CN101340011A - Intelligent charging method and apparatus - Google Patents
Intelligent charging method and apparatus Download PDFInfo
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- CN101340011A CN101340011A CNA2008101460505A CN200810146050A CN101340011A CN 101340011 A CN101340011 A CN 101340011A CN A2008101460505 A CNA2008101460505 A CN A2008101460505A CN 200810146050 A CN200810146050 A CN 200810146050A CN 101340011 A CN101340011 A CN 101340011A
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention provides an intelligent charging method and device; the method comprises the following steps: the maximum output current of a charger is detected: while charging up a terminal, the voltage at the two ends of the charger is detected, the maximum charging current which is obtained by detection and causes the voltage of the charger to be normal is taken as the maximum output current of the charger; and the charging current which is not more than the maximum output current is used for charging up the terminal; the device comprises a maximum output current detection module which is used for detecting the maximum output current of the charger and detecting the voltage of the charger while the charger charges up the terminal; and the maximum charging current which is obtained by detection and causes the voltage of the charger to be normal is taken as the maximum output current of the charger. The method and device of the invention cause the terminal to be capable of intelligently recognizing the maximum output current of different chargers and control the charging current to be within the safety range, improve the compatible capacity of the terminal to various chargers, protect the charger and reduce the probability of the safety accident.
Description
Technical field
The present invention relates to moving communicating field, particularly a kind of intelligent charging method and device.
Background technology
Along with the development of mobile communication technology, application is more and more, and the kind of handheld device also increases thereupon, and the kind of supporting charger is also a lot, and incompatible.Brought the huge wasting of resources thus, also brought adverse effect simultaneously to environment.Putting before this, China's Ministry of Information Industry has put into effect the industry standard of " YD/T1591-2006 mobile phone charger and interfacing require and method of testing ", stipulated that use USB (USB) interface is as unified charger interface, make the handheld terminal of different model can use identical charger, both reduced the waste of resource, convenient for users to use again.
The appearance of this standard will make various from now on handheld devices can be equipped with charger, and the user only need use the charger device just can be to dealing with the charging demand of various handheld devices.But, because the difference of power consumption between the handheld device so each equipment may be selected the battery of different capabilities for use, more likely is provided with different charging currents.The rated current of regulation charger is between 300mA～1800mA in the standard, different chargers has different rated current, if and the user will and be provided with when the equipment of charging current be used greatly than the charger that hangs down rated current, just might be because of the excessive tolerance range that surpasses charger of the charging current that equipment is provided with, cause the charging failure, burn out charger even, bring unnecessary loss to the user.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of intelligent charging method and device, thereby makes when using charger to terminal charge, and charging current can not surpass the tolerance range of charger.
In order to solve the problems of the technologies described above, the invention provides a kind of intelligent charging method, be applied to charger to terminal charge, comprise:
Detect the maximum output current of charger: to terminal charge the time, detect the voltage at described charger two ends, detect and make that the normal maximum charging current of voltage of described charger is the maximum output current of described charger;
Use is not more than the charging current of this maximum output current to this terminal charge.
Further, said method also can have following characteristics, and the maximum output current of described detection charger comprises following steps:
When initial, use an initial charge current that terminal is charged, detect the voltage of charger, when the voltage of described charger just often, then increase charging current, whether the voltage that detects charger again is normal, when charging current increases to the voltage of charger when undesired, begin to reduce charging current to charger voltage just often, this charging current is the maximum output current of described charger.
Further, said method also can have following characteristics, and the maximum output current of described detection charger comprises following steps:
When initial, use an initial charge current that terminal is charged, when the voltage of described charger is undesired, then reduce charging current, whether the voltage that detects charger again is normal, the voltage that is decreased to charger when charging current just often, this charging current is the maximum output current of described charger.
Further, said method also can have following characteristics, and when detecting the maximum output current of charger, the charging current that described terminal is charged is not less than the minimum charge current that described terminal allows, and is not more than the maximum charging current that described terminal allows.
Further, said method also can have following characteristics, described charging current is divided into a plurality of grades, reduce or when increasing charging current, be meant the charging current that is reduced to a certain grade under this grade, or increase to the charging current of a certain grade on this grade, charger voltage is undesired by normally becoming when the charging current from a grade reduces or increase to the charging current of its adjacent rank, or become normally by undesired, make that then the charging current of normal this grade of charger voltage is the maximum output current of described charger.
Further, said method also can have following characteristics, and whether described charger voltage is meant normally whether the voltage of described charger is in the voltage range of predesignating, perhaps the scope of setting according to described charger floating voltage.
The present invention also proposes a kind of intelligent charger, is applied to charger to terminal charge, comprises:
Maximum output current detection module: the maximum output current that is used to detect charger, when charger charges to terminal, detect the voltage of charger, detect and obtain making that the normal maximum charging current of voltage of described charger is the maximum output current of described charger.
Further, said apparatus also can have following characteristics, and described maximum output current detection module further comprises:
Other modules are managed and controlled to main control module, receives the testing result of charger voltage detection module, and indication charging current administration module is provided with charging current;
The charger voltage detection module, whether normal, send the voltage detecting result to main control module if being used to detect charger voltage;
The charging current administration module is used for the indication according to main control module, and charging current is set;
The charging current detection module is used to detect charging current, and with current detecting result notification main control module.
Further, said apparatus also can have following characteristics, described main control module, be used to indicate the charging current detection module that one initial charge current is set, main control module receives the voltage detecting result of charger voltage detection module, when described voltage detecting result be voltage just often, the indication that sends the increase charging current is to described charging current administration module, again receive the voltage detecting result of charger voltage detection module, continue indication charging current administration module according to this testing result and increase charging current, up to the voltage detecting result when being undesired, transmission reduces the indication of charging current to described charging current administration module, reduce the charging current of charging current to last grade, this moment, charging current was the maximum output current of charger.
Further, said apparatus also can have following characteristics, described main control module, be used to indicate the charging current detection module that one initial charge current is set, main control module receives the voltage detecting result of charger voltage detection module, and when described voltage detecting result be voltage when undesired, transmission reduces the indication of charging current to described charging current administration module, for just often, this charging current is the maximum output current of charger up to the voltage detecting result.
Adopt the method for the invention and device; make the maximum output current that same handheld terminal can the various different chargers of Intelligent Recognition; and then can control charging current (charging current is no more than the maximum output current of charger) in the scope of safety; improved the compatibility of terminal for various chargers; also protect charger, reduced the occurrence probability of security incident.
Description of drawings
Fig. 1 is an intelligent charger schematic diagram of the present invention;
Fig. 2 is that the embodiment of the invention one hand-held terminal is to charger maximum output current testing process figure;
Fig. 3 is that the embodiment of the invention two hand-held terminals are to charger maximum output current testing process figure;
Fig. 4 is that the embodiment of the invention three handheld terminals are to charger maximum output current testing process figure.
Embodiment
Be described in further detail below in conjunction with the enforcement of accompanying drawing technical scheme.
The present invention proposes a kind of intelligent charging method and device; at first discern the maximum output current of charger; and then terminal (as handheld device) is provided with the charging current size according to this maximum output current; charging current is set charges; this charging current can not surpass the maximum output current of charger, thus the protection charger.
A kind of charging method is, when initial, use an initial charge current that terminal is charged, when the voltage of charger just often, then increase charging current, whether the voltage that detects charger again is normal, when charging current increases to the voltage of charger when undesired, it is normal to charger voltage to begin to reduce charging current, and this charging current is the maximum output current of charger, use this electric current that described terminal is charged, specifically comprise following steps:
The first step is provided with battery charge I
AdjBe minimum charge current I
Min, that is, earlier with I
MinTo battery charge.
Minimum charge current is the minimum charge current that terminal allows.Usually terminal has a minimum charge current and a maximum charging current, and generally by the charging circuit decision of terminal, maximum charging current is determined by terminal and battery minimum charge current jointly.In whole process, employed charging current all is not less than minimum charge current, is not more than maximum charging current.
In second step, whether normal, if charger voltage is normal, then changed for the 3rd step over to if detecting charger voltage; Otherwise changed for the 4th step over to.
Judge whether that normal foundation can be the charger voltage scope of stipulating in the national standard, it also can be the empirical value by a large amount of measurings in advance, whether the voltage that is charger is in the voltage range of predesignating, also the scope that can set according to the charger floating voltage.
The 3rd step, whether judge current charging current less than maximum charging current, if less than, increase charging current, suppose that current increment is Δ I, changed for second step over to; Otherwise, use maximum charging current to charge, flow process finishes.
In the 4th step, judge current charging current I
AdjWhether be I
Min, if think that then the output current of charger can't satisfy current charging demand, complete charge; If not, think that then charger can't bear I
AdjElectric current, but it can bear the charging current of low one-level, reduces charging current, is I
Adj-Δ I, this electric current are the maximum output current of charger, use the electric current that is not more than this maximum output current that terminal is charged.
Wherein, when the charging current of terminal is divided into a plurality of grade, increase charging current at every turn, increase to the charging current of a grade, if increase when afterwards charger voltage is undesired, the charging current of this grade before then increasing is a maximum output current.Δ I is the difference between each grade charging current.Certainly, when increasing charging current, also can increase to a certain grade, be not limited to a grade.
If the charging current that terminal can be supported is continuous, then Δ I can change as required, and when increasing charging current, its current increment Δ I can be identical or different at every turn, and the present invention does not limit this.
The intelligent charging method that the present invention proposes as shown in Figure 2, comprises following steps:
Step 201, handheld terminal detect charger and insert; Handheld terminal makes it with minimum charge current value I by the charging current administration module is set
MinTo battery charge, change step 202 over to;
Step 202, handheld terminal detects charger voltage by the charger voltage detection module, judges whether this voltage is lower than the scope of stipulating in the standard, and promptly 4.75 volts, if change step 206 over to; Otherwise, change step 203 over to;
Step 203 judges whether current charging current has reached the maximum charging current I that handheld device allowed
Max, if, change step 205, otherwise, step 204 changeed;
Step 204 continues to increase charging current, such as increasing Δ I, changes step 202 over to.
Step 205, then charger output current testing process finishes, and thinks that charger allows I
MaxElectric current output, it is I that charging current can be set
Max, finish.
Step 206, current charging current I
AdjWhether be minimum charge current I
Min, if, change step 207, otherwise, step 208 changeed;
Step 207 thinks that the output current of charger can't satisfy the demand of minimum charge current, no longer continues charging, charge closing function;
Step 208 thinks that charger can't export the electric current of current grade, reduces a current class and can accept, and is about to current charging current and reduces Δ I, with the current charges of low one-level.
Can also realize intelligent charge in the following manner, when initial, use an initial charge current that terminal is charged, detect charger voltage this moment, if the voltage of charger is undesired, then reduce charging current, whether the voltage that detects charger again is normal, the voltage that is decreased to charger when charging current just often, this charging current is a maximum output current.
As shown in Figure 3, it is the maximum charging current that terminal allows that initial charge current is set, and comprises:
The first step is provided with battery charge I
AdjBe maximum charging current I
Max, that is, earlier with I
MaxTo battery charge.
Described maximum charging current is the maximum charging current that terminal allows.
Whether in second step, it is normal to detect charger voltage, if charger voltage is normal, then current charging current is the maximum output current of charger, uses current electric current to battery charge, i.e. I
AdjOtherwise, changed for the 3rd step over to;
Judging whether normally according to being the charger voltage scope of stipulating in the national standard, also can be the empirical value by a large amount of measurings in advance, also the scope that can set according to the charger floating voltage.
In the 3rd step, judge whether current charging current is the minimum charge current of terminal, if think that then the output current of charger can't satisfy current charging demand, complete charge; If not, then reduce charging current, suppose that the electric current decrease is Δ I, changed for second step again over to.
Wherein, when the charging current of terminal is divided into a plurality of grade, charger voltage is undesired when using the charging current for charging of certain grade, and charger voltage is normal when being reduced to next grade, then the charging current of this next grade is a maximum output current, uses the electric current that is not more than this maximum output current that terminal is charged.Certainly, when reducing charging current, also can be reduced to a certain grade, be not limited to next grade.
If the charging current that terminal can be supported is continuous, then Δ I can change as required, and when reducing charging current, its electric current decrease Δ I can be identical or different at every turn, and the present invention does not limit this.
Also can realize intelligent charge by following steps, initial charge current is between the maximum charging current and minimum charge current of terminal permission, its flow process is above-mentioned two kinds comprehensive in fact, when using initial charge current charging charger voltage just often, its flow process and the flow process that begins to charge with minimum charge current are similar, and when charger voltage was undesired when using the initial charge current charging, its flow process and the flow process that begins to charge with maximum charging current were similar, as shown in Figure 4, specific as follows:
The first step is provided with initial charge current I
Start, it is between minimum charge current I
MinWith maximum charging current I
MaixBetween, that is, and I
Max＞I
Start＞I
Min
In second step, whether normal, if charger voltage is normal, then changed for the 3rd step over to if detecting charger voltage; Otherwise changed for the 4th step over to.
Judging whether normally according to being the charger voltage scope of stipulating in the national standard, also can be the empirical value by a large amount of measurings in advance, also the scope that can set according to the charger floating voltage.
The 3rd step, whether judge current charging current less than maximum charging current, if less than, increase charging current, suppose that current increment is Δ I, changed for second step over to; Otherwise, use maximum charging current to charge, flow process finishes.
In the 4th step, judge current charging current I
AdjSize:
If I
AdjEqual minimum charge current I
Min, think that then the output current of charger can't satisfy current charging demand, complete charge;
If I
AdjAt I
MinAnd I
StartBetween (comprise I
Start), then reduce charging current, suppose that the electric current decrease is Δ I, changes for the 5th step again over to;
If I
AdjBe higher than initial current I
Start, think that then charger can't bear I
AdjElectric current, but it can bear the charging current of low one-level, reduces charging current, is I
Adj-Δ I uses this charging current to charge, and flow process finishes;
Whether in the 5th step, it is normal to detect charger voltage, if charger voltage is normal, and current charging current I
AdjBe the maximum output current of charger, use this electric current to charge; Otherwise, changed for the 4th step over to.
Detection to the maximum output current of charger has some special cases, and such as using minimum charge current to terminal charge, the voltage at charger two ends is undesired, then need not detect the maximum output current of charger again, and this charger is unavailable, complete charge; Again such as the maximum charging current that uses terminal to allow to terminal charge, the voltage at charger two ends is normal, then the maximum output current of charger is the maximum charging current that terminal allows.
The present invention is not limited to said method to the detection of charger maximum output current, all can as long as can detect the method for maximum output current.In addition, during intelligent charge, also can not detect maximum output current, terminal can detect one and make and use the normal electric current of charger voltage this electric current to charge and get final product, and needn't carry out repeated detection; Detect the maximum output current of charger, the maximum current charging of using charger to support can improve charge efficiency.
Intelligent charger of the present invention is usually located on the handheld terminal as shown in Figure 1, and it comprises:
Maximum output current detection module: the maximum output current that is used to detect charger, when charger charges to terminal, detect the voltage of charger, the normal maximum charging current of the voltage of described charger is a maximum output current, this maximum output current detection module further comprises main control module, charger voltage detection module, charging current administration module and charging current detection module, wherein:
Other modules are managed and controlled to main control module, receives the testing result of charger voltage detection module, and indication charging current administration module is provided with charging current; Usually main control module is served as by the handheld terminal processor.
The charger voltage detection module is used for detecting the voltage V of charger
InWhether normal, and with testing result V
ChargeSend to main control module;
The charging current administration module is used for controlling each stage of battery charge, and can charging current be set according to the indication of main control module; When initial charge, an initial charge current is set;
The charging current detection module is used for detecting charging current, and with testing result I
ChargeThe notice main control module.
Wherein, the maximum output current that uses this device to detect charger has multiple mode, for example:
Main control module indication charging current administration module is provided with an initial charge current and charges, receive the voltage detecting result of charger voltage detection module, when described voltage detecting result be voltage just often, the indication that sends the increase charging current is to described charging current administration module, again receive the voltage detecting result of charger voltage detection module, continue indication charging current administration module according to this testing result and increase charging current, up to the voltage detecting result when being undesired, transmission reduces the indication of charging current to described charging current administration module, reduce the charging current of charging current to last grade, this moment, charging current was the maximum output current of charger.
Perhaps main control module indication charging current administration module is provided with an initial charge current and charges, when described voltage detecting result is that voltage is when undesired, transmission reduces the indication of charging current to described charging current administration module, for just often, this charging current is the maximum output current of charger up to the voltage detecting result.
Increase or when reducing charging current at every turn, increase or reduce a current value Δ I (when regulating charging current each time, Δ I can be identical, also can be different), when charging current is divided into a plurality of grade, increase at every turn or reduce charging current and be meant the charging current that increases or be reduced to adjacent rank, perhaps skip some grades, the present invention does not limit this.
Claims (10)
1, a kind of intelligent charging method is applied to charger to terminal charge, it is characterized in that, comprises:
Detect the maximum output current of charger: to terminal charge the time, detect the voltage at described charger two ends, detect and make that the normal maximum charging current of voltage of described charger is the maximum output current of described charger;
Use is not more than the charging current of this maximum output current to this terminal charge.
2, the method for claim 1 is characterized in that, the maximum output current of described detection charger comprises following steps:
When initial, use an initial charge current that terminal is charged, detect the voltage of charger, when the voltage of described charger just often, then increase charging current, whether the voltage that detects charger again is normal, when charging current increases to the voltage of charger when undesired, begin to reduce charging current to charger voltage just often, this charging current is the maximum output current of described charger.
3, the method for claim 1 is characterized in that, the maximum output current of described detection charger comprises following steps:
When initial, use an initial charge current that terminal is charged, when the voltage of described charger is undesired, then reduce charging current, whether the voltage that detects charger again is normal, the voltage that is decreased to charger when charging current just often, this charging current is the maximum output current of described charger.
4, as claim 1 or 2 or 3 described methods, it is characterized in that, when detecting the maximum output current of charger, the charging current that described terminal is charged is not less than the minimum charge current that described terminal allows, and is not more than the maximum charging current that described terminal allows.
5, as claim 2 or 3 described methods, it is characterized in that, described charging current is divided into a plurality of grades, reduce or when increasing charging current, be meant the charging current that is reduced to a certain grade under this grade, or increase to the charging current of a certain grade on this grade, charger voltage is undesired by normally becoming when the charging current from a grade reduces or increase to the charging current of its adjacent rank, or become normally by undesired, make that then the charging current of normal this grade of charger voltage is the maximum output current of described charger.
As claim 1 or 2 or 3 described methods, it is characterized in that 6, whether described charger voltage is meant normally whether the voltage of described charger is in the voltage range of predesignating, perhaps the scope of setting according to described charger floating voltage.
7, a kind of intelligent charger is applied to charger to terminal charge, it is characterized in that, comprises:
Maximum output current detection module: the maximum output current that is used to detect charger, when charger charges to terminal, detect the voltage of charger, detect and obtain making that the normal maximum charging current of voltage of described charger is the maximum output current of described charger.
8, intelligent charger as claimed in claim 7 is characterized in that, described maximum output current detection module further comprises:
Other modules are managed and controlled to main control module, receives the testing result of charger voltage detection module, and indication charging current administration module is provided with charging current;
The charger voltage detection module, whether normal, send the voltage detecting result to main control module if being used to detect charger voltage;
The charging current administration module is used for the indication according to main control module, and charging current is set;
The charging current detection module is used to detect charging current, and with current detecting result notification main control module.
9, intelligent charger as claimed in claim 8 is characterized in that,
Described main control module, be used to indicate the charging current detection module that one initial charge current is set, main control module receives the voltage detecting result of charger voltage detection module, when described voltage detecting result be voltage just often, the indication that sends the increase charging current is to described charging current administration module, again receive the voltage detecting result of charger voltage detection module, continue indication charging current administration module according to this testing result and increase charging current, up to the voltage detecting result when being undesired, transmission reduces the indication of charging current to described charging current administration module, reduce the charging current of charging current to last grade, this moment, charging current was the maximum output current of charger.
10, intelligent charger as claimed in claim 8 is characterized in that,
Described main control module, be used to indicate the charging current detection module that one initial charge current is set, main control module receives the voltage detecting result of charger voltage detection module, when described voltage detecting result is that voltage is when undesired, transmission reduces the indication of charging current to described charging current administration module, for just often, this charging current is the maximum output current of charger up to the voltage detecting result.
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|---|---|---|---|
| CN2008101460505A CN101340011B (en) | 2008-08-07 | 2008-08-07 | Intelligent charging method and apparatus |
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|---|---|---|---|
| CN2008101460505A CN101340011B (en) | 2008-08-07 | 2008-08-07 | Intelligent charging method and apparatus |
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| CN101340011B CN101340011B (en) | 2010-12-08 |
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-
2008
- 2008-08-07 CN CN2008101460505A patent/CN101340011B/en not_active Expired - Fee Related
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