It is in the range of the voltage threshold of setting to the charging voltage for determining the battery to be charged.
11. battery charge controllers as claimed in claim 10, it is characterised in that
The control module, it is corresponding with any voltage value in the range of the voltage threshold, described also particularly useful for determining
Adapter needs the second output voltage to charge pump change-over circuit output；And, with second output voltage as base
Standard, reduces the voltage that the adapter needs to the charge pump change-over circuit to export according to the tertiary voltage stepping of setting, directly
Charging current to the battery to be charged is not more than first current threshold.
12. battery charge controllers as claimed in claim 7, it is characterised in that
The control module, is additionally operable to if it is determined that the initial charge voltage is not more than the voltage threshold, or, it is described initial
Charging voltage is more than the voltage threshold and the initial current is not more than the current threshold, then control the buck and turn
Electricity and charge pump change-over circuit power down on circuit are changed, and fixed voltage and fixed electricity are exported to the buck change-over circuit
Stream, to be charged to the battery to be charged by the buck change-over circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611088182.8A CN106532831B (en) | 2016-11-30 | 2016-11-30 | A kind of charge control method and device |
| PCT/CN2017/110437 WO2018099257A1 (en) | 2016-11-30 | 2017-11-10 | Charging control method, apparatus, computing device and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611088182.8A CN106532831B (en) | 2016-11-30 | 2016-11-30 | A kind of charge control method and device |
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| Publication Number | Publication Date |
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| CN106532831A true CN106532831A (en) | 2017-03-22 |
| CN106532831B CN106532831B (en) | 2018-06-01 |
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| CN201611088182.8A Active CN106532831B (en) | 2016-11-30 | 2016-11-30 | A kind of charge control method and device |
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| WO (1) | WO2018099257A1 (en) |
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| CN108233453A (en) * | 2017-07-31 | 2018-06-29 | 珠海市魅族科技有限公司 | A kind of charging method, device and electronic equipment |
| CN108233454A (en) * | 2017-07-31 | 2018-06-29 | 珠海市魅族科技有限公司 | A kind of wireless charging circuit, system, method and electronic equipment |
| CN108233456A (en) * | 2017-07-31 | 2018-06-29 | 珠海市魅族科技有限公司 | A kind of wireless charging circuit, system, method and electronic equipment |
| CN108233455A (en) * | 2017-07-31 | 2018-06-29 | 珠海市魅族科技有限公司 | A kind of wireless charging circuit, method, system and electronic equipment |
| CN108233506A (en) * | 2017-07-31 | 2018-06-29 | 珠海市魅族科技有限公司 | A kind of charging circuit, electronic equipment and wireless charging system |
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| WO2018099257A1 (en) * | 2016-11-30 | 2018-06-07 | 珠海市魅族科技有限公司 | Charging control method, apparatus, computing device and storage medium |
| US11342774B2 (en) | 2017-06-19 | 2022-05-24 | Huawei Technologies Co., Ltd. | Power conversion circuit, and charging apparatus and system |
| EP3627676A4 (en) * | 2017-06-19 | 2020-06-24 | Huawei Technologies Co., Ltd. | Power conversion circuit, and charging apparatus and system |
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| CN109510272B (en) * | 2018-12-07 | 2022-04-29 | 青岛海信移动通信技术股份有限公司 | Charging control method and charging circuit |
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| CN112636403A (en) * | 2019-09-24 | 2021-04-09 | 北京小米移动软件有限公司 | Wireless charging control method and device and computer storage medium |
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| CN113872417A (en) * | 2020-06-12 | 2021-12-31 | 华为技术有限公司 | DVFS power supply system and DVFS power supply control method |
| CN113507149A (en) * | 2021-06-29 | 2021-10-15 | 珠海智融科技有限公司 | Mixed-mode charging circuit and charging method |
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| CN106532831B (en) | 2018-06-01 |
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