CN106712219A

CN106712219A - Charging protection method and device

Info

Publication number: CN106712219A
Application number: CN201710128536.5A
Authority: CN
Inventors: 范杰; 李志武; 杨大伟
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2017-03-06
Filing date: 2017-03-06
Publication date: 2017-05-24

Abstract

The invention relates to a charging protection method and device, and the method comprises the steps: obtaining a first voltage outputted by a charger, wherein first voltage is a voltage of a charging line interface of the charger when the charger does not output a charging current; receiving a first charging current outputted by the charger, wherein the first charging current is less than a preset current threshold value; obtaining a second voltage of the charging line interface of electronic equipment when the charger outputs the first charging current; obtaining the impedance of a charging line according to the first voltage, the second voltage and the first current; and carrying out the corresponding charging operation according to the impedance of the charging line. According to the invention, the impedance of the charging line can be detected before the releasing of a charging function, and the corresponding charging operations are performed according to the impedance, wherein the charging operations comprise the adjustment of the size of the charging current and the charging prompt of a user. The method can solve a problem of damages, caused by the abnormal impedance caused by the potential abnormality of the charging line, to a cellphone and a battery.

Description

Charge protection method and device

Technical field

This disclosure relates to mobile terminal application field, more particularly to a kind of charge protection method and device.

Background technology

With the popularization of big screen intelligent mobile terminal, user constantly increases to the use time and power consumption of mobile terminal Plus, the requirement of the frequency and charging quality that are charged to mobile terminal also more comes higher.Straight to charge because its efficiency high, charge electricity The characteristics of flowing big, heating is small, has become top-priority scheme when each manufacturer terminal is designed terminal charge.

The content of the invention

To overcome problem present in correlation technique, the disclosure to provide a kind of charge protection method and device.

According to the first aspect of the embodiment of the present disclosure, there is provided a kind of charge protection method, electronic equipment, the side are applied to Method includes：

The first voltage of charger output is obtained, the first voltage is not described in when the charger exports charging current The voltage of the charging wire interface of charger；

The first charging current of the charger output is obtained, first charging current is less than default current threshold；

When obtaining charger output first charging current, the second of the charging wire interface of the electronic equipment Voltage；

According to the first voltage, the second voltage and first charging current, the impedance of the charging wire is obtained；

Impedance according to the charging wire carries out corresponding charging operations.

Optionally, the impedance according to the charging wire carries out corresponding charging operations, including：

When the impedance of the charging wire is in default impedance ranges, the charger is controlled according to specified charging electricity Stream size exports the second charging current.

When the impedance of the charging wire is more than the higher limit of default impedance ranges, the charger is controlled to stop output Charging current；

Export the prompt message for pointing out the charging wire abnormal.

When the impedance of the charging wire is less than the lower limit of default impedance ranges, the charger is controlled to export electricity Pressure is adjusted to tertiary voltage from the first voltage, and the tertiary voltage is the battery rated voltage of the electronic equipment, and presses The output voltage of the charger is adjusted step by step from the tertiary voltage according to default unit voltage, until the charger is defeated The charging current for going out reaches default maximum charging current.

Optionally, methods described also includes：

When detecting that the charger accesses the electronic equipment by the charging wire, charged with the charger Protocol handshake；

After carrying out charge protocol with the charger and shaking hands successfully, according to shaking hands, successful charge protocol judges whether to open Impedance,motional detects function；

When it is determined that starting the impedance detection function, the impedance detection function is activated；

After the impedance detection function is activated, the first voltage for obtaining charger output is performed.

Optionally, the prompt message exported for pointing out the charging wire abnormal, including it is following at least one：

Prompt message described in display screen display in the electronic equipment, the content of the prompt message include word, Any one in figure；

Export the prompt tone for pointing out the charging wire abnormal；

Shake the electronic equipment；

The indicator lamp on the charger is controlled to be indicated according to default indicating mode.

According to the second aspect of the embodiment of the present disclosure, there is provided a kind of charge protection method, charger, methods described are applied to Including：

Output first voltage, the first voltage is the charging that the charger does not export charger during charging current Voltage at line interface；

The first charging current is exported, first charging current is less than default current threshold；

When the impedance of the charging wire is in default impedance ranges, according to specified charging current output second Charging current.

When the impedance of the charging wire is more than the higher limit of default impedance ranges, stop output charging current；

Export the prompt message for pointing out the charging wire abnormal.

When the impedance of the charging wire is less than the lower limit of default impedance ranges, voltage is sent to the electronic equipment Request is obtained, the voltage obtains request for obtaining tertiary voltage, and the tertiary voltage is the battery volume of the electronic equipment Determine voltage；

Receive the tertiary voltage that the electronic equipment sends；

Output voltage is adjusted to tertiary voltage from the first voltage；

Judge the second charging current exported when output voltage is adjusted into the tertiary voltage whether reach it is default most Big charging current；

When second charging current is less than the maximum charging current, according to default unit voltage from the described 3rd Voltage plays the output voltage for adjusting the charger step by step, until the charging current of charger output reaches default maximum Charging current；

When second charging current reaches the maximum charging current, output second charging current is kept.

Optionally, methods described also includes：

When detecting that the charger accesses the electronic equipment by the charging wire, filled with the electronic equipment Electric protocol handshake；

After carrying out charge protocol with the electronic equipment and shaking hands successfully, according to shaking hands, successful charge protocol judges whether Start impedance detection function；

After the impedance detection function is activated, the first voltage of the output is performed.

According to the third aspect of the embodiment of the present disclosure, there is provided a kind of charge protection device, electronic equipment, the dress are applied to Put including：

First voltage acquisition module, is configured as obtaining the first voltage of charger output, and the first voltage is described Charger does not export the voltage of the charging wire interface of charger during charging current；

Electric current acquisition module, is configured as receiving the first charging current of the charger output, first charging current Less than default current threshold；

The first voltage acquisition module, when being additionally configured to obtain charger output first charging current, The second voltage of the charging wire interface of the electronic equipment；

First impedance acquisition module, is configured as being charged according to the first voltage, the second voltage and described first Electric current, obtains the impedance of the charging wire；

First charge control module, is configured as carrying out corresponding charging operations according to the impedance of the charging wire.

Optionally, first charge control module, is configured as：

Export the prompt message for pointing out the charging wire abnormal.

Optionally, first charge control module, is configured as：

Optionally, described device also includes：

First protocol handshake module, is configured as detecting that the charger accesses the electronics and sets by the charging wire When standby, carry out charge protocol with the charger and shake hands；

First detection starting module, is configured as being carried out after charge protocol shakes hands successfully with the charger, according to holding The successful charge protocol of hand judges whether to start impedance detection function；

First detection active module, when being configured as determining to start the impedance detection function, activates the impedance inspection Brake；

First output performing module, is configured as after the impedance detection function is activated, and performs the acquisition charger The first voltage of output.

Export the prompt tone for pointing out the charging wire abnormal；

Shake the electronic equipment；

According to the fourth aspect of the embodiment of the present disclosure, there is provided a kind of charge protection device, charger, described device are applied to Including：

Voltage output module, is configured as exporting first voltage, and the first voltage does not export charging for the charger The voltage of the charging wire interface of charger during electric current；

Current output module, is configured as exporting the first charging current, and first charging current is less than default electric current Threshold value；

Second voltage acquisition module, when being configured as obtaining charger output first charging current, the electricity The second voltage of the charging wire interface of sub- equipment；

Second impedance detection module, is configured as being charged according to the first voltage, the second voltage and described first Electric current, obtains the impedance of the charging wire；

Second charge control module, is configured as carrying out corresponding charging operations according to the impedance of the charging wire.

Optionally, second charge control module, is configured as：

Export the prompt message for pointing out the charging wire abnormal.

Optionally, second charge control module, is configured as：

Receive the tertiary voltage that the electronic equipment sends；

Output voltage is adjusted to tertiary voltage from the first voltage；

Optionally, described device also includes：

Second protocol handshake module, is configured as detecting that the charger accesses the electronics and sets by the charging wire When standby, carry out charge protocol with the electronic equipment and shake hands；

Second detection starting module, is configured as being carried out after charge protocol shakes hands successfully with the electronic equipment, according to Successful charge protocol of shaking hands judges whether to start impedance detection function；

Second detection active module, when being configured as determining to start the impedance detection function, activates the impedance inspection Brake；

Second output performing module, is configured as after the impedance detection function is activated, and performs the first of the output Voltage.

The 5th aspect according to the embodiment of the present disclosure, there is provided a kind of charge protection device, described device includes：

Processor；

Memory for storing processor-executable instruction；

Wherein, the processor is configured as：The first voltage of charger output is obtained, the first voltage is filled for described Electrical equipment does not export the voltage of the charging wire interface of charger during charging current；The charger output first is received to charge Electric current, first charging current is less than default current threshold；When obtaining charger output first charging current, The second voltage of the charging wire interface of the electronic equipment；According to the first voltage, the second voltage and described first Charging current, obtains the impedance of the charging wire；Impedance according to the charging wire carries out corresponding charging operations.

The 6th aspect according to the embodiment of the present disclosure, there is provided a kind of charge protection device, described device includes：

Processor；

Memory for storing processor-executable instruction；

Wherein, the processor is configured as：Output first voltage, the first voltage is filled for the charger is not exported The voltage of the charging wire interface of charger during electric current；The first charging current is exported, first charging current is less than Default current threshold；When obtaining charger output first charging current, the charging line interface of the electronic equipment The second voltage at place；According to the first voltage, the second voltage and first charging current, the charging wire is obtained Impedance；Impedance according to the charging wire carries out corresponding charging operations.

The 7th aspect according to the embodiment of the present disclosure, there is provided a kind of non-transitorycomputer readable storage medium, when described Instruction in storage medium by mobile terminal computing device when so that mobile terminal is able to carry out a kind of charge protection side Method, methods described includes：The first voltage of charger output is obtained, the first voltage does not export charging electricity for the charger The voltage of the charging wire interface of charger during stream；Receive the charger and export the first charging current, described first fills Electric current is less than default current threshold；When obtaining charger output first charging current, the electronic equipment The second voltage of charging wire interface；According to the first voltage, the second voltage and first charging current, institute is obtained State the impedance of charging wire；Impedance according to the charging wire carries out corresponding charging operations.

According to the eighth aspect of the embodiment of the present disclosure, there is provided a kind of non-transitorycomputer readable storage medium, when described Instruction in storage medium by mobile terminal computing device when so that mobile terminal is able to carry out a kind of charge protection side Method, methods described includes：Output first voltage, the first voltage does not export charging during charging current for the charger The voltage of the charging wire interface of device；The first charging current is exported, first charging current is less than default current threshold；Obtain When taking charger output first charging current, the second voltage of the charging wire interface of the electronic equipment；According to The first voltage, the second voltage and first charging current, obtain the impedance of the charging wire；According to the charging The impedance of line carries out corresponding charging operations.

The technical scheme provided by this disclosed embodiment can include the following benefits：

Charging line impedence can be detected before charge function is discharged, and the corresponding behaviour that charges is carried out according to the impedance Make, including adjust the size of charging current and charge reminder is carried out to user, potential charging wire can be avoided to cause extremely The extremely caused mobile phone of impedance and cell damage problem.

It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not The disclosure can be limited.

Brief description of the drawings

Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the disclosure Example, and it is used to explain the principle of the disclosure together with specification.

Fig. 1 is a kind of flow chart of the charge protection method according to an exemplary embodiment.

Fig. 2 is a kind of flow chart of the charge protection method according to another exemplary embodiment.

Fig. 3 is the flow chart of another charge protection method according to an exemplary embodiment.

Fig. 4 is a kind of flow chart of the charging operations according to embodiment illustrated in fig. 3.

Fig. 5 is a kind of flow chart of the charge protection method according to another exemplary embodiment.

Fig. 6 is a kind of schematic diagram of the charge protection method according to an exemplary embodiment.

Fig. 7 is a kind of block diagram of the charge protection device according to an exemplary embodiment.

Fig. 8 is a kind of block diagram of the charge protection device according to another exemplary embodiment.

Fig. 9 is the block diagram of another charge protection device according to an exemplary embodiment.

Figure 10 is a kind of block diagram of the charge protection device according to another exemplary embodiment.

Figure 11 is a kind of block diagram of the charge protection device according to an exemplary embodiment.

Specific embodiment

Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment Described in implementation method do not represent all implementation methods consistent with the disclosure.Conversely, they be only with it is such as appended The example of the consistent apparatus and method of some aspects described in detail in claims, the disclosure.

Before the charge protection method of disclosure offer is provided, application scenarios involved by the disclosure are situated between first Continue, the application scenarios can include an electronic equipment and a charger.The electronic equipment can charge for support is straight, comprising Power management chip and wired or wireless signal transfer mobile terminal device can be carried out with charging equipment, for example can be with It is smart mobile phone, panel computer, intelligent television, intelligent watch, PDA (Personal Digital Assistant, individual digital Assistant), pocket computer etc..The charger can be that the support matched with above-mentioned mobile terminal device is directly charged, comprising electricity Source control chip and wired or wireless signal transfer charging equipment can be carried out with mobile terminal device.

Fig. 1 is a kind of flow chart of the charge protection method according to an exemplary embodiment, as shown in figure 1, this fills Electric protection method can apply to the electronic equipment described in above-mentioned application scenarios, and the method may comprise steps of.

In a step 101, the first voltage of charger output is obtained, the first voltage does not export charging electricity for the charger The voltage of the charging wire interface of charger during stream.

Illustratively, the first voltage can for charger in the case where charging current is not exported, a fixation of output Voltage V1.The usual first voltage is at least 4.4V, and can be needed to be configured according to practical application.Wherein, in output During the first voltage, charger can export a less electric current in which cannot avoid, such as 3mA, because the electric current is relative to filling Electric current is minimum, follow-up impedance computation is not influenceed, it is believed that charger does not export charging current.And because charger is not defeated Go out charging current, the magnitude of voltage of the interface at electronic equipment end also V1.The electronic equipment can be by Charge Management core Piece records magnitude of voltage V1.

In a step 102, the first charging current of charger output is obtained, first charging current is less than default electricity Stream threshold value.

In step 103, when obtaining the charger and exporting first charging current, the charging wire interface of the electronic equipment Second voltage.

At step 104, according to the first voltage, the second voltage and first charging current, the charging wire is obtained Impedance.

Illustratively, the current value of first charging current can be limited in 100mA.The power management core of the electronic equipment The current value is read in sector-meeting, is designated as I.When charger exports first charging current by charging wire, produce pressure drop, obtain this Two voltages, the i.e. voltage at charging wire two ends is respectively first voltage and second voltage.The charging management chip reads second electricity Pressure, is designated as V2.Can by front and rear the magnitude of voltage V1 and V2 for recording twice, and the first charging current current value I, calculate Go out the impedance R of the charging wire.Wherein, magnitude of voltage V1, V2 and current value I can be stored in filling inside power management chip Electric protection and voltage acquisition module, and according to Ohm's law：Resistance=voltage/current, is calculated impedance R=(V1-V2)/I.

In step 105, the impedance according to the charging wire carries out corresponding charging operations.

Illustratively, the impedance ranges that the impedance pre-sets with the electronic equipment can be compared, when the charging wire Impedance in default impedance ranges when, then the electronic equipment can by signal inform the charger decontrol charging current limit System, corresponding step 105 can include：The charger is controlled to be charged according to specified charging current output second electric Stream.Wherein, second charging current can be the charging current that the electronic apparatus system is set, such as in being charge protocol Pre-specified charging current.

When the charging wire impedance more than default impedance ranges higher limit when, the electronic equipment may determine that because Impedance increase caused by charging wire connection is insufficient, corresponding step 105 can include：The charger is controlled to stop output Charging current, and export the prompt message for pointing out the charging wire abnormal.

Wherein, the output is used for the prompt message for pointing out the charging wire abnormal, can include it is following at least one：

In the display screen display of the electronic equipment prompt message, the content of the prompt message is including in word, figure Any one；

Export the prompt tone for pointing out the charging wire abnormal；

Shake the electronic equipment；

When the impedance of the charging wire is less than the lower limit of default impedance ranges, the step 105 can include：Control should Charger adjusts to tertiary voltage output voltage from the first voltage, and the tertiary voltage is the specified electricity of battery of the electronic equipment Pressure, and adjust the output voltage of the charger step by step from the tertiary voltage according to default unit voltage, until the charger The charging current of output reaches default maximum charging current.

In sum, the charge protection method that the embodiment of the present disclosure is provided, obtains the first voltage of charger output first, The first voltage is the voltage of the charging wire interface of the charger when charger does not export charging current；Next obtains this and fills Electrical equipment exports the first charging current, and first charging current is less than default current threshold；Obtaining charger output again should During the first charging current, the second voltage of the charging wire interface of the electronic equipment；Then according to the first voltage, second electricity Pressure and first charging current, obtain the impedance of the charging wire；Impedance finally according to the charging wire carries out the corresponding behaviour that charges Make.Charging line impedence can be detected before charge function is discharged, and corresponding charging operations are carried out according to the impedance, wrapped Include the size of adjustment charging current and charge reminder is carried out to user, the impedance that potential charging wire can be avoided to cause extremely The problem of abnormal caused mobile phone and cell damage.

Fig. 2 is a kind of flow chart of the charge protection method according to another exemplary embodiment, as shown in Fig. 2 should Charge protection method can also be comprised the following steps.

In step 106, when detecting that the charger accesses the electronic equipment by the charging wire, carried out with the charger Charge protocol is shaken hands.

Illustratively, the charge protocol can include BC1.2 (Battery Charging Specification 1.2, electricity Pond Charging Specification 1.2), QC2.0 (Quick Charge 2.0, fast charge protocol 2.0), QC3.0 and PD (Power Delivery, energy pays agreement) etc..If any of which charge protocol is shaken hands successfully, the electronic equipment is entered into and filled The state of electricity.If without a kind of success of agreement, cannot charge, the electronic equipment not may determine that the hardware being likely to occur not The problem matched somebody with somebody.

In step 107, after carrying out charge protocol with the charger and shaking hands successfully, according to successful charge protocol of shaking hands Judge whether to start impedance detection function.

Illustratively, because the charging current of BC1.2 or QC agreements is generally not over 3A, and the charging current of PD agreements 3A can be more than, so after carrying out charge protocol with the charger and shaking hands successfully, the type of the charge protocol can be detected.If The charge protocol does not activate the function of detection impedance line then to be BC1.2 or QC agreements.If PD agreements, then the electronics Equipment can inform the function of charger activation detection impedance line.

In step 108, when it is determined that starting the impedance detection function, the impedance detection function is activated.

In step 109, after the impedance detection function is activated, the step 101 is performed.

Fig. 3 is the flow chart of another charge protection method according to an exemplary embodiment, as shown in figure 3, should Charge protection method can apply to the charger described in above-mentioned application scenarios, and the method may comprise steps of.

In step 201, first voltage is exported, the first voltage is the charger when charger does not export charging current Charging wire interface voltage.

In step 202., the first charging current is exported, first charging current is less than default current threshold.

In step 203, when obtaining the charger and exporting first charging current, the charging wire interface of the electronic equipment Second voltage.

In step 204, according to the first voltage, the second voltage and first charging current, the charging wire is obtained Impedance.

Illustratively, the first voltage and the first charging current are due to being charger output, therefore the charger is easy The numerical value of the first voltage and the first charging current is obtained, the acquisition of the second voltage can be by the electricity of electronic equipment internal Source control chip is obtained, and gives the charger by the electronic equipment.In addition, according to the first voltage, second voltage and First charging current is identical with the method shown in foregoing step 104 to calculate the method for the impedance of charging wire, repeats no more.

In step 205, the impedance according to the charging wire carries out corresponding charging operations.

Illustratively, the impedance according to the charging wire carries out corresponding charging operations with the charging operations phase shown in step 105 Together, the impedance ranges that the impedance pre-sets with the electronic equipment can be compared, when the impedance of the charging wire is default Impedance ranges in when, charger decontrols charging current limitation, and the step 205 of response can include：According to specified charging Size of current exports the second charging current.

When the impedance of the charging wire is more than the higher limit of default impedance ranges, the step 205 can include：Stop defeated Go out charging current, and export the prompt message for pointing out the charging wire abnormal.When the impedance of the charging wire is less than default resistance During the lower limit of anti-scope, as shown in figure 4, Fig. 4 is a kind of flow chart of the charging operations according to embodiment illustrated in fig. 3, The step 205 can also be comprised the following steps.

In step 2051, send voltage to the electronic equipment and obtain request, the voltage obtains request for obtaining the 3rd Voltage, the tertiary voltage is the battery rated voltage of the electronic equipment.

In step 2052, the tertiary voltage of electronic equipment transmission is received.

In step 2053, output voltage is adjusted to tertiary voltage from the first voltage.

In step 2054, judge whether the second charging current exported when output voltage is adjusted into the tertiary voltage reaches To default maximum charging current.

In step 2055, when second charging current is less than the maximum charging current, according to default unit voltage Adjust the output voltage of the charger step by step from the tertiary voltage, until the charger output charging current reach it is default Maximum charging current.

In step 2056, when second charging current reaches the maximum charging current, keep exporting second charging Electric current.

So can ensure under secure conditions, to maximize charging current.

Fig. 5 is a kind of flow chart of the charge protection method according to another exemplary embodiment, as shown in figure 5, Fig. 3 Shown in charge protection method can also comprise the following steps.

In step 206, when detecting that the charger accesses the electronic equipment by the charging wire, enter with the electronic equipment Row charge protocol is shaken hands.

In step 207, after carrying out charge protocol with the electronic equipment and shaking hands successfully, according to association of successfully charging of shaking hands View judges whether to start impedance detection function.

In a step 208, when it is determined that starting the impedance detection function, the impedance detection function is activated.

In step 209, after the impedance detection function is activated, the step 201 is performed.

Illustratively, Fig. 6 is the schematic diagram of the charge protection method shown in an exemplary embodiment, referring to Fig. 6, charger 601 charging wires 602 by matching are connected with the power management chip 603 in electronic equipment, the power management chip 603 and electric The battery 604 of sub- equipment is connected, and interface 605 is the charging wire connecting interface at charger end, and interface 606 fills for electronic equipment end Electric wire connecting interface.Wherein, power management chip includes the module of charge protection and voltage acquisition, and switch control mould The module of block, the charge protection and voltage acquisition is used to judge whether to activate impedance monitoring function, and activation impedance monitoring work( Voltage after energy at acquisition interface 606 simultaneously calculates the impedance of charging wire with this, and controls follow-up charging according to the impedance Operation, switch control module is used for the opening and closing of controlling switch B and C, and filling for battery is supplied to cut off or to connect Electric current.Charge protection method provided by the present invention can be realized as follows：

When electronic equipment detects the charger 601 by the charging wire 602 access electronic equipment, with the charger 601 carry out charge protocol shakes hands.After carrying out charge protocol with the charger 601 and shaking hands successfully, successfully charge according to being shaken hands Agreement judges whether to activate impedance detection function.When it is determined that activating the impedance detection function, the electronic equipment is accused by signal Know that the charger 601 activates the impedance detection function, the charger 601 exports one in the case where charging voltage is not exported admittedly Determine voltage V1.At this moment, because the magnitude of voltage of interface 605 and interface 606 is all V1, the power management chip 603 can be obtained simultaneously Storage V1.

After the power management chip 603 gets V1, the electronic equipment is informed that the charger 601 output one is less and is filled Electric current, the charger 601 can export the charging current I of 100Am, and the power management chip 603 can be obtained and store this Voltage V2 at charging current I and interface 606, and the impedance R=(V1- of charging wire 602 are calculated according to Ohm's law V2)/I。

The impedance ranges that impedance R pre-sets with the electronic equipment are compared, when the impedance of the charging wire 602 exists When in default impedance ranges, then the electronic equipment can control the charger 601 to be filled according to specified charging current output Electric current.

When the impedance of the charging wire 602 is more than the higher limit of default impedance ranges, the electronic equipment may determine that and be Because charging wire 602 connects insufficient caused impedance increase, the same of output charging current is stopped the charger 601 is controlled When, the prompt message for pointing out the exception of charging wire 602 is exported by the screen and jingle bell device of electronic equipment.When the charging The impedance of line 602 less than default impedance ranges lower limit when, the electronic equipment control the charger 601 by output voltage from Voltage V2 is adjusted to the rated voltage V3 of the battery 604 of the electronic equipment, and according to default unit voltage from the battery 604 Rated voltage V3 rises and adjusts the output voltage of the charger 601 step by step, until the charging current of the charger 301 output reach it is pre- If maximum charging current.

Fig. 7 is a kind of block diagram of the charge protection device according to an exemplary embodiment, the charge protection device 700 Can be used for performing above-mentioned charge protection method, the device 700 being implemented in combination with by software, hardware or both, The device can apply to the electronic equipment described in above-mentioned application scenarios.Referring to Fig. 7, the charge protection device 700 can be wrapped Include：

First voltage acquisition module 710, is configured as obtaining the first voltage of charger output, and the first voltage is filled for this The voltage of the charging wire interface of charger when electrical equipment does not export charging current.

Current receiv module 720, is configured as obtaining the charger the first charging current of output, and first charging current is small In default current threshold.

The first voltage acquisition module 710, is additionally configured to obtain the charger when exporting first charging current, should The second voltage of the charging wire interface of electronic equipment.

First impedance acquisition module 730, is configured as according to the first voltage, the second voltage and the first charging electricity Stream, obtains the impedance of the charging wire.

First charge control module 740, is configured as carrying out corresponding charging operations according to the impedance of the charging wire.

Optionally, first charge control module 740, can be configured as：

When the impedance of the charging wire is in default impedance ranges, control the charger big according to specified charging current The second charging current of small output.

Optionally, first charge control module 740, can be configured as：

When the impedance of the charging wire is more than the higher limit of default impedance ranges, controls the charger to stop output and charge Electric current；

Export the prompt message for pointing out the charging wire abnormal.

Optionally, first charge control module 740, can be additionally configured to：

When the charging wire impedance less than default impedance ranges lower limit when, control the charger by output voltage from The first voltage is adjusted to tertiary voltage, and the tertiary voltage is the battery rated voltage of the electronic equipment, and according to default list Position voltage adjusts the output voltage of the charger step by step from the tertiary voltage, until the charging current of charger output reaches Default maximum charging current.

Fig. 8 is a kind of block diagram of the charge protection device according to another exemplary embodiment, referring to Fig. 8, is applied to Electronic equipment described in above-mentioned application scenarios, the charge protection device can also include：

First protocol handshake module 750, is configured as detecting that the charger accesses the electronic equipment by the charging wire When, carry out charge protocol with the charger and shake hands.

First detection starting module 760, is configured as being carried out after charge protocol shakes hands successfully with the charger, according to holding The successful charge protocol of hand judges whether to start impedance detection function.

First detection active module 770, when being configured as determining to start the impedance detection function, activates the impedance detection Function.

First output performing module 780, is configured as after the impedance detection function is activated, and performs the acquisition charger defeated The first voltage for going out.

Optionally, the output is used for the prompt message for pointing out the charging wire abnormal, including it is following at least one：

Export the prompt tone for pointing out the charging wire abnormal；

Shake the electronic equipment；

In sum, the electronic equipment of the charge protection that the embodiment of the present disclosure is provided, obtains the of charger output first One voltage, the first voltage is the voltage of the charging wire interface of the charger when charger does not export charging current；Secondly Obtain the charger and export the first charging current, first charging current is less than default current threshold；The charging is obtained again When device exports first charging current, the second voltage of the charging wire interface of the electronic equipment；Then according to the first voltage, The second voltage and first charging current, obtain the impedance of the charging wire；Impedance finally according to the charging wire carries out correspondence Charging operations.Charging line impedence can be detected before charge function is discharged, and corresponding filling is carried out according to the impedance It is electrically operated, including adjust the size of charging current and charge reminder is carried out to user, potential charging wire exception can be avoided The problem of the extremely caused mobile phone of the impedance for causing and cell damage.

Fig. 9 is a kind of block diagram of the charge protection device according to an exemplary embodiment, the charge protection device 800 Can be used for performing above-mentioned charge protection method, the device 800 being implemented in combination with by software, hardware or both. Referring to Fig. 9, the charger described in above-mentioned application scenarios is applied to, the charge protection device 800 can include：

Voltage output module 810, is configured as exporting first voltage, and the first voltage does not export charging electricity for the charger The voltage of the charging wire interface of charger during stream.

Current output module 820, is configured as exporting the first charging current, and first charging current is less than default electric current Threshold value.

Second voltage acquisition module 830, is configured as obtaining the charger when exporting first charging current, and the electronics sets The second voltage of standby charging wire interface.

Second impedance detection module 840, is configured as according to the first voltage, the second voltage and the first charging electricity Stream, obtains the impedance of the charging wire.

Second charge control module 850, is configured as carrying out corresponding charging operations according to the impedance of the charging wire.

Optionally, second charge control module 850, can be configured as：

When the impedance of the charging wire is in default impedance ranges, filled according to specified charging current output second Electric current.

Optionally, second charge control module 850, can be configured as：

Export the prompt message for pointing out the charging wire abnormal.

Optionally, second charge control module 850, can be additionally configured to：

When the impedance of the charging wire is less than the lower limit of default impedance ranges, sends voltage to the electronic equipment and obtain Request, the voltage obtains request for obtaining tertiary voltage, and the tertiary voltage is the battery rated voltage of the electronic equipment；

Receive the tertiary voltage of electronic equipment transmission；

Output voltage is adjusted to tertiary voltage from the first voltage；

Judge whether the second charging current exported when output voltage is adjusted into the tertiary voltage reaches default maximum Charging current；

When second charging current is less than the maximum charging current, according to default unit voltage from the tertiary voltage The output voltage of the charger is adjusted step by step, until the charging current of charger output reaches default maximum charging current；

When second charging current reaches the maximum charging current, keep exporting second charging current.

Figure 10 is a kind of block diagram of the charge protection device according to another exemplary embodiment, and referring to Figure 10, this fills Electrical protective device can also include：

Second protocol handshake module 860, is configured as detecting that the charger accesses the electronic equipment by the charging wire When, carry out charge protocol with the electronic equipment and shake hands.

Second detection starting module 870, is configured as being carried out after charge protocol shakes hands successfully with the electronic equipment, according to Successful charge protocol of shaking hands judges whether to start impedance detection function.

Second detection active module 880, when being configured as determining to start the impedance detection function, activates the impedance detection Function.

Second output performing module 890, is configured as after the impedance detection function is activated, and performs the first electricity of the output Pressure.

In sum, the charger of the charge protection that the embodiment of the present disclosure is provided, obtains the first of charger output first Voltage, the first voltage is the voltage of the charging wire interface of the charger when charger does not export charging current；Next is obtained Take the charger and export the first charging current, first charging current is less than default current threshold；The charger is obtained again When exporting first charging current, the second voltage of the charging wire interface of the electronic equipment；Then according to the first voltage, should Second voltage and first charging current, obtain the impedance of the charging wire；Finally according to the charging wire impedance carry out it is corresponding Charging operations.Charging line impedence can be detected before charge function is discharged, and corresponding charging is carried out according to the impedance Operation, including adjust the size of charging current and charge reminder is carried out to user, potential charging wire can be avoided to make extremely Into the extremely caused mobile phone of impedance and cell damage problem.

On the device in above-described embodiment, wherein modules perform the concrete mode of operation in relevant the method Embodiment in be described in detail, explanation will be not set forth in detail herein.

Figure 11 is a kind of block diagram of the charge protection device 1100 according to an exemplary embodiment.For example, device 1100 can be mobile phone, computer, digital broadcast terminal, messaging devices, game console, tablet device, medical treatment Equipment, body-building equipment, personal digital assistant etc..

Reference picture 11, device 1100 can include following one or more assemblies：Processing assembly 1102, memory 1104, Electric power assembly 1106, multimedia groupware 1108, audio-frequency assembly 1111, the interface 1112 of input/output (I/O), sensor cluster 1114, and communication component 1116.

The integrated operation of the usual control device 1100 of processing assembly 1102, such as with display, call, data communication, Camera operation and the associated operation of record operation.Processing assembly 1102 can include one or more processors 1120 to perform Instruction, to complete all or part of step of above-mentioned charge protection method.Additionally, processing assembly 1102 can include one or Multiple modules, are easy to the interaction between processing assembly 1102 and other assemblies.For example, processing assembly 1102 can include multimedia Module, to facilitate the interaction between multimedia groupware 1108 and processing assembly 1102.

Memory 1104 is configured as storing various types of data supporting the operation in device 1100.These data Instruction of the example including any application program or method for being operated on device 1100, contact data, telephone book data, Message, picture, video etc..Memory 1104 can by any kind of volatibility or non-volatile memory device or they Combination realizes, such as static RAM (SRAM), Electrically Erasable Read Only Memory (EEPROM), it is erasable can Program read-only memory (EPROM), programmable read only memory (PROM), read-only storage (ROM), magnetic memory, flash memory Reservoir, disk or CD.

Electric power assembly 1106 provides electric power for the various assemblies of device 1100.Electric power assembly 1106 can include power management System, one or more power supplys, and other generate, manage and distribute the component that electric power is associated with for device 1100.

Multimedia groupware 1108 is included in one screen of output interface of offer between described device 1100 and user. In some embodiments, screen can include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, Screen may be implemented as touch-screen, to receive the input signal from user.Touch panel includes that one or more touches are passed Sensor is with the gesture on sensing touch, slip and touch panel.The touch sensor can not only sensing touch or slip be dynamic The border of work, but also the detection duration related to the touch or slide and pressure.In certain embodiments, it is many Media component 1108 includes a front camera and/or rear camera.When device 1100 is in operator scheme, mould is such as shot When formula or video mode, front camera and/or rear camera can receive outside multi-medium data.Each preposition shooting Head and rear camera can be a fixed optical lens systems or with focusing and optical zoom capabilities.

Audio-frequency assembly 1110 is configured as output and/or input audio signal.For example, audio-frequency assembly 1110 includes a wheat Gram wind (MIC), when device 1100 is in operator scheme, such as call model, logging mode and speech recognition mode, microphone quilt It is configured to receive external audio signal.The audio signal for being received can be further stored in memory 1104 or via communication Component 1116 sends.In certain embodiments, audio-frequency assembly 1110 also includes a loudspeaker, for exports audio signal.

I/O interfaces 1112 are that interface, above-mentioned peripheral interface module are provided between processing assembly 1102 and peripheral interface module Can be keyboard, click wheel, button etc..These buttons may include but be not limited to：Home button, volume button, start button and Locking press button.

Sensor cluster 1114 includes one or more sensors, and the state for providing various aspects for device 1100 is commented Estimate.For example, sensor cluster 1114 can detect the opening/closed mode of device 1100, the relative positioning of component, such as institute Display and keypad that component is device 1100 are stated, sensor cluster 1114 can be with detection means 1100 or device 1,100 1 The position of individual component changes, and user is presence or absence of with what device 1100 was contacted, the orientation of device 1100 or acceleration/deceleration and dress Put 1100 temperature change.Sensor cluster 1114 can include proximity transducer, be configured to without any physics The presence of object nearby is detected during contact.Sensor cluster 1114 can also include optical sensor, and such as CMOS or ccd image are sensed Device, for being used in imaging applications.In certain embodiments, the sensor cluster 1114 can also include acceleration sensing Device, gyro sensor, Magnetic Sensor, pressure sensor or temperature sensor.

Communication component 1116 is configured to facilitate the communication of wired or wireless way between device 1100 and other equipment.Dress Putting 1100 can access the wireless network based on communication standard, such as WiFi, 2G or 3G, or combinations thereof.It is exemplary at one In embodiment, communication component 1116 receives broadcast singal or broadcast correlation from external broadcasting management system via broadcast channel Information.In one exemplary embodiment, the communication component 1116 also includes near-field communication (NFC) module, to promote short distance Communication.For example, radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band can be based in NFC module (UWB) technology, bluetooth (BT) technology and other technologies are realized.

In the exemplary embodiment, device 1100 can be by one or more application specific integrated circuits (ASIC), numeral Signal processor (DSP), digital signal processing appts (DSPD), PLD (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic components realization, for performing above-mentioned charge protection method.

In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instructing, example are additionally provided Such as include the memory 1104 of instruction, above-mentioned instruction can be performed to complete above-mentioned charger by the processor 1120 of device 1100 Maintaining method.For example, the non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD- ROM, tape, floppy disk and optical data storage devices etc..

Those skilled in the art will readily occur to other embodiment party of the disclosure after considering specification and putting into practice the disclosure Case.The application is intended to any modification, purposes or the adaptations of the disclosure, these modifications, purposes or adaptability Change follows the general principle of the disclosure and including the undocumented common knowledge or usual skill in the art of the disclosure Art means.Description and embodiments are considered only as exemplary, and the true scope of the disclosure and spirit are by following claim Point out.

It should be appreciated that the disclosure is not limited to the precision architecture for being described above and being shown in the drawings, and And can without departing from the scope carry out various modifications and changes.The scope of the present disclosure is only limited by appended claim.

Claims

1. a kind of charge protection method, it is characterised in that be applied to electronic equipment, methods described includes：

The first voltage of charger output is obtained, the first voltage does not export charging during charging current for the charger The voltage of the charging wire interface of device；

When obtaining charger output first charging current, the second electricity of the charging wire interface of the electronic equipment Pressure；

2. method according to claim 1, it is characterised in that the impedance according to the charging wire carries out corresponding filling It is electrically operated, including：

3. method according to claim 1, it is characterised in that the impedance according to the charging wire carries out corresponding filling It is electrically operated, including：

Export the prompt message for pointing out the charging wire abnormal.

4. method according to claim 1, it is characterised in that the impedance according to the charging wire carries out corresponding filling It is electrically operated, including：

When the charging wire impedance less than default impedance ranges lower limit when, control the charger by output voltage from The first voltage is adjusted to tertiary voltage, and the tertiary voltage is the battery rated voltage of the electronic equipment, and according to pre- If unit voltage adjust the output voltage of the charger step by step from the tertiary voltage, until charger output Charging current reaches default maximum charging current.

5. method according to claim 1, it is characterised in that methods described also includes：

When detecting that the charger accesses the electronic equipment by the charging wire, charge protocol is carried out with the charger Shake hands；

After carrying out charge protocol with the charger and shaking hands successfully, judged whether to start resistance according to successful charge protocol of shaking hands Anti- detection function；

6. method according to claim 3, it is characterised in that the output is used for the prompting for pointing out the charging wire abnormal Information, including it is following at least one：

Prompt message described in display screen display in the electronic equipment, the content of the prompt message includes word, figure In any one；

Export the prompt tone for pointing out the charging wire abnormal；

Shake the electronic equipment；

7. a kind of charge protection method, it is characterised in that be applied to charger, methods described includes：

Output first voltage, the first voltage is that the charging wire of the charger when charger does not export charging current connects Voltage at mouthful；

8. method according to claim 7, it is characterised in that the impedance according to the charging wire carries out corresponding filling It is electrically operated, including：

When the impedance of the charging wire is in default impedance ranges, charged according to specified charging current output second Electric current.

9. method according to claim 7, it is characterised in that the impedance according to the charging wire carries out corresponding filling It is electrically operated, including：

Export the prompt message for pointing out the charging wire abnormal.

10. method according to claim 7, it is characterised in that the impedance according to the charging wire carries out corresponding Charging operations, including：

When the impedance of the charging wire is less than the lower limit of default impedance ranges, sends voltage to the electronic equipment and obtain Request, the voltage obtains request for obtaining tertiary voltage, and the tertiary voltage is the specified electricity of battery of the electronic equipment Pressure；

Receive the tertiary voltage that the electronic equipment sends；

Output voltage is adjusted to tertiary voltage from the first voltage；

Judge whether the second charging current exported when output voltage is adjusted into the tertiary voltage reaches default maximum and fill Electric current；

When second charging current is less than the maximum charging current, according to default unit voltage from the tertiary voltage The output voltage for adjusting the charger step by step is played, until the charging current of charger output reaches default maximum charge Electric current；

11. methods according to claim 7, it is characterised in that methods described also includes：

When detecting that the charger accesses the electronic equipment by the charging wire, charging association is carried out with the electronic equipment View is shaken hands；

After carrying out charge protocol with the electronic equipment and shaking hands successfully, judged whether to start according to successful charge protocol of shaking hands Impedance detection function；

After the impedance detection function is activated, the output first voltage is performed.

12. a kind of charge protection devices, it is characterised in that be applied to electronic equipment, described device includes：

First voltage acquisition module, is configured as obtaining the first voltage of charger output, and the first voltage is the charging Device does not export the voltage of the charging wire interface of charger during charging current；

Electric current acquisition module, is configured as obtaining the first charging current of the charger output, and first charging current is small In default current threshold；

The first voltage acquisition module, it is described when being additionally configured to obtain charger output first charging current The second voltage of the charging wire interface of electronic equipment；

First impedance acquisition module, is configured as according to the first voltage, the second voltage and first charging current, Obtain the impedance of the charging wire；

13. devices according to claim 12, it is characterised in that first charge control module, are configured as：

14. devices according to claim 12, it is characterised in that first charge control module, are configured as：

Export the prompt message for pointing out the charging wire abnormal.

15. devices according to claim 12, it is characterised in that first charge control module, are configured as：

16. devices according to claim 12, it is characterised in that described device also includes：

First protocol handshake module, is configured as detecting that the charger accesses the electronic equipment by the charging wire When, carry out charge protocol with the charger and shake hands；

First detection starting module, is configured as being carried out after charge protocol shakes hands successfully with the charger, according to shaking hands into The charge protocol of work(judges whether to start impedance detection function；

First detection active module, when being configured as determining to start the impedance detection function, activates the impedance detection work( Energy；

First output performing module, is configured as after the impedance detection function is activated, and performs the acquisition charger output First voltage.

17. devices according to claim 14, it is characterised in that the output is used to point out carrying for the charging wire exception Show information, including it is following at least one：

Export the prompt tone for pointing out the charging wire abnormal；

Shake the electronic equipment；

18. a kind of charge protection devices, it is characterised in that be applied to charger, described device includes：

Voltage output module, is configured as exporting first voltage, and the first voltage does not export charging current for the charger The voltage of the charging wire interface of Shi Suoshu chargers；

Current output module, is configured as exporting the first charging current, and first charging current is less than default current threshold；

Second voltage acquisition module, when being configured as obtaining charger output first charging current, the electronics sets The second voltage of standby charging wire interface；

Second impedance detection module, is configured as according to the first voltage, the second voltage and first charging current, Obtain the impedance of the charging wire；

19. devices according to claim 18, it is characterised in that second charge control module, are configured as：

20. devices according to claim 18, it is characterised in that second charge control module, are configured as：

Export the prompt message for pointing out the charging wire abnormal.

21. devices according to claim 18, it is characterised in that second charge control module, are configured as：

Receive the tertiary voltage that the electronic equipment sends；

Output voltage is adjusted to tertiary voltage from the first voltage；

22. devices according to claim 18, it is characterised in that described device also includes：

Second protocol handshake module, is configured as detecting that the charger accesses the electronic equipment by the charging wire When, carry out charge protocol with the electronic equipment and shake hands；

Second detection starting module, is configured as being carried out after charge protocol shakes hands successfully with the electronic equipment, according to shaking hands Successful charge protocol judges whether to start impedance detection function；

Second detection active module, when being configured as determining to start the impedance detection function, activates the impedance detection work( Energy；

Second output performing module, is configured as after the impedance detection function is activated, and performs the output first voltage.

23. a kind of charge protection devices, it is characterised in that described device includes：

Processor；

Memory for storing processor-executable instruction；

Wherein, the processor is configured as：

Receive the charger and export the first charging current, first charging current is less than default current threshold；

24. a kind of charge protection devices, it is characterised in that described device includes：

Processor；

Memory for storing processor-executable instruction；

Wherein, the processor is configured as：