CN106410909A - Charging device and charging method for mobile terminal - Google Patents
Charging device and charging method for mobile terminal Download PDFInfo
- Publication number
- CN106410909A CN106410909A CN201610968536.1A CN201610968536A CN106410909A CN 106410909 A CN106410909 A CN 106410909A CN 201610968536 A CN201610968536 A CN 201610968536A CN 106410909 A CN106410909 A CN 106410909A
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- output
- mobile terminal
- current
- charging
- charging device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000033228 biological regulation Effects 0.000 claims abstract description 29
- 230000009467 reduction Effects 0.000 claims description 5
- UGAJKWZVPNVCIO-UHFFFAOYSA-N Terminalin Chemical compound O1C(=O)C(C2=3)=C(C4=C(O)C(O)=C(O)C=C4C(=O)O4)C4=C(O)C=3OC(=O)C3=C2C1=C(O)C(OC1=O)=C3C2=C1C=C(O)C(O)=C2O UGAJKWZVPNVCIO-UHFFFAOYSA-N 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- H01M10/443—Methods for charging or discharging in response to temperature
-
- H02J7/0091—
-
- 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 present invention provides a charging device for a mobile terminal. The device comprises: a current regulation unit configured to reduce the output current of the charging device to a first current I1 and allow the charging device to output a first output power P1; and a voltage regulation unit configured to reduce the output voltage Vbus of the charging device, wherein when the output voltage Vbus is reduced, the current regulation unit rises the output current to a second current I2 to allow the charging device to output a second output power P2 being equal to the first output power P1, and the charging efficiency [Mu]2 of the second output power P2 is larger than the charging efficiency [Mu]1 of the first output power P1. The present invention further provides a charging method for a mobile terminal. Through adoption of the technical scheme, the charging device and charging method for the mobile terminal can reduce the temperature of the mobile terminal at charging and prolong the service life of the mobile terminal in the condition without influencing the charging time and the charging efficiency.
Description
Technical field
The present invention relates to field of mobile terminals, more particularly, to a kind of charging device for mobile terminal and charging method.
Background technology
With the continuous development of communication technology, mobile terminal affects communication and exchanges in every field.As mobile class
Equipment, its endurance be always user part of concern.When mobile terminal uses for a long time, need to long-time
The battery of electric discharge is charged.With the increasingly quickening of rhythm of life, user there has been higher requirement for the charging interval,
But rapidly charge mode needs larger charge power, so that battery and mobile terminal heating, and when temperature is too high
The service life of battery in mobile terminal can be shortened.
Accordingly, it would be desirable to a kind of new charging device and charging method, charging interval and charge efficiency can not affected
Under the conditions of, reduce the temperature of mobile terminal when charging, extend the service life of mobile terminal.
Content of the invention
In order to overcome above-mentioned technological deficiency, it is an object of the invention to provide a kind of charging device for mobile terminal and
Charging method, on the basis of possessing quick charge, is effectively reduced the temperature rise to mobile terminal during large current charge.
The invention discloses a kind of charging device for mobile terminal, including：Current regulation unit, reduces described charging
Device output current to one first electric current I1, make described charging device export one first output P1；Voltage regulation unit,
Reduce the output voltage V of described charging devicebus；As described output voltage VbusDuring reduction, described current regulation unit raises institute
State and output current to one second electric current I2, make described charging device output one and described first output P1Equal second is defeated
Go out power P2, and described second output P2Charge efficiency μ2More than described first output P1Charge efficiency μ1.
Preferably, described charging device inputs input power P to described mobile terminalin, described input power Pin=
Vbat*I/μ2.
Preferably, output voltage V described in described voltage regulation unit linear regulationbus, described output voltage VbusRegulation
Gear is 0.5V.
The invention also discloses a kind of charging method for mobile terminal, comprise the following steps：
Step 1：Reduce charge when output current to one first electric current I1, and export one first output P1；
Step 2：Reduce output voltage V when chargingbus；
Step 3：Rise high charge when output current to one second electric current I2, and export one and described first output P1
The second equal output P2, wherein said second output P2Charge efficiency μ2More than described first output P1
Charge efficiency μ1.
Preferably, in described step 1, also include：The cell voltage V being had according to described mobile terminalbat, calculate input
Electric current I=P1*μ1/Vbat.
Preferably, in described step 3, also include：According to input current I, calculate described second output P2=Vbat*
I/μ2.
Preferably, in described step 1, also include：When the temperature of described mobile terminal reaches its default temperature limit value, open
Move described current regulation unit to realize described first electric current I1.
Preferably, in described step 2, output voltage V described in described voltage regulation unit linear regulationbus, described output electricity
Pressure VbusRegulation stall be 0.5V.
After employing technique scheme, compared with prior art, have the advantages that：
1. charging device charge efficiency when filling soon is higher, and the charging interval shortens；
2. effective temperature reducing mobile terminal when charging, extends the service life of battery in mobile terminal.
Brief description
Fig. 1 meets the charge efficiency of charging device and output voltage V in one embodiment of the present inventionbusRelation illustrate
Figure；
When Fig. 2 is to meet that in one embodiment of the present invention, mobile terminal is in different temperatures, input current I and output electricity
Pressure VbusRelation；
Fig. 3 is the schematic flow sheet meeting charging method in one embodiment of the present invention.
Specific embodiment
Advantages of the present invention is expanded on further below in conjunction with accompanying drawing and specific embodiment.
In one embodiment of the present invention, charging device is used for mobile terminal is carried out with the supplement of electric energy.This charging device
Inside include：
- charging chip
Charging chip is built-in with logic control element, can issue control instruction to the miscellaneous part in charging device, to control
Charging process processed.
- current regulation unit
Current regulation unit, in charging device, can be adjusted to the electric current of the outside output of charging device, for example, rise
High or reduce, when the mainboard of mobile terminal or top surface temperature are higher, control element such as the CPU of mobile terminal will detect shifting
The temperature of dynamic terminal, and temperature too high, exceed certain predetermined threshold value when, charging chip receive from CPU instruction so that charge
Device reduces to itself output current, now charging device to mobile terminal export for one first electric current I1, flowed by fall
Mobile terminal is carried out lower the temperature for the first time.Therefore, there is this first electric current I1Under, charging device is to the mobile end being connected electrically
End output the first output P1.Battery due to comprising in mobile terminal has the cell voltage V charging when using in itselfbat
And input current I when charging, according to the first output P now1, as build-in attribute cell voltage VbatAnd charge
Chip is in the first output P1Lower had charge efficiency μ1, input current I=P can be calculated1*μ1/Vbat, this input
Electric current I is also when mobile terminal is in charged state, and charging device inputs to the electric current of battery of mobile terminal.
- voltage regulation unit
Voltage regulation unit in charging device, when current regulation unit carries out above-mentioned according to the temperature rise of mobile terminal
After once lowering the temperature, voltage regulation unit receives the instruction of charging chip, will further decrease the output voltage V of charging devicebus.
Meanwhile, unaffected for ensureing charging rate, after voltage regulation unit carries out above-mentioned pressure regulation, voltage regulation unit will be right again
Output current is changed, and now, will raise the first electric current I1To the second electric current I2So that charging device exports to mobile terminal
One second output P2, and the computing formula according to output P=U*I, the second electric current I2Compared to the first electric current I1Change
Change amount should meet the first output P1With the second output P2Equal.For example, when carrying out dropping stream for the first time, output voltage
VbusFor 12V, the first electric current I1For 1.5A, then the first output P1For 18W.Then voltage regulation unit is by output voltage Vbus
It is adjusted to 10V, then for meeting the second output P2Still with the first output P1Equal, it is all 18W, current regulation unit should
The second electric current I that charging device is exported2It is adjusted to 1.8A.
Refering to Fig. 1, it is the charging chip including in charging device in different output current and output voltage VbusUnder charging
Efficiency change figure, this in figure, abscissa is the output current of charging device, in the different conditions of above-mentioned charging device, respectively
For the first electric current I1And the second electric current I2, vertical coordinate is then different output voltage VbusUnder charge efficiency value.In this Fig. 1 respectively with
Output voltage V in embodimentbusIt is example for 12V, 9V, 5V, as output voltage VbusDuring for 12V, in FIG with continuous broken line table
Show, as output voltage VbusDuring for 9V, represented with being interrupted broken line in FIG, as output voltage VbusDuring for 5V, in FIG with point
Line represents.Would know that from Fig. 1, under the conditions of output current identical, as output voltage VbusDuring reduction, charging device has
Charge efficiency higher.According to the configuration of above-described embodiment, output voltage VbusAfter reduction, the second charge efficiency of charging device
μ2More than output voltage VbusThe first charge efficiency μ before reduction1, then input power P according to input mobile terminalin=Vbat*
I/ μ, when charge efficiency is bigger, input power PinLess, that is, the second charge efficiency μ2Under input power PinFill less than first
Electrical efficiency μ1Under input power Pin.It is understood that working as input power PinDuring reduction, the temperature rise at mobile terminal reduces,
Thus completing second cooling to mobile terminal.
As described in above-described embodiment, cooling for the first time is realized by the fall flow control of current regulation unit, triggers this electricity
The mechanism of stream adjustment unit is optionally by default one warm limit value in movement, such as 40 DEG C, 42 DEG C etc., when mobile terminal certain
Part such as mainboard, when reaching this warm limit value at fuselage, by charging chip control electric current unit starting, output current fall is flow to the
One electric current I1.Other triggerings as controlled fall stream by charging interval, charge capacity percentage ratio, equally achievable.
In one preferred embodiment, voltage regulation unit controls output voltage VbusMagnitude of voltage, can be with every 0.5V for one grade
Adjust, under configuration, user can arrange preferably output voltage V according to the suitability of different mobile terminalbusValue, with protect
While card charging rate, farthest reduce the temperature at mobile terminal.
Refering to Fig. 2, when being that mobile terminal is in different temperatures, input current I and output voltage VbusRelation.This in figure
The technical solution adopted in the present invention and existing scheme are formed in same table, show that mobile terminal is under different temperatures
When, charging device, according to the different examples of configuration adjustment output voltage of the present invention, can be seen that from this table, moves in prior art
When the temperature rise of terminal is too high, charging device will not take measures until filling end soon, and in the present invention, can be according to mobile terminal
Temperature suitably adjusts output voltage Vbus, to reduce the temperature rise bringing due to quick charge.
When following table 1 shows that prior art is compared with one embodiment of the invention, mobile terminal table under the different charging intervals
The temperature that face is monitored, can significantly as seen from Table 1, and in the present invention, the required charging interval is same as the prior art, but surface
The temperature rise of temperature reduces 0.6 degree, and for user, the temperature that can experience mobile terminal is in tolerance interval.
| Charging interval | Prior art (DEG C) | The present invention (DEG C) |
| 10 minutes | 38.60 | 38.50 |
| 20 minutes | 39.70 | 39.70 |
| 30 minutes | 40.40 | 39.90 |
| 40 minutes | 40.70 | 40.10 |
| 50 minutes | 40.60 | 40.10 |
| 60 minutes | 38.30 | 38.60 |
Table 1
Refering to Fig. 3, the charging method schematic flow sheet of the mobile terminal providing for the present invention, the method includes following step
Suddenly：
S1：The output current of charging device passes through charging chip or the current regulating device of setting reduces, until the first electricity
Stream I1, in this first electric current I1Under, export the first output P1；
S2：Output voltage V when charging is reduced by the voltage regulator device of charging chip or settingbus；
S3：Current regulating device again by charging chip or setting rises High Output Current, until the second electric current I2,
This second electric current I2Under, export the second output P2, first output P constant for guarantee charging rate1With the second output
Power P2Equal.Simultaneously as output voltage VbusReduce, the second output P2Charge efficiency μ2More than the described first output
Power P1Charge efficiency μ1.
In S1, may also include S1-1:The cell voltage V being had according to mobile terminalbat, calculate input current I=P1*μ1/
Vbat, to know the input current I that mobile terminal is received in charging process.
Further, in S3, according to above-mentioned input current I, can calculate charging device to mobile terminal input defeated
Enter power Pin, specifically input power PinFor Pin=Vbat*I/μ2It is to be understood that when being not carried out S2, mobile terminal connects
Input power P receivedinFor Pin=Vbat*I/μ1, due to the second output P2Charge efficiency μ2More than described first output work
Rate P1Charge efficiency μ1So that input power P after execution S2inDiminish, thus reducing the temperature rise at mobile terminal.
Similarly, as previously described, in alternative embodiment, temperature can be set before S1 at charging device or mobile terminal
Limit value, only when the temperature of mobile terminal reaches above-mentioned temperature limit value, executes S1.
Optional or preferably, or in S2, the regulation of output voltage is linear, and each gear is spaced 0.5V.It is appreciated that
, gear setting also optional 0.3V, 1V etc., therefore not to repeat here.
For each embodiment of the method aforesaid, in order to be briefly described, therefore it is all expressed as a series of combination of actions,
But those skilled in the art should know, the application is not limited by described sequence of movement, because according to the application,
Certain some step can be carried out using other orders or simultaneously.Secondly, those skilled in the art also should know, in description
Described embodiment belongs to preferred embodiment, necessary to involved action and unit not necessarily the application.
One of ordinary skill in the art will appreciate that realizing all or part of flow process in above-described embodiment method, it is permissible
Instruct related hardware to complete by computer program, described program can be stored in a computer read/write memory medium
In, this program is upon execution, it may include as the flow process of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, abbreviation RAM) etc..
Above charging method a kind of disclosed in the embodiment of the present invention and device are described in detail, above disclosed
It is only present pre-ferred embodiments, certainly the interest field of the present invention can not be limited with this, therefore according to right of the present invention
Require made equivalent variations, still belong to the scope that the present invention is covered.
Claims (8)
1. a kind of charging device for mobile terminal is it is characterised in that include：
Current regulation unit, that reduces described charging device outputs current to one first electric current I1, make described charging device output one
First output P1；
Voltage regulation unit, reduces the output voltage V of described charging devicebus；
As described output voltage VbusDuring reduction, described in described current regulation unit rising, output current to one second electric current I2, make
Described charging device output one and described first output P1The second equal output P2, and described second output
P2Charge efficiency μ2More than described first output P1Charge efficiency μ1.
2. charging device as claimed in claim 1 it is characterised in that
Described charging device inputs input power P to described mobile terminalin, described input power Pin=Vbat*I/μ2.
3. charging device as claimed in claim 1 it is characterised in that
Output voltage V described in described voltage regulation unit linear regulationbus, described output voltage VbusRegulation stall be 0.5V.
4. a kind of charging method for mobile terminal is it is characterised in that comprise the following steps：
Step 1：Reduce charge when output current to one first electric current I1, and export one first output P1；
Step 2：Reduce output voltage V when chargingbus；
Step 3：Rise high charge when output current to one second electric current I2, and export one and described first output P1Equal
The second output P2, wherein said second output P2Charge efficiency μ2More than described first output P1Fill
Electrical efficiency μ1.
5. charging method as claimed in claim 4 it is characterised in that
In described step 1, also include：
The cell voltage V being had according to described mobile terminalbat, calculate input current I=P1*μ1/Vbat.
6. charging method as claimed in claim 5 it is characterised in that
In described step 3, also include：
According to input current I, calculate input power P to the input of described mobile terminalin, described input power Pin=Vbat*I/
μ2.
7. charging method as claimed in claim 4 it is characterised in that
In described step 1, also include：
When the temperature of described mobile terminal reaches its default temperature limit value, start described current regulation unit to realize described the
One electric current I1.
8. charging method as claimed in claim 4 it is characterised in that
In described step 2, output voltage V described in described voltage regulation unit linear regulationbus, described output voltage VbusRegulation
Gear is 0.5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610968536.1A CN106410909B (en) | 2016-10-27 | 2016-10-27 | Charging device and charging method for mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610968536.1A CN106410909B (en) | 2016-10-27 | 2016-10-27 | Charging device and charging method for mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106410909A true CN106410909A (en) | 2017-02-15 |
| CN106410909B CN106410909B (en) | 2020-03-13 |
Family
ID=58014511
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610968536.1A Active CN106410909B (en) | 2016-10-27 | 2016-10-27 | Charging device and charging method for mobile terminal |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023125252A1 (en) * | 2021-12-29 | 2023-07-06 | 中兴通讯股份有限公司 | Charging control methods, electronic device and computer readable storage medium |
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|---|---|---|---|---|
| US20060152953A1 (en) * | 2005-01-10 | 2006-07-13 | Sangbeom Park | Variable start-up circuit for switching regulators |
| CN1873931B (en) * | 2004-12-07 | 2010-08-04 | 旺宏电子股份有限公司 | Method of forming and operating an assisted charge memory device |
| CN103580255A (en) * | 2013-11-19 | 2014-02-12 | 惠州Tcl移动通信有限公司 | Quick charging terminal |
| CN104485713A (en) * | 2014-12-25 | 2015-04-01 | 小米科技有限责任公司 | Charge control method and device |
-
2016
- 2016-10-27 CN CN201610968536.1A patent/CN106410909B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873931B (en) * | 2004-12-07 | 2010-08-04 | 旺宏电子股份有限公司 | Method of forming and operating an assisted charge memory device |
| US20060152953A1 (en) * | 2005-01-10 | 2006-07-13 | Sangbeom Park | Variable start-up circuit for switching regulators |
| CN103580255A (en) * | 2013-11-19 | 2014-02-12 | 惠州Tcl移动通信有限公司 | Quick charging terminal |
| CN104485713A (en) * | 2014-12-25 | 2015-04-01 | 小米科技有限责任公司 | Charge control method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023125252A1 (en) * | 2021-12-29 | 2023-07-06 | 中兴通讯股份有限公司 | Charging control methods, electronic device and computer readable storage medium |
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| CN106410909B (en) | 2020-03-13 |
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