CN104113114A - Mobile terminal different power self-adaptive charging method - Google Patents
Mobile terminal different power self-adaptive charging method Download PDFInfo
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- CN104113114A CN104113114A CN201410330522.8A CN201410330522A CN104113114A CN 104113114 A CN104113114 A CN 104113114A CN 201410330522 A CN201410330522 A CN 201410330522A CN 104113114 A CN104113114 A CN 104113114A
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- 238000007600 charging Methods 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000006978 adaptation Effects 0.000 claims description 16
- 238000000205 computational method Methods 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention discloses a mobile terminal different power self-adaptive charging method which comprises the following steps: to begin with, setting a safety voltage, line impedance and minimum charge current of a charging IC of the mobile terminal ; then, utilizing the minimum charge current to start a charger of the mobile terminal; reading the stable output voltage of the charger and calculating voltage difference of the output voltage and the safety voltage and current adjustment value; and finally, adjusting the minimum charge current of the charging IC according to the current adjustment value, and the charger charges the mobile terminal with the target charge current obtained after adjustment. The method can be realized through a software algorithm without increasing hardware cost only on the basis of an existing charging circuit, and the algorithm is simple, so that chargers with different power can be utilized to charge a mobile phone, maximum efficiency of the mobile phone charger is given full play to, charging speed is guaranteed to the greatest degree, and great convenience is provided for a larger number of users.
Description
Technical field
The present invention relates to a kind of charging method, particularly a kind of charging method of mobile terminal self adaptation different capacity.
Background technology
Mobile terminal, particularly mobile phone, as a kind of consumer goods, have spread in all kinds of crowds., generally there are multiple charger for mobile phone average family the inside, and the power of these chargers and electrical characteristic are scarcely the same.The unified interface standard of formulating according to Ministry of Industry and Information, uses different USB lines instead, can give different mobile phone chargings.At present the battery capacity of smart mobile phone is all larger, and the charging current of software set is also larger, charge the phone and may have no problem with the charger of standard configuration, but non-standard configuration but the charger that meets GB also have much in family the inside.Due to the difference of charger power output, in the time that to mobile terminal, particularly mobile phone charges, there are following 2 problems: 1, when user used than standard configuration charger power little charge time, charger for mobile phone cannot normally be worked, and shows as slow, the charger of cannot charging, charge abnormal hot etc.; 2, when user has used while charging than standard configuration charger is high-power, cause reaching the maximal efficiency of charger for mobile phone.
Summary of the invention
The present invention is for addressing the above problem, a kind of charging method of mobile terminal self adaptation different capacity is provided, it not only can use the charger of different capacity to charge the phone, and can give full play to again the maximal efficiency of charger for mobile phone simultaneously, farthest ensures charging rate.
For achieving the above object, the technical solution used in the present invention is:
A charging method for mobile terminal self adaptation different capacity, is characterized in that, comprises the following steps:
10. safe voltage, line impedance and the minimum charge current of the charging IC of described mobile terminal are set;
20. start the charger of described mobile terminal with minimum charge current;
30. read the stable output voltage of described charger, and calculate the voltage difference of this output voltage and described safe voltage;
40. calculate according to described voltage difference the electric current adjusted value allowing;
50. adjust the minimum charge current of charging IC according to described electric current adjusted value, and charger charges to described mobile terminal with the target charging current after adjusting.
Preferably, described safe voltage refers to when the output voltage of charger is minimum value, the magnitude of voltage of this charging IC when this charger can be identified by the charging IC of described mobile terminal.
Preferably, described line impedance comprises mainboard line impedance and the charging USB line impedance of described mobile terminal.
Preferably, the computational methods of described electric current adjusted value are:
Δ I=Δ V/Z, wherein Δ V=V1-V0;
Above-mentioned V0 is the safe voltage of charging IC, the output voltage that V1 is charger, and the voltage difference of Δ V output voltage and safe voltage, Z is the line impedance of charging IC, Δ I is electric current adjusted value.
Preferably, the computational methods of described target charging current are:
I1＝I0+ΔI；
Wherein, Δ I is electric current adjusted value, and I0 is the minimum charge current of charging IC, and I1 is the target charging current after adjusting.
Preferably, it is 4.55V that safe voltage is set in described step 10, and minimum charge current is 300mA.
Preferably, in described step 30, read the stable output voltage of described charger, be mainly by read the output voltage of a charger in predetermined time interval, and after reading continuously repeatedly, calculate again the mean value of output voltage, be the stable output voltage of charger.
Preferably, in described step 40, calculate according to described voltage difference the electric current adjusted value allowing, to the default threshold values of described voltage difference, if being greater than this threshold values, voltage difference adjusts charging current, if being less than or equal to this threshold values, voltage difference do not adjust charging current.
Preferably, when the output voltage of described charger is less than the safe voltage of the IC that charges, do not adjust charging current.
The invention has the beneficial effects as follows:
The charging method of a kind of mobile terminal self adaptation different capacity of the present invention, first it arrange the safe voltage of the charging IC of described mobile terminal, line impedance and minimum charge current, then start the charger of described mobile terminal with minimum charge current, read the stable output voltage of described charger, and calculate voltage difference and the electric current adjusted value of this output voltage and described safe voltage, finally according to described electric current adjusted value, the minimum charge current of charging IC is adjusted, charger charges to described mobile terminal with the target charging current after adjusting, it need to be on the basis of existing charging circuit, can realize by software algorithm, without increasing hardware cost, and algorithm is simple, thereby can use the charger of different capacity to charge the phone, give full play to the maximal efficiency of charger for mobile phone, farthest ensure charging rate, for users bring great convenience.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the general flow chart of the charging method of a kind of mobile terminal self adaptation of the present invention different capacity.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, clear, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, the charging method of a kind of mobile terminal self adaptation different capacity of the present invention, it comprises the following steps:
10. safe voltage, line impedance and the minimum charge current of the charging IC of described mobile terminal are set; In the present embodiment, safe voltage is preferably 4.55V, and minimum charge current is preferably 300mA;
20. start the charger of described mobile terminal with minimum charge current;
30. read the stable output voltage of described charger, and calculate the voltage difference of this output voltage and described safe voltage;
40. calculate according to described voltage difference the electric current adjusted value allowing;
50. adjust the minimum charge current of charging IC according to described electric current adjusted value, and charger charges to described mobile terminal with the target charging current after adjusting.
Described safe voltage refers to when the output voltage of charger is minimum value, the magnitude of voltage of this charging IC when this charger can be identified by the charging IC of described mobile terminal; Described line impedance comprises mainboard line impedance and the charging USB line impedance of described mobile terminal.
The computational methods of described electric current adjusted value are:
Δ I=Δ V/Z, wherein Δ V=V1-V0;
Above-mentioned V0 is the safe voltage of charging IC, the output voltage that V1 is charger, and the voltage difference of Δ V output voltage and safe voltage, Z is the line impedance of charging IC, Δ I is electric current adjusted value.
The computational methods of described target charging current are:
I1＝I0+ΔI；
Wherein, Δ I is electric current adjusted value, and I0 is the minimum charge current of charging IC, and I1 is the target charging current after adjusting.
In described step 30, read the stable output voltage of described charger, it is mainly the output voltage by read a charger in predetermined time interval, and after reading continuously repeatedly, calculate again the mean value of output voltage, be the stable output voltage of charger; In the present embodiment, be preferably 10 seconds described interval time, at interval of the output voltage that reads a charger for 10 seconds, and calculating mean value again after reading continuously 10 times.
In described step 40, calculate according to described voltage difference the electric current adjusted value allowing, to the default threshold values of described voltage difference, if being greater than this threshold values, voltage difference adjusts charging current, do not adjust charging current if voltage difference is less than or equal to this threshold values, described threshold voltage is preferably 50mV; And, when the output voltage of described charger is less than the safe voltage of the IC that charges, do not adjust charging current.
Concrete charge step in the present embodiment is as follows:
Concrete implementation step is as follows:
1,, according to specifications, charging IC is set and the safe voltage V0 of charger can be detected;
2, according to Mobile terminal main board wiring situation, the impedance Z on charging circuit is set, comprises mainboard line impedance and charging USB line impedence;
3, mobile terminal detects after charger, first charges with minimum charging current I0;
4, the output voltage of a charger is read at interval for 10 seconds, and continuous 10 times, averaged V1;
If 5 V1 > V0, calculate pressure differential deltap V=V1-V0;
If 6 Δ V > 50mV, the charging current Δ I=Δ V/Z that calculating can be adjusted; If Δ V is <=50mV, do not adjust charging current;
7, need the target charging current I1 of adjustment to be: I1=I0+ Δ I;
8, charging current I1 is set to charging IC, charger is charged to mobile terminal with the electric current of I1;
If 9 V1 <=V0, do not need to adjust charging current.
Above-mentioned explanation illustrates and has described the preferred embodiments of the present invention, be to be understood that the present invention is not limited to disclosed form herein, should not regard the eliminating to other embodiment as, and can be used for various other combinations, amendment and environment, and can, in invention contemplated scope herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not depart from the spirit and scope of the present invention, all should be in the protection range of claims of the present invention.
Claims (9)
1. a charging method for mobile terminal self adaptation different capacity, is characterized in that, comprises the following steps:
10. safe voltage, line impedance and the minimum charge current of the charging IC of described mobile terminal are set;
20. start the charger of described mobile terminal with minimum charge current;
30. read the stable output voltage of described charger, and calculate the voltage difference of this output voltage and described safe voltage;
40. calculate according to described voltage difference the electric current adjusted value allowing;
50. adjust the minimum charge current of charging IC according to described electric current adjusted value, and charger charges to described mobile terminal with the target charging current after adjusting.
2. the charging method of a kind of mobile terminal self adaptation different capacity according to claim 1, it is characterized in that: described safe voltage refers to when the output voltage of charger is minimum value, the magnitude of voltage of this charging IC when this charger can be identified by the charging IC of described mobile terminal.
3. the charging method of a kind of mobile terminal self adaptation different capacity according to claim 1, is characterized in that: described line impedance comprises mainboard line impedance and the charging USB line impedance of described mobile terminal.
4. the charging method of a kind of mobile terminal self adaptation different capacity according to claim 1, is characterized in that: the computational methods of described electric current adjusted value are:
Δ I=Δ V/Z, wherein Δ V=V1-V0;
Above-mentioned V0 is the safe voltage of charging IC, the output voltage that V1 is charger, and the voltage difference of Δ V output voltage and safe voltage, Z is the line impedance of charging IC, Δ I is electric current adjusted value.
5. the charging method of a kind of mobile terminal self adaptation different capacity according to claim 4, is characterized in that: the computational methods of described target charging current are:
I1＝I0+ΔI：
Wherein, Δ I is electric current adjusted value, and I0 is the minimum charge current of charging IC, and I1 is the target charging current after adjusting.
6. the charging method of a kind of mobile terminal self adaptation different capacity according to claim 1, is characterized in that: it is 4.55V that safe voltage is set in described step 10, and minimum charge current is 300mA.
7. the charging method of a kind of mobile terminal self adaptation different capacity according to claim 1, it is characterized in that: the stable output voltage that reads described charger in described step 30, it is mainly the output voltage by read a charger in predetermined time interval, and after reading continuously repeatedly, calculate again the mean value of output voltage, be the stable output voltage of charger.
8. the charging method of a kind of mobile terminal self adaptation different capacity according to claim 1, it is characterized in that: in described step 40, calculate according to described voltage difference the electric current adjusted value allowing, to the default threshold values of described voltage difference, adjust charging current if voltage difference is greater than this threshold values, do not adjust charging current if voltage difference is less than or equal to this threshold values.
9. the charging method of a kind of mobile terminal self adaptation different capacity according to claim 1, is characterized in that: when the output voltage of described charger is less than the safe voltage of the IC that charges, do not adjust charging current.
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| CN105280970A (en) * | 2015-03-25 | 2016-01-27 | 维沃移动通信有限公司 | Charging method for mobile terminal and mobile terminal |
| CN105337353A (en) * | 2015-11-04 | 2016-02-17 | 厦门美图移动科技有限公司 | Mobile phone charger and safety authentication method and system thereof |
| WO2016101450A1 (en) * | 2014-12-26 | 2016-06-30 | 中兴通讯股份有限公司 | Multi-power charger and multi-power charging method |
| CN105826959A (en) * | 2015-05-18 | 2016-08-03 | 维沃移动通信有限公司 | Charging method, device and mobile terminal |
| CN106129501A (en) * | 2016-06-29 | 2016-11-16 | 珠海市魅族科技有限公司 | A kind of method and device of terminal charge |
| CN106208297A (en) * | 2016-08-31 | 2016-12-07 | 维沃移动通信有限公司 | A kind of charging circuit, the method controlling charging circuit charging and mobile terminal |
| WO2016192675A1 (en) * | 2015-06-03 | 2016-12-08 | 广东欧珀移动通信有限公司 | Method for outputting charging current and power amplifier |
| CN106329593A (en) * | 2015-06-30 | 2017-01-11 | 北京壹人壹本信息科技有限公司 | Charging method and device adaptive to chargers with different power |
| WO2020223903A1 (en) * | 2019-05-07 | 2020-11-12 | Oppo广东移动通信有限公司 | Charging current control method, electronic device, and power supply apparatus |
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| WO2016101450A1 (en) * | 2014-12-26 | 2016-06-30 | 中兴通讯股份有限公司 | Multi-power charger and multi-power charging method |
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| CN105826959B (en) * | 2015-05-18 | 2018-08-17 | 维沃移动通信有限公司 | A kind of method, device and mobile terminal of charging |
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| CN105337353A (en) * | 2015-11-04 | 2016-02-17 | 厦门美图移动科技有限公司 | Mobile phone charger and safety authentication method and system thereof |
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| WO2020223903A1 (en) * | 2019-05-07 | 2020-11-12 | Oppo广东移动通信有限公司 | Charging current control method, electronic device, and power supply apparatus |
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| CN112350393A (en) * | 2020-06-28 | 2021-02-09 | 中兴通讯股份有限公司 | Charging method, terminal and storage medium |
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