CN104795791B - A kind of mobile terminal charge protection method and system - Google Patents
A kind of mobile terminal charge protection method and system Download PDFInfo
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- CN104795791B CN104795791B CN201510199432.4A CN201510199432A CN104795791B CN 104795791 B CN104795791 B CN 104795791B CN 201510199432 A CN201510199432 A CN 201510199432A CN 104795791 B CN104795791 B CN 104795791B
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Abstract
It includes step that the present invention, which discloses a kind of mobile terminal charge protection method and system, method,：When mobile terminal is charged, detects the temperature of power management module in mobile terminal in real time by temperature detecting module and detect lithium battery anode input terminal electric current IBAT1 and lithium battery anode output end current IBAT2 in real time by current detection module；When it is more than that the first temperature threshold and lithium battery anode output end current IBAT2 are more than current threshold to detect the temperature of power management module, the then corresponding control signal of output, PMOS tube control unit conducting in driving current detection module, or the conducting of NMOS tube control unit, realize the reduction of lithium battery anode input terminal electric current IBAT1 or lithium battery anode output end current IBAT2.For the present invention when mobile terminal charges, such as carrying out other operations causes temperature elevated currents to increase, then the corresponding control signal of output, to realize the reduction of electric current.
Description
Technical field
The present invention relates to field of mobile terminals more particularly to a kind of mobile terminal charge protection method and systems.
Background technology
Intelligent mobile terminal is in charging process, it is often necessary to the functions such as played games, surfed the Internet using it, made a phone call, these
The realization of operation needs high current to support, and the operating time is long, then the intelligent mobile terminal temperature can be caused to increase, damage
Hinder intelligent mobile terminal power management module, and the charging of intelligent mobile terminal lithium battery can be influenced, reduces making for lithium battery
Use the service life.
Therefore, the existing technology needs to be improved and developed.
Invention content
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of mobile terminal charge protection method and
System, it is intended to solve the problems, such as that existing mobile terminal carries out other operations in charging process and temperature is caused to increase.
Technical scheme is as follows：
A kind of mobile terminal charge protection method, wherein including step：
A, when mobile terminal is charged, power management module in mobile terminal is detected in real time by temperature detecting module
Temperature and detect lithium battery anode input terminal electric current IBAT1 and lithium battery anode output end in real time by current detection module
Electric current IBAT2；
B, when detecting that the temperature of power management module is more than the first temperature threshold and lithium battery anode output end current
When IBAT2 is more than current threshold, then output is corresponding controls signal, and the PMOS tube control unit in driving current detection module is led
The conducting of logical or NMOS tube control unit, realizes lithium battery anode input terminal electric current IBAT1 or lithium battery anode output end current
The reduction of IBAT2.
The mobile terminal charge protection method, wherein the step B further includes：
When detecting that the temperature of power management module is less than second temperature threshold value and lithium battery anode output end current
When IBAT2 is less than current threshold, then first control signal is exported, the first NPN triode control in driving current detection module
Unit conducting processed, realizes that lithium battery anode input terminal electric current IBAT1 is exported by the first NPN triode control unit.
The mobile terminal charge protection method, wherein the step B further includes：
When detecting that the temperature of power management module is less than second temperature threshold value and lithium battery anode output end current
When IBAT2 is less than current threshold, then second control signal is exported, the second NPN triode control in driving current detection module
Unit conducting processed, realizes that lithium battery anode output end current IBAT2 is exported by the second NPN triode control unit.
The mobile terminal charge protection method, wherein the step B is specifically included：
Current detection module sends a request signal to the central processing unit of mobile terminal, and central processing unit is from its storage inside
Device unit retrieves the corresponding command signal of the request signal, extracts the command signal and keeps in the built-in command of central processing unit and posts
Storage unit, central processing unit call the command signal to export corresponding control signal.
The mobile terminal charge protection method, wherein further include after the step B：
In the LCD display module display reminding term of mobile terminal, the work(for reminding user's pausing operation mobile terminal
Energy.
A kind of mobile terminal charge protection system, wherein including：
Temperature detecting module, for when mobile terminal is charged, detecting power management module in mobile terminal in real time
Temperature,
Current detection module, for when mobile terminal is charged, detecting lithium battery anode input terminal electric current in real time
IBAT1 and lithium battery anode output end current IBAT2；
Protection module detects that the temperature of power management module is more than the first temperature threshold and lithium battery anode for working as
When output end current IBAT2 is more than current threshold, then output is corresponding controls signal, the PMOS tube in driving current detection module
Control unit is connected or the conducting of NMOS tube control unit, realizes lithium battery anode input terminal electric current IBAT1 or lithium battery anode
The reduction of output end current IBAT2.
The mobile terminal charge protection system, wherein the protection module further includes：
First output unit detects that the temperature of power management module is less than second temperature threshold value and lithium electricity for working as
When pond cathode output end electric current IBAT2 is less than current threshold, then first control signal is exported, in driving current detection module
First NPN triode control unit is connected, and realizes that lithium battery anode input terminal electric current IBAT1 is controlled by the first NPN triode
Unit exports.
The mobile terminal charge protection system, wherein the protection module further includes：
Second output unit detects that the temperature of power management module is less than second temperature threshold value and lithium electricity for working as
When pond cathode output end electric current IBAT2 is less than current threshold, then second control signal is exported, in driving current detection module
Second NPN triode control unit is connected, and realizes that lithium battery anode output end current IBAT2 is controlled by the second NPN triode
Unit exports.
The mobile terminal charge protection system, wherein the protection module：
Signal output unit, the central processing unit for sending a request signal to mobile terminal, central processing unit is out of it
Portion's memory cell retrieves the corresponding command signal of the request signal, extracts the inside that the command signal keeps in central processing unit
Command register unit, central processing unit call the command signal to export corresponding control signal.
The mobile terminal charge protection system, wherein further include：
LCD display module, for prompting term, the function for reminding user's pausing operation mobile terminal.
Advantageous effect：For the present invention when mobile terminal charges, such as carrying out other operations leads to temperature elevated currents liter
Height, then the corresponding control signal of output, carrys out the conducting of PMOS tube control unit or the NMOS tube control in driving current detection module
Unit conducting processed, realizes the reduction of electric current.And the mode of operation of user's mobile terminal can be reminded, further protection is mobile eventually
End.
Description of the drawings
Fig. 1 is a kind of flow chart of the preferably real-time example of mobile terminal charge protection method of the present invention.
Fig. 2 is a kind of structure diagram of the preferably real-time example of mobile terminal charge protection system of the present invention.
Specific implementation mode
The present invention provides a kind of mobile terminal charge protection method and system, for make the purpose of the present invention, technical solution and
Effect is clearer, clear, and the present invention is described in more detail below.It should be appreciated that specific embodiment described herein
It is only used to explain the present invention, be not intended to limit the present invention.
Referring to Fig. 1, Fig. 1 is a kind of flow chart of mobile terminal charge protection method preferred embodiment of the present invention, such as scheme
It is shown comprising step：
S101, when mobile terminal is charged, detect power management in mobile terminal in real time by temperature detecting module
The temperature of module and detect lithium battery anode input terminal electric current IBAT1 in real time by current detection module and lithium battery anode is defeated
Outlet electric current IBAT2；
S102, when detecting that the temperature of power management module is more than the first temperature threshold and lithium battery anode output end electricity
When flowing IBAT2 more than current threshold, then output is corresponding controls signal, the PMOS tube control unit in driving current detection module
Lithium battery anode input terminal electric current IBAT1 or lithium battery anode output end electricity are realized in conducting or the conducting of NMOS tube control unit
Flow the reduction of IBAT2.
In conjunction with shown in Fig. 2, when mobile terminal lithium battery is charging without carrying out other operations（Such as it plays, online, beat
Phone etc.）When, then lithium battery anode input terminal electric current IBAT1 is more than lithium battery anode output end current IBAT2, and temperature is examined at this time
It surveys module 100 and detects that the temperature of power management module 200 is less than second temperature threshold value（Such as 60 DEG C）, current detection module
300 detect that IBAT2 is less than current threshold（1A）, then current detection module 300 sends the first request signal of high level
To central processing unit 400.
Central processing unit 400 receives the first request signal of the high level, and the height is retrieved from its internal memory unit
Corresponding first command signal of the first request signal of level, extracts first command signal and keeps in central processing unit 400
Internal instruction register unit, central processing unit 400 calls first command signal, and exports first control signal（It is corresponding
First request signal of high level）, it is single that first control signal is input to the control of the NPN triode inside current detection module 300
The base stage of member, the NPN triode control unit inside driving current detection module 300 are connected.Work as mobile terminal lithium to realize
Battery when charging is operated without other, the electric current IBAT1 of lithium battery anode input terminal by current detection module 300 inside
NPN triode control unit output.NPN triode control unit control IBAT1 is output to the power supply pipe of intelligent mobile terminal
Manage the charging control unit of module 200.
When mobile terminal lithium battery in charging and is carrying out other operations（Such as it plays, surf the Internet, make a phone call）When, and lithium
Anode input terminal electric current IBAT1 is more than lithium battery anode output end current IBAT2, and temperature detecting module 100 detects at this time
The temperature of power management module 200 is less than second temperature threshold value（Such as 60 DEG C）, current detection module 300 detects IBAT2 not
More than current threshold（1A）, then current detection module 300 sends low level second request signal to central processing unit 400.
Central processing unit 400 receives low level second request signal, and it is low to retrieve this from its internal memory unit
Corresponding second command signal of the second request signal of level, extracts second command signal and keeps in central processing unit 400
Internal instruction register unit, central processing unit 400 call second command signal, export second control signal（Correspondence is low
Second request signal of level）, second control signal is input to the PNP triode control unit inside current detection module 300
Base stage, the PNP triode control unit conducting inside driving current detection module 300.To realize when mobile terminal lithium electricity
In charging, the electric current IBAT2 of lithium battery anode output end is controlled by the PNP triode inside current detection module 300 in pond
Unit exports.
When mobile terminal is in carrying out charging process, the temperature that temperature detecting module 100 detects power management module 200 is super
Cross the first temperature threshold（Such as 80 DEG C）, current detection module 300 detect IBAT2 be more than current threshold（1A）, lithium battery at this time
The electric current needs of electrode input end electric current IBAT1 continuously decrease, to reduce the temperature of intelligent mobile terminal power management module 200
Degree.
The IBAT1 electric currents are less than the electric current of lithium battery anode output end current IBAT2 at this time, then current detection module
300 send low level third request signal to central processing unit 400.
Central processing unit 400 receives the low level third request signal, and it is low to retrieve this from its internal memory unit
The corresponding third command signal of third request signal of level, extracts the third command signal and keeps in central processing unit 400
Internal instruction register unit calls the third command signal, central processing unit 400 to export third and control signal（Corresponding low electricity
Flat third request signal）, third control signal is input to the grid of the PMOS tube control unit inside current detection module 300
Pole, the PMOS tube control unit inside driving current detection module 300, the conducting of PMOS tube control unit.Then in the process, lithium
The electric current IBAT1 of anode input terminal is gradually reduced output by the PMOS tube control unit inside current detection module 300,
PMOS tube is set to progressively reach cut-off state control IBAT1 outputs.
When mobile terminal is in carrying out charging process, the temperature that temperature detecting module 100 detects power management module 200 is super
Cross the first temperature threshold（Such as 80 DEG C）, current detection module 300 detect IBAT2 be more than current threshold（1A）, lithium battery at this time
The electric current needs of cathode output end electric current IBAT2 continuously decrease, to reduce the temperature of intelligent mobile terminal power management module 200
Degree.
Current detection module 300 sends the 4th request signal of high level to central processing unit 400 at this time.
Central processing unit 400 receives the 4th request signal of the high level, and the height is retrieved from its internal memory unit
Corresponding 4th command signal of the 4th request signal of level, extracts the 4th command signal and keeps in central processing unit 400
Internal instruction register unit calls the 4th command signal, the 4th control signal of the output of central processing unit 400（Corresponding high electricity
The 4th flat request signal）, the 4th controls the grid that signal is input to the NMOS tube control unit inside current detection module 300
Pole, the NMOS tube control unit conducting inside driving current detection module 300.Then when mobile terminal lithium battery is in charging, lithium
The electric current IBAT2 of anode output end is gradually reduced output by the NMOS tube control unit inside current detection module 300,
Reduce the temperature of mobile terminal power management module 200.
In the present invention, above-mentioned third request signal and the 4th request signal can be sent simultaneously, be moved with reaching quickly to reduce
The purpose of dynamic 200 temperature of terminal supplying power management module, then when detecting that the temperature of power management module 200 is less than the second temperature
Degree threshold value and IBAT2 are less than current threshold（1A）, then the first request signal or the second request signal can be sent again,
Output current.
Further, further include after the step S102：
In the LCD display module display reminding term of mobile terminal, the work(for reminding user's pausing operation mobile terminal
Energy.Such as can be exported by central processing unit and display signal to LCD display module, it notifies its display reminding term, prompts " temperature at present
Spend height, ask the function of pausing operation mobile terminal " as message to user, remind user.
In the present invention, whether temperature detecting module detects the temperature of power management module in mobile terminal more than first in real time
Temperature threshold or second temperature threshold value can detect according to certain frequency, such as be detected every 5 seconds frequencies,
Based on the above method, the present invention also provides a kind of mobile terminal charge protection system preferred embodiments comprising：
Temperature detecting module, for when mobile terminal is charged, detecting power management module in mobile terminal in real time
Temperature,
Current detection module, for when mobile terminal is charged, detecting lithium battery anode input terminal electric current in real time
IBAT1 and lithium battery anode output end current IBAT2；
Protection module detects that the temperature of power management module is more than the first temperature threshold and lithium battery anode for working as
When output end current IBAT2 is more than current threshold, then output is corresponding controls signal, the PMOS tube in driving current detection module
Control unit is connected or the conducting of NMOS tube control unit, realizes lithium battery anode input terminal electric current IBAT1 or lithium battery anode
The reduction of output end current IBAT2.
Further, the protection module further includes：
First output unit detects that the temperature of power management module is less than second temperature threshold value and lithium electricity for working as
When pond cathode output end electric current IBAT2 is less than current threshold, then first control signal is exported, in driving current detection module
First NPN triode control unit is connected, and realizes that lithium battery anode input terminal electric current IBAT1 is controlled by the first NPN triode
Unit exports.
Further, the protection module further includes：
Second output unit detects that the temperature of power management module is less than second temperature threshold value and lithium electricity for working as
When pond cathode output end electric current IBAT2 is less than current threshold, then second control signal is exported, in driving current detection module
Second NPN triode control unit is connected, and realizes that lithium battery anode output end current IBAT2 is controlled by the second NPN triode
Unit exports.
Further, the protection module：
Signal output unit, the central processing unit for sending a request signal to mobile terminal, central processing unit is out of it
Portion's memory cell retrieves the corresponding command signal of the request signal, extracts the inside that the command signal keeps in central processing unit
Command register unit, central processing unit call the command signal to export corresponding control signal.
Further, system further includes：
LCD display module, for prompting term, the function for reminding user's pausing operation mobile terminal.
It has been described in detail in the method for technical detail in front about above-mentioned modular unit, so it will not be repeated.
In conclusion the present invention, which when mobile terminal charges, such as carries out other operations, leads to temperature elevated currents liter
Height, then the corresponding control signal of output, carrys out the conducting of PMOS tube control unit or the NMOS tube control in driving current detection module
Unit conducting processed, realizes the reduction of electric current.And the mode of operation of user's mobile terminal can be reminded, further protection is mobile eventually
End.
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 (6)
1. a kind of mobile terminal charge protection method, which is characterized in that including step：
A, when mobile terminal is charged, the temperature of power management module in mobile terminal is detected in real time by temperature detecting module
Spend and detected in real time by current detection module lithium battery anode input terminal electric current IBAT1 and lithium battery anode output end current
IBAT2；
B, when detecting that the temperature of power management module is more than the first temperature threshold and lithium battery anode output end current IBAT2
When more than current threshold, then output is corresponding controls signal, the PMOS tube control unit conducting in driving current detection module, or
Person's NMOS tube control unit is connected, and realizes lithium battery anode input terminal electric current IBAT1 or lithium battery anode output end current IBAT2
Reduction；
When detecting that the temperature of power management module is less than second temperature threshold value and lithium battery anode output end current IBAT2
When being less than current threshold, then first control signal is exported, the first NPN triode control unit in driving current detection module
Conducting realizes that lithium battery anode input terminal electric current IBAT1 is exported by the first NPN triode control unit；
When detecting that the temperature of power management module is less than second temperature threshold value and lithium battery anode output end current IBAT2
When being less than current threshold, then second control signal is exported, the second NPN triode control unit in driving current detection module
Conducting realizes that lithium battery anode output end current IBAT2 is exported by the second NPN triode control unit.
2. mobile terminal charge protection method according to claim 1, which is characterized in that the step B is specifically included：
Current detection module sends a request signal to the central processing unit of mobile terminal, and central processing unit is from its internal storage list
Member retrieves the corresponding command signal of the request signal, extracts the internal instruction register that the command signal keeps in central processing unit
Unit, central processing unit call the command signal to export corresponding control signal.
3. mobile terminal charge protection method according to claim 1, which is characterized in that further include after the step B：
In the LCD display module display reminding term of mobile terminal, the function for reminding user's pausing operation mobile terminal.
4. a kind of mobile terminal charge protection system, which is characterized in that including：
Temperature detecting module, for when mobile terminal is charged, detecting the temperature of power management module in mobile terminal in real time
Degree,
Current detection module, for when mobile terminal is charged, detect in real time lithium battery anode input terminal electric current IBAT1 and
Lithium battery anode output end current IBAT2；
Protection module detects that the temperature of power management module is more than the first temperature threshold and lithium battery anode output for working as
When electric current IBAT2 being held to be more than current threshold, then output is corresponding controls signal, the PMOS tube control in driving current detection module
Unit is connected or the conducting of NMOS tube control unit, realizes lithium battery anode input terminal electric current IBAT1 or lithium battery anode output
Hold the reduction of electric current IBAT2；
The protection module further includes：
First output unit detects that the temperature of power management module is being less than second temperature threshold value and lithium battery just for working as
When pole output end current IBAT2 is less than current threshold, then first control signal is exported, first in driving current detection module
NPN triode control unit is connected, and realizes that lithium battery anode input terminal electric current IBAT1 passes through the first NPN triode control unit
Output；
The protection module further includes：
Second output unit detects that the temperature of power management module is being less than second temperature threshold value and lithium battery just for working as
When pole output end current IBAT2 is less than current threshold, then second control signal is exported, second in driving current detection module
NPN triode control unit is connected, and realizes that lithium battery anode output end current IBAT2 passes through the second NPN triode control unit
Output.
5. mobile terminal charge protection system according to claim 4, which is characterized in that the protection module is specifically wrapped
It includes：
Signal output unit, the central processing unit for sending a request signal to mobile terminal, central processing unit are deposited inside it
Storage unit retrieves the corresponding command signal of the request signal, extracts the built-in command that the command signal keeps in central processing unit
Register cell, central processing unit call the command signal to export corresponding control signal.
6. mobile terminal charge protection system according to claim 4, which is characterized in that further include：
LCD display module is used for display reminding term, the function for reminding user's pausing operation mobile terminal.
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| CN107277249A (en) * | 2017-06-20 | 2017-10-20 | 维沃移动通信有限公司 | It is a kind of to reduce the method and mobile terminal of interference of call signal |
| CN109561216A (en) * | 2018-12-19 | 2019-04-02 | 努比亚技术有限公司 | A kind of communication quality method for improving, terminal and computer readable storage medium |
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| CN203774843U (en) * | 2014-04-08 | 2014-08-13 | 成都福兰特电子技术有限公司 | Mobile terminal device battery charging circuit |
| CN104052138A (en) * | 2014-05-28 | 2014-09-17 | 惠州Tcl移动通信有限公司 | Intelligent mobile terminal and temperature control method during charging of intelligent mobile terminal |
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| JP2012161117A (en) * | 2011-01-28 | 2012-08-23 | Rohm Co Ltd | Dc/dc converter, and power supply device and electronic apparatus using the same |
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|---|---|---|---|---|
| CN103166202A (en) * | 2012-09-20 | 2013-06-19 | 深圳市金立通信设备有限公司 | System and method for reducing heating value in mobile terminal charging |
| CN203774843U (en) * | 2014-04-08 | 2014-08-13 | 成都福兰特电子技术有限公司 | Mobile terminal device battery charging circuit |
| CN104052138A (en) * | 2014-05-28 | 2014-09-17 | 惠州Tcl移动通信有限公司 | Intelligent mobile terminal and temperature control method during charging of intelligent mobile terminal |
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