CN104836291B - A kind of control method and control system of mobile terminal charging temperature - Google Patents
A kind of control method and control system of mobile terminal charging temperature Download PDFInfo
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- CN104836291B CN104836291B CN201510228558.XA CN201510228558A CN104836291B CN 104836291 B CN104836291 B CN 104836291B CN 201510228558 A CN201510228558 A CN 201510228558A CN 104836291 B CN104836291 B CN 104836291B
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- 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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a kind of control method and control system of mobile terminal charging temperature, the method includes the steps：When mobile terminal charges, the temperature of battery of mobile terminal is detected in real time；If detecting, the temperature of battery of mobile terminal is higher than the supply current of a reservation threshold, central processing unit control adjustment mobile terminal charging current and battery of mobile terminal.The present invention is opened simultaneously when mobile terminal is in large current charge in application, battery temperature can be controlled effectively, can be effectively protected battery of mobile terminal, be provided users with the convenient.
Description
Technical field
The present invention relates to the control methods and control of technical field of mobile terminals more particularly to a kind of mobile terminal charging temperature
System processed.
Background technology
With the development of mobile communication and people's living standards continue to improve, the use of various mobile terminals such as mobile phone is got over
Come it is more universal, mobile phone have become people life in indispensable Communication tool.
Mobile terminal is played games using the intelligent mobile terminal, is surfed the Internet when charging current is that 1A or more charges, audition
Happy, when seeing the recreations such as video, surface temperature can reach 40 degrees Celsius or more, and internal lithium battery temperature can reach 60
Degree Celsius or more.Intelligent mobile terminal lithium battery cannot charge normal, and the charging current of output is unstable or even cannot export and fills
Electric current causes intelligent mobile terminal that cannot charge.Simultaneously because the charging current of output is unstable, it may appear that instantaneous large-current
Intelligent mobile terminal lithium battery is caused to damage.
Therefore, the existing technology needs to be improved and developed.
Invention content
The technical problem to be solved in the present invention is, for the drawbacks described above of the prior art, provides a kind of mobile terminal and fills
The control method and control system of electro-temperature, it is intended to solve in the prior art mobile terminal charging when in large current charge when,
Battery of mobile terminal temperature is excessively high, the defect that can not be charged normal.
The technical proposal for solving the technical problem of the invention is as follows：
A kind of control method of mobile terminal charging temperature, wherein the method includes the steps：
A, when mobile terminal charges, the temperature of battery of mobile terminal is detected in real time；
If B, detecting, the temperature of battery of mobile terminal is higher than a reservation threshold, central processing unit control adjustment mobile terminal
The supply current of charging current and battery of mobile terminal.
The control method of the mobile terminal charging temperature, wherein the step B specifically includes step：
If B1, detecting that the temperature of battery of mobile terminal is higher than a reservation threshold, first control signal adjustment is called in center
Mobile terminal charging current；
B2, central processing unit call the supply current of second control signal adjustment battery of mobile terminal.
The control method of the mobile terminal charging temperature, wherein the step B1 is specifically included：
If B11, detecting that the temperature of battery of mobile terminal is higher than a reservation threshold, the first enable signal is sent to centre
Manage device；
B12, central processing unit receive first enable signal, call the first control instruction；
B13, the charging current for controlling mobile terminal are gradually reduced.
The control method of the mobile terminal charging temperature, wherein the step B2 is specifically included：
If B21, detecting that the temperature of battery of mobile terminal is higher than a reservation threshold, the second enable signal is sent to centre
Manage device；
B22, central processing unit receive second enable signal, call the second control instruction；
B23, the supply current for controlling mobile terminal are gradually reduced.
The control method of mobile terminal charging temperature described in any one of the above embodiments, wherein the reservation threshold is 60 Celsius
Degree.
A kind of control system of mobile terminal charging temperature, wherein the system comprises：
Temperature detecting module, for when mobile terminal charges, detecting the temperature of battery of mobile terminal in real time；
Judgement and control module, if for detecting that the temperature of battery of mobile terminal is higher than a reservation threshold, central processing
The supply current of device control adjustment mobile terminal charging current and battery of mobile terminal.
The control system of the mobile terminal charging temperature, wherein the judgement is specifically included with control module：
First calling and adjustment unit, if for detecting that the temperature of battery of mobile terminal is higher than a reservation threshold, center
First control signal is called to adjust mobile terminal charging current；
Second calling and adjustment unit call the confession of second control signal adjustment battery of mobile terminal for central processing unit
Electric current.
The control system of the mobile terminal charging temperature, wherein first calling is specifically included with adjustment unit：
First judgement and transmission unit are sent if for detecting that the temperature of battery of mobile terminal is higher than a reservation threshold
First enable signal is to central processing unit；
First call unit receives first enable signal for central processing unit, calls the first control instruction；
First control unit, the charging current for controlling mobile terminal are gradually reduced.
The control system of the mobile terminal charging temperature, wherein the second calling is specifically included with adjustment unit：
Second judgement and transmission unit are sent if for detecting that the temperature of battery of mobile terminal is higher than a reservation threshold
Second enable signal is to central processing unit；
Second call unit receives second enable signal for central processing unit, calls the second control instruction；
Second control unit, the supply current for controlling mobile terminal are gradually reduced.
The control system of mobile terminal charging temperature described in any one of the above embodiments, wherein the reservation threshold is 60 Celsius
Degree.
The present invention provides a kind of control methods and control system of mobile terminal charging temperature, and the method includes steps
Suddenly：When mobile terminal charges, the temperature of battery of mobile terminal is detected in real time；If detecting, the temperature of battery of mobile terminal is higher than
The supply current of one reservation threshold, central processing unit control adjustment mobile terminal charging current and battery of mobile terminal.The present invention
It is opened simultaneously when mobile terminal is in large current charge in application, battery temperature can be controlled effectively, movement can be effectively protected
End cell provides users with the convenient.
Description of the drawings
Fig. 1 is a kind of flow chart of the preferred embodiment of the control method of mobile terminal charging temperature of the present invention.
Fig. 2 is a kind of principle of work and power frame of the preferred embodiment of the control system of mobile terminal charging temperature of the present invention
Figure.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer and more explicit, develop simultaneously embodiment pair referring to the drawings
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
The control method of a kind of mobile terminal charging temperature described in first embodiment of the invention, as shown in Figure 1, including：
Step S100, when mobile terminal charges, the temperature of battery of mobile terminal is detected in real time.
When it is implemented, since existing mobile terminal is often equipped with many recreational applications, user is in mobile terminal
When charging, when opening game application or Video Applications, the supply current of battery of mobile terminal can increase rapidly, when electric current increases
The temperature of battery also will rise rapidly when big.Therefore, mobile terminal will detect the temperature of battery of mobile terminal in real time, prevent
Temperature is excessively high, damages battery.The battery of mobile terminal in the present invention uses lithium battery.
If step S200, detecting, the temperature of battery of mobile terminal is higher than a reservation threshold, central processing unit control adjustment
The supply current of mobile terminal charging current and battery of mobile terminal.
When it is implemented, when the temperature of mobile terminal lithium battery is more than certain temperature threshold values, preferably 60 degrees Celsius
When, battery, which will appear lithium battery, to be charged normal.Therefore, when detect mobile terminal lithium battery temperature be higher than 60 degrees Celsius
When, for central processing unit by calling the certain control instruction of book, control respectively adjusts mobile terminal charging current and lithium battery power supply
Electric current.Specifically, respectively reducing the supply current of mobile terminal charging current and lithium battery, when the current decreases, mobile terminal
The heat that inside generates also reduces therewith, realizes reduction temperature.
When it is implemented, the step S200 is specifically included：
If step S210, detecting, the temperature of battery of mobile terminal is higher than a reservation threshold, and the first control letter is called in center
Number adjustment mobile terminal charging current.
When it is implemented, the step S210 is specifically included：
If step S211, detecting, the temperature of battery of mobile terminal is higher than a reservation threshold, sends the first enable signal extremely
Central processing unit；Specifically, the first enable signal is high level enable signal, can be denoted as 1 enable signal EN1 of high level.
Step S212, central processing unit receives first enable signal, calls the first control instruction；Specifically, high electricity
Corresponding first control instructions of flat 1 enable signal EN1, can be denoted as instruction 1.
Step S213, the charging current of control mobile terminal is gradually reduced.Specifically, central processing unit passes through in the present invention
The relevant parameter of adjustment NMOS tube realizes that control charging current is gradually reduced.
Specific implementation, when detecting that the temperature of mobile terminal lithium battery is more than 60 degrees Celsius, mobile terminal sends high electricity
1 enable signal EN1 is put down to central processing unit, it is desirable that central processing unit controls the NMOS tube unit inside mobile terminal.
After central processing unit receives the 1 enable signal EN1 of high level of transmission, the height is retrieved from its internal memory unit
The instruction 1 of 1 enable signal EN1 of level, and the instruction 1 for extracting 1 enable signal EN1 of the high level is kept in inside central processing unit
Command register unit, call 1 signal of instruction, the NMOS tube inside 1 driving control signal to mobile terminal of output order
The gate terminal of unit, 1 driving control signal of instruction are the high level signal that rising edge and failing edge voltage are gradually reduced, then move
The driving capability that the NMOS tube unit grid of dynamic terminal inner is extreme continuously decreases.
The charging current that charger is input to intelligent mobile terminal is denoted as IUSB, when IUSB passes through the NMOS inside movement eventually
When pipe unit exports, it is special that the NMOS tube cell gate driving capability inside mobile terminal reaches the NMOS tube cell voltage parameter
Property require maximum value when, then charger be input to intelligent mobile terminal charging current IUSB can be by mobile terminal inside
NMOS tube unit source electrode to drain electrode export.
The grid of NMOS tube unit inside 1 driving control signal to mobile terminal of instruction of central processing unit output
End, since the rising edge and failing edge voltage of 1 driving control signal of instruction are gradually reduced, then the NMOS tube inside mobile terminal
The extreme driving capability of unit grid continuously decreases, then charger is input to the charging current IUSB of intelligent mobile terminal and passes through movement
The source electrode of the NMOS tube unit of terminal inner is gradually reduced to drain electrode output, and control charger is input to filling for intelligent mobile terminal
Electric current IUSB charges to lithium battery, reduces the temperature of lithium battery.
Step S220, central processing unit calls the supply current of second control signal adjustment battery of mobile terminal.
When it is implemented, the step S220 is specifically included：
If step S221, detecting, the temperature of battery of mobile terminal is higher than a reservation threshold, sends the second enable signal extremely
Central processing unit；Specifically, the second enable signal is high level enable signal, can be denoted as 2 enable signal EN2 of high level.
Step S222, central processing unit receives second enable signal, calls the second control instruction；Specifically, high electricity
Corresponding second control instructions of flat 2 enable signal EN2, can be denoted as instruction 2.
Step S223, the supply current of control mobile terminal is gradually reduced.Specifically, central processing unit passes through in the present invention
The relevant parameter of adjustment PMOS tube realizes that control lithium battery discharge current is gradually reduced.
When the temperature for detecting intelligent mobile terminal lithium battery is more than 60 degrees Celsius, it is enabled that mobile terminal sends high level 2
Signal EN2 is to central processing unit, it is desirable that central processing unit controls the PMOS tube unit inside intelligent mobile terminal.
After central processing unit receives the 2 enable signal EN2 of high level of mobile terminal transmission, from its internal memory unit
The instruction 2 of 2 enable signal EN2 of the high level is retrieved, and centre is kept in the instruction 2 for extracting 2 enable signal EN2 of the high level
The command register unit inside device is managed, calls 2 signal of instruction, inside 2 driving control signal to mobile terminal of output order
PMOS tube unit gate terminal, which is rising edge and failing edge voltage gradually increased low level
Signal, then the extreme driving capability of the PMOS tube unit grid inside mobile terminal continuously decrease.
The supply current that mobile terminal detection lithium battery is powered to intelligent mobile terminal is denoted as IBAT, and IBAT passes through mobile whole
PMOS tube unit output inside end, the PMOS tube cell gate driving capability inside mobile terminal reach the PMOS tube unit
When the minimum value of voltage parameter characteristic requirements, then mobile terminal detects the supply current that lithium battery is powered to intelligent mobile terminal
IBAT can be exported by the drain-to-source of the PMOS tube unit inside mobile terminal.
The grid of PMOS tube unit inside 2 driving control signal to mobile terminal of instruction of central processing unit output
End, since the rising edge and failing edge voltage of 2 driving control signal of instruction gradually increase, then the PMOS tube inside mobile terminal
The extreme driving capability of unit grid continuously decreases, then the power supply that intelligent mobile terminal detection lithium battery is powered to intelligent mobile terminal
Electric current IBAT is gradually reduced by the drain-to-source output of the PMOS tube unit inside mobile terminal, controls intelligent mobile terminal
The supply current IBAT that detection lithium battery is powered to intelligent mobile terminal, reduces the temperature of lithium battery.
In the present invention, the reservation threshold is 60 degrees Celsius, because when lithium battery temperature is more than 60 degrees Celsius, lithium battery
Cisco unity malfunction, output current are also unstable.Specifically, user can also oneself setting as needed.For example, it is preferable to can
To select 40 degrees Celsius or 50 degrees Celsius.
By above-described embodiment it is found that the present invention provides a kind of control methods of mobile terminal charging temperature, by real-time
Battery temperature when detection charging, it is mobile eventually by the central processing unit control of mobile terminal when judging that battery temperature is excessively high
End charging current is gradually reduced and the supply current of battery of mobile terminal is gradually reduced, and to reduce battery temperature, prevents battery
Because temperature is too high to work or the case where burning out battery generates, provide users with the convenient.
Based on above-described embodiment, the present invention also provides a kind of control systems of mobile terminal charging temperature, as shown in Fig. 2,
System includes：
Temperature detecting module 510, for when mobile terminal charges, detecting the temperature of battery of mobile terminal in real time；Specifically
As described above.
Judgement and control module 520, if for detecting that the temperature of battery of mobile terminal is higher than a reservation threshold, centre
Manage the supply current of device control adjustment mobile terminal charging current and battery of mobile terminal；As detailed above.
The control system of the mobile terminal charging temperature, wherein the judgement is specifically included with control module：
First calling and adjustment unit, if for detecting that the temperature of battery of mobile terminal is higher than a reservation threshold, center
First control signal is called to adjust mobile terminal charging current；As detailed above.
Second calling and adjustment unit call the confession of second control signal adjustment battery of mobile terminal for central processing unit
Electric current；As detailed above.
The control system of the mobile terminal charging temperature, wherein first calling is specifically included with adjustment unit：
First judgement and transmission unit are sent if for detecting that the temperature of battery of mobile terminal is higher than a reservation threshold
First enable signal is to central processing unit；As detailed above.
First call unit receives first enable signal for central processing unit, calls the first control instruction；Specifically
As described above.
First control unit, the charging current for controlling mobile terminal are gradually reduced；As detailed above.
The control system of the mobile terminal charging temperature, wherein the second calling is specifically included with adjustment unit：
Second judgement and transmission unit are sent if for detecting that the temperature of battery of mobile terminal is higher than a reservation threshold
Second enable signal is to central processing unit；As detailed above.
Second call unit receives second enable signal for central processing unit, calls the second control instruction；Specifically
As described above.
Second control unit, the supply current for controlling mobile terminal are gradually reduced；As detailed above.
The control system of mobile terminal charging temperature described in any one of the above embodiments, wherein the reservation threshold is 60 Celsius
Degree；As detailed above.
In conclusion the present invention provides a kind of control method and control system of mobile terminal charging temperature, the side
Method includes step：When mobile terminal charges, the temperature of battery of mobile terminal is detected in real time；If detecting battery of mobile terminal
Temperature is higher than the power supply electricity of a reservation threshold, central processing unit control adjustment mobile terminal charging current and battery of mobile terminal
Stream.The present invention is opened simultaneously when mobile terminal is in large current charge in application, battery temperature can be controlled effectively, can be effective
Battery of mobile terminal is protected, is provided users with the convenient.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect range.
Claims (2)
1. a kind of control method of mobile terminal charging temperature, which is characterized in that the method includes the steps：
A, when mobile terminal charges, the temperature of battery of mobile terminal is detected in real time；
If B, detecting, the temperature of battery of mobile terminal is higher than a reservation threshold, central processing unit control adjustment mobile terminal charging
The supply current of electric current and battery of mobile terminal；
The step B specifically includes step：
If B1, detecting that the temperature of battery of mobile terminal is higher than a reservation threshold, first control signal adjustment movement is called in center
Terminal charge electric current；
B2, central processing unit call the supply current of second control signal adjustment battery of mobile terminal；
The step B1 is specifically included：
If B11, detecting that the temperature of battery of mobile terminal is higher than a reservation threshold, the first enable signal is sent to central processing
Device；
B12, central processing unit receive first enable signal, call the first control instruction；
B13, the charging current for controlling mobile terminal are gradually reduced；
The step B2 is specifically included：
If B21, detecting that the temperature of battery of mobile terminal is higher than a reservation threshold, the second enable signal is sent to central processing
Device；
B22, central processing unit receive second enable signal, call the second control instruction；
B23, the supply current for controlling mobile terminal are gradually reduced；
Central processing unit realizes that control mobile terminal charging current is gradually reduced by adjusting the relevant parameter of NMOS tube；
Central processing unit realizes that control mobile terminal supply current is gradually reduced by adjusting the relevant parameter of PMOS tube；
The reservation threshold is 60 degrees Celsius；
When detecting that the temperature of mobile terminal lithium battery is more than 60 degrees Celsius, mobile terminal sends 1 enable signal EN1 of high level
To central processing unit, it is desirable that central processing unit controls the NMOS tube unit inside mobile terminal；
After central processing unit receives the 1 enable signal EN1 of high level of transmission, height electricity is retrieved from its internal memory unit
The instruction 1 of flat 1 enable signal EN1, and the instruction 1 for extracting 1 enable signal EN1 of the high level is kept in inside central processing unit
Command register unit calls 1 signal of instruction, the NMOS tube list inside 1 driving control signal to mobile terminal of output order
The gate terminal of member, 1 driving control signal of instruction are the high level signal that rising edge and failing edge voltage are gradually reduced, then move
The driving capability that the NMOS tube unit grid of terminal inner is extreme continuously decreases；
The charging current that charger is input to intelligent mobile terminal is denoted as IUSB, when IUSB passes through the NMOS tube list inside movement eventually
When member output, the NMOS tube cell gate driving capability inside mobile terminal reaches the NMOS pipe unit voltage parameter characteristics
It is required that maximum value when, then charger be input to intelligent mobile terminal charging current IUSB can be by mobile terminal inside
NMOS tube unit source electrode to drain electrode export；
The gate terminal of NMOS tube unit inside 1 driving control signal to mobile terminal of instruction of central processing unit output, by
It is gradually reduced in the rising edge and failing edge voltage of 1 driving control signal of instruction, then the NMOS tube unit inside mobile terminal
The driving capability of gate terminal continuously decreases, then charger is input to the charging current IUSB of intelligent mobile terminal and passes through mobile terminal
The source electrode of internal NMOS tube unit is gradually reduced to drain electrode output, and control charger is input to the charging electricity of intelligent mobile terminal
It flows IUSB to charge to lithium battery, reduces the temperature of lithium battery；
When the temperature for detecting intelligent mobile terminal lithium battery is more than 60 degrees Celsius, mobile terminal sends 2 enable signal of high level
EN2 is to central processing unit, it is desirable that central processing unit controls the PMOS tube unit inside intelligent mobile terminal；
After central processing unit receives the 2 enable signal EN2 of high level of mobile terminal transmission, retrieved from its internal memory unit
The instruction 2 of 2 enable signal EN2 of the high level, and central processing unit is kept in the instruction 2 for extracting 2 enable signal EN2 of the high level
Internal command register unit, calls 2 signal of instruction, inside 2 driving control signal to mobile terminal of output order
The gate terminal of PMOS tube unit, 2 driving control signal of instruction are rising edge and failing edge voltage gradually increased low level letter
Number, then the extreme driving capability of the PMOS tube unit grid inside mobile terminal continuously decreases；
The supply current that mobile terminal detection lithium battery is powered to intelligent mobile terminal is denoted as IBAT, and IBAT passes through in mobile terminal
The PMOS tube unit in portion exports, and the PMOS tube cell gate driving capability inside mobile terminal reaches the PMOS tube cell voltage
When the minimum value that parameter characteristic requires, then mobile terminal detects the supply current IBAT energy that lithium battery is powered to intelligent mobile terminal
Enough exported by the drain-to-source of the PMOS tube unit inside mobile terminal；
The gate terminal of PMOS tube unit inside 2 driving control signal to mobile terminal of instruction of central processing unit output, by
Gradually increase in the rising edge and failing edge voltage of 2 driving control signal of instruction, then the PMOS tube unit inside mobile terminal
The driving capability of gate terminal continuously decreases, then the supply current that intelligent mobile terminal detection lithium battery is powered to intelligent mobile terminal
IBAT is gradually reduced by the drain-to-source output of the PMOS tube unit inside mobile terminal, control intelligent mobile terminal detection
The supply current IBAT that lithium battery is powered to intelligent mobile terminal, reduces the temperature of lithium battery；
The control method of the mobile terminal charging temperature is opened simultaneously when mobile terminal is in large current charge in application, controlling
Battery temperature protects battery of mobile terminal.
2. a kind of control system of mobile terminal charging temperature, which is characterized in that the system comprises：
Temperature detecting module, for when mobile terminal charges, detecting the temperature of battery of mobile terminal in real time；
Judgement and control module, if for detecting that the temperature of battery of mobile terminal is higher than a reservation threshold, central processing unit control
The supply current of system adjustment mobile terminal charging current and battery of mobile terminal；
The judgement is specifically included with control module：
First calling and adjustment unit, if for detecting that the temperature of battery of mobile terminal is higher than a reservation threshold, center is called
First control signal adjusts mobile terminal charging current；
Second calling and adjustment unit call the power supply electricity of second control signal adjustment battery of mobile terminal for central processing unit
Stream；
First calling is specifically included with adjustment unit：
First judgement and transmission unit send first if for detecting that the temperature of battery of mobile terminal is higher than a reservation threshold
Enable signal is to central processing unit；
First call unit receives first enable signal for central processing unit, calls the first control instruction；
First control unit, the charging current for controlling mobile terminal are gradually reduced；
Second calling is specifically included with adjustment unit：
Second judgement and transmission unit send second if for detecting that the temperature of battery of mobile terminal is higher than a reservation threshold
Enable signal is to central processing unit；
Second call unit receives second enable signal for central processing unit, calls the second control instruction；
Second control unit, the supply current for controlling mobile terminal are gradually reduced；
Central processing unit realizes that control mobile terminal charging current is gradually reduced by adjusting the relevant parameter of NMOS tube；
Central processing unit realizes that control mobile terminal supply current is gradually reduced by adjusting the relevant parameter of PMOS tube；
The reservation threshold is 60 degrees Celsius；
When detecting that the temperature of mobile terminal lithium battery is more than 60 degrees Celsius, mobile terminal sends 1 enable signal EN1 of high level
To central processing unit, it is desirable that central processing unit controls the NMOS tube unit inside mobile terminal；
After central processing unit receives the 1 enable signal EN1 of high level of transmission, height electricity is retrieved from its internal memory unit
The instruction 1 of flat 1 enable signal EN1, and the instruction 1 for extracting 1 enable signal EN1 of the high level is kept in inside central processing unit
Command register unit calls 1 signal of instruction, the NMOS tube list inside 1 driving control signal to mobile terminal of output order
The gate terminal of member, 1 driving control signal of instruction are the high level signal that rising edge and failing edge voltage are gradually reduced, then move
The driving capability that the NMOS tube unit grid of terminal inner is extreme continuously decreases；
The charging current that charger is input to intelligent mobile terminal is denoted as IUSB, when IUSB passes through the NMOS tube list inside movement eventually
When member output, the NMOS tube cell gate driving capability inside mobile terminal reaches the NMOS pipe unit voltage parameter characteristics
It is required that maximum value when, then charger be input to intelligent mobile terminal charging current IUSB can be by mobile terminal inside
NMOS tube unit source electrode to drain electrode export；
The gate terminal of NMOS tube unit inside 1 driving control signal to mobile terminal of instruction of central processing unit output, by
It is gradually reduced in the rising edge and failing edge voltage of 1 driving control signal of instruction, then the NMOS tube unit inside mobile terminal
The driving capability of gate terminal continuously decreases, then charger is input to the charging current IUSB of intelligent mobile terminal and passes through mobile terminal
The source electrode of internal NMOS tube unit is gradually reduced to drain electrode output, and control charger is input to the charging electricity of intelligent mobile terminal
It flows IUSB to charge to lithium battery, reduces the temperature of lithium battery；
When the temperature for detecting intelligent mobile terminal lithium battery is more than 60 degrees Celsius, mobile terminal sends 2 enable signal of high level
EN2 is to central processing unit, it is desirable that central processing unit controls the PMOS tube unit inside intelligent mobile terminal；
After central processing unit receives the 2 enable signal EN2 of high level of mobile terminal transmission, retrieved from its internal memory unit
The instruction 2 of 2 enable signal EN2 of the high level, and central processing unit is kept in the instruction 2 for extracting 2 enable signal EN2 of the high level
Internal command register unit, calls 2 signal of instruction, inside 2 driving control signal to mobile terminal of output order
The gate terminal of PMOS tube unit, 2 driving control signal of instruction are rising edge and failing edge voltage gradually increased low level letter
Number, then the extreme driving capability of the PMOS tube unit grid inside mobile terminal continuously decreases；
The supply current that mobile terminal detection lithium battery is powered to intelligent mobile terminal is denoted as IBAT, and IBAT passes through in mobile terminal
The PMOS tube unit in portion exports, and the PMOS tube cell gate driving capability inside mobile terminal reaches the PMOS tube cell voltage
When the minimum value that parameter characteristic requires, then mobile terminal detects the supply current IBAT energy that lithium battery is powered to intelligent mobile terminal
Enough exported by the drain-to-source of the PMOS tube unit inside mobile terminal；
The gate terminal of PMOS tube unit inside 2 driving control signal to mobile terminal of instruction of central processing unit output, by
Gradually increase in the rising edge and failing edge voltage of 2 driving control signal of instruction, then the PMOS tube unit inside mobile terminal
The driving capability of gate terminal continuously decreases, then the supply current that intelligent mobile terminal detection lithium battery is powered to intelligent mobile terminal
IBAT is gradually reduced by the drain-to-source output of the PMOS tube unit inside mobile terminal, control intelligent mobile terminal detection
The supply current IBAT that lithium battery is powered to intelligent mobile terminal, reduces the temperature of lithium battery；
The control system of the mobile terminal charging temperature is opened simultaneously when mobile terminal is in large current charge in application, controlling
Battery temperature protects battery of mobile terminal.
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| CN106230038A (en) * | 2016-07-26 | 2016-12-14 | 努比亚技术有限公司 | A kind of charging method and terminal |
| CN106654424A (en) * | 2016-11-30 | 2017-05-10 | 努比亚技术有限公司 | Charging method and terminal |
| CN106708126A (en) * | 2017-01-13 | 2017-05-24 | 广东欧珀移动通信有限公司 | Charging temperature adjusting device and mobile terminal |
| CN107195998A (en) * | 2017-06-20 | 2017-09-22 | 上海闻泰电子科技有限公司 | Charging device and method |
| CN112713325A (en) * | 2021-01-28 | 2021-04-27 | 格力博(江苏)股份有限公司 | Charging method and charging equipment |
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| EP1816722A2 (en) * | 2005-11-17 | 2007-08-08 | Matsushita Electric Works, Ltd. | Charging method, charging circuit, and charging device |
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Effective date of registration: 20211105 Address after: 257092 Room 308, building 3, Dongying Software Park, No. 228, Nanyi Road, development zone, Dongying City, Shandong Province Patentee after: Dongkai Shuke (Shandong) Industrial Park Co.,Ltd. Address before: 516006 Zhongkai hi tech Zone, Huizhou, Guangdong, 86 Chang seven Road West Patentee before: HUIZHOU TCL MOBILE COMMUNICATION Co.,Ltd. |