CN103633709B - A kind of charging recognition system and recognition methods thereof - Google Patents
A kind of charging recognition system and recognition methods thereof Download PDFInfo
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- CN103633709B CN103633709B CN201310668845.3A CN201310668845A CN103633709B CN 103633709 B CN103633709 B CN 103633709B CN 201310668845 A CN201310668845 A CN 201310668845A CN 103633709 B CN103633709 B CN 103633709B
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Abstract
The invention discloses a kind of charging recognition system and recognition methods thereof, it comprises charger and mobile terminal, and charger comprises charging output module, equipment Inspection module and charging output interface; Mobile terminal comprises charging input interface, charging arranges module, charger detection module and input processing module; Charging output module, equipment Inspection module, charging output interface connect successively, and charging arranges module, charger detection module, input processing module all connect charging input interface, and charging output interface connects charging input interface.The present invention detects the current sequence of mobile terminal by equipment Inspection module, and compares the validity of mating and identifying mobile terminal with predetermined current sequence in equipment Inspection module, according to the charged state of Validity control charger; As long as the current sequence in mobile terminal is mated with the current sequence of charger namely chargeable, improve the compatibility of charger, make charging more safe and reliable.
Description
Technical field
The present invention relates to electronics and produce device charging technique, particularly one charging recognition system and recognition methods thereof.
Background technology
Along with charging accident repeatedly occurs the charge prepd of many families world-class mobile terminal manufacturers produce, people are more and more higher for the requirement of charging safety.Charger is the most frequently used and annex of indispensability as mobile terminal, must have higher reliability and fail safe.But due to most of mobile terminal standard configuration charger circuit simplicity of design and charging inlet can be general, cause user that non-standard charger can be used in routine use process to charge to mobile terminal.Owing to generally there is the difference on electric parameter between non-standard charger and standard configuration charger, easily generation is charged extremely, is occurred damaging the situation such as charger, mobile terminal.
Therefore, mobile device manufacturer is all devoted to produce the mobile terminal that can only use standard configuration charger mostly at present, and the mobile terminal product that such as Apple produces all can only use apple charger to charge.Do like this and can set up brand authority on the one hand; Also force users can use standard configuration charger on the other hand, greatly reduce the various charging safety problems owing to using non-standard charger to cause.But, this reduces the compatibility of charger.Many moneys mobile terminal is equipped with corresponding charger can make user carry inconvenience, if standard configuration charger is lost or damaged, cannot charge, not only affect the use of user, also increases cost.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part, the object of the present invention is to provide a kind of charging recognition system and recognition methods thereof, low with the compatibility solving standard configuration charger in present technology, to carry inconvenience problem.
In order to achieve the above object, this invention takes following technical scheme:
A kind of charging recognition system, comprise charger and mobile terminal, described charger can identify the validity of mobile terminal, according to the Validity control of mobile terminal to the charged state of the battery of mobile terminal, wherein,
Described charger comprises:
Charging output module, for exporting corresponding charging voltage and charging current according to the current sequence of described mobile terminal;
Equipment Inspection module, for detecting the current sequence of mobile terminal, judges the validity of mobile terminal, according to the charged state of described Validity control charger according to the comparative result of current sequence and predetermined current sequence;
Charging output interface, for exporting charging voltage, charging current, and the current sequence of mobile terminal receive;
Described mobile terminal comprises:
Charging input interface, for receiving charging voltage, charging current, and the current sequence of output mobile terminal;
Charging arranges module, for arranging and the current sequence of memory mobile terminal, according to the charging current that current sequence adjustment charger exports;
Whether charger detection module, be connected with charging input interface for detecting charger, and when charger accesses, startup input processing module and charging arrange module;
Input processing module, for obtaining the current battery charge of mobile terminal, current battery charge and predetermined threshold value are compared, determines whether needing star t-up discharge unit according to comparative result, to ensure that charger can export the charging current of charging and arranging set by module;
The charging output module of described charger, equipment Inspection module, charging output interface connect successively, the charging of described mobile terminal arranges module, charger detection module, input processing module all connect charging input interface, and described charging output interface connects charging input interface;
Described current sequence is a string current value.
In described charging recognition system, described equipment Inspection module comprises sampling resistor, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, charge enable unit and microcontroller; One end connection charging output module of described sampling resistor, the other end of sampling resistor connects the input of the enable unit of charging, and the first test side of described microcontroller is by one end of the first resistance connection sampling resistor, also by the second grounding through resistance; Second test side of described microcontroller is by the other end of the 3rd resistance connection sampling resistor, also by the 4th grounding through resistance; The output of described microcontroller connects the control end of the enable unit of charging; The output of the enable unit of described charging connects charging output interface.
In described charging recognition system, described microcontroller comprises:
First voltage detection unit, for detecting the voltage on its first test side;
Second voltage detection unit, for detecting the voltage on its second test side;
Voltage comparison unit, flows through the current value of sampling resistor for calculating according to the voltage on first and second test side, and whether more described current value is identical with predetermined current sequence and export corresponding comparative result and open and close the enable unit that charges.
In described charging recognition system, described first resistance is identical with the resistance of the 3rd resistance, and the second resistance is identical with the resistance of the 4th resistance.
In described charging recognition system, the enable unit of described charging is switching circuit.
In described charging recognition system, described charging arranges module and comprises:
Memory cell, for arranging and storaging current sequence;
Current setting unit, controls the charging current of charger output for calling current sequence;
Described memory cell connects charging input interface by current setting unit.
In described charging recognition system, described input processing module comprises:
Comparision of quantity of electricity unit, for obtaining the current battery charge of mobile terminal, compares described current battery charge with predetermined threshold value; The star t-up discharge unit when current battery charge is greater than predetermined threshold value;
Discharge cell, for bleeding off the part charging current of charger input.
Adopt a recognition methods for described charging recognition system, it comprises:
When the charger detection module of A, mobile terminal detects that charger accesses, input processing module obtains the current battery charge of mobile terminal, current battery charge and predetermined threshold value are compared, determine whether needing star t-up discharge unit according to comparative result, to ensure that charger can export the charging current of charging and arranging set by module;
The charging output module of B, charger exports corresponding charging voltage and charging current according to the charging current sequence arranged in module;
C, equipment Inspection module detect the current sequence of mobile terminal, judge the validity of mobile terminal, according to the charged state of described Validity control charger according to the comparative result of current sequence and parameter preset.
In described recognition methods, described steps A specifically comprises:
When A1, charger are connected with mobile terminal, whether charger detection module detects charging output interface and is successfully connected with charging input interface, and when successfully connecting, startup input processing module and charging arrange module;
Comparision of quantity of electricity unit in A2, input processing module obtains the current battery charge of mobile terminal, judges whether described current battery charge is less than predetermined threshold value: if be less than, then perform steps A 3; If be greater than, then perform steps A 4;
A3, the current setting unit current sequence called in memory cell controls the charging current that charger exports;
A4, star t-up discharge unit bleed off the part charging current of charger input, and the part charging current bled off equals the maximum of current sequence in memory cell.
In described recognition methods, described step C specifically comprises:
C1, the first voltage detection unit detect the voltage on its first test side, and the second voltage detection unit detects the voltage on its second test side;
C2, voltage comparison unit calculate the current value flowing through sampling resistor according to the voltage on first and second test side, whether more described current value is identical with the predetermined current sequence stored in voltage comparison unit;
When C3, current value are identical with predetermined current sequence, the enable unit that charges keeps conducting state; When current value is different from predetermined current sequence, voltage comparison unit controls the enable unit of charging and disconnects.
Compared to prior art, charging recognition system provided by the invention and recognition methods thereof, the validity of mobile terminal is identified by charger, the current sequence of mobile terminal is detected by the equipment Inspection module of charger, and compare the validity of mating and identifying mobile terminal with predetermined current sequence in equipment Inspection module, according to the charged state of described Validity control charger; Because the current sequence of mobile terminal can arrange amendment, as long as the current sequence in mobile terminal is mated with the current sequence of charger namely chargeable, improve the compatibility of charger, make charging more safe and reliable.
Accompanying drawing explanation
Fig. 1 is that the present invention charges the schematic diagram of charger in recognition system.
Fig. 2 is that the present invention charges the structured flowchart of mobile terminal in recognition system.
Fig. 3 is the recognition methods flow chart of charging recognition system of the present invention.
Embodiment
The invention provides a kind of charging recognition system and recognition methods thereof, identified the validity of mobile terminal by charger.Confirm that when the current sequence arranged in mobile terminal is identical with the current sequence stored in charger mobile terminal is effective, charger charges to mobile terminal.Only need guarantee that the quality of the charger of standard configuration can guarantee charging security.Because the current sequence in mobile terminal can be changed, the current sequence that the mobile terminal of different brands shares regulation can use charger to charge, improve the compatibility of charger, avoid many moneys mobile terminal the to carry problem of carrying inconvenience that multiple charger causes.For making object of the present invention, technical scheme and effect clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Please refer to Fig. 1 and Fig. 2, charging recognition system provided by the invention comprises charger and mobile terminal.Described charger can identify the validity of mobile terminal, according to the Validity control of mobile terminal to the charged state of mobile terminal.Wherein, described charger comprises charging output module 100, equipment Inspection module 200 and charging output interface 300.Described mobile terminal comprises charging input interface 400, charging arranges module 500, charger detection module 600 and input processing module 700.Described charging output module 100, equipment Inspection module 200, charging output interface 300 connect successively.Described charging arranges module 500, charger detection module 600, input processing module 700 and all connects charging input interface 400.
When charger inserts mobile terminal, the VDD2 pin of the charging output interface 300 of charger, GND pin are connected with the VDD pin of the charging input interface 400 of mobile terminal, GND pin respectively.Now, whether charger detection module 600 detects charger and is successfully connected with charging input interface 400, if the VDD pin of detection charging input interface 400 has 5V voltage, namely represents charger and mobile terminal successful connection.Need to start input processing module 700 to judge current battery charge before starting charging, start charging and module 500 is set to arrange the charging current of charger output.
Described charging arranges module 500 and arranges and the current sequence of memory mobile terminal, and described current sequence is a string current value, such as: 100mA, 300mA, 200mA, 150mA, 100mA, 200mA.The charging current that mobile terminal exports according to the corresponding adjustment charger of described current sequence, makes the size of charging current identical with current sequence.During concrete enforcement, described charging arranges module 500 and comprises memory cell 501 and current setting unit 502, and described memory cell 501 connects charging input interface 400 by current setting unit 502.Memory cell 501 is for arranging and storaging current sequence.The charging current that current setting unit 502 exports for calling this current sequence adjustment charger.In other words, the charging current of charger output is identical with the current sequence of the mobile terminal that equipment Inspection module 200 detects.
During actual charging, battery electric quantity determines the size of charging current.If battery electric quantity is low, then need larger charging current; If battery electric quantity is higher, only need very little charging current.Cannot may detect on charger for this very little charging current.Therefore, after charger inserts, the current battery charge of mobile terminal is obtained by input processing module 700, current battery charge and predetermined threshold value (judging the threshold value whether charging current can be detected) are compared, determine whether needing star t-up discharge unit according to comparative result, to ensure that charger can export the charging current of charging and arranging set by module.
In the specific implementation, described input processing module 700 comprises comparision of quantity of electricity unit 701 and discharge cell 702.Comparision of quantity of electricity unit 701 obtains the current battery charge of mobile terminal, is compared by described current battery charge with predetermined threshold value; The star t-up discharge unit 702 when current battery charge is greater than predetermined threshold value.Discharge cell 702 bleeds off the part charging current of charger input, makes charger the current sequence of mobile terminal can be detected and can guarantee again to carry out low current charge to battery.If when current battery charge is less than predetermined threshold value, discharge cell 702 does not start, and now current setting unit 502 works, and makes the charging output module 100 of charger export corresponding charging voltage and charging current according to the current sequence of mobile terminal.This charging voltage is 5V direct voltage, and the charging current that charger exports changes according to the sequencing of the current sequence (as 100mA, 300mA, 200mA, 150mA, 100mA, 200mA) of mobile terminal.
Now, equipment Inspection module 200 detects the current sequence of mobile terminal, judges the validity of mobile terminal, according to the charged state of described Validity control charger according to the comparative result of current sequence and predetermined current sequence.If the current sequence of mobile terminal is identical with predetermined current sequence in charger, then mobile terminal is effective, can keep charged state; If different, then mobile terminal is invalid, and equipment Inspection module disconnects charging path, stops charging.
Described equipment Inspection module 200 comprises sampling resistor Rs, the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, charge enable unit 220 and microcontroller 210; One end of described sampling resistor Rs connects the VDD1 pin of charging output module 100, the other end of sampling resistor Rs connects the input 1 of the enable unit of charging, and the first test side a of described microcontroller 210 is by one end of the first resistance R1 connection sampling resistor Rs, also by the second resistance R2 ground connection; Second test side b of described microcontroller 210 is by the other end of the 3rd resistance R3 connection sampling resistor Rs, also by the 4th resistance R4 ground connection; The output c of described microcontroller 210 connects the control end 3 of the enable unit 220 of charging; The output 2 of the enable unit 220 of described charging connects the VDD2 pin of charging output interface 300.
Please continue to refer to Fig. 1, the electric current flowing through sampling resistor Rs is the charging current of mobile terminal needs, and this charging current changes according to the value arrangements of the current sequence in mobile terminal.Microcontroller 210 can calculate according to the voltage (VRs1, VRs2) at sampling resistor Rs two ends and resistance thereof the electric current flowing through sampling resistor Rs.Described microcontroller 210 comprises the first voltage detection unit 211 for detecting the voltage on the first test side, for detecting the second voltage detection unit 212 of the voltage on the second test side, and flow through the current value of sampling resistor for calculating according to the voltage on first and second test side, whether more described current value is identical with predetermined current sequence and export the voltage comparison unit 213 that corresponding comparative result opens and closes the enable unit that charges.
Described formula is:
,
,
wherein, IRs represents the electric current flowing through sampling resistor, and VRs1, VRs2 represent the voltage at sampling resistor two ends, and V1 represents the voltage on the first test side, V2 represents the voltage on the second test side, Rs represents the resistance of sampling resistor, and R1 represents the resistance of the first resistance, and R2 represents the resistance of the second resistance, R3 represents the resistance of the 3rd resistance, and R4 represents the resistance of the 4th resistance.
In order to not affect the size of charging current, can sample again the value of this charging current, the resistance of described sampling resistor is 10m Ω.Conveniently calculate, in the present embodiment, described first resistance R1 is identical with the resistance of the 3rd resistance R3, and the second resistance R2 is identical with the resistance of the 4th resistance R4.More preferably, R1=R3=500k Ω, R2=R4=180k Ω.Then
.
The electric current I Rs flowing through sampling resistor Rs reflects value and the arrangement mode thereof of the current sequence of mobile terminal.Predetermined current sequence has been prestored in voltage comparison unit 213, it is by the IRs that calculates and predetermined current gene comparision, be equivalent to the current sequence of charger to compare with the current sequence of mobile terminal: if two current sequence are identical, represent that mobile terminal is effective, can charge to it, keep the conducting state of the enable unit 220 of charging; If two current sequence are not identical, represent that mobile terminal is invalid, should stop charging, the enable unit 220 of now voltage comparison unit 213 control charging disconnects, and stops charging.
In the specific implementation, the enable unit 220 of described charging being switching circuit, as adopted the switching tube of metal-oxide-semiconductor or triode and so on, one-way conduction also can being adopted to have the switching device of leakage protection measure.
Should be understood that, when charger inserts mobile terminal, the enable unit 220 that charges is conductings, and now charger charges to mobile terminal.Then charger detects the current sequence of mobile terminal at once to judge the validity of mobile terminal, and this process completes in Preset Time (2s or 5s).After determining that mobile terminal effectively, charging setting unit 502 can no longer call current sequence in memory cell 501, installs existing charging setting and carries out charging.In other words, current sequence, only as the foundation judging mobile terminal validity, does not affect normal charged state.
Based on above-mentioned charging recognition system, the present invention is also corresponding provides a kind of recognition methods, whether legal detects mobile terminal during for charging by charger.Whether the present invention has broken existing technology prejudice (detecting whether charger is standard configuration charger or whether qualified by mobile terminal), adopt charger to detect mobile terminal effective.The charger adopted is the charger of standard configuration, and mass effect is guaranteed.As long as the current sequence that mobile terminal has coupling can make charger charge to it.As long as each like this electronics brand combined authorization, all download the current sequence and the charging of available charger that use coupling, improve the compatibility of charger, also achieve the fusion between a brand simultaneously, greatly facilitate portably using of user, decrease purchase cost, also improve the fail safe of charging.As shown in Figure 3, described recognition methods comprises:
When the charger detection module of S100, mobile terminal detects that charger accesses, input processing module obtains the current battery charge of mobile terminal, current battery charge and predetermined threshold value are compared, determine whether needing star t-up discharge unit according to comparative result, to ensure that charger can export the charging current of charging and arranging set by module;
The charging output module of S200, charger exports corresponding charging voltage and charging current according to the charging current sequence arranged in module;
S300, equipment Inspection module detect the current sequence of mobile terminal, judge the validity of mobile terminal, according to the charged state of described Validity control charger according to the comparative result of current sequence and parameter preset.
Because the current sequence arranged in memory cell is fixed value, as the judgement of mobile terminal validity.The charging current that current setting unit calls the output of this current sequence control charger is fixed value.When considering that mobile terminal charges, its battery electric quantity is different, only needs low current charge, just need large current charge during battery electric quantity height when battery electric quantity is low.Therefore, when battery electric quantity is higher, controlling charging current that charger exports to make current setting unit can identical with current sequence (now charging current be larger), and this charging current can not damage battery, needs to reduce the charging current be input in battery.Then described S100 specifically comprises: when charger is connected with mobile terminal, and whether charger detection module detects charging output interface and be successfully connected with charging input interface, and when successfully connecting, startup input processing module and charging arrange module; Now to charge enable cell conduction.Then, comparision of quantity of electricity unit in input processing module obtains the current battery charge of mobile terminal, judge whether described current battery charge is less than predetermined threshold value: if be less than, then the current setting unit current sequence called in memory cell controls the charging current that charger exports; If be greater than, then star t-up discharge unit bleeds off the part charging current of charger input, and the part charging current bled off equals the maximum of current sequence in memory cell.Like this when battery electric quantity is higher, charger can detect the current sequence of mobile terminal and can guarantee again to carry out low current charge to battery.
Please refer to Fig. 1, the current sequence flowing through the careless mobile terminal of sampling resistor Rs electric current synchronously changes, and the voltage that equipment Inspection module 200 calculates sampling resistor Rs two ends can obtain the current sequence of mobile terminal.Described step S300 specifically comprises: the first step, the first voltage detection unit detect the voltage on its first test side, and the second voltage detection unit detects the voltage on its second test side.Second step, voltage comparison unit calculate the current value flowing through sampling resistor according to the voltage on first and second test side, whether more described current value is identical with the predetermined current sequence stored in voltage comparison unit; In the present embodiment, the first resistance R1 is identical with the resistance of the 3rd resistance R3, and the second resistance R2 is identical with the resistance of the 4th resistance R4, and therefore computing formula is:
.When 3rd step, current value are identical with predetermined current sequence, the enable unit that charges keeps conducting state; When current value is different from predetermined current sequence, voltage comparison unit controls the enable unit of charging and disconnects.
In the specific implementation, described current sequence be a string current value, C1, C2, C3 ..., CN.Wherein, 1,2,3 ... N is current value sequence mark.Suppose that N equals 6, then current sequence can be 100mA(C1), 300mA(C2), 200mA(C3), 150mA(C4), 100mA(C5), 200mA(C6).Then charger charging output module export charging current in Preset Time (2s or 5s) according to the arrangement mode synchronous change successively of current sequence, the present embodiment was not construed as limiting, as long as complete the change of all current values in Preset Time the time that each current value continues.Owing to there being multiple current value in current sequence, above-mentioned second step and the 3rd step specifically comprise:
1, voltage comparison unit arranges variable Cx, and X is put 1.Described X is current value sequence mark, represents that voltage comparison unit first calls the first current value C1 in current sequence when X puts 1.
2, voltage comparison unit is according to formula
calculate the current current value IRs flowing through sampling resistor Rs.
3, judge whether this current value IRs equals current value Cx: if then return step 2 after the very first time reaches; If not, perform step 5.
4, judge whether X equals N: if perform step 6; Otherwise the value of X is added 1, returns step 2.
5, voltage comparison unit judges that mobile terminal is invalid, controls the enable unit of charging and disconnects, stop charging to mobile terminal.
6, voltage comparison unit judges that mobile terminal is effective, keeps the conducting state of the enable unit of charging, allows to charge to mobile terminal.
Owing to there being multiple current value in current sequence, need to be compared successively by step 2 ~ 4.First X is put 1 and call the first current value C1, the current value IRs that first time calculates is compared with the first current value C1.If not identical, then the current sequence of charger is different with the current sequence of mobile terminal, directly can stop charging.Because the present embodiment did not limit the time that current value each in current sequence continues, therefore need under identical circumstances to calculate primary current value IRs again after the very first time (as 100ms), judge whether the current value of mobile terminal is changed, after change, need X to be added 1, namely call the current value of next current value and mobile terminal and compare.Repeat step 2 ~ step 4, until the current sequence in mobile terminal and charger comparison is complete one by one, only have when current value in the current sequence of mobile terminal and the current sequence of charger size and sort completely the same time, charger identification mobile terminal is effective, can charge to it.As long as there have 1 current value correspondence not go up then mobile terminal to be invalid, can not charge.
Current value setting in current sequence and number need meet said process (step 1 ~ 6) and complete in Preset Time (2s or 5s), so namely can identify the validity of mobile terminal fast, can not affect charging effect again.Because the time is very short, potential safety hazard of charging can also be stopped.
In sum, charging recognition system provided by the invention and recognition methods thereof, identified the validity of mobile terminal by charger when charging, the current sequence of mobile terminal is detected by the equipment Inspection module of charger, and compare the validity of mating and identifying mobile terminal with predetermined current sequence in equipment Inspection module, confirm that when the current sequence arranged in mobile terminal is identical with the current sequence stored in charger mobile terminal is effective, charger charges to mobile terminal.Only need guarantee that the quality of the charger of standard configuration can guarantee charging security.Because the current sequence in mobile terminal can be changed, the current sequence that the mobile terminal of different brands shares regulation can use charger to charge, improve the compatibility of charger, avoid many moneys mobile terminal the to carry problem of carrying inconvenience that multiple charger causes, makes charging more safe and reliable.
Be understandable that, for those of ordinary skills, can be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, and all these change or replace the protection range that all should belong to the claim appended by the present invention.
Claims (10)
1. charge a recognition system, comprise charger and mobile terminal, described charger can identify the validity of mobile terminal, according to the Validity control of mobile terminal to the charged state of the battery of mobile terminal, it is characterized in that,
Described charger comprises:
Charging output module, for exporting corresponding charging voltage and charging current according to the current sequence of described mobile terminal;
Equipment Inspection module, for detecting the current sequence of mobile terminal, judges the validity of mobile terminal, according to the charged state of described Validity control charger according to the comparative result of current sequence and predetermined current sequence;
Charging output interface, for exporting charging voltage, charging current, and the current sequence of mobile terminal receive;
Described mobile terminal comprises:
Charging input interface, for receiving charging voltage, charging current, and the current sequence of output mobile terminal;
Charging arranges module, for arranging and the current sequence of memory mobile terminal, according to the charging current that current sequence adjustment charger exports;
Whether charger detection module, be connected with charging input interface for detecting charger, and when charger accesses, startup input processing module and charging arrange module;
Input processing module, for obtaining the current battery charge of mobile terminal, current battery charge and predetermined threshold value are compared, determines whether needing star t-up discharge unit according to comparative result, to ensure that charger can export the charging current of charging and arranging set by module;
The charging output module of described charger, equipment Inspection module, charging output interface connect successively, the charging of described mobile terminal arranges module, charger detection module, input processing module all connect charging input interface, and described charging output interface connects charging input interface;
Described current sequence is a string current value.
2. charging recognition system according to claim 1, is characterized in that, described equipment Inspection module comprises sampling resistor, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, charge enable unit and microcontroller; One end connection charging output module of described sampling resistor, the other end of sampling resistor connects the input of the enable unit of charging, and the first test side of described microcontroller is by one end of the first resistance connection sampling resistor, also by the second grounding through resistance; Second test side of described microcontroller is by the other end of the 3rd resistance connection sampling resistor, also by the 4th grounding through resistance; The output of described microcontroller connects the control end of the enable unit of charging; The output of the enable unit of described charging connects charging output interface.
3. charging recognition system according to claim 2, is characterized in that, described microcontroller comprises:
First voltage detection unit, for detecting the voltage on its first test side;
Second voltage detection unit, for detecting the voltage on its second test side;
Voltage comparison unit, flows through the current value of sampling resistor for calculating according to the voltage on first and second test side, and whether more described current value is identical with predetermined current sequence and export corresponding comparative result and open and close the enable unit that charges.
4. charging recognition system according to claim 3, is characterized in that, described first resistance is identical with the resistance of the 3rd resistance, and the second resistance is identical with the resistance of the 4th resistance.
5. charging recognition system according to claim 3, is characterized in that, the enable unit of described charging is switching circuit.
6. charging recognition system according to claim 1, is characterized in that, described charging arranges module and comprises:
Memory cell, for arranging and storaging current sequence;
Current setting unit, controls the charging current of charger output for calling current sequence;
Described memory cell connects charging input interface by current setting unit.
7. charging recognition system according to claim 6, is characterized in that, described input processing module comprises:
Comparision of quantity of electricity unit, for obtaining the current battery charge of mobile terminal, compares described current battery charge with predetermined threshold value; The star t-up discharge unit when current battery charge is greater than predetermined threshold value;
Discharge cell, for bleeding off the part charging current of charger input.
8. adopt a recognition methods for recognition system of charging described in claim 3, it is characterized in that, comprising:
When the charger detection module of A, mobile terminal detects that charger accesses, input processing module obtains the current battery charge of mobile terminal, current battery charge and predetermined threshold value are compared, determine whether needing star t-up discharge unit according to comparative result, to ensure that charger can export the charging current of charging and arranging set by module;
The charging output module of B, charger exports corresponding charging voltage and charging current according to the charging current sequence arranged in module;
C, equipment Inspection module detect the current sequence of mobile terminal, judge the validity of mobile terminal, according to the charged state of described Validity control charger according to the comparative result of current sequence and parameter preset.
9. recognition methods according to claim 8, is characterized in that, described steps A specifically comprises:
When A1, charger are connected with mobile terminal, whether charger detection module detects charging output interface and is successfully connected with charging input interface, and when successfully connecting, startup input processing module and charging arrange module;
Comparision of quantity of electricity unit in A2, input processing module obtains the current battery charge of mobile terminal, judges whether described current battery charge is less than predetermined threshold value: if be less than, then perform steps A 3; If be greater than, then perform steps A 4;
A3, the current setting unit current sequence called in memory cell controls the charging current that charger exports;
A4, star t-up discharge unit bleed off the part charging current of charger input, and the part charging current bled off equals the maximum of current sequence in memory cell.
10. recognition methods according to claim 8, is characterized in that, described step C specifically comprises:
C1, the first voltage detection unit detect the voltage on the first test side, and the second voltage detection unit detects the voltage on the second test side;
C2, voltage comparison unit calculate the current value flowing through sampling resistor according to the voltage on first and second test side, whether more described current value is identical with the predetermined current sequence stored in voltage comparison unit;
When C3, current value are identical with predetermined current sequence, the enable unit that charges keeps conducting state; When current value is different from predetermined current sequence, voltage comparison unit controls the enable unit of charging and disconnects.
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| CN201310668845.3A CN103633709B (en) | 2013-12-11 | 2013-12-11 | A kind of charging recognition system and recognition methods thereof |
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| CN201310668845.3A CN103633709B (en) | 2013-12-11 | 2013-12-11 | A kind of charging recognition system and recognition methods thereof |
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| CN103633709A CN103633709A (en) | 2014-03-12 |
| CN103633709B true CN103633709B (en) | 2015-10-28 |
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| CN104333088A (en) * | 2014-11-18 | 2015-02-04 | 惠州Tcl移动通信有限公司 | Method and system for preventing battery electric leakage after full charge of mobile terminal |
| CN105140983B (en) * | 2015-07-31 | 2017-11-10 | Tcl移动通信科技（宁波）有限公司 | A kind of battery, mobile terminal and its high current auto-cutout method |
| CN105553003A (en) * | 2015-12-25 | 2016-05-04 | 惠州Tcl移动通信有限公司 | Charge control method, mobile terminal and charge control system |
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| CN106026224B (en) * | 2016-05-18 | 2019-04-02 | Oppo广东移动通信有限公司 | A kind of power control |
| CN107991571A (en) * | 2016-10-26 | 2018-05-04 | 中兴通讯股份有限公司 | It is a kind of to detect the abnormal method, apparatus of charging and power supply adaptor |
| CN106356967B (en) * | 2016-10-31 | 2019-03-12 | 合肥联宝信息技术有限公司 | A kind of adapter and the electronic equipment configured with the adapter |
| EP3537560B1 (en) | 2016-11-29 | 2021-10-20 | Huawei Technologies Co., Ltd. | Method for determining charger, and related device and system |
| CN106655415B (en) * | 2017-03-14 | 2021-01-22 | 成都智朴思互联科技有限公司 | Intelligent universal charging identification and control device based on USB interface |
| CN108736527A (en) * | 2017-04-18 | 2018-11-02 | 中兴通讯股份有限公司 | A kind of charge control method, power supply adaptor and mobile terminal |
| CN108494035B (en) * | 2018-03-26 | 2020-09-04 | 郑州正方科技有限公司 | Method, device and system for identifying effectiveness of physical connection |
| CN109143107B (en) * | 2018-09-26 | 2021-11-23 | 惠州Tcl移动通信有限公司 | Battery parameter loading method, storage medium and mobile terminal |
| CN112514198A (en) * | 2020-01-15 | 2021-03-16 | 深圳市大疆创新科技有限公司 | Battery management method and system, battery, charger and movable platform |
| CN113809785A (en) * | 2020-06-17 | 2021-12-17 | 安沛科技股份有限公司 | Control system of charging device, method thereof and charging method |
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