CN106230077A - The power-supplying circuit of a kind of mobile terminal, method for controlling power supply and power management module - Google Patents
The power-supplying circuit of a kind of mobile terminal, method for controlling power supply and power management module Download PDFInfo
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- CN106230077A CN106230077A CN201610864396.3A CN201610864396A CN106230077A CN 106230077 A CN106230077 A CN 106230077A CN 201610864396 A CN201610864396 A CN 201610864396A CN 106230077 A CN106230077 A CN 106230077A
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- power
- mobile terminal
- battery
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- external power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
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- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The embodiment of the invention discloses the power-supplying circuit of a kind of mobile terminal, method for controlling power supply and power management module, power-supplying circuit includes external power input, battery, voltage transformation module, the first switch, mainboard, power management module, voltage comparison module, switch control module and electric capacity of voltage regulation；Voltage comparison module is connected with switch control module, power management module is connected with switch control module, switch control module and the first switch are connected, if judging for voltage comparison module, the external power source of external power input input meets threshold condition, and the instruction of power management module output connection external power source power supply circuits, then control the first switch connection external power source power supply circuits, and it is the most battery-powered, battery situation of electric discharge while charging can be reduced, reduce the discharge and recharge number of times of battery, extend battery life.It is connected if it is not, then control the first switch connection battery feed circuit, it is ensured that the power supply continuity to mobile terminal.
Description
Technical field
The present invention relates to field of terminal technology, particularly relate to the power-supplying circuit of a kind of mobile terminal, power supply control side
Method and power management module.
Background technology
Along with the development of mobile terminal technology, mobile terminal, such as mobile phone, panel computer etc., its function from strength to strength,
Gradually covering the every aspect of people's life, people are more and more stronger to the dependency of mobile terminal.Along with people are to mobile terminal
Intensive use, and the restriction of mobile terminal standby duration, often occur such a case, i.e. user use mobile eventually
During end, the dump energy of mobile terminal is relatively low, it is impossible to support that user is continuing with.
To this end, user often connects power line while using mobile terminal, in the process, on the one hand mobile terminal
Cell input terminal access external power source, be charged, on the other hand, the battery output of mobile terminal is to the master of mobile terminal
Plate is powered, to support that user is continuing with.
But, the life-span of existing rechargeable battery depends on the number of times of discharge and recharge, and battery discharges while charging,
The number of times of its discharge and recharge can be increased, reduce battery life, and battery capacity can be caused in the course of time to reduce sharply, spontaneous combustion even occurs
The series of problems such as blast.
Summary of the invention
Embodiments provide the power-supplying circuit of a kind of mobile terminal, method for controlling power supply and power management mould
Block, while being used for solving running of mobile terminal, connects the problem increasing battery charging and discharging number of times that external power source is caused.
For reaching above-mentioned purpose, the one side of the embodiment of the present invention provides the power-supplying circuit of a kind of mobile terminal,
Including: external power input, battery, voltage transformation module, the first switch, mainboard, power management module, voltage ratio relatively mould
Block, switch control module and electric capacity of voltage regulation；
Described external power input is connected with the input of described battery, forms battery charger；
Described external power input is connected with described voltage transformation module, and described voltage transformation module passes through described first
Switch is connected with described mainboard, forms external power source power supply circuits, and described battery is by described first switch and described mainboard phase
Even, form battery feed circuit, and described first switch cannot be also turned on described external power source power supply circuits and described electricity
Pond power supply circuits；
Joint after described first switch is electrically connected with described mainboard passes through described electric capacity of voltage regulation ground connection；
Described external power input is connected with described voltage comparison module, described voltage comparison module and described switch control
Molding block is connected, and described power management module is connected with described switch control module, described switch control module and described first
Switch is connected, if judging that the external power source of described external power input input meets threshold value bar for described voltage comparison module
Part, and the instruction of described power management module output connection external power source power supply circuits, then control described first switch connection institute
State external power source power supply circuits, be connected if it is not, then control battery feed circuit described in described first switch connection.
In conjunction with first aspect, in the first possible implementation of first aspect, described first switch is double for hilted broadsword
Throw switch, described switch control module is AND circuit.
In conjunction with the first possible implementation of first aspect or first aspect, possible at the second of first aspect
In implementation, described power-supplying circuit also includes low pass filter, and described external power input is by described low pass filtered
Ripple device is connected with described voltage comparison module.
In conjunction with the implementation that the second of first aspect is possible, in the third possible implementation of first aspect
In, described power management module is connected with the outfan of described voltage comparison module, ties for the output when voltage comparison module
Fruit change frequency overfrequency threshold value time, to described switch control module input connect battery feed circuit instruction.
In conjunction with first aspect, the first possible implementation of first aspect, the possible reality of the second of first aspect
Any one possible implementation in the third possible implementation of existing mode and first aspect, in the of first aspect
In four kinds of possible implementations, described power-supplying circuit also includes second switch；
Described external power input is connected with the input of described battery by described second switch；
Described power management module is connected with described second switch, for controlling the break-make of described second switch.
The second aspect of the embodiment of the present invention provides the method for controlling power supply of a kind of mobile terminal, including:
Power management module judges whether the output power of the external power source that described mobile terminal accesses exceedes output power
Threshold value；
The instruction of external power source power supply circuits is connected in the output of the most described power management module.
In conjunction with second aspect, in the first possible implementation of second aspect, if described output power is less than
Output power threshold value, described method also includes:
Described power management module judges that whether the battery dump energy of described mobile terminal is more than power threshold；
If it is not, the instruction of battery feed circuit is connected in the output of described power management module, and to connect external power source be described
The battery powered circuit of mobile terminal；
The instruction of external power source power supply circuits is connected in the output of the most described power management module, and disconnects external power source and be
The battery powered circuit of described mobile terminal.
In conjunction with the first possible implementation of second aspect, the implementation that the second in second aspect is possible
In, if the battery dump energy of described mobile terminal is more than power threshold, connect external electrical in the output of described power management module
The instruction of source power supply circuits, and before disconnecting the battery powered circuit that external power source is described mobile terminal, described method is also
Including:
Described power management module judges that whether the power consumption of described mobile terminal is higher than power consumption threshold value；
If it is not, the instruction of battery feed circuit is connected in the output of described power management module, and to connect external power source be described
The battery powered circuit of mobile terminal；
The most described power management module triggers output and connects the instruction of external power source power supply circuits, and disconnects external electrical
Source is the operation of the battery powered circuit of described mobile terminal.
The third aspect of the embodiment of the present invention provides a kind of power management module, and described power management module includes:
First judging unit, for judging whether the output power of external power source that described mobile terminal accesses exceedes power supply
Power threshold；
First output unit, for judging the confession of the external power source of described mobile terminal access when described first judging unit
When electrical power exceedes output power threshold value, the instruction of external power source power supply circuits is connected in output.
In conjunction with the third aspect, in the first possible implementation of the third aspect, if described output power is less than
Output power threshold value, described power management module also includes:
When described first judging unit, second judging unit, for judging that described output power is less than output power threshold value
Time, it is judged that whether the battery dump energy of described mobile terminal is more than power threshold；
When described second judging unit, second output unit, for judging that described battery dump energy is not more than power threshold
Time, the instruction of battery feed circuit is connected in output；
When described second judging unit, first on-unit, for judging that described battery dump energy is not more than power threshold
Time, connect the battery powered circuit that external power source is described mobile terminal；
When described second judging unit, 3rd output unit, for judging that described battery dump energy is more than power threshold
Time, the instruction of external power source power supply circuits is connected in output；
Cutting unit, for when described second judging unit judges described battery dump energy more than power threshold, disconnected
Open the battery powered circuit that external power source is described mobile terminal.
In conjunction with the first possible implementation of the third aspect, the implementation that the second in the third aspect is possible
In, described power management module also includes:
When described second judging unit, 3rd judging unit, for judging that described battery dump energy is more than power threshold
Time, it is judged that whether the power consumption of described mobile terminal is higher than power consumption threshold value；
When described 3rd judging unit, 4th output unit, for judging that described power consumption is not higher than described power consumption
During threshold value, the instruction of battery feed circuit is connected in output；
When described 3rd judging unit, second on-unit, for judging that described power consumption is not higher than described power consumption
During threshold value, connect the battery powered circuit that external power source is described mobile terminal；
When described 3rd judging unit, first trigger element, for judging that described power consumption is higher than described power consumption threshold
During value, trigger described 3rd output unit；
When described 3rd judging unit, second trigger element, for judging that described power consumption is higher than described power consumption threshold
During value, trigger described cutting unit.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
The power-supplying circuit of the mobile terminal that the present invention provides includes external power source power supply circuits and battery feed circuit,
When external power source meets threshold condition, can by power management module control connect external power source power supply circuits, and not by
Battery is powered, it is possible to reduces battery situation of electric discharge while charging, reduces the discharge and recharge number of times of battery, extend the battery longevity
Life.When external power source is unsatisfactory for threshold condition, it is possible to directly connect battery feed circuit, it is ensured that the confession to mobile terminal is electrically connected
Continuous property.
Accompanying drawing explanation
Fig. 1 is one embodiment schematic diagram of power-supplying circuit of mobile terminal of the present invention；
Fig. 2 is another embodiment schematic diagram of power-supplying circuit of mobile terminal of the present invention；
Fig. 3 is another embodiment schematic diagram of power-supplying circuit of mobile terminal of the present invention；
Fig. 4 is one embodiment schematic diagram of method for controlling power supply of mobile terminal of the present invention；
Fig. 5 is another embodiment schematic diagram of method for controlling power supply of mobile terminal of the present invention；
Fig. 6 is one embodiment schematic diagram of power management module of the present invention；
Fig. 7 is another embodiment schematic diagram of power management module of the present invention.
Detailed description of the invention
Embodiments provide the power-supplying circuit of a kind of mobile terminal, method for controlling power supply and power management mould
Block, for reducing battery situation of electric discharge while charging, extends battery life.
In order to make those skilled in the art be better understood from the present invention program, below in conjunction with in the embodiment of the present invention
Accompanying drawing, is purged the technical scheme in the embodiment of the present invention, complete description, it is clear that described embodiment is only
The embodiment of a present invention part rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under not making creative work premise, all should belong to the model of present invention protection
Enclose.
Term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second ", " the 3rd ", "
Four ", the (if present) such as " the 5th " be for distinguishing similar object, without being used for describing specific order or successively time
Sequence.Should be appreciated that the data of so use can be exchanged in the appropriate case, in order to the embodiments described herein can with except
Order beyond the content here illustrated or describe is implemented.Additionally, term " includes " and " having " and their any change
Shape, it is intended that cover non-exclusive comprising, such as, contain series of steps or the process of unit, method, system, product
Or equipment is not necessarily limited to those steps or the unit clearly listed, but can include the most clearly listing or for these
Other steps that process, method, product or equipment are intrinsic or unit.
Refer to Fig. 1, for an embodiment schematic diagram of the power-supplying circuit of mobile terminal of the present invention, the present invention implements
The power-supplying circuit of the mobile terminal of example may include that
External power input 101, battery 102, voltage transformation module the 103, first switch 104, mainboard 105, power supply pipe
Reason module 106, voltage comparison module 107, switch control module 108 and electric capacity of voltage regulation 109.
External power input 101 is connected with the input of battery 102, forms battery charger.External power source inputs
End 101 is connected with voltage transformation module 103, and voltage transformation module 103 is connected with mainboard 105, outside formation by the first switch 104
Portion's power-supplying circuit, battery 102 is connected with mainboard 105 by the first switch 104, forms battery feed circuit, and first
Switch 104 cannot be also turned on external power source power supply circuits and battery feed circuit, and the first switch 104 electrically connects with mainboard 105
Joint after connecing passes through electric capacity of voltage regulation 109 ground connection.
External power input 101 is connected with voltage comparison module 107, voltage comparison module 107 and switch control module
108 are connected, and power management module 106 is connected with switch control module 108, switch control module 108 and the first switch 104 phases
Even, if judging that the external power source that external power input 101 inputs meets threshold condition, and electricity for voltage comparison module 107
The instruction of external power source power supply circuits is connected in source control module 106 output, then control the first switch 104 connection external power source and power
Circuit, is connected if it is not, then control the first switch 104 connection battery feed circuit.
In figure, solid line is supply line, and dotted line is control circuit.
Wherein, the electric capacity of electric capacity of voltage regulation 109 is relatively big, and therefore the voltage on electric capacity of voltage regulation 109 can not suddenly change, so can be the
Voltage dithering will not be produced, it is to avoid mainboard 105 causes power down because of voltage dithering, causes mobile during one switch 104 switching
Terminal closedown.
The voltage of external power source can be compared by voltage comparison module 107 with preset normalization voltage range, if electric
Pressure comparison module 107 judges that the voltage of external power source in preset normalization voltage range, then can be determined that external power source inputs
The external power source of end 101 input meets threshold condition, if voltage comparison module 107 judges that the voltage of external power source is not preset
In normalization voltage range, then can be determined that the external power source that external power input 101 inputs is unsatisfactory for threshold condition.Work as outside
When power supply disconnects suddenly, voltage comparison module 107 can directly judge that the external power source of external power input 101 input is unsatisfactory for
Threshold condition, causes switch control module 108 to control the first switch 104 and connects battery feed circuit, controls to compare with software, phase
Answer speed faster, it is achieved uninterrupted power supply.
In actual use, the first switch 104 can be single-pole double-throw switch (SPDT), and the first switch 104 is at two kinds of shapes
State, a connection external power source power supply circuits, or only connect battery feed circuit.
Switch control module 108 can be AND circuit.Concrete, Ke Yiwei, when external power source meets threshold condition,
Voltage comparison module 107 can export 1, and when external power source is unsatisfactory for threshold condition, voltage comparison module 107 can export 0.
Power management module 106 exports 1, can represent output and connect the instruction of external power source power supply circuits, and power management module 106 is defeated
Go out 0, output can be represented and connect the instruction of battery feed circuit.Only when power management module 106 and voltage comparison module 107
When exporting 1, AND circuit just can export 1, in the case of other, i.e. exports 1 and voltage ratio relatively mould when power management module 106 simultaneously
When block 107 exports 0, or when power management module 106 exports 0 and voltage comparison module 107 exports 1, or when power supply pipe
Reason module 106 exports 0 and voltage comparison module 107 when exporting 0, and AND circuit all exports 0.When AND circuit exports 1, control
First switch 104 connection external power source power supply circuits, when AND circuit exports 0, control the first switch 104 connection battery and power
Circuit.So only meet threshold condition when external power source, and external power source power supply circuits are connected in power management module 106 output
Instruction time, the first switch 104 just can connect external power source power supply circuits.
When outside plant-grid connection external power input 101, easily occurring that outer power voltage is unstable, voltage swing is acute
Strong fluctuation, for solving this problem, it is preferred that refer to Fig. 2, power-supplying circuit can also include low pass filter 110, outward
Portion's power input 101 is connected with voltage comparison module 107 by low pass filter 110, and external power source is through low pass filter
110, it is possible to filter high-frequency ac composition therein, compare with normalization voltage range by voltage comparison module 107, it is possible to
The situation that the first switch 104 avoiding voltage instability to cause toggles.
In order to further filter out the low-frequency ac composition in external power source, it is to avoid the first switch 104 that voltage instability causes
Situation about toggling, it is preferred that refer to Fig. 2, power management module 106 is connected with the outfan of voltage comparison module 107,
When the change frequency overfrequency threshold value of the output result when voltage comparison module 107, input to switch control module 108
Connect the instruction of battery feed circuit.Concrete, power management module 106 can detect in preset time period with opening timing device
The output result of voltage comparison module 107, such as, the output result of detection voltage comparison module 107 is 0 or 1, if preset
Detect in duration that output results change number of times exceedes threshold value, change in such as 2s 2 times, then judge voltage comparison module 107
The change frequency overfrequency threshold value of output result, and continue on intervalometer, now can be reminded outside user by pop-up
Power supply is nonconforming, it is proposed that detection external power source, and exports the instruction accessing battery feed circuit, so, even if a certain moment
The voltage of external power source meets voltage threshold condition, and the first switch 104 also can connect battery feed circuit, until at preset time period
When the output results change number of times inside detected is less than threshold value, power management module 106 just exports connection external power source and powers
The instruction of circuit, so meets voltage threshold condition when the voltage of external power source, and the first switch 104 can be connected external power source and supply
Electricity circuit.
Life often occurring, such situation, i.e. user utilize car to fill or mobile electricity during using mobile terminal
Mobile terminal is charged by source, fills due to car or the output power of portable power source is relatively low, it is difficult to while charging battery
Main board power supply to mobile terminal, therefore, the power-supplying circuit that the present invention provides can also include second switch 111, please join
Readding Fig. 3, external power input 101 is connected with the input of battery 102 by second switch 111, power management module 106 and
Second switch 111 is connected, for controlling the break-make of second switch 111.So, when selecting to connect external power source power supply circuits,
Power management module 106 can control second switch 111 and disconnect so that external power source is only powered for mainboard 105, is not battery
102 chargings, it is ensured that the user's normal use to mobile terminal.
Based on the embodiment that Fig. 1, Fig. 2 are corresponding, the present invention provides the method for controlling power supply of a kind of mobile terminal, refer to figure
4, for one embodiment schematic diagram of method for controlling power supply of mobile terminal of the present invention, method for controlling power supply includes:
401, power management module judges whether the output power of external power source that mobile terminal accesses exceedes output power
Threshold value, the most then perform step 402, if it is not, then perform step 403；
Power management module can detect the output power of the external power source that mobile terminal accesses, and judges that output power is
The no output power threshold value that exceedes, the most then perform step 402, if it is not, then perform step 403.
402, the instruction of external power source power supply circuits is connected in power management module output；
If the output power that power management module judges the external power source that mobile terminal accesses exceedes output power threshold value, electricity
The instruction of external power source power supply circuits is connected in the output of source control module, when voltage comparison module judges that external power source meets threshold value bar
During part, switch control module controls the first switch connection external power source power supply circuits, external power source be the mainboard of mobile terminal
Power supply.
403, other operations are performed.
If power management module judge the output power of the external power source that mobile terminal accesses not less than output power threshold value,
The most do not perform step 402, perform other operations, such as output and connect the instruction of external power source power supply circuits, continue judgement mobile
Whether the output power of the external power source that terminal accesses exceedes output power threshold value.
The external power source being charged for mobile terminal generally includes standard charging and mobile charging, and standard charging is in other words
Indoor charging, refers to that utilizing civil power to pass through standard charger charges for mobile terminal with data wire, and mobile charging generally comprises profit
It is mobile terminal charging with vehicle power or portable power source.The external power source power of standard charging is bigger, it is possible to for battery
While charging, for the main board power supply of mobile terminal.And the external power source power of mobile charging is less, it is difficult to charging for battery
While, it is individually for the main board power supply of mobile terminal, when especially mobile terminal power consumption is bigger.
Based on the embodiment that Fig. 3 is corresponding, during the present invention provides one can be applied to standard charging and mobile charging
Method for controlling power supply, refer to Fig. 5, be another embodiment schematic diagram of method for controlling power supply of mobile terminal of the present invention, supply
Electric control method includes:
501, power management module judges whether the output power of external power source that mobile terminal accesses exceedes output power
Threshold value, the most then perform step 502, if it is not, then perform step 503；
Power management module can detect the output power of the external power source that mobile terminal accesses, and judges that output power is
The no output power threshold value that exceedes, the most then perform step 502, if it is not, then perform step 503.
502, the instruction of external power source power supply circuits is connected in power management module output；
If the output power that power management module judges the external power source that mobile terminal accesses exceedes output power threshold value, electricity
The instruction of external power source power supply circuits is connected in the output of source control module, when voltage comparison module judges that external power source meets threshold value bar
During part, switch control module controls the first switch connection external power source power supply circuits, external power source be the mainboard of mobile terminal
Power supply.Now, owing to the output power of external power source is relatively big, external power source charges for battery simultaneously.
503, power management module judges whether the battery dump energy of mobile terminal is more than power threshold, if it is not, then hold
Row step 504, the most then perform step 506；
If power management module judge the output power of the external power source that mobile terminal accesses not less than output power threshold value,
Then may determine that the battery dump energy of mobile terminal, whether more than power threshold, if it is not, then perform step 504, is the most then held
Row step 506.
504, the instruction of battery feed circuit is connected in power management module output；
If the battery dump energy that power management module judges mobile terminal is not more than power threshold, then battery is connected in output
The instruction of power supply circuits.Now, no matter what the output result of voltage comparison module is, switch control module all can control first
Switch connection battery feed circuit, is the main board power supply of mobile terminal by battery.
505, power management module connects the battery powered circuit that external power source is mobile terminal；
If the battery dump energy that power management module judges mobile terminal is not more than power threshold, then power management module
Connect second switch so that external power source is that the battery of mobile terminal is powered.If second switch is the most in an ON state, step
Rapid 505 represent the on-state continuing to keep second switch.
It should be noted that step 505 can also perform before step 504, as long as performing after the step 503 i.e.
Can.
506, power management module judges whether the power consumption of mobile terminal is higher than power consumption threshold value, if it is not, then hold
Row step 507, the most then perform step 510；
If power management module judges that the battery dump energy of mobile terminal, more than power threshold, works as external power source in other words
Charge for battery so that when the dump energy of battery is more than power threshold, power management module may determine that the consumption of mobile terminal
Electrical power, whether higher than power consumption threshold value, if it is not, then perform step 507, the most then performs step 510.Running of mobile terminal
Program different, its power consumption is the most different, and the power consumption such as such as GPS location, video playback relatively greatly, and browses the consumption of webpage
Electrical power is less.So judge that whether the power consumption of mobile terminal is higher than power consumption, it is also possible to for, it is judged that current application is
The no high power consumption application for presetting.Threshold power threshold value can be by user setup, it is also possible to for the numerical value of acquiescence, occurrence is permissible
For Full Charge Capacity 65%.When battery dump energy is more than 65%, power management module may determine that the power consumption merit of mobile terminal
Whether rate is higher than power consumption threshold value, after obtaining judged result, it is also possible to export the option of supply line to user, by user
Select.
507, the instruction of battery feed circuit is connected in power management module output；
If the power consumption that power management module judges mobile terminal is not higher than power consumption threshold value, power management module is defeated
Go out to connect the instruction of battery feed circuit.Now, no matter what the output result of voltage comparison module is, switch control module is equal
The first switch connection battery feed circuit can be controlled, battery be the main board power supply of mobile terminal.
508, power management module connects the battery powered circuit that external power source is mobile terminal；
If power management module judges that the power consumption of mobile terminal is not higher than power consumption threshold value, then power management module
Connect second switch so that external power source is that the battery of mobile terminal is powered.If second switch is the most in an ON state, step
Rapid 508 represent the on-state continuing to keep second switch.
It should be noted that step 508 can also perform before step 507, as long as performing after procedure 506 i.e.
Can.
509, the instruction of external power source power supply circuits is connected in power management module output；
If the power consumption that power management module judges mobile terminal is not higher than power consumption threshold value, power management module is defeated
Going out to connect the instruction of battery feed circuit, switch control module controls the first switch connection battery feed circuit, battery be shifting
The main board power supply of dynamic terminal.When the full electricity of battery, power management module output is connected the instruction of external power source power supply circuits, is reduced
The discharge and recharge number of times of battery, extends its life-span.
510, the instruction of external power source power supply circuits is connected in power management module output；
If the power consumption that power management module judges mobile terminal exports higher than power consumption threshold value, power management module
Connect the instruction of battery feed circuit.Owing to external power source is that mainboard is directly powered, and external power source is that mainboard supplies by battery
Electricity is compared, and power supplying efficiency is higher, when the output power of external power source is less, and when power consumption is bigger, in order to ensure currently should
With continuing to run with, preferably connect external power source power supply circuits, external power source be directly main board power supply.Now, if voltage ratio relatively
Module judges that external power source meets threshold condition, and switch control module can control the first switch connection external power source power supply circuits,
Can realize by external power source directly for the main board power supply of mobile terminal.
511, power management module disconnects the battery powered circuit that external power source is mobile terminal.
If the power consumption that power management module judges mobile terminal exports higher than power consumption threshold value, power management module
Connect the instruction of battery feed circuit, if voltage comparison module judges that external power source meets threshold condition, switch control module meeting
Control the first switch connection external power source power supply circuits, can realize by external power source directly for the main board power supply of mobile terminal.By
Less in the output power of external power source, in order to ensure that the application that external power source supports that power consumption is bigger continues to run with, power supply
Management module needs to disconnect the battery powered circuit that external power source is mobile terminal.When power consumption is less than power consumption threshold value
Time, or when external power source switches to the power supply that output power is more than output power threshold value, outside power management module can be connected
Portion's power supply is the battery powered circuit of mobile terminal.
Above the method for controlling power supply of the mobile terminal in the embodiment of the present invention is described, real to the present invention below
The power management module executed in example is described.
Referring to Fig. 6, in the embodiment of the present invention, an embodiment of power management module includes:
First judging unit 601, for judging whether the output power of external power source that mobile terminal accesses exceedes power supply
Power threshold；
First output unit 602, for judging the power supply of the external power source that mobile terminal accesses when the first judging unit 601
When power exceedes output power threshold value, the instruction of external power source power supply circuits is connected in output.
The pass between power management module each unit in the present embodiment refers to embodiment corresponding to Fig. 4, the most superfluous
State.
Referring to Fig. 7, in the embodiment of the present invention, an embodiment of power management module includes:
First judging unit 701, for judging whether the output power of external power source that mobile terminal accesses exceedes power supply
Power threshold.
First output unit 702, for judging the power supply of the external power source that mobile terminal accesses when the first judging unit 701
When power exceedes output power threshold value, the instruction of external power source power supply circuits is connected in output.
When the first judging unit 701, second judging unit 703, for judging that output power is less than output power threshold value
Time, it is judged that whether the battery dump energy of mobile terminal is more than power threshold.
When the second judging unit 703, second output unit 704, for judging that battery dump energy is not more than power threshold
Time, the instruction of battery feed circuit is connected in output.
When the second judging unit 703, first on-unit 705, for judging that battery dump energy is not more than power threshold
Time, connect the battery powered circuit that external power source is mobile terminal.
3rd judging unit 706, is used for when the second judging unit 703 judges that battery dump energy is more than power threshold,
Judge that whether the power consumption of mobile terminal is higher than power consumption threshold value.
When the 3rd judging unit 706,4th output unit 707, for judging that power consumption is not higher than power consumption threshold value
Time, the instruction of battery feed circuit is connected in output.
When the 3rd judging unit 706, second on-unit 708, for judging that power consumption is not higher than power consumption threshold value
Time, connect the battery powered circuit that external power source is mobile terminal.
5th output unit 709, for during when battery full electricity, the instruction of external power source power supply circuits is connected in output.
3rd output unit 710, for when the second judging unit judges battery dump energy more than power threshold, exporting
Connect the instruction of external power source power supply circuits.
Cutting unit 711, for when the second judging unit judges battery dump energy more than power threshold, disconnects outside
Power supply is the battery powered circuit of mobile terminal.
The pass between power management module each unit in the present embodiment refers to embodiment corresponding to Fig. 5, the most superfluous
State.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method are permissible
Realize by another way.Such as, device embodiment described above is only schematically, such as, and described unit
Dividing, be only a kind of logic function and divide, actual can have other dividing mode, the most multiple unit or assembly when realizing
Can in conjunction with or be desirably integrated into another system, or some features can be ignored, or does not performs.Another point, shown or
The coupling each other discussed or direct-coupling or communication connection can be the indirect couplings by some interfaces, device or unit
Close or communication connection, can be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, shows as unit
The parts shown can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of the present embodiment scheme
's.
The above, above example only in order to technical scheme to be described, is not intended to limit；Although with reference to front
State embodiment the present invention has been described in detail, it will be understood by those within the art that: it still can be to front
State the technical scheme described in each embodiment to modify, or wherein portion of techniques feature is carried out equivalent；And these
Amendment or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (11)
1. the power-supplying circuit of a mobile terminal, it is characterised in that including:
External power input, battery, voltage transformation module, the first switch, mainboard, power management module, voltage comparison module,
Switch control module and electric capacity of voltage regulation；
Described external power input is connected with the input of described battery, forms battery charger；
Described external power input is connected with described voltage transformation module, and described voltage transformation module switchs by described first
Being connected with described mainboard, form external power source power supply circuits, described battery is connected with described mainboard by described first switch, shape
Become battery feed circuit, and described first switch cannot be also turned on described external power source power supply circuits and described battery is powered
Circuit；
Joint after described first switch is electrically connected with described mainboard passes through described electric capacity of voltage regulation ground connection；
Described external power input is connected with described voltage comparison module, described voltage comparison module and described on-off control mould
Block is connected, and described power management module is connected with described switch control module, described switch control module and described first switch
It is connected, if judging that the external power source of described external power input input meets threshold condition for described voltage comparison module,
And the output of described power management module connects the instruction of external power source power supply circuits, then outside controlling described in described first switch connection
Portion's power-supplying circuit, is connected if it is not, then control battery feed circuit described in described first switch connection.
The power-supplying circuit of mobile terminal the most according to claim 1, it is characterised in that described first switch is hilted broadsword
Commutator, described switch control module is AND circuit.
The power-supplying circuit of mobile terminal the most according to claim 1, it is characterised in that described power-supplying circuit is also
Including low pass filter, described external power input is connected with described voltage comparison module by described low pass filter.
The power-supplying circuit of mobile terminal the most according to claim 3, it is characterised in that described power management module with
The outfan of described voltage comparison module is connected, for the change frequency overfrequency threshold of the output result when voltage comparison module
During value, connect the instruction of battery feed circuit to the input of described switch control module.
The power-supplying circuit of mobile terminal the most according to any one of claim 1 to 4, it is characterised in that described confession
Electric control circuit also includes second switch；
Described external power input is connected with the input of described battery by described second switch；
Described power management module is connected with described second switch, for controlling the break-make of described second switch.
6. a method for controlling power supply for mobile terminal, confession based on the mobile terminal as according to any one of Claims 1-4
Electric control circuit, it is characterised in that described method includes:
Power management module judges whether the output power of the external power source that described mobile terminal accesses exceedes output power threshold value；
The instruction of external power source power supply circuits is connected in the output of the most described power management module.
The method for controlling power supply of mobile terminal the most according to claim 6, based on mobile terminal as claimed in claim 5
Power-supplying circuit, it is characterised in that if described output power is less than output power threshold value, described method also includes:
Described power management module judges that whether the battery dump energy of described mobile terminal is more than power threshold；
If it is not, the instruction of battery feed circuit is connected in the output of described power management module, and to connect external power source be described movement
The battery powered circuit of terminal；
The instruction of external power source power supply circuits is connected in the output of the most described power management module, and to disconnect external power source be described
The battery powered circuit of mobile terminal.
The method for controlling power supply of mobile terminal the most according to claim 7, it is characterised in that if the electricity of described mobile terminal
Pond dump energy is more than power threshold, connects the instruction of external power source power supply circuits in the output of described power management module, and breaks
Before opening the battery powered circuit that external power source is described mobile terminal, described method also includes:
Described power management module judges that whether the power consumption of described mobile terminal is higher than power consumption threshold value；
If it is not, the instruction of battery feed circuit is connected in the output of described power management module, and to connect external power source be described movement
The battery powered circuit of terminal；
The most described power management module triggers output and connects the instruction of external power source power supply circuits, and disconnects external power source and be
The operation of the battery powered circuit of described mobile terminal.
9. a power management module, power supply control based on the mobile terminal as according to any one of Claims 1-4 electricity
Road, it is characterised in that described power management module includes:
First judging unit, for judging whether the output power of external power source that described mobile terminal accesses exceedes output power
Threshold value；
First output unit, for judging the confession electric work of the external power source of described mobile terminal access when described first judging unit
When rate exceedes output power threshold value, the instruction of external power source power supply circuits is connected in output.
Power management module the most according to claim 9, based on mobile terminal as claimed in claim 5 for automatically controlled
Circuit processed, it is characterised in that if described output power is less than output power threshold value, described power management module also includes:
Second judging unit, is used for when described first judging unit judges described output power less than output power threshold value,
Judge that whether the battery dump energy of described mobile terminal is more than power threshold；
Second output unit, is used for when described second judging unit judges that described battery dump energy is not more than power threshold,
The instruction of battery feed circuit is connected in output；
First on-unit, is used for when described second judging unit judges that described battery dump energy is not more than power threshold,
Connect the battery powered circuit that external power source is described mobile terminal；
3rd output unit, for when described second judging unit judges described battery dump energy more than power threshold, defeated
Go out to connect the instruction of external power source power supply circuits；
Cutting unit, is used for when described second judging unit judges described battery dump energy more than power threshold, outside disconnection
Portion's power supply is the battery powered circuit of described mobile terminal.
11. power management modules according to claim 10, it is characterised in that described power management module also includes:
3rd judging unit, for when described second judging unit judges described battery dump energy more than power threshold, sentencing
Whether the power consumption of disconnected described mobile terminal is higher than power consumption threshold value；
When described 3rd judging unit, 4th output unit, for judging that described power consumption is not higher than described power consumption threshold value
Time, the instruction of battery feed circuit is connected in output；
When described 3rd judging unit, second on-unit, for judging that described power consumption is not higher than described power consumption threshold value
Time, connect the battery powered circuit that external power source is described mobile terminal；
When described 3rd judging unit, first trigger element, for judging that described power consumption is higher than described power consumption threshold value
Time, trigger described 3rd output unit；
When described 3rd judging unit, second trigger element, for judging that described power consumption is higher than described power consumption threshold value
Time, trigger described cutting unit.
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| CN201610864396.3A CN106230077B (en) | 2016-09-29 | 2016-09-29 | A kind of power-supplying circuit of mobile terminal, method for controlling power supply and power management module |
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| CN201610864396.3A CN106230077B (en) | 2016-09-29 | 2016-09-29 | A kind of power-supplying circuit of mobile terminal, method for controlling power supply and power management module |
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