CN103378378A - Charging method and charging device - Google Patents
Charging method and charging device Download PDFInfo
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- CN103378378A CN103378378A CN2012101331680A CN201210133168A CN103378378A CN 103378378 A CN103378378 A CN 103378378A CN 2012101331680 A CN2012101331680 A CN 2012101331680A CN 201210133168 A CN201210133168 A CN 201210133168A CN 103378378 A CN103378378 A CN 103378378A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a charging method and a charging device. The method is applied to a charging unit, which is connected with a power supply unit and is capable of outputting different current. The method comprises the following steps of: performing trial charging on a battery with preset initial output current; judging whether output voltage meets preset conditions to obtain a first judging result, wherein the preset conditions at least comprise that the output voltage is greater than preset voltage which is minimum voltage capable of charging the battery; and when the first judging result indicates that the output voltage does not meet the preset conditions, adjusting the output current of the charging unit so as to enable the output voltage to meet the preset conditions. With the method and the device, the output current of the charging unit can be adjusted according to different rated power and different types of power supplies, and thus the charging efficiency is improved under the precondition that normal charging can be ensured.
Description
Technical field
The present invention relates to the circuit control field, particularly relate to a kind of charging method and device.
Background technology
The kind of electronic equipment at present is more and more abundanter.As everyone knows, the normal operation of electronic equipment be unable to do without the support of power supply.Especially some miniaturized electronicss adopt powered battery usually.
In the prior art, different electronic equipments may have different charging platforms.Charging platform generally includes power supply, charging wire and charhing unit (also being charger).Because the battery performance of different electronic equipments may be different, power also may be different, so the output current of charhing unit is not identical yet.This causes for every kind of electronic equipment, and the user needs to use respectively the charging platform corresponding with this equipment to charge.When the electronic equipment kind that has as the user is more, be a very loaded down with trivial details job for the management of various charging platforms.
In the prior art, also have a kind of charging method, for the power supply of different capacity, adopt fixing output current to charge at the charhing unit place.There is distinct disadvantage in said method: when the rated power of power supply is larger, when larger actual charge current can be provided, use the method to cause the charging interval to prolong with the fixedly output current charging of less, charge efficiency is low; When the rated power of power supply is less, when the actual charge current of less can only be provided, use the method to cause the power supply overload with relatively large fixedly output current charging, can't charge normal.
Summary of the invention
The purpose of this invention is to provide a kind of charging method and device, can regulate the output current of charhing unit according to the rated power of power supply and the difference of type, under the prerequisite that guarantees to charge normal, improve charge efficiency.
For achieving the above object, the invention provides following scheme:
A kind of charging method is applied to charhing unit, and described charhing unit links to each other with power subsystem, and described charhing unit can be exported different electric currents, and described method comprises:
Adopting predefined initial output current is that battery carries out trial charging;
It is pre-conditioned to judge whether output voltage satisfies, and obtains the first judged result, wherein, describedly pre-conditionedly comprises at least described output voltage greater than predeterminated voltage, and wherein, described predeterminated voltage is can be to the minimum voltage of battery charging;
To represent that described output voltage does not satisfy described when pre-conditioned when described the first judged result, regulates the output current of described charhing unit, so that described output voltage satisfies is described pre-conditioned.
Optionally, when described initial output current was non-minimum value in the described different electric current, the output current of the described charhing unit of described adjusting comprised:
Reduce the output current of described charhing unit;
Judge that the current charging voltage of described charhing unit whether greater than predeterminated voltage, obtains the second judged result;
The current charging voltage that represents described charhing unit when described the second judged result is carried out the step of the output current that reduces described charhing unit, again until the current charging voltage of described charhing unit is greater than predeterminated voltage during less than predeterminated voltage.
Optionally, when described initial output current was non-maximum in the described different electric current, the output current of the described charhing unit of described adjusting comprised:
Increase the output current of described charhing unit;
Judge that the current charging voltage of described charhing unit whether less than predeterminated voltage, obtains the 3rd judged result;
The current charging voltage that represents described charhing unit when described the 3rd judged result is carried out the step of the output current that increases described charhing unit, again until the current charging voltage of described charhing unit is less than predeterminated voltage during greater than predeterminated voltage;
Adopt the last output current output current before that increases described charhing unit, as charging current.
Optionally, regulate the output current of described charhing unit so that described output voltage satisfy described pre-conditioned after, also comprise:
When the electric weight of described battery during less than first threshold, adopt current constant mode that battery is charged;
When the electric weight of described battery during greater than first threshold and less than Second Threshold, adopt the constant voltage mode that battery is charged;
When the electric weight of described battery during greater than Second Threshold, adopt little current system that battery is charged.
Optionally, also comprise:
When the output current of described charhing unit is minimum value in the described multiple different output current, and the current charging voltage of described charhing unit stops battery being charged during less than predeterminated voltage.
Optionally, also comprise:
Determine the type of described power subsystem; Described power supply type comprises USB type and type of adapter at least;
The predefined initial output current of described employing is that battery carries out trial charging and comprises:
According to the type of described power subsystem, the initial output current that adopts the type matching of predefined and described power subsystem is that battery carries out trial charging.
A kind of charging device, described charging device links to each other with power subsystem, and described battery charger can be exported different electric currents, and described battery charger comprises:
The trial charging unit, being used for adopting predefined initial output current is that battery carries out trial charging;
The first judging unit, it is pre-conditioned to be used for judging whether output voltage satisfies, and obtains the first judged result, wherein, describedly pre-conditionedly comprises at least described output voltage greater than predeterminated voltage, and wherein, described predeterminated voltage is the minimum voltage that can charge to battery;
The output current regulon is used for that to represent that described output voltage does not satisfy described when pre-conditioned when described the first judged result, regulates the output current adjusting of described charhing unit, so that described output voltage satisfies is described pre-conditioned.
Optionally, described output current regulon comprises:
Output current reduces subelement, is used for reducing the output current of described charging device when described initial output current is the non-minimum value of described different electric current;
The second judgment sub-unit, whether the current charging voltage that is used for judging described charging device obtains second judged result greater than predeterminated voltage;
The first control subelement, the current charging voltage that is used for representing described charging device when described the second judged result is during less than predeterminated voltage, control described output current and reduce the step that subelement is carried out the output current that reduces described charging device again, until the current charging voltage of described charging device is greater than predeterminated voltage.
Optionally, described output current regulon comprises:
Output current increases subelement, is used for increasing the output current of described charging device when described initial output current is the non-maximum of described different electric current;
The 3rd judgment sub-unit, whether the current charging voltage that is used for judging described charging device obtains three judged result less than predeterminated voltage;
The second control subelement, the current charging voltage that is used for representing described charging device when described the 3rd judged result is during greater than predeterminated voltage, control described output current and increase the step that subelement is carried out the output current that increases described charging device again, until the current charging voltage of described charging device is less than predeterminated voltage;
Charging current is determined subelement, is used for adopting the last output current output current before that increases described charging device, as charging current.
Optionally, described device also comprises:
The constant current charge unit, when being used for electric weight when described battery less than first threshold, the employing current constant mode charges to battery;
The constant voltage charge unit, when being used for electric weight when described battery greater than first threshold and less than Second Threshold, employing constant voltage mode is charged to battery;
The trickle charge unit when being used for electric weight when described battery greater than Second Threshold, adopts little current system that battery is charged.
Optionally, described device also comprises:
The charging stop control unit is used for output current when described charhing unit and is the minimum value of described different electric current, and the current charging voltage of described charhing unit stops battery being charged during less than predeterminated voltage.
Optionally, described device also comprises:
The power supply type determining unit is for the type of determining described power subsystem; Described power supply type comprises USB type and type of adapter at least;
Described trial charging unit comprises:
The trial charging subelement is used for the type according to described power subsystem, and the initial output current that adopts the type matching of predefined and described power subsystem is that battery carries out trial charging.
According to specific embodiment provided by the invention, the invention discloses following technique effect:
Charging method of the present invention and device, pre-conditioned by judging whether output voltage satisfies, to represent that described output voltage does not satisfy described when pre-conditioned when described the first judged result, regulate the output current of described charhing unit, so that described output voltage satisfies is described pre-conditioned, can regulate the output current of charhing unit according to the difference of the rated power of power supply, under the prerequisite that guarantees to charge normal, improve charge efficiency.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use among the embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of charging method embodiment 1 of the present invention;
Fig. 2 is the flow chart of charging method embodiment 2 of the present invention;
Fig. 3 is the flow chart of charging method embodiment 3 of the present invention;
Fig. 4 is the flow chart of charging method embodiment 4 of the present invention;
Fig. 5 is the structure chart of charging device embodiment 1 of the present invention;
Fig. 6 is the structure chart of a kind of execution mode of described output current regulon 503;
Fig. 7 is the structure chart of the another kind of execution mode of described output current regulon 503;
Fig. 8 is the structure chart of charging device embodiment 2 of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Charging method of the present invention is applied to charhing unit.Described charhing unit links to each other with power subsystem, and described charhing unit can be exported different electric currents.Concrete, described charhing unit can directly link to each other with power subsystem, also can link to each other with power subsystem by charging wire or data wire.Described power subsystem can be the adapter with transformation function, also can be USB interface etc.The output current scope of described charhing unit can be 100mA～1A.
Fig. 1 is the flow chart of charging method embodiment 1 of the present invention.As shown in Figure 1, described method comprises:
Step 101: adopting predefined initial output current is that battery carries out trial charging;
The current value of initial output current can be the arbitrary value in the output current scope of charhing unit.
Step 102: it is pre-conditioned to judge whether output voltage satisfies, and obtains the first judged result, wherein, describedly pre-conditionedly comprises at least described output voltage greater than predeterminated voltage, and wherein, described predeterminated voltage is can be to the minimum voltage of battery charging;
Usually, when battery is charged, require predeterminated voltage greater than a certain numerical value (for example 4.65V), can charge normal.The power output of power subsystem is normally constant, by physical theorem as can be known, and power=voltage * electric current.Like this, when adopting initial output current to carry out trial charging, actual output voltage is exactly a determined value.When described output voltage during greater than predeterminated voltage, expression adopts current output current to charge to battery.
Need to prove that described pre-conditioned can also comprising, current charging current is the larger charging current when satisfying described output voltage greater than predeterminated voltage.Can improve charge efficiency like this.Certainly, pre-conditioned can also the setting from other angles enumerated no longer one by one at this.
Step 103: to represent that described output voltage does not satisfy described when pre-conditioned when described the first judged result, regulates the output current of described charhing unit, so that described output voltage satisfies is described pre-conditioned.
When described pre-conditioned when including only described output voltage greater than predeterminated voltage, regulate the output current of described charhing unit, so that described output voltage gets final product greater than predeterminated voltage.
Concrete, when described initial output current is non-minimum value in the described different electric current, can reduce the output current of described charhing unit; Owing to have inverse relation between electric current and the voltage, can be that charging voltage increases so reduce output current.
Judge that the current charging voltage of described charhing unit whether greater than predeterminated voltage, obtains the second judged result;
The current charging voltage that represents described charhing unit when described the second judged result is carried out the step of the output current that reduces described charhing unit, again until the current charging voltage of described charhing unit is greater than predeterminated voltage during less than predeterminated voltage.
Need to prove, when output current is adjusted to minimum value in the output current scope of charhing unit, if charging voltage, can stop charging so still less than predeterminated voltage.
When described initial output current is non-maximum in the described different electric current, can increase the output current of described charhing unit;
Judge that the current charging voltage of described charhing unit whether less than predeterminated voltage, obtains the 3rd judged result;
The current charging voltage that represents described charhing unit when described the 3rd judged result is carried out the step of the output current that increases described charhing unit, again until the current charging voltage of described charhing unit is less than predeterminated voltage during greater than predeterminated voltage;
Adopt the last output current output current before that increases described charhing unit, as charging current.
As seen, adopt the charging method of present embodiment, pre-conditioned by judging whether output voltage satisfies, to represent that described output voltage does not satisfy described when pre-conditioned when described the first judged result, regulate the output current of described charhing unit, so that described output voltage satisfies is described pre-conditioned, can regulate the output current of charhing unit according to the difference of the rated power of power supply, under the prerequisite that guarantees to charge normal, improve charge efficiency.
Fig. 2 is the flow chart of charging method embodiment 2 of the present invention.As shown in Figure 2, described method comprises:
Step 201: adopting predefined initial output current is that battery carries out trial charging;
Step 202: it is pre-conditioned to judge whether output voltage satisfies, and obtains the first judged result, wherein, describedly pre-conditionedly comprises at least described output voltage greater than predeterminated voltage, and wherein, described predeterminated voltage is can be to the minimum voltage of battery charging;
Step 203: when described the first judged result represents described output voltage not satisfy described pre-conditioned and described initial output current be non-minimum value in the described different electric current, reduce the output current of described charhing unit;
Step 204: judge that the current charging voltage of described charhing unit whether greater than predeterminated voltage, obtains the second judged result;
Step 205: the current charging voltage that represents described charhing unit when described the second judged result is carried out the step of the output current that reduces described charhing unit, again until the current charging voltage of described charhing unit is greater than predeterminated voltage during less than predeterminated voltage.
Step 206: when the output current of described charhing unit is minimum value in the described multiple different output current, and the current charging voltage of described charhing unit stops battery being charged during less than predeterminated voltage.
Fig. 3 is the flow chart of charging method embodiment 3 of the present invention.As shown in Figure 3, described method comprises:
Step 301: adopting predefined initial output current is that battery carries out trial charging;
Step 302: it is pre-conditioned to judge whether output voltage satisfies, and obtains the first judged result, wherein, describedly pre-conditionedly comprises at least described output voltage greater than predeterminated voltage, and wherein, described predeterminated voltage is can be to the minimum voltage of battery charging;
Step 303: when described the first judged result represents described output voltage not satisfy described pre-conditioned and described initial output current be non-maximum in the described different electric current, increase the output current of described charhing unit;
Step 304: judge that the current charging voltage of described charhing unit whether less than predeterminated voltage, obtains the 3rd judged result;
Step 305: the current charging voltage that represents described charhing unit when described the 3rd judged result is carried out the step of the output current that increases described charhing unit, again until the current charging voltage of described charhing unit is less than predeterminated voltage during greater than predeterminated voltage;
Adopt the last output current output current before that increases described charhing unit, as charging current;
Step 306: when the electric weight of described battery during less than first threshold, adopt current constant mode that battery is charged;
Current constant mode is a kind of large current charge mode.Current constant mode can adopt the charging current of determining in the step 305.
Step 307: when the electric weight of described battery during greater than first threshold and less than Second Threshold, adopt the constant voltage mode that battery is charged;
When battery electric quantity reaches certain proportion, adopt constant voltage charge, the charging current of this moment is about 2/3rds of constant current charge mode.
Step 308: when the electric weight of described battery during greater than Second Threshold, adopt little current system that battery is charged.
The low current charge mode also claims trickle charge.Can adopt the little electric current between the 30-130mA that battery is charged.
Charging method in the present embodiment by step 306-308, can prolong the useful life of battery, slows down the attenuation degree of battery electric quantity.And among the arbitrary embodiment among the application, the method that all can adopt step 306-308 is the battery charging.
Fig. 4 is the flow chart of charging method embodiment 4 of the present invention.As shown in Figure 4, described method comprises:
Step 401: the type of determining described power subsystem; Described power supply type comprises USB type and type of adapter at least;
Concrete, for the power subsystem of USB type and type of adapter, can adopt following manner to distinguish.Usually, link to each other by interface between charhing unit and the power subsystem.Usually has multiple signals (comprising the signal of telecommunication and data-signal) path in the described interface.For the power subsystem of USB type (for example charhing unit links to each other with USB interface on the computer), has voltage difference between two data signal path of described interface, and for the power subsystem of type of adapter, then do not have voltage difference between two data signal path of described interface.Therefore, can detect by whether having voltage difference between two data signal path to the interface between charhing unit and the power subsystem, and then judge the type of power subsystem.
Step 402: according to the type of described power subsystem, the initial output current that adopts the type matching of predefined and described power subsystem is that battery carries out trial charging.
For the power subsystem of type of adapter, because the power of the power subsystem of the type is usually larger, therefore, can adopting, the initial output current of large (for example 1A) is that battery carries out trial charging.
For the power subsystem of USB type, because the power of the power subsystem of the type is usually less, therefore, can adopt less initial output current is that battery carries out trial charging.In addition, the power subsystem of USB type can also be subdivided into USB2.0 and USB3.0 two classes.Wherein the type of USB3.0 can provide larger output current, is about 500mA.So, in the present embodiment, after detecting power subsystem and being the USB type, initial output current can be made as 500mA.If charging voltage is lower than predeterminated voltage, reduce again output current.
Step 403: it is pre-conditioned to judge whether output voltage satisfies, and obtains the first judged result, wherein, describedly pre-conditionedly comprises at least described output voltage greater than predeterminated voltage, and wherein, described predeterminated voltage is can be to the minimum voltage of battery charging;
Step 404: to represent that described output voltage does not satisfy described when pre-conditioned when described the first judged result, regulates the output current of described charhing unit, so that described output voltage satisfies is described pre-conditioned.
The charging method of present embodiment can be distinguished the type of charhing unit, according to the difference of the type of power supply the output current of charhing unit is regulated, and under the prerequisite that guarantees to charge normal, improves charge efficiency.
The invention also discloses a kind of charging device.Described charging device links to each other with power subsystem, and described battery charger can be exported different electric currents.
Fig. 5 is the structure chart of charging device embodiment 1 of the present invention.As shown in Figure 5, described device comprises:
The first judging unit 502, it is pre-conditioned to be used for judging whether output voltage satisfies, and obtains the first judged result, wherein, describedly pre-conditionedly comprise at least described output voltage greater than predeterminated voltage, wherein, described predeterminated voltage is can be to the minimum voltage of battery charging;
Output current regulon 503 is used for that to represent that described output voltage does not satisfy described when pre-conditioned when described the first judged result, regulates the output current adjusting of described charhing unit, so that described output voltage satisfies is described pre-conditioned.
Adopt the charging device of present embodiment, pre-conditioned by judging whether output voltage satisfies, to represent that described output voltage does not satisfy described when pre-conditioned when described the first judged result, regulate the output current of described charhing unit, so that described output voltage satisfies is described pre-conditioned, can regulate the output current of charhing unit according to the difference of the rated power of power supply, under the prerequisite that guarantees to charge normal, improve charge efficiency.
Fig. 6 is the structure chart of a kind of execution mode of described output current regulon 503.As shown in Figure 6, described output current regulon 503 can comprise:
Output current reduces subelement 601, is used for reducing the output current of described charging device when described initial output current is the non-minimum value of described different electric current;
The second judgment sub-unit 602, whether the current charging voltage that is used for judging described charging device obtains second judged result greater than predeterminated voltage;
The first control subelement 603, the current charging voltage that is used for representing described charging device when described the second judged result is during less than predeterminated voltage, control described output current and reduce the step that subelement is carried out the output current that reduces described charging device again, until the current charging voltage of described charging device is greater than predeterminated voltage.
Fig. 7 is the structure chart of the another kind of execution mode of described output current regulon 503.As shown in Figure 7, described output current regulon 503 can comprise:
Output current increases subelement 701, is used for increasing the output current of described charging device when described initial output current is the non-maximum of described different electric current;
The 3rd judgment sub-unit 702, whether the current charging voltage that is used for judging described charging device obtains three judged result less than predeterminated voltage;
The second control subelement 703, the current charging voltage that is used for representing described charging device when described the 3rd judged result is during greater than predeterminated voltage, control described output current and increase the step that subelement is carried out the output current that increases described charging device again, until the current charging voltage of described charging device is less than predeterminated voltage;
Charging current is determined subelement 704, is used for adopting the last output current output current before that increases described charging device, as charging current.
Fig. 8 is the structure chart of charging device embodiment 2 of the present invention.As shown in Figure 8, described device comprises:
The first judging unit 502, it is pre-conditioned to be used for judging whether output voltage satisfies, and obtains the first judged result, wherein, describedly pre-conditionedly comprise at least described output voltage greater than predeterminated voltage, wherein, described predeterminated voltage is can be to the minimum voltage of battery charging;
Output current regulon 503 is used for that to represent that described output voltage does not satisfy described when pre-conditioned when described the first judged result, regulates the output current adjusting of described charhing unit, so that described output voltage satisfies is described pre-conditioned.
Also comprise:
Constant current charge unit 801, when being used for electric weight when described battery less than first threshold, the employing current constant mode charges to battery;
Constant voltage charge unit 802, when being used for electric weight when described battery greater than first threshold and less than Second Threshold, employing constant voltage mode is charged to battery;
In addition, in the practical application, described device can also comprise:
The charging stop control unit is used for output current when described charhing unit and is the minimum value of described different electric current, and the current charging voltage of described charhing unit stops battery being charged during less than predeterminated voltage.
Described device can also comprise: the power supply type determining unit, for the type of determining described power subsystem; Described power supply type comprises USB type and type of adapter at least;
Accordingly, described trial charging unit can comprise:
The trial charging subelement is used for the type according to described power subsystem, and the initial output current that adopts the type matching of predefined and described power subsystem is that battery carries out trial charging.
In sum, the application's charging device can be regulated the output current of charhing unit according to the rated power of power supply and the difference of type, under the prerequisite that guarantees to charge normal, improves charge efficiency.
At last, also need to prove, in this article, relational terms such as the first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint and have the relation of any this reality or sequentially between these entities or the operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby not only comprise those key elements so that comprise process, method, article or the equipment of a series of key elements, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, article or equipment.Do not having in the situation of more restrictions, the key element that is limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential hardware platform, can certainly all implement by hardware, but the former is better execution mode in a lot of situation.Based on such understanding, technical scheme of the present invention is to can embodying with the form of software product in whole or in part that background technology contributes, this computer software product can be stored in the storage medium, such as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the disclosed method of embodiment, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
Used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications.In sum, this description should not be construed as limitation of the present invention.
Claims (12)
1. a charging method is characterized in that, is applied to charhing unit, and described charhing unit links to each other with power subsystem, and described charhing unit can be exported different electric currents, and described method comprises:
Adopting predefined initial output current is that battery carries out trial charging;
It is pre-conditioned to judge whether output voltage satisfies, and obtains the first judged result, wherein, describedly pre-conditionedly comprises at least described output voltage greater than predeterminated voltage, and wherein, described predeterminated voltage is can be to the minimum voltage of battery charging;
To represent that described output voltage does not satisfy described when pre-conditioned when described the first judged result, regulates the output current of described charhing unit, so that described output voltage satisfies is described pre-conditioned.
2. method according to claim 1 is characterized in that, when described initial output current was non-minimum value in the described different electric current, the output current of the described charhing unit of described adjusting comprised:
Reduce the output current of described charhing unit;
Judge that the current charging voltage of described charhing unit whether greater than predeterminated voltage, obtains the second judged result;
The current charging voltage that represents described charhing unit when described the second judged result is carried out the step of the output current that reduces described charhing unit, again until the current charging voltage of described charhing unit is greater than predeterminated voltage during less than predeterminated voltage.
3. method according to claim 1 is characterized in that, when described initial output current was non-maximum in the described different electric current, the output current of the described charhing unit of described adjusting comprised:
Increase the output current of described charhing unit;
Judge that the current charging voltage of described charhing unit whether less than predeterminated voltage, obtains the 3rd judged result;
The current charging voltage that represents described charhing unit when described the 3rd judged result is carried out the step of the output current that increases described charhing unit, again until the current charging voltage of described charhing unit is less than predeterminated voltage during greater than predeterminated voltage;
Adopt the last output current output current before that increases described charhing unit, as charging current.
4. each described method is characterized in that according to claim 1-3, regulates the output current of described charhing unit so that described output voltage satisfy described pre-conditioned after, also comprise:
When the electric weight of described battery during less than first threshold, adopt current constant mode that battery is charged;
When the electric weight of described battery during greater than first threshold and less than Second Threshold, adopt the constant voltage mode that battery is charged;
When the electric weight of described battery during greater than Second Threshold, adopt little current system that battery is charged.
5. each described method is characterized in that according to claim 1-3, also comprises:
When the output current of described charhing unit is minimum value in the described multiple different output current, and the current charging voltage of described charhing unit stops battery being charged during less than predeterminated voltage.
6. each described method is characterized in that according to claim 1-3, also comprises:
Determine the type of described power subsystem; Described power supply type comprises USB type and type of adapter at least;
The predefined initial output current of described employing is that battery carries out trial charging and comprises:
According to the type of described power subsystem, the initial output current that adopts the type matching of predefined and described power subsystem is that battery carries out trial charging.
7. a charging device is characterized in that, described charging device links to each other with power subsystem, and described battery charger can be exported different electric currents, and described battery charger comprises:
The trial charging unit, being used for adopting predefined initial output current is that battery carries out trial charging;
The first judging unit, it is pre-conditioned to be used for judging whether output voltage satisfies, and obtains the first judged result, wherein, describedly pre-conditionedly comprises at least described output voltage greater than predeterminated voltage, and wherein, described predeterminated voltage is the minimum voltage that can charge to battery;
The output current regulon is used for that to represent that described output voltage does not satisfy described when pre-conditioned when described the first judged result, regulates the output current adjusting of described charhing unit, so that described output voltage satisfies is described pre-conditioned.
8. device according to claim 7 is characterized in that, described output current regulon comprises:
Output current reduces subelement, is used for reducing the output current of described charging device when described initial output current is the non-minimum value of described different electric current;
The second judgment sub-unit, whether the current charging voltage that is used for judging described charging device obtains second judged result greater than predeterminated voltage;
The first control subelement, the current charging voltage that is used for representing described charging device when described the second judged result is during less than predeterminated voltage, control described output current and reduce the step that subelement is carried out the output current that reduces described charging device again, until the current charging voltage of described charging device is greater than predeterminated voltage.
9. device according to claim 7 is characterized in that, described output current regulon comprises:
Output current increases subelement, is used for increasing the output current of described charging device when described initial output current is the non-maximum of described different electric current;
The 3rd judgment sub-unit, whether the current charging voltage that is used for judging described charging device obtains three judged result less than predeterminated voltage;
The second control subelement, the current charging voltage that is used for representing described charging device when described the 3rd judged result is during greater than predeterminated voltage, control described output current and increase the step that subelement is carried out the output current that increases described charging device again, until the current charging voltage of described charging device is less than predeterminated voltage;
Charging current is determined subelement, is used for adopting the last output current output current before that increases described charging device, as charging current.
10. each described device is characterized in that according to claim 7-9, and described device also comprises:
The constant current charge unit, when being used for electric weight when described battery less than first threshold, the employing current constant mode charges to battery;
The constant voltage charge unit, when being used for electric weight when described battery greater than first threshold and less than Second Threshold, employing constant voltage mode is charged to battery;
The trickle charge unit when being used for electric weight when described battery greater than Second Threshold, adopts little current system that battery is charged.
11. each described device is characterized in that according to claim 7-9, described device also comprises:
The charging stop control unit is used for output current when described charhing unit and is the minimum value of described different electric current, and the current charging voltage of described charhing unit stops battery being charged during less than predeterminated voltage.
12. each described device is characterized in that according to claim 7-9, described device also comprises:
The power supply type determining unit is for the type of determining described power subsystem; Described power supply type comprises USB type and type of adapter at least;
Described trial charging unit comprises:
The trial charging subelement is used for the type according to described power subsystem, and the initial output current that adopts the type matching of predefined and described power subsystem is that battery carries out trial charging.
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