CN103219556B - Method and system for charging mobile terminal - Google Patents
Method and system for charging mobile terminal Download PDFInfo
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- CN103219556B CN103219556B CN201310110571.6A CN201310110571A CN103219556B CN 103219556 B CN103219556 B CN 103219556B CN 201310110571 A CN201310110571 A CN 201310110571A CN 103219556 B CN103219556 B CN 103219556B
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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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 invention discloses a method and system for charging a mobile terminal. The mobile terminal is connected with an external charger; a charging integrated circuit (IC) is arranged in the mobile terminal; and a control register is arranged in the charging IC. The method comprises the following steps that: (1) whether the control register of the charging IC is in a control position or not is judged, and if yes, the next step is performed, otherwise, the judgment is finished; (2) the working condition in the control position of the control register of the charging IC is obtained; (3) whether the working condition in the control position is in a state unable to charge, and if yes, the next step is performed, otherwise, the step (2) is returned; and (4) reset operation is performed on a timer in the charging IC and the step (1) is returned. Compared to the prior art, the method can reset the timer in the charging IC by acquiring the working condition in the control position of users and can effectively prevent abnormal conditions and no charging of direct current-direct current (DC-DC) chargers.
Description
Technical field
The present invention relates to a kind of mobile terminal charging method and system, particularly relate to the abnormal method and system of not charging of a kind of DC-DC of preventing charger states.
Background technology
Along with the development of mobile Internet, the development of mobile terminal product is also with rapid changepl. never-ending changes and improvements.Smart mobile phones etc. are all towards large-size screen monitors development, and resolution is more and more higher, and camera pixel is also more and more higher.Various peripheral applications also emerges in an endless stream.The thing followed is continued a journey problem exactly, so battery capacity is also increasing, even has the cell arrangement more than 4000mAh at present on the market.Battery capacity is larger, and charging just becomes a test, and traditional charging modes can not satisfy the demands far away, and user needs fast charge method.DC-DC charger charging method is exactly a kind of fast charge method, and its conversion efficiency is high, and available charging current is large, can provide the charging current up to 1.5A, even higher.Just because of this, DC-DC charger plan is more and more applied in mobile terminal product.
Although this solution has many good qualities, also there is weak point.The chip internal of this scheme has a timer, timer meeting timing when charging normal, often cross one-period (as the scheme of TI, this cycle is 32s) timer can automatically reset once, if mobile phone appearance deadlocks etc. are abnormal, timer cannot by the cycle resets above, after this timer can enter the time-count cycle (scheme of TI is 15 minutes) of IC self definition, timer error condition can be entered more than 15 minutes IC, and then automatically stop charging, now must carry out pulling out the battery-operated IC recovering state that just can make normal.A kind of safeguard measure that this mechanism provided the above-mentioned exception that may occur when being IC design originally.But; sometimes when mobile phone charge time due to high temperature, low temperature, the reasons such as over-charge protective cause stop charging; and charger is in place; this mechanism of IC just likely makes IC enter timer error condition, to being not what problem for can taking off the design of battery, pulling up battery and just can deal with problems; but just bothered very much for the design of internal battery; user cannot pull out battery, and mobile phone will cannot charge always, and therefore this is a very large risk.
Along with the lightening development of intelligent terminal, internal battery design is also more and more, designing for the project using again DC-DC charging method, avoiding the appearance of the problems referred to above to seem extremely important for taking internal battery.User can not allow mobile phone be in charged state always after all, so the original necessity of this design protection of IC is not just very abundant.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of mobile terminal charging method and system are provided, effectively can prevent the abnormal not charge condition of DC-DC charger states.
In order to achieve the above object, the technical solution used in the present invention is, a kind of mobile terminal charging method, and described mobile terminal is connected with external charger, mobile terminal built-in charging IC, and charging IC inside is provided with control register, comprises the following steps:
Step 1. judges whether the control register of charging IC is positioned on control bit, is perform next step, otherwise terminates to judge;
Step 2. obtains the control register control bit operating state of charging IC;
Step 3. judges whether control bit operating state is in cannot charged state, is perform next step, otherwise returns step 2;
The timer of step 4. to charging IC inside carries out reset operation, and returns step 1.
Further, the control register control bit operating state described in step 2 comprise normal charging condition with cannot charged state.
Further, described step 4 also comprised and arranges interval time before returning step 1, returned step 1 after arriving interval time.
Described interval time is set by mobile terminal system, is definite value.
A kind of Mobile terminal charging system, described mobile terminal is connected with external charger, mobile terminal built-in charging IC, and charging IC inside is provided with control register, comprising:
Obtain judge module, for judging whether the control register of charging IC is positioned at control bit;
Operating state acquisition module, for obtaining the control register control bit operating state of charging IC;
Operating state judge module, cannot charged state for judging whether control bit operating state is in;
Reseting module, for carrying out reset operation to the timer of charging IC inside.
Further, described mobile terminal is mobile phone, computer, MP3 player, MP4 player or E-book reader.
Compared with prior art, the invention has the beneficial effects as follows: by obtaining user's control bit operating state, the timer of charging IC inside is resetted, effectively can prevent the abnormal not charge condition of DC-DC charger states.
Accompanying drawing explanation
Fig. 1 is method flow diagram of the present invention.
Embodiment
Purport of the present invention is to overcome the deficiencies in the prior art; such as DC-DC charges IC due to temperature in charging process, and the factors such as over-charge protective cause charging to stop, and charger is also in place; now can enter timer error condition by probabilistic IC of appearance, cause mobile phone to charge.Especially internal battery design, cannot pull out battery, mobile phone normally cannot reply charging.Unless disassembled, this is unacceptable for user.A kind of mobile terminal charging method provided by the invention and system, by obtaining user's control bit operating state, reset to the timer of charging IC inside, effectively can prevent the abnormal not charge condition of DC-DC charger states.
Be described in detail, to be interpretated more in-depth technical characteristic of the present invention and advantage with reference to accompanying drawing below in conjunction with embodiment.
Method flow diagram of the present invention as shown in Figure 1, a kind of mobile terminal charging method, described mobile terminal is connected with external charger, mobile terminal built-in charging IC and timer, charging IC inside is provided with control register, and (control register (CR0 ~ CR3) is for controlling and determining the operator scheme of processor and current characteristic of executing the task, herein then for control box determination control bit operating state), comprise the following steps:
Step 1. judges whether the control register of charging IC is positioned on control bit, is perform next step, otherwise terminates to judge, is positioned at control bit and then illustrates that charger is in connection operating state, but will judge whether further to charge normal;
Step 2. obtains the control register control bit operating state of charging IC;
Step 3. judges whether control bit operating state is in cannot charged state, is perform next step, otherwise returns step 2;
The timer of step 4. to charging IC inside carries out reset operation, and returns step 1.
Further, the control register control bit operating state described in step 2 comprise normal charging condition with cannot charged state.
Further, described step 4 also comprised and arranges interval time before returning step 1, returned step 1 after arriving interval time.
Described interval time is set by mobile terminal system, is definite value.
A kind of Mobile terminal charging system, described mobile terminal is connected with external charger, mobile terminal built-in charging IC, and charging IC inside is provided with control register, comprising:
Obtain judge module, for judging whether the control register of charging IC is positioned at control bit;
Operating state acquisition module, for obtaining the control register control bit operating state of charging IC;
Operating state judge module, cannot charged state for judging whether control bit operating state is in;
Reseting module, for carrying out reset operation to the timer of charging IC inside.
Further, described mobile terminal is mobile phone, computer, MP3 player, MP4 player or E-book reader.
When due to temperature, overcharge or other factors cause mobile phone stop charging time, charge enable(in the control register of IC and charger charged state) control bit meeting set, namely being in disable(namely cannot charged state) state, software detection reads this control bit state information, if be in disable state after stopping to charging, then enter timer fault(and timer mistake at IC) before timer control bit is resetted, i.e. reset timer.
The invention reside in and initiatively destroy the condition that IC enters timer fault, make it cannot enter timer fault state.Consider no matter mobile phone is in what state, even deadlock state, user also can not allow mobile phone be in charged state always, so the protection mechanism of timer fault is not natively very necessary.And for internal battery design, the negative effect that this mechanism is brought will be more fatal.Therefore the design of internal battery can evade the generation of the problems referred to above by the method for the invention.
Above content is in conjunction with concrete optimal way further description made for the present invention, should not assert that specific embodiment of the invention is confined to above explanation.For those skilled in the art, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, within the protection range that the claim that all should be considered as being submitted to by the present invention is determined.
Claims (6)
1. a mobile terminal charging method, described mobile terminal is connected with external charger, mobile terminal built-in charging IC, and charging IC inside is provided with control register, comprises the following steps:
Step 1. judges whether the control register of charging IC is positioned on control bit, is perform next step, otherwise terminates to judge;
Step 2. obtains the control register control bit operating state of charging IC;
Step 3. judges whether control bit operating state is in cannot charged state, is perform next step, otherwise returns step 2;
The timer of step 4. to charging IC inside carries out reset operation, and returns step 1.
2. mobile terminal charging method according to claim 1, is characterized in that: the control register control bit operating state described in step 2 comprise normal charging condition with cannot charged state.
3. mobile terminal charging method according to claim 2, is characterized in that: described step 4 also comprised and arranges interval time before returning step 1, returns step 1 after arriving interval time.
4. mobile terminal charging method according to claim 3, is characterized in that: described interval time is set by mobile terminal system, is definite value.
5. a Mobile terminal charging system, described mobile terminal is connected with external charger, mobile terminal built-in charging IC, and charging IC inside is provided with control register, it is characterized in that, comprising:
Judge module, for judging whether the control register of charging IC is positioned at control bit;
Operating state acquisition module, for obtaining the control register control bit operating state of charging IC;
Operating state judge module, cannot charged state for judging whether control bit operating state is in;
Reseting module, for carrying out reset operation to the timer of charging IC inside.
6. Mobile terminal charging system according to claim 5, is characterized in that, comprising: described mobile terminal is mobile phone, computer, MP3 player, MP4 player or E-book reader.
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CN201310110571.6A CN103219556B (en) | 2013-04-01 | 2013-04-01 | Method and system for charging mobile terminal |
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CN201310110571.6A CN103219556B (en) | 2013-04-01 | 2013-04-01 | Method and system for charging mobile terminal |
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CN103219556B true CN103219556B (en) | 2015-06-17 |
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CN105404416B (en) * | 2015-10-23 | 2018-01-19 | 广东欧珀移动通信有限公司 | Touch-screen anti-disturbance method and device |
CN106356934B (en) * | 2016-09-26 | 2019-03-19 | 努比亚技术有限公司 | A kind of charge control method and mobile terminal |
CN107451067B (en) * | 2017-08-31 | 2020-12-08 | Oppo广东移动通信有限公司 | Processing method for downloading test and related product |
CN108132401A (en) * | 2017-12-28 | 2018-06-08 | 广东欧珀移动通信有限公司 | Charge abnormal detection method, device, storage medium and mobile terminal |
CN115642674A (en) * | 2022-11-10 | 2023-01-24 | 维沃移动通信有限公司 | Charging control method and device and electronic equipment |
Citations (2)
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CN102510115A (en) * | 2011-12-21 | 2012-06-20 | 广东欧珀移动通信有限公司 | Intelligent charging control circuit and intelligent charging control method |
CN102570528A (en) * | 2010-12-27 | 2012-07-11 | 东莞市妙达电动工具制造有限公司 | Current-limiting and voltage-limiting lithium battery charge circuit based on comparer |
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JP2012005160A (en) * | 2010-06-14 | 2012-01-05 | Hitachi Ltd | Charge/discharge circuit and built-in controller |
JP5591641B2 (en) * | 2010-09-17 | 2014-09-17 | ローム株式会社 | Charging circuit, control IC thereof, and electronic device using the same |
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Patent Citations (2)
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CN102570528A (en) * | 2010-12-27 | 2012-07-11 | 东莞市妙达电动工具制造有限公司 | Current-limiting and voltage-limiting lithium battery charge circuit based on comparer |
CN102510115A (en) * | 2011-12-21 | 2012-06-20 | 广东欧珀移动通信有限公司 | Intelligent charging control circuit and intelligent charging control method |
Non-Patent Citations (2)
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Patrick Heyer.先进的锂离子电池***充电管理和保护.《中国电子商情(基础电子)》.2011,(第8期),第43-46页. * |
基于手持导航产品的锂离子电池充电技术;陈学元等;《电子技术》;20070425(第23期);第182-184页 * |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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