CN103378378B - A kind of charging method and device - Google Patents
A kind of charging method and device Download PDFInfo
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- CN103378378B CN103378378B CN201210133168.0A CN201210133168A CN103378378B CN 103378378 B CN103378378 B CN 103378378B CN 201210133168 A CN201210133168 A CN 201210133168A CN 103378378 B CN103378378 B CN 103378378B
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- 230000001143 conditioned effect Effects 0.000 claims abstract description 43
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention discloses a kind of charging method and device.Described method is applied to charhing unit, and described charhing unit is connected with power subsystem, and described charhing unit can export different electric currents, and described method comprises: adopt the initial output current preset to be that battery carries out trial charging; Judge whether output voltage meets pre-conditioned, obtain the first judged result, wherein, describedly pre-conditionedly at least comprise described output voltage and be greater than predeterminated voltage, wherein, described predeterminated voltage is can to the minimum voltage of battery charging; When described first judged result represent described output voltage do not meet described pre-conditioned time, regulate the output current of described charhing unit, described output voltage met described pre-conditioned.Adopt method of the present invention and device, can regulate according to the output current of difference to charhing unit of the rated power of power supply and type, under the prerequisite guaranteeing to charge normal, improve charge efficiency.
Description
Technical field
The present invention relates to field of circuit control, particularly relate to a kind of charging method and device.
Background technology
The kind of electronic equipment is at present more and more abundanter.As everyone knows, the normal work of electronic equipment be unable to do without the support of power supply.Especially some miniaturized electronicss, adopt powered battery usually.
In prior art, different electronic equipments may have different charging platforms.Charging platform generally includes power supply, charging wire and charhing unit (being also 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 often kind of electronic equipment, and user needs to use the charging platform corresponding with this equipment to charge respectively.When the electronic equipment kind that user has is more, the management for various charging platform is a very loaded down with trivial details job.
In prior art, also have a kind of charging method, for the power supply of different capacity, adopt at charhing unit place fixing output current to charge.There is distinct disadvantage in said method: when the rated power of power supply is comparatively large, when can provide larger actual charge current, use the method to charge with relatively little fixing output current, cause the charging interval to extend, charge efficiency is low; When the rated power of power supply is less, when relatively little actual charge current can only be provided, use the method by with relatively large fixing output current charging, cause power overload situation, cannot charge normal.
Summary of the invention
The object of this invention is to provide a kind of charging method and device, can regulate according to the output current of difference to charhing unit of the rated power of power supply and type, under the prerequisite guaranteeing to charge normal, improve charge efficiency.
For achieving the above object, the invention provides following scheme:
A kind of charging method, be applied to charhing unit, described charhing unit is connected with power subsystem, and described charhing unit can export different electric currents, and described method comprises :+
The initial output current preset is adopted to be that battery carries out trial charging;
Judge whether output voltage meets pre-conditioned, obtain the first judged result, wherein, describedly pre-conditionedly at least comprise described output voltage and be greater than predeterminated voltage, wherein, described predeterminated voltage is can to the minimum voltage of battery charging;
When described first judged result represent described output voltage do not meet described pre-conditioned time, regulate the output current of described charhing unit, described output voltage met described pre-conditioned.
Optionally, when described initial output current is the non-minimum value in described different electric current, the output current of the described charhing unit of described adjustment, comprising:
Reduce the output current of described charhing unit;
Judge whether the current output voltage of described charhing unit is greater than predeterminated voltage, obtains the second judged result;
When described second judged result represents that the current output voltage of described charhing unit is less than predeterminated voltage, again perform the step of the output current reducing described charhing unit, until the current output voltage of described charhing unit is greater than predeterminated voltage.
Optionally, when described initial output current is the non-maximum in described different electric current, the output current of the described charhing unit of described adjustment, comprising:
Increase the output current of described charhing unit;
Judge whether the current output voltage of described charhing unit is less than predeterminated voltage, obtain the 3rd judged result;
When described 3rd judged result represents that the current output voltage of described charhing unit is greater than predeterminated voltage, again perform the step of the output current increasing described charhing unit, until the current output voltage of described charhing unit is less than predeterminated voltage;
Adopt the output current before the last output current increasing described charhing unit, as charging current.
Optionally, regulate the output current of described charhing unit, make described output voltage meet described pre-conditioned after, also comprise:
When the electricity of described battery is less than first threshold, current constant mode is adopted to charge to battery;
When the electricity of described battery is greater than first threshold and is less than Second Threshold, constant voltage mode is adopted to charge to battery;
When the electricity of described battery is greater than Second Threshold, small area analysis mode is adopted to charge to battery.
Optionally, also comprise:
When the output current of described charhing unit is the minimum value in described multiple different output current, and when the current output voltage of described charhing unit is less than predeterminated voltage, stop charging to battery.
Optionally, also comprise:
Determine the type of described power subsystem; Described power supply type at least comprises USB type and type of adapter;
The initial output current that described employing presets is that battery carries out trial charging and comprises:
According to the type of described power subsystem, what employing preset is that battery carries out trial charging with the initial output current of the type matching of described power subsystem.
A kind of charging device, described charging device is connected with power subsystem, and described battery charger can export different electric currents, and described battery charger comprises:
Trial charging unit is that battery carries out trial charging for adopting the initial output current preset;
First judging unit, pre-conditioned for judging whether output voltage meets, obtain the first judged result, wherein, describedly pre-conditionedly at least comprise described output voltage and be greater than predeterminated voltage, wherein, described predeterminated voltage is can to the minimum voltage of battery charging;
Output current regulon, for represent when described first judged result described output voltage do not meet described pre-conditioned time, regulate the output current of described charhing unit to regulate, described output voltage met described pre-conditioned.
Optionally, described output current regulon comprises:
Output current reduces subelement, for when described initial output current is the non-minimum value in described different electric current, reduces the output current of described charging device;
Second judgment sub-unit, for judging whether the current output voltage of described charging device is greater than predeterminated voltage, obtains the second judged result;
First controls subelement, for when described second judged result represents that the current output voltage of described charging device is less than predeterminated voltage, control described output current and reduce the step that subelement performs the output current reducing described charging device again, until the current output voltage of described charging device is greater than predeterminated voltage.
Optionally, described output current regulon comprises:
Output current increases subelement, for when described initial output current is the non-maximum in described different electric current, increases the output current of described charging device;
3rd judgment sub-unit, for judging whether the current output voltage of described charging device is less than predeterminated voltage, obtains the 3rd judged result;
Second controls subelement, for when described 3rd judged result represents that the current output voltage of described charging device is greater than predeterminated voltage, control described output current and increase the step that subelement performs the output current increasing described charging device again, until the current output voltage of described charging device is less than predeterminated voltage;
Charging current determination subelement, for adopting the output current before the last output current increasing described charging device, as charging current.
Optionally, described device also comprises:
Constant current charge unit, for when the electricity of described battery is less than first threshold, adopts current constant mode to charge to battery;
Constant voltage charge unit, for when the electricity of described battery is greater than first threshold and is less than Second Threshold, adopts constant voltage mode to charge to battery;
Trickle charge unit, for when the electricity of described battery is greater than Second Threshold, adopts small area analysis mode to charge to battery.
Optionally, described device also comprises:
Charging stop control unit, for being the minimum value in described different electric current when the output current of described charhing unit, and when the current output voltage of described charhing unit is less than predeterminated voltage, stops charging to battery.
Optionally, described device also comprises:
Power supply type determining unit, for determining the type of described power subsystem; Described power supply type at least comprises USB type and type of adapter;
Described trial charging unit comprises:
Trial charging subelement, for the type according to described power subsystem, what employing preset is that battery carries out trial charging with the initial output current of the type matching of described power subsystem.
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 meets, when described first judged result represent described output voltage do not meet described pre-conditioned time, regulate the output current of described charhing unit, described output voltage is met described pre-conditioned, can regulate according to the output current of the difference of the rated power of power supply to charhing unit, under the prerequisite guaranteeing to charge normal, improve charge efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
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 present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Charging method of the present invention, is applied to charhing unit.Described charhing unit is connected with power subsystem, and described charhing unit can export different electric currents.Concrete, described charhing unit directly can be connected with power subsystem, also can be connected 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: adopt the initial output current preset to be 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: judge whether the output voltage of charhing unit meets pre-conditioned, obtain the first judged result, wherein, describedly pre-conditionedly at least comprise described output voltage and be greater than predeterminated voltage, wherein, described predeterminated voltage is can to the minimum voltage of battery charging;
Usually, when battery is charged, require that predeterminated voltage is greater than a certain numerical value (such as 4.65V), can charge normal.The power output of power subsystem is normally constant, from physical theorem, 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 is greater than predeterminated voltage, represents and adopt current output current can charge to battery.
It should be noted that, describedly pre-conditionedly can also to comprise, current charging current is meeting larger charging current when described output voltage is greater than predeterminated voltage.Charge efficiency can be improved like this.Certainly, pre-conditionedly can also to arrange from other angles, will not enumerate at this.
Step 103: when described first judged result represent described output voltage do not meet described pre-conditioned time, regulate the output current of described charhing unit, described output voltage met described pre-conditioned.
When described pre-conditioned only include described output voltage be greater than predeterminated voltage time, regulate the output current of described charhing unit, make described output voltage be greater than predeterminated voltage.
Concrete, when described initial output current is the non-minimum value in described different electric current, the output current of described charhing unit can be reduced; Owing to having inverse relation between electric current and voltage, output voltage can be made to increase so reduce output current.
Judge whether the current output voltage of described charhing unit is greater than predeterminated voltage, obtains the second judged result;
When described second judged result represents that the current output voltage of described charhing unit is less than predeterminated voltage, again perform the step of the output current reducing described charhing unit, until the current output voltage of described charhing unit is greater than predeterminated voltage.
It should be noted that, when being adjusted to the minimum value in the output current scope of charhing unit when output current, if output voltage is still less than predeterminated voltage, so can stop charging.
When described initial output current is the non-maximum in described different electric current, the output current of described charhing unit can be increased;
Judge whether the current output voltage of described charhing unit is less than predeterminated voltage, obtain the 3rd judged result;
When described 3rd judged result represents that the current output voltage of described charhing unit is greater than predeterminated voltage, again perform the step of the output current increasing described charhing unit, until the current output voltage of described charhing unit is less than predeterminated voltage;
Adopt the output current before the last output current increasing described charhing unit, as charging current.
Visible, adopt the charging method of the present embodiment, pre-conditioned by judging whether output voltage meets, when described first judged result represent described output voltage do not meet described pre-conditioned time, regulate the output current of described charhing unit, described output voltage is met described pre-conditioned, can regulate according to the output current of the difference of the rated power of power supply to charhing unit, under the prerequisite guaranteeing 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: adopt the initial output current preset to be that battery carries out trial charging;
Step 202: judge whether output voltage meets pre-conditioned, obtain the first judged result, wherein, describedly pre-conditionedly at least comprise described output voltage and be greater than predeterminated voltage, wherein, described predeterminated voltage is can to the minimum voltage of battery charging;
Step 203: when described first judged result represent described output voltage do not meet described pre-conditioned and described initial output current is the non-minimum value in described different electric current time, reduce the output current of described charhing unit;
Step 204: judge whether the current output voltage of described charhing unit is greater than predeterminated voltage, obtains the second judged result;
Step 205: when described second judged result represents that the current output voltage of described charhing unit is less than predeterminated voltage, performs the step of the output current reducing described charhing unit, again until the current output voltage of described charhing unit is greater than predeterminated voltage.
Step 206: when the output current of described charhing unit is the minimum value in described multiple different output current, and when the current output voltage of described charhing unit is less than predeterminated voltage, stop charging to battery.
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: adopt the initial output current preset to be that battery carries out trial charging;
Step 302: judge whether output voltage meets pre-conditioned, obtain the first judged result, wherein, describedly pre-conditionedly at least comprise described output voltage and be greater than predeterminated voltage, wherein, described predeterminated voltage is can to the minimum voltage of battery charging;
Step 303: when described first judged result represent described output voltage do not meet described pre-conditioned and described initial output current is the non-maximum in described different electric current time, increase the output current of described charhing unit;
Step 304: judge whether the current output voltage of described charhing unit is less than predeterminated voltage, obtain the 3rd judged result;
Step 305: when described 3rd judged result represents that the current output voltage of described charhing unit is greater than predeterminated voltage, performs the step of the output current increasing described charhing unit, again until the current output voltage of described charhing unit is less than predeterminated voltage;
Adopt the output current before the last output current increasing described charhing unit, as charging current;
Step 306: when the electricity of described battery is less than first threshold, adopts current constant mode to charge to battery;
Current constant mode is a kind of large current charge mode.Current constant mode can adopt the charging current determined in step 305.
Step 307: when the electricity of described battery is greater than first threshold and is less than Second Threshold, adopts constant voltage mode to charge to battery;
When battery electric quantity reaches certain proportion, adopt constant voltage charge, charging current is now about 2/3rds of constant current charge mode.
Step 308: when the electricity of described battery is greater than Second Threshold, adopts small area analysis mode to charge to battery.
Low current charge mode, also claims trickle charge.The small area analysis between 30-130mA can be adopted to charge to battery.
Charging method in the present embodiment, by step 306-308, can extend the useful life of battery, slow down the attenuation degree of battery electric quantity.Further, in any embodiment in the application, the method for step 306-308 all can be adopted to be 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 determining described power subsystem; Described power supply type at least comprises USB type and type of adapter;
Concrete, for the power subsystem of USB type and type of adapter, following manner can be adopted to distinguish.Usually, be connected by interface between charhing unit with power subsystem.Usually there is in described interface multiple signals (comprising the signal of telecommunication and data-signal) path.For the power subsystem (such as charhing unit is connected with the USB interface on computer) of USB type, between two data signal path of described interface, there is voltage difference, and for the power subsystem of type of adapter, between two data signal path of described interface, then not there is voltage difference.Therefore, by whether there is voltage difference between two data signal path to the interface between charhing unit and power subsystem can detect, and then judge the type of power subsystem.
Step 402: according to the type of described power subsystem, what employing preset is that battery carries out trial charging with the initial output current of the type matching of described power subsystem.
For the power subsystem of type of adapter, because the power of the power subsystem of the type is usually comparatively large, therefore, the initial output current that can adopt comparatively large (such as 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, less initial output current can be adopted to be 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 class.Wherein the type of USB3.0 can provide larger output current, is about 500mA.So, in the present embodiment, after detecting that power subsystem is USB type, initial output current can be set to 500mA.If output voltage is lower than predeterminated voltage, then reduce output current.
Step 403: judge whether output voltage meets pre-conditioned, obtain the first judged result, wherein, describedly pre-conditionedly at least comprise described output voltage and be greater than predeterminated voltage, wherein, described predeterminated voltage is can to the minimum voltage of battery charging;
Step 404: when described first judged result represent described output voltage do not meet described pre-conditioned time, regulate the output current of described charhing unit, described output voltage met described pre-conditioned.
The charging method of the present embodiment, can distinguish the type of charhing unit, and the output current of difference to charhing unit according to the type of power supply regulates, and under the prerequisite guaranteeing to charge normal, improves charge efficiency.
The invention also discloses a kind of charging device.Described charging device is connected with power subsystem, and described battery charger can export 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:
Trial charging unit 501 is that battery carries out trial charging for adopting the initial output current preset;
First judging unit 502, pre-conditioned for judging whether output voltage meets, obtain the first judged result, wherein, describedly pre-conditionedly at least comprise described output voltage and be greater than predeterminated voltage, wherein, described predeterminated voltage is can to the minimum voltage of battery charging;
Output current regulon 503, for represent when described first judged result described output voltage do not meet described pre-conditioned time, regulate the output current of described charhing unit to regulate, described output voltage met described pre-conditioned.
Adopt the charging device of the present embodiment, pre-conditioned by judging whether output voltage meets, when described first judged result represent described output voltage do not meet described pre-conditioned time, regulate the output current of described charhing unit, described output voltage is met described pre-conditioned, can regulate according to the output current of the difference of the rated power of power supply to charhing unit, under the prerequisite guaranteeing 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, for when described initial output current is the non-minimum value in described different electric current, reduces the output current of described charging device;
Second judgment sub-unit 602, for judging whether the current output voltage of described charging device is greater than predeterminated voltage, obtains the second judged result;
First controls subelement 603, for when described second judged result represents that the current output voltage of described charging device is less than predeterminated voltage, control described output current and reduce the step that subelement performs the output current reducing described charging device again, until the current output 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, for when described initial output current is the non-maximum in described different electric current, increases the output current of described charging device;
3rd judgment sub-unit 702, for judging whether the current output voltage of described charging device is less than predeterminated voltage, obtains the 3rd judged result;
Second controls subelement 703, for when described 3rd judged result represents that the current output voltage of described charging device is greater than predeterminated voltage, control described output current and increase the step that subelement performs the output current increasing described charging device again, until the current output voltage of described charging device is less than predeterminated voltage;
Charging current determination subelement 704, for adopting the output current before the last output current increasing 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:
Trial charging unit 501 is that battery carries out trial charging for adopting the initial output current preset;
First judging unit 502, pre-conditioned for judging whether output voltage meets, obtain the first judged result, wherein, describedly pre-conditionedly at least comprise described output voltage and be greater than predeterminated voltage, wherein, described predeterminated voltage is can to the minimum voltage of battery charging;
Output current regulon 503, for represent when described first judged result described output voltage do not meet described pre-conditioned time, regulate the output current of described charhing unit to regulate, described output voltage met described pre-conditioned.
Also comprise:
Constant current charge unit 801, for when the electricity of described battery is less than first threshold, adopts current constant mode to charge to battery;
Constant voltage charge unit 802, for when the electricity of described battery is greater than first threshold and is less than Second Threshold, adopts constant voltage mode to charge to battery;
Trickle charge unit 803, for when the electricity of described battery is greater than Second Threshold, adopts small area analysis mode to charge to battery.
In addition, in practical application, described device can also comprise:
Charging stop control unit, for being the minimum value in described different electric current when the output current of described charhing unit, and when the current output voltage of described charhing unit is less than predeterminated voltage, stops charging to battery.
Described device can also comprise: power supply type determining unit, for determining the type of described power subsystem; Described power supply type at least comprises USB type and type of adapter;
Accordingly, described trial charging unit can comprise:
Trial charging subelement, for the type according to described power subsystem, what employing preset is that battery carries out trial charging with the initial output current of the type matching of described power subsystem.
In sum, the charging device of the application, can regulate according to the output current of difference to charhing unit of the rated power of power supply and type, under the prerequisite guaranteeing to charge normal, improves charge efficiency.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required hardware platform by software and realize, can certainly all be implemented by hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, what technical scheme of the present invention contributed to background technology can embody with the form of software product in whole or in part, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in some part of each embodiment of the present invention or embodiment.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For device disclosed in embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, 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 is connected with power subsystem, and described charhing unit can export different electric currents, and described method comprises:
The initial output current preset is adopted to be that battery carries out trial charging;
Judge whether the output voltage of charhing unit meets pre-conditioned, obtain the first judged result, wherein, describedly pre-conditionedly at least comprise described output voltage and be greater than predeterminated voltage, wherein, described predeterminated voltage is can to the minimum voltage of battery charging, and described predeterminated voltage is determined according to the rated output power of battery unit;
When described first judged result represent described output voltage do not meet described pre-conditioned time, regulate the output current of described charhing unit, described output voltage met described pre-conditioned.
2. method according to claim 1, is characterized in that, when described initial output current is the non-minimum value in described different electric current, the output current of the described charhing unit of described adjustment, comprising:
Reduce the output current of described charhing unit;
Judge whether the current output voltage of described charhing unit is greater than predeterminated voltage, obtains the second judged result;
When described second judged result represents that the current output voltage of described charhing unit is less than predeterminated voltage, again perform the step of the output current reducing described charhing unit, until the current output voltage of described charhing unit is greater than predeterminated voltage.
3. method according to claim 1, is characterized in that, when described initial output current is the non-maximum in described different electric current, the output current of the described charhing unit of described adjustment, comprising:
Increase the output current of described charhing unit;
Judge whether the current output voltage of described charhing unit is less than predeterminated voltage, obtain the 3rd judged result;
When described 3rd judged result represents that the current output voltage of described charhing unit is greater than predeterminated voltage, again perform the step of the output current increasing described charhing unit, until the current output voltage of described charhing unit is less than predeterminated voltage;
Adopt the output current before the last output current increasing described charhing unit, as charging current.
4. the method according to any one of claim 1-3, is characterized in that, regulates the output current of described charhing unit, make described output voltage meet described pre-conditioned after, also comprise:
When the electricity of described battery is less than first threshold, current constant mode is adopted to charge to battery;
When the electricity of described battery is greater than first threshold and is less than Second Threshold, constant voltage mode is adopted to charge to battery;
When the electricity of described battery is greater than Second Threshold, small area analysis mode is adopted to charge to battery.
5. the method according to any one of claim 1-3, is characterized in that, also comprises:
When the output current of described charhing unit is the minimum value in described different electric current, and when the current output voltage of described charhing unit is less than predeterminated voltage, stop charging to battery.
6. the method according to any one of claim 1-3, is characterized in that, also comprises:
Determine the type of described power subsystem; Described power supply type at least comprises USB type and type of adapter;
The initial output current that described employing presets is that battery carries out trial charging and comprises:
According to the type of described power subsystem, what employing preset is that battery carries out trial charging with the initial output current of the type matching of described power subsystem.
7. a charging device, is characterized in that, described charging device is connected with power subsystem, and described charging device can export different electric currents, and described charging device comprises:
Trial charging unit is that battery carries out trial charging for adopting the initial output current preset;
First judging unit, for judging whether the output voltage of charging device meets pre-conditioned, obtain the first judged result, wherein, describedly pre-conditionedly at least comprise described output voltage and be greater than predeterminated voltage, wherein, described predeterminated voltage is can to the minimum voltage of battery charging, and described predeterminated voltage is determined according to the rated output power of battery unit;
Output current regulon, for represent when described first judged result described output voltage do not meet described pre-conditioned time, regulate the output current of described charhing unit, described output voltage met described pre-conditioned.
8. device according to claim 7, is characterized in that, described output current regulon comprises:
Output current reduces subelement, for when described initial output current is the non-minimum value in described different electric current, reduces the output current of described charging device;
Second judgment sub-unit, for judging whether the current output voltage of described charging device is greater than predeterminated voltage, obtains the second judged result;
First controls subelement, for when described second judged result represents that the current output voltage of described charging device is less than predeterminated voltage, control described output current and reduce the step that subelement performs the output current reducing described charging device again, until the current output 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, for when described initial output current is the non-maximum in described different electric current, increases the output current of described charging device;
3rd judgment sub-unit, for judging whether the current output voltage of described charging device is less than predeterminated voltage, obtains the 3rd judged result;
Second controls subelement, for when described 3rd judged result represents that the current output voltage of described charging device is greater than predeterminated voltage, control described output current and increase the step that subelement performs the output current increasing described charging device again, until the current output voltage of described charging device is less than predeterminated voltage;
Charging current determination subelement, for adopting the output current before the last output current increasing described charging device, as charging current.
10. the device according to any one of claim 7-9, is characterized in that, described device also comprises:
Constant current charge unit, for when the electricity of described battery is less than first threshold, adopts current constant mode to charge to battery;
Constant voltage charge unit, for when the electricity of described battery is greater than first threshold and is less than Second Threshold, adopts constant voltage mode to charge to battery;
Trickle charge unit, for when the electricity of described battery is greater than Second Threshold, adopts small area analysis mode to charge to battery.
11. devices according to any one of claim 7-9, it is characterized in that, described device also comprises:
Charging stop control unit, for being the minimum value in described different electric current when the output current of described charhing unit, and when the current output voltage of described charhing unit is less than predeterminated voltage, stops charging to battery.
12. devices according to any one of claim 7-9, it is characterized in that, described device also comprises:
Power supply type determining unit, for determining the type of described power subsystem; Described power supply type at least comprises USB type and type of adapter;
Described trial charging unit comprises:
Trial charging subelement, for the type according to described power subsystem, what employing preset is that battery carries out trial charging with the initial output current of the type matching of described power subsystem.
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