CN108539721A - A kind of method and electronic equipment of overcurrent protection - Google Patents
A kind of method and electronic equipment of overcurrent protection Download PDFInfo
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- CN108539721A CN108539721A CN201810291462.1A CN201810291462A CN108539721A CN 108539721 A CN108539721 A CN 108539721A CN 201810291462 A CN201810291462 A CN 201810291462A CN 108539721 A CN108539721 A CN 108539721A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
- G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
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- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
This application provides a kind of methods of overcurrent protection, including：Detect the cell voltage of the electronic equipment and the current value of system；It is reduced to the first predetermined threshold value from the first voltage value within a preset period of time based on the cell voltage, judges whether the current value meets default overcurrent condition, obtains the first judging result；The current value, which is characterized, based on first judging result meets overcurrent condition of presetting, triggering stabilization mechanism, to prevent the electronic equipment automatic shutdown.Using the program, after the cell voltage is reduced rapidly to the first predetermined threshold value, when determining that the current value of the system is overcurrent, then trigger stabilization mechanism, it prevents because the pulse current as overcurrent continues for some time the automatic shutdown for leading to equipment, ensure that battery when remaining capacity is more will not automatic shutdown, improve the experience of user.
Description
Technical field
The present invention relates to electronic device fields, and more specifically, it relates to a kind of method of overcurrent protection and electronic equipments.
Background technology
With the development of electronic technology, the continuous promotion of the processor performance of equipment, corresponding power consumption is also continuously improved, and
In electronic equipment operational process, it is easy to the case where overcurrent occur, for example, (duration is the several seconds to number to pulse current peak
Minute) current value when substantially exceeding normal operation, and the peak value is still being continuously improved, due to pulse current continuous discharging time
It is longer, it is easy to allow for cell voltage and extremely decay, so as to cause some row problems.
In the prior art, it to prevent cell voltage from extremely decaying, is then just opened when cell voltage reaches forced shutdown voltage
Dynamic shutdown process.This method is used, once automatic shutdown flow will be triggered by pulse current occur so that and the equipment is closed automatically
Machine, but the remaining capacity of battery is in fact also many at this time, causes to reduce user experience.
Invention content
In view of this, the present invention provides a kind of method of overcurrent protection, solves and once pulse occur in the prior art
Electric current will trigger the problem of automatic shutdown flow.
To achieve the above object, the present invention provides the following technical solutions：
A kind of method of overcurrent protection, the method are applied to electronic equipment, the method includes：
Detect the cell voltage of the electronic equipment and the current value of system；
The first predetermined threshold value is reduced to from the first voltage value, described in judgement within a preset period of time based on the cell voltage
Whether current value meets default overcurrent condition, obtains the first judging result；
The current value is characterized based on first judging result and meets default overcurrent condition, triggers stabilization mechanism, to prevent
The only electronic equipment automatic shutdown.
Above-mentioned method, it is preferred that whether the cell voltage from the first voltage value is reduced within a preset period of time
After one predetermined threshold value, it is described judge whether the current value meets default overcurrent condition before, further include：
Judge whether the first voltage value of the cell voltage is more than the second predetermined threshold value, obtains the second judging result；
The first voltage value that cell voltage is characterized based on second judging result is more than the second predetermined threshold value, executes step
Judge whether the current value meets default overcurrent condition；
The first voltage value that cell voltage is characterized based on second judging result is not more than the second predetermined threshold value, controls institute
It states electronic equipment and enters shutdown process.
Above-mentioned method, it is preferred that the triggering stabilization mechanism is specific to wrap to prevent the electronic equipment automatic shutdown
It includes：
The electronic equipment operating parameter is adjusted, so that until the current value returns back to when meeting default normal condition
The electronic equipment maintains open state.
Above-mentioned method, it is preferred that the adjustment electronic equipment operating parameter specifically includes：
It is reduced to third predetermined threshold value, the third default from the first predetermined threshold value the shutdown voltage of the electronic equipment
Internal resistance of the threshold value based on battery, the current value of the system are related to first predetermined threshold value.
Above-mentioned method, it is preferred that after the adjustment electronic equipment operating parameter, further include：
The current value return back to satisfaction preset normal condition when, the shutdown voltage of the electronic equipment is preset from third
Adjusting thresholds are the first predetermined threshold value.
Above-mentioned method, it is preferred that the adjustment electronic equipment operating parameter specifically includes：
The first application program is obtained, the first application program operation causes the current value of the system to be increased to meet in advance
If overcurrent condition；
Stop the operation of first application program；
Prompt message is generated, the prompt message is for prompting user to continue to run with first application program and can cause
System shutdown.
A kind of electronic equipment of overcurrent protection, including：
Battery；
System；
Processor, the current value of cell voltage and system for detecting the electronic equipment；Based on battery electricity
Pressure is reduced to the first predetermined threshold value from the first voltage value within a preset period of time, judges whether the current value meets default overcurrent
Condition obtains the first judging result；The current value, which is characterized, based on first judging result meets overcurrent condition of presetting, triggering
Stabilization mechanism, to prevent the electronic equipment automatic shutdown.
Above-mentioned electronic equipment, it is preferred that processor triggers stabilization mechanism, to prevent the electronic equipment automatic shutdown,
It specifically includes：
The electronic equipment operating parameter is adjusted, so that until the current value returns back to satisfaction and presets normal condition
When, the electronic equipment maintains open state.
Above-mentioned electronic equipment, it is preferred that processor adjusts the electronic equipment operating parameter, specifically includes：
It is reduced to third predetermined threshold value, the third default from the first predetermined threshold value the shutdown voltage of the electronic equipment
Internal resistance of the threshold value based on battery, the current value of the system are related to first predetermined threshold value.
Above-mentioned electronic equipment, it is preferred that processor adjusts the electronic equipment operating parameter, specifically includes：
The first application program is obtained, the first application program operation causes the current value of the system to be increased to meet in advance
If overcurrent condition；
Stop the operation of first application program；
Prompt message is generated, the prompt message is for prompting user to continue to run with first application program and can cause
System shutdown.
It can be seen via above technical scheme that compared with prior art, an embodiment of the present invention provides a kind of overcurrent protections
Method, including：Detect the cell voltage of the electronic equipment and the current value of system；Based on the cell voltage default
It is reduced to the first predetermined threshold value from the first voltage value in period, judges whether the current value meets default overcurrent condition, obtains
To the first judging result；The current value, which is characterized, based on first judging result meets overcurrent condition of presetting, triggering stabilization machine
System, to prevent the electronic equipment automatic shutdown.Using the program, when the cell voltage is reduced rapidly to the first predetermined threshold value
Afterwards, when determining that the current value of the system is overcurrent, then stabilization mechanism is triggered, prevents the pulse because as overcurrent
Electric current continues for some time the automatic shutdown for leading to equipment, ensure that battery will not close automatically when remaining capacity is more
Machine improves the experience of user.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of flow chart of the embodiment of the method 1 of overcurrent protection provided by the present application；
Fig. 2 is a kind of flow chart of the embodiment of the method 2 of overcurrent protection provided by the present application；
Fig. 3 is a kind of flow chart of the embodiment of the method 3 of overcurrent protection provided by the present application；
Fig. 4 is a kind of flow chart of the embodiment of the method 4 of overcurrent protection provided by the present application；
Fig. 5 is a kind of flow chart of the embodiment of the method 5 of overcurrent protection provided by the present application；
Fig. 6 is a kind of flow chart of the embodiment of the method 6 of overcurrent protection provided by the present application；
Fig. 7 is a kind of structural schematic diagram of the electronic equipment embodiment 1 of overcurrent protection provided by the present application.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Wherein, comprising battery and system in the electronic equipment, which is used to the portion that electronic equipment provides electricity
Part has internal resistance in the battery；The system refers to the system of the structure composition in the electronic equipment, which is the electronic equipment
System power supply.
As shown in Figure 1, it is a kind of flow chart of the embodiment of the method 1 of overcurrent protection provided by the present application, this method is answered
Include battery and system in the electronic equipment, this approach includes the following steps for an electronic equipment：
Step S101：Detect the cell voltage of the electronic equipment and the current value of system；
Wherein, operation has program in the electronic equipment, which can be to the cell voltage of electronic equipment and the electricity of system
Flow valuve is detected.
It should be noted that the cell voltage of the Programmable detection is the output voltage of the battery.
When the system worked well of electronic equipment, the current value of the system is relatively low, correspondingly, the internal resistance pressure drop electricity of the battery
Pressure also can be very low (almost nil).
For example, when the system worked well, which is the low current less than 1A (ampere), and the internal resistance of cell is
100mohm (milliohm).
Step S102：Based on the cell voltage the first default threshold is reduced to from the first voltage value within a preset period of time
Value, judges whether the current value meets default overcurrent condition, obtains the first judging result；
Wherein, which can refer to the shorter time, such as can be instantaneous.
Wherein, when the system normal operation of the electronic equipment, voltage value is higher, when the electricity reduction of its battery causes to close
When machine, voltage value is the first predetermined threshold value.
For example, first predetermined threshold value is referred to as the shutdown voltage of the electronic equipment, 3.4V (volts are such as could be provided as
It is special), then when the system normal operation of the electronic equipment, voltage value is more than the 3.4V.
Correspondingly, when there is pulse current in the system of the electronic equipment, since the peak value of pulse current is generally higher,
And the duration is longer, then the internal resistance of battery can be caused to generate pressure drop, occur that internal resistance of cell pressure drop is larger, so that battery
Output voltage reduces.
For example, when the first voltage value of cell voltage is 3.8V, if there are one the pulse currents of 4A or more to occur at this time,
Cell voltage moment can be made to be pulled down to 3.4V (=3.8V-0.1ohm × 4A), the shutdown voltage of the electronic equipment can be
3.4V。
Since cell voltage is reduced to shutdown voltage, occur the problem of error cut-off machine in order to prevent, needs to judge the electronics
Whether the electric current in equipment is normal, if electric current is normal, it may be considered that the not enough power supply of battery is to support in the electronic equipment
System operation in electronic equipment, shuts down, and if electric current is overcurrent, it may be considered that the electronic equipment can also be
Normal operation under certain condition.
Wherein, which refers to that the current value of the electronic equipment is more than a certain threshold value, if the threshold value can be 2V；
Can be the current value of the electronic equipment close to a certain threshold value more than normal operating current, such as 4A, 3.5A, 3A, 2.5A, example
If 3.51-4A is close to 4A；3.01-3.5A is close to 3.5A；2.51-3A is close to 3A；2.01-2.5A being close to 2.5A ...
Step S103：The current value, which is characterized, based on first judging result meets overcurrent condition of presetting, triggering stabilization
Mechanism, to prevent the electronic equipment automatic shutdown.
Wherein, when the current value of the system, which meets, presets overcurrent condition, then stabilization mechanism is triggered, which is to use
In the voltage dithering for electric device battery, i.e., when there is pulse current to occur, the electricity of the battery of the electronic equipment can be led to
Existing significantly change is extruded, to prevent the significantly change from influencing the electronic equipment, then the stabilization mechanism is provided with, to prevent the electronics
Equipment automatic shutdown.
It should be noted that can be explained in detail for the triggering stabilization mechanism in subsequent embodiment, in the present embodiment
It is not detailed.
It should be noted that the value of each threshold value involved in the present embodiment is not limited to taking in the present embodiment
Value, in specific implementation, can also use other values.
To sum up, the method for a kind of overcurrent protection provided in this embodiment, including：Detect the cell voltage of the electronic equipment
And the current value of system；Based on the cell voltage the first default threshold is reduced to from the first voltage value within a preset period of time
Value, judges whether the current value meets default overcurrent condition, obtains the first judging result；Based on the first judging result table
It levies the current value and meets overcurrent condition of presetting, triggering stabilization mechanism, to prevent the electronic equipment automatic shutdown.Using the party
Case when determining that the current value of the system is overcurrent, is then touched after the cell voltage is reduced rapidly to the first predetermined threshold value
Stabilization mechanism is sent out, prevents from, because the pulse current as overcurrent continues for some time the automatic shutdown for leading to equipment, ensureing
Battery when remaining capacity is more will not automatic shutdown, improve the experience of user.
As shown in Figure 2, it is a kind of flow chart of the embodiment of the method 2 of overcurrent protection provided by the present application, this method packet
Include following steps：
Step S201：Detect the cell voltage of the electronic equipment and the current value of system；
Wherein, step S201 is consistent with the step S101 in embodiment 1, is not repeated in the present embodiment.
Step S202：Based on the cell voltage the first default threshold is reduced to from the first voltage value within a preset period of time
Value, judges whether the first voltage value of the cell voltage is more than the second predetermined threshold value, obtains the second judging result；
In specific implementation, when the cell voltage of electronic equipment is more than the second predetermined threshold value, then it can support system to transport
Row, and when it is not more than second predetermined threshold value, it may be considered that the electricity of the battery is less, since the cell voltage is pre-
If from the first voltage value being reduced to the first predetermined threshold value in the period, then it is larger to characterize internal resistance of cell partial pressure, leads to the battery
Remaining capacity be not enough to the operation of support system.
Therefore, it is also desirable to judge whether the first voltage value of the cell voltage is more than the second predetermined threshold value, this is second default
Threshold value is a value for being slightly larger than the first predetermined threshold value.
For example, the shutdown voltage (i.e. the first predetermined threshold value) of the electronic equipment selects 3.4V, then second predetermined threshold value can
To select 3.5V.
Step S203：The first voltage value that cell voltage is characterized based on second judging result is not more than the second default threshold
Value, controls the electronic equipment and enters shutdown process；
Wherein, when the first voltage value of the cell voltage be not more than second predetermined threshold value, then characterize the residue of the battery
Not enough power supply is to support the operation of system, at this point, controlling the electronic equipment enters shutdown process, to prevent cell voltage from extremely declining
Subtract, the hardware (battery and/or other structures) of electronic equipment is damaged.
Correspondingly, the first voltage value of the cell voltage is more than second predetermined threshold value, then the residue electricity of the battery is characterized
Amount can support the operation of system, at this point, being then the error cut-off machine for preventing the electronic equipment, carry out follow-up step S204-205.
Step S204：The first voltage value that cell voltage is characterized based on second judging result is more than the second default threshold
Value, judges whether the current value meets default overcurrent condition, obtains the first judging result；
Step S205：The current value, which is characterized, based on first judging result meets overcurrent condition of presetting, triggering stabilization
Mechanism, to prevent the electronic equipment automatic shutdown.
Wherein, step S204-205 is consistent with the step S102-103 in embodiment 1, is not repeated in the present embodiment.
It should be noted that the value of each threshold value involved in the present embodiment is not limited to taking in the present embodiment
Value, in specific implementation, can also use other values.
To sum up, in a kind of method of overcurrent protection provided in this embodiment, the cell voltage is within a preset period of time
It is no after the first voltage value is reduced to the first predetermined threshold value, it is described judge the current value whether meet default overcurrent condition it
Before, further include：Judge whether the first voltage value of the cell voltage is more than the second predetermined threshold value, obtains the second judging result；
The first voltage value that cell voltage is characterized based on second judging result is more than the second predetermined threshold value, executes described in step judgement
Whether current value meets default overcurrent condition；The first voltage value that cell voltage is characterized based on second judging result is not more than
Second predetermined threshold value controls the electronic equipment and enters shutdown process.Using this method, it is based on judging whether the cell voltage is big
It in the second predetermined threshold value, determines whether the remaining capacity of battery is enough to support the operation of system, prevents cell voltage from extremely decaying.
As shown in Figure 3, it is a kind of flow chart of the embodiment of the method 3 of overcurrent protection provided by the present application, this method packet
Include following steps：
Step S301：Detect the cell voltage of the electronic equipment and the current value of system；
Step S302：Based on the cell voltage the first default threshold is reduced to from the first voltage value within a preset period of time
Value, judges whether the current value meets default overcurrent condition, obtains the first judging result；
Wherein, step S301-302 is consistent with the step S101-102 in embodiment 1, is not repeated in the present embodiment.
Step S303：The current value is characterized based on first judging result and meets overcurrent condition of presetting, described in adjustment
Electronic equipment operating parameter, so that until the current value returns back to satisfaction and presets electronic equipment maintenance when normal condition
Open state.
Wherein, which specifically includes the operating parameter for adjusting the electronic equipment.
In specific implementation, the operating parameter of the electronic equipment is adjusted, so that the electronic equipment operating status respective change,
Even if the overcurrent of the system, remain able to maintain booting operation.
Certainly, in specific implementation, electronic equipment is since it runs a period of time in over-current state, and in order to ensure electricity
The cell voltage of sub- equipment will not extremely decay, then also need to generate prompting message, to remind user to charge in time.
It should be noted that first pre- due to causing the cell voltage to be reduced within a preset period of time from the first voltage value
If threshold value is due to pulse current, since the characteristics of pulse current, is that the duration is shorter (such as a few minutes), so, which sets
Operating parameter need to only execute in the duration of the pulse current after standby adjustment.
To sum up, in a kind of method of overcurrent protection provided in this embodiment, the triggering stabilization mechanism, to prevent the electricity
Sub- equipment automatic shutdown, specifically includes：The electronic equipment operating parameter is adjusted, so that until the current value returns back to completely
Foot presets electronic equipment when normal condition and maintains open state.Using this method, join by adjusting the operation of electronic equipment
Several method, so that the electronic equipment operating status respective change remains able to maintain even if the overcurrent of the system
Booting operation, ensure that the experience of user.
As shown in Figure 4, it is a kind of flow chart of the embodiment of the method 4 of overcurrent protection provided by the present application, this method packet
Include following steps：
Step S401：Detect the cell voltage of the electronic equipment and the current value of system；
Step S402：Based on the cell voltage the first default threshold is reduced to from the first voltage value within a preset period of time
Value, judges whether the current value meets default overcurrent condition, obtains the first judging result；
Wherein, step S401-402 is consistent with the step S301-302 in embodiment 3, is not repeated in the present embodiment.
Step S403：The current value is characterized based on first judging result and meets default overcurrent condition, by the electricity
The shutdown voltage of sub- equipment is reduced to third predetermined threshold value from the first predetermined threshold value, so that until the current value returns back to completely
Foot presets electronic equipment when normal condition and maintains open state.
Wherein, internal resistance of the third predetermined threshold value based on battery, the system current value and the described first default threshold
Value is related.
Wherein, when occurring pulse current in the system of the electronic equipment, (i.e. overcurrent, current value, which meets, presets overcurrent item
Part) when, since the peak value of pulse current is generally higher, and the duration is longer, then the internal resistance of battery can be caused to get voltage, gone out
Existing internal resistance of cell pressure drop is larger, so that the output voltage of battery reduces.
And it is the global voltage balance for ensureing the battery, the shutdown of the electronic equipment is adjusted in conjunction with the internal resistance pressure drop of the battery
Voltage.
In specific implementation, according to the internal resistance of cell, System current and the first predetermined threshold value can be calculated this
Three predetermined threshold values.Wherein, U1Indicate the first predetermined threshold value, U2Indicate third predetermined threshold value, R0Indicate that the internal resistance of cell, I indicate system
Current value,
According to partial pressure principle it is found that U2=U1-IR0
That is, the third predetermined threshold value is the difference of the first predetermined threshold value and internal resistance of cell pressure drop.
To sum up, in a kind of method of overcurrent protection provided in this embodiment, the adjustment electronic equipment operating parameter,
It specifically includes：It is reduced to third predetermined threshold value, the third pre- from the first predetermined threshold value the shutdown voltage of the electronic equipment
If internal resistance of the threshold value based on battery, the current value of the system are related to first predetermined threshold value.Using this method, pass through by
The shutdown voltage of the electronic equipment is adjusted to a lower threshold value so that when occurring pulse current in systems, which sets
It is standby to remain able to run, without there is error cut-off machine phenomenon.
As shown in Figure 5, it is a kind of flow chart of the embodiment of the method 5 of overcurrent protection provided by the present application, this method packet
Include following steps：
Step S501：Detect the cell voltage of the electronic equipment and the current value of system；
Step S502：Based on the cell voltage the first default threshold is reduced to from the first voltage value within a preset period of time
Value, judges whether the current value meets default overcurrent condition, obtains the first judging result；
Step S503：The current value is characterized based on first judging result and meets default overcurrent condition, by the electricity
The shutdown voltage of sub- equipment is reduced to third predetermined threshold value from the first predetermined threshold value, so that until the current value returns back to completely
Foot presets electronic equipment when normal condition and maintains open state；
Wherein, step S501-503 is consistent with the step S401-403 in embodiment 4, is not repeated in the present embodiment.
Step S504：The current value return back to satisfaction preset normal condition when, by the shutdown voltage of the electronic equipment
It is adjusted to the first predetermined threshold value from third predetermined threshold value.
In specific implementation, due to causing the cell voltage to be reduced to first to preset from the first voltage value within a preset period of time
Threshold value be due to pulse current, due to the characteristics of pulse current be the duration for a period of time, so, the current value of the system is
Can be back to normal over time, i.e., the current value, which replys to meet, presets normal condition, at this point, to ensure that the electronics is set
It is standby to shut down when electricity is relatively low, to prevent cell voltage from extremely decaying, need shutdown voltage adjust back this first in advance
If threshold value.
To sum up, in a kind of method of overcurrent protection provided in this embodiment, the adjustment electronic equipment operating parameter
Later, further include：The current value returns back to satisfaction when presetting normal condition, by the shutdown voltage of the electronic equipment from third
Predetermined threshold value is adjusted to the first predetermined threshold value.Using this method, when the current value of system is back to normal, by the pass of electronic equipment
Electromechanics pressure adjusts back higher first predetermined threshold value, ensures that the electronic equipment can shut down when electricity is relatively low, prevents anti-
The problem of only cell voltage is extremely decayed.
It is as shown in FIG. 6, it is a kind of flow chart of the embodiment of the method 6 of overcurrent protection provided by the present application, this method packet
Include following steps：
Step S601：Detect the cell voltage of the electronic equipment and the current value of system；
Step S602：Based on the cell voltage the first default threshold is reduced to from the first voltage value within a preset period of time
Value, judges whether the current value meets default overcurrent condition, obtains the first judging result；
Wherein, step S601-602 is consistent with the step S301-302 in embodiment 3, is not repeated in the present embodiment.
Step S603：The current value, which is characterized, based on first judging result meets overcurrent condition of presetting, acquisition first
Application program；
Wherein, the first application program operation causes the current value of the system to be increased to meet default overcurrent condition.
In specific implementation, when application program launching in the electronic equipment, electric current has corresponding variation.
Wherein, when a certain application program starts to start operation, the current value of the system is increased to it and meets default overcurrent
Condition can then determine that the application program is the first application program.
In specific implementation, the program of cell voltage and current value is detected in the electronic equipment, it can also be to the application of startup
Program and corresponding current value be detected or the electronic equipment in have other programs and the detection cell voltage and current value
Program be used cooperatively, to realize that other programs are detected the application program of the startup.
Step S604：Stop the operation of first application program；
Wherein, since first application program causes the current value of the system to be increased to overcurrent, then correspondingly, stop this
The operation of one application program can make the System current restore state.
In specific implementation, the operation of the stopping first application program may include the mode of shutdown or pause.
Step S605：Prompt message is generated, the prompt message applies journey for prompting user to continue to run with described first
Sequence can lead to system closedown.
Wherein, generally start depending on the user's operation due to first application program, correspondingly, also needing to user
It is prompted.
Specifically, prompted in a manner of generating prompt message, prompt message prompt user continue to run with this first
Application program can lead to system closedown, need to charge in time.
In specific implementation, which may be used the mode that dialog box is popped up in screen, may include in the dialog box with
It turns off the first application program and continues the respective selection of the first application program, user can independently be selected.
In specific implementation, first application program can be turned off according to the operation of user feedback, so that the current value returns
It is multiple extremely to meet default normal condition (i.e. reset condition), until at this point, the electronic equipment is able to maintain that open state.
To sum up, in a kind of method of overcurrent protection provided in this embodiment, the adjustment electronic equipment operating parameter,
It specifically includes：The first application program is obtained, the first application program operation causes the current value of the system to be increased to meet
Default overcurrent condition；Stop the operation of first application program；Prompt message is generated, the prompt message is for prompting user
System closedown can be led to by continuing to run with first application program.Using this method, pass through the current value liter for stopping leading to system
The operation for up to meeting the first application program for presetting overcurrent condition achievees the purpose that reduce System current, prevent anti-
The problem of only cell voltage is extremely decayed.
Corresponding with a kind of above-mentioned embodiment of the method for overcurrent protection provided by the present application, present invention also provides applications
The electronic equipment embodiment of the method for the overcurrent protection.
The structural schematic diagram of the electronic equipment embodiment 1 as shown in Figure 7 for being a kind of overcurrent protection provided by the present application, should
Electronic equipment includes with lower structure：Battery 701, system 702 and processor 703；
Wherein, which provides electricity for electronic equipment；
Wherein, which is to consume the electricity of the battery for the general designation of the composed structure in electronic equipment；
Wherein, the processor 703, the current value of cell voltage and system for detecting the electronic equipment；It is based on
The cell voltage is reduced to the first predetermined threshold value from the first voltage value within a preset period of time, judges whether the current value is full
The default overcurrent condition of foot, obtains the first judging result；The current value satisfaction is characterized based on first judging result to preset
Stream condition triggers stabilization mechanism, to prevent the electronic equipment automatic shutdown.
In specific implementation, which also provides electricity for the processor, which can be as a group of the system
At part.
In specific implementation, which may be used the structure with data-handling capacity, such as CPU (central
Processing unit, central processing unit).
Preferably, processor triggering stabilization mechanism is specifically included with preventing the electronic equipment automatic shutdown：
The electronic equipment operating parameter is adjusted, so that until the current value returns back to satisfaction and presets normal condition
When, the electronic equipment maintains open state.
Preferably, processor adjusts the electronic equipment operating parameter, specifically includes：
It is reduced to third predetermined threshold value, the third default from the first predetermined threshold value the shutdown voltage of the electronic equipment
Internal resistance of the threshold value based on battery, the current value of the system are related to first predetermined threshold value.
Preferably, processor adjusts the electronic equipment operating parameter, specifically includes：
The first application program is obtained, the first application program operation causes the current value of the system to be increased to meet in advance
If overcurrent condition；
Stop the operation of first application program；
Prompt message is generated, the prompt message is for prompting user to continue to run with first application program and can cause
System shutdown.
To sum up, the electronic equipment of a kind of overcurrent protection provided in this embodiment, including：Battery；System；Processor is used for
Detect the cell voltage of the electronic equipment and the current value of system；Based on the cell voltage within a preset period of time from
One voltage value is reduced to the first predetermined threshold value, judges whether the current value meets default overcurrent condition, obtains the first judgement knot
Fruit；The current value is characterized based on first judging result and meets overcurrent condition of presetting, and triggering stabilization mechanism is described to prevent
Electronic equipment automatic shutdown.The system is determined after the cell voltage is reduced rapidly to the first predetermined threshold value using the program
When current value is overcurrent, then stabilization mechanism is triggered, prevented because when the pulse current as overcurrent continues one section
Between lead to the automatic shutdown of equipment, ensure that battery when remaining capacity is more will not automatic shutdown, improve the body of user
It tests.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.The device provided for embodiment
For, since it is corresponding with the method that embodiment provides, so description is fairly simple, related place is said referring to method part
It is bright.
Above description to the embodiment provided, enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principle provided in this article and features of novelty phase one
The widest range caused.
Claims (10)
1. a kind of method of overcurrent protection, which is characterized in that the method is applied to electronic equipment, the method includes：
Detect the cell voltage of the electronic equipment and the current value of system；
It is reduced to the first predetermined threshold value from the first voltage value within a preset period of time based on the cell voltage, judges the electric current
Whether value meets default overcurrent condition, obtains the first judging result；
The current value, which is characterized, based on first judging result meets overcurrent condition of presetting, triggering stabilization mechanism, to prevent
State electronic equipment automatic shutdown.
2. according to the method described in claim 1, it is characterized in that, whether the cell voltage is within a preset period of time from first
Voltage value is reduced to after the first predetermined threshold value, it is described judge whether the current value meets default overcurrent condition before, also wrap
It includes：
Judge whether the first voltage value of the cell voltage is more than the second predetermined threshold value, obtains the second judging result；
The first voltage value that cell voltage is characterized based on second judging result is more than the second predetermined threshold value, executes step and judges
Whether the current value meets default overcurrent condition；
The first voltage value that cell voltage is characterized based on second judging result is not more than the second predetermined threshold value, controls the electricity
Sub- equipment enters shutdown process.
3. according to the method described in claim 1, it is characterized in that, the triggering stabilization mechanism, to prevent the electronic equipment
Automatic shutdown specifically includes：
The electronic equipment operating parameter is adjusted, so that described in being returned back to when satisfaction presets normal condition up to the current value
Electronic equipment maintains open state.
4. according to the method described in claim 3, it is characterized in that, the adjustment electronic equipment operating parameter, specific to wrap
It includes：
The shutdown voltage of the electronic equipment is reduced to third predetermined threshold value, the third predetermined threshold value from the first predetermined threshold value
The current value of internal resistance, the system based on battery is related to first predetermined threshold value.
5. according to the method described in claim 4, it is characterized in that, after the adjustment electronic equipment operating parameter, go back
Including：
The current value returns back to satisfaction when presetting normal condition, by the shutdown voltage of the electronic equipment from third predetermined threshold value
It is adjusted to the first predetermined threshold value.
6. according to the method described in claim 3, it is characterized in that, the adjustment electronic equipment operating parameter, specific to wrap
It includes：
Obtain the first application program, the first application program operation causes the current value of the system to be increased to meet and preset
Stream condition；
Stop the operation of first application program；
Prompt message is generated, the prompt message can cause system to be closed for prompting user to continue to run with first application program
Machine.
7. a kind of electronic equipment, which is characterized in that including：
Battery；
System；
Processor, the current value of cell voltage and system for detecting the electronic equipment；Existed based on the cell voltage
It is reduced to the first predetermined threshold value from the first voltage value in preset time period, judges whether the current value meets default overcurrent item
Part obtains the first judging result；The current value is characterized based on first judging result and meets overcurrent condition of presetting, and triggering is anti-
Mechanism is trembled, to prevent the electronic equipment automatic shutdown.
8. electronic equipment according to claim 7, which is characterized in that processor triggers stabilization mechanism, to prevent the electricity
Sub- equipment automatic shutdown, specifically includes：
The electronic equipment operating parameter is adjusted, so that when the current value returns back to satisfaction and presets normal condition, institute
It states electronic equipment and maintains open state.
9. electronic equipment according to claim 8, which is characterized in that processor adjusts the electronic equipment operating parameter,
It specifically includes：
The shutdown voltage of the electronic equipment is reduced to third predetermined threshold value, the third predetermined threshold value from the first predetermined threshold value
The current value of internal resistance, the system based on battery is related to first predetermined threshold value.
10. electronic equipment according to claim 8, which is characterized in that processor adjusts the electronic equipment operating parameter,
It specifically includes：
Obtain the first application program, the first application program operation causes the current value of the system to be increased to meet and preset
Stream condition；
Stop the operation of first application program；
Prompt message is generated, the prompt message can cause system to be closed for prompting user to continue to run with first application program
Machine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291462.1A CN108539721B (en) | 2018-03-30 | 2018-03-30 | Overcurrent protection method and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291462.1A CN108539721B (en) | 2018-03-30 | 2018-03-30 | Overcurrent protection method and electronic equipment |
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| CN108539721B CN108539721B (en) | 2020-06-23 |
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| WO2017140383A1 (en) * | 2016-02-19 | 2017-08-24 | Toyota Motor Europe | Systems and methods for battery micro-short estimation |
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|---|---|---|---|---|
| CN104584371A (en) * | 2013-05-17 | 2015-04-29 | 三洋电机株式会社 | Battery pack and method for controlling discharge of secondary cell |
| CN104423275A (en) * | 2013-08-19 | 2015-03-18 | 联想移动通信科技有限公司 | System voltage control device, method and terminal |
| WO2017140383A1 (en) * | 2016-02-19 | 2017-08-24 | Toyota Motor Europe | Systems and methods for battery micro-short estimation |
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| CN108539721B (en) | 2020-06-23 |
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