CN103730915A - Charging control method and electronic equipment adopting method - Google Patents
Charging control method and electronic equipment adopting method Download PDFInfo
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- CN103730915A CN103730915A CN201210381130.5A CN201210381130A CN103730915A CN 103730915 A CN103730915 A CN 103730915A CN 201210381130 A CN201210381130 A CN 201210381130A CN 103730915 A CN103730915 A CN 103730915A
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Abstract
The invention provides a charging control method and electronic equipment adopting the method. According to the method, the constant current charging process in battery charging is divided into three modes. For the first constant current charging mode, the charging voltage is increased gradually, and when the charging voltage reaches the maximum allowed charging voltage, the second constant current charging mode is executed; when battery voltages reach a preset value, the third constant current charging mode is executed; in the third constant current charging mode, the charging voltage is decreased gradually to the constant voltage charging voltage, and after the charging voltage reaches the constant voltage charging voltage, the constant voltage charging mode is executed till battery charging is completed. According to the charging control method and the electronic equipment adopting the method, through the process of voltage increase first and voltage decrease second, when the constant current charging modes are completed, the battery voltage can be close to the battery voltage maximum threshold value as much as possible, so the time for the constant voltage charging mode is greatly shortened, and then the whole battery charging time is shortened.
Description
Technical field
The present invention relates to a kind of charge control method and uses the electronic installation of the method, particularly a kind of electronic installation that dynamically arranges the charge control method method in charging voltage optimization charging interval and use the method.
Background technology
The function of the portable electronic equipment such as smart mobile phone, panel computer from strength to strength, power consumption and then increase, to the demand of power consumption, make the capacity of the battery that portable electronic equipment uses increasing, thereby cause the whole battery charging process time long, affect user and use.As everyone knows, charge mode comprises constant current charging mode and constant voltage charge pattern, at constant current charging mode, charging current is larger, charging that can be faster, and constant voltage charge pattern is trickle charge, battery is charged at a slow speed, generally, the charging interval of constant voltage charge pattern is longer, thereby has caused the time of whole charging longer.
Summary of the invention
In view of this, the invention provides the electronic installation of a kind of charge control method and use the method, to improve charge efficiency, shorten and fill a time.
A kind of electronic installation, comprise a charge control module, one detecting voltage module, one memory cell and a battery, this charging module is used for controlling charging voltage and charging current, and this detecting voltage module is used for detecting cell voltage, and this memory cell is for storage voltage preset value, during charging, this electricity module is for comparing cell voltage and the voltage preset value that is stored in memory cell.
This charge control module when relatively this cell voltage is greater than a predetermined voltage value, is controlled and is entered a constant voltage charge pattern, with a constant voltage charge voltage, battery is charged;
This charge control module is when relatively this cell voltage is less than this predetermined voltage value, control respectively with the first constant current charging mode, the second constant current charging mode, the 3rd constant current charging mode and constant voltage charge pattern are charged to battery, wherein, in this first constant current charging mode, it is constant that this charge control module maintains charging current, and increase gradually the maximum of charging voltage to permission, at the second constant current charging mode, it is constant that this charge control module maintains charging current, and take this permission maximum charging voltage be battery charging, at the 3rd constant current charging mode, it is constant that this charge control module maintains charging current, and reduce gradually charging voltage, until charging voltage is while being reduced to this constant voltage charge voltage, control and enter constant voltage charge pattern until be full of battery.
A charge control method, for portable electron device, comprises the following steps:
Detect current cell voltage, judge whether current cell voltage is equal to or greater than one first predetermined voltage value;
If current cell voltage is equal to or greater than the first predetermined voltage value, it is a constant voltage charge voltage that charging voltage is set, and enters constant voltage charge pattern;
If cell voltage is less than the first predetermined voltage value, charging voltage is set is initial charge voltage and controlling a constant charging current is battery charging;
Continue the current cell voltage of detecting, judge whether current cell voltage is less than cell voltage max-thresholds and whether current charging voltage is less than charging voltage max-thresholds;
If current battery voltage value is less than cell voltage max-thresholds and the current charging voltage value of person is less than charging voltage max-thresholds, by predetermined amplitude, continue to increase charging voltage, continue the current cell voltage of detecting;
If current cell voltage is equal to or greater than cell voltage max-thresholds or charging voltage equals charging voltage max-thresholds, controls and take this current charging voltage and filling with and state constant charged electrical electric current as battery charging;
Continue the current cell voltage of detecting and charging voltage, judge whether cell voltage is equal to or greater than the second predetermined voltage;
When if current cell voltage is less than the second predetermined voltage, continue the current cell voltage of detecting and charging voltage, judge whether cell voltage is equal to or greater than the second predetermined voltage;
When if current cell voltage is equal to or greater than the second predetermined voltage, and then judge whether current charging voltage equals described constant voltage charge voltage;
If current charging voltage is not equal to described constant voltage charge voltage, charging voltage is reduced and continues to judge by above-mentioned predetermined amplitude whether cell voltage is less than the second predetermined voltage value;
If current voltage equals described constant voltage charge voltage, charging enters constant voltage charge process.
According to one preferred embodiment of the present invention, described the first predetermined voltage 4.15V, the second predetermined voltage is 4.18V, constant voltage charge voltage is 4.2V, initial charge voltage is 4.225V, cell voltage max-thresholds is 4.2V, and charging voltage max-thresholds is 4.375V, and charging voltage increase or the amplitude and specific reducing are 25mV.
Charge control method of the present invention and electronic installation are divided into three patterns by the constant current charge process of battery charging, by first boosting in the process of step-down, when constant current charging mode is completed, cell voltage approaches cell voltage max-thresholds as much as possible, thereby greatly shortened the time of constant voltage charge pattern, and then shortened the whole battery charging interval.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of one embodiment of the invention electronic installation.
Fig. 2 is the flow chart of the bright embodiment charge control method of this law.
Main element symbol description
| Electronic installation | 1 |
| |
10 |
| Detecting |
20 |
| |
30 |
| |
40 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Referring to Fig. 1, is the functional block diagram of electronic installation 1 of the present invention, and this electronic installation be for can use internal battery, and the electronic installation of lithium battery power supply for example, as mobile phone, panel computer etc.
This electronic installation 1 comprises a charge control module 10, a detecting voltage module 20 and a battery 30.This detecting voltage module 20 is connected with battery 30, for detecting cell voltage.When this charge control module 10 starts as battery 30 charging for connect external power source at electronic installation 1, the cell voltage that detecting voltage module 20 is detected and one first predetermined voltage value compare.
This charge control module 10, when relatively this cell voltage is greater than this first predetermined voltage value, is controlled and is entered constant voltage charge pattern, with constant voltage charge voltage, battery 30 is charged.In the present embodiment, this constant voltage charge voltage is 4.2V.
This charge control module 10 also, when relatively this cell voltage is less than this first predetermined voltage value, is controlled respectively with the first constant current charging mode, the second constant current charging mode, the 3rd constant current charging mode and constant voltage charge pattern battery 30 is charged.Wherein, in this first constant current charging mode, it is constant that this charge control module 10 maintains charging current, and increase gradually the maximum of charging voltage to permission.At the second constant current charging mode, it is constant that this charge control module 10 maintains charging current, and take the maximum charging voltage of this permission and be battery 30 chargings.At the 3rd constant current charging mode, it is constant that this charge control module maintains charging current, and reduce gradually charging voltage, until charging voltage while being reduced to this constant voltage charge voltage, being controlled and entered constant voltage charge pattern until be full of battery 30.
Concrete, in the first constant current charging mode, these charge control module 10 charging voltages are set to an initial charge voltage, and control be take constant charge current as battery charging.In the present embodiment, this initial charge voltage is 4.225V.This charge control module 10 for example, is obtained the cell voltage of detecting voltage module 20 detectings at interval of a scheduled time (30 seconds), and judges whether current cell voltage is less than cell voltage max-thresholds (for example 4.2V) and whether current charging voltage equals charging voltage max-thresholds (for example 4.375V).For example, if current cell voltage is less than cell voltage max-thresholds (4.2V) and current charging voltage is less than charging voltage max-thresholds, charge control module 10 is controlled and charging voltage is increased to a predetermined amplitude, for example 25 millivolts (mV).Thereby at this first charge mode, this charge control module 10 is controlled and is increased gradually this charging voltage and maintain with this constant charging current for charging.Wherein, the maximum charging voltage value that this charging voltage max-thresholds can provide for charge control module 10.
When the current cell voltage of charge control module 10 judgement is more than or equal to cell voltage max-thresholds or current charging voltage and equals charging voltage max-thresholds, determine current charging voltage, and control and enter the second constant current charging mode.Wherein, at this second constant current charging mode, it is battery 30 chargings that this charge control module 10 be take current charging voltage and this constant charging current.Wherein, the maximum charging voltage of this current charging voltage for allowing, the maximum charging voltage of this permission is less than or equal to charging voltage max-thresholds, in current charging voltage, reach charging voltage max-thresholds and cell voltage while being less than cell voltage max-thresholds, because charge control module 10 is the highest, can only provide the charging voltage equating with charging voltage max-thresholds, so the maximum charging voltage now allowing equals charging voltage max-thresholds, and be less than charging voltage max-thresholds and cell voltage while being more than or equal to cell voltage max-thresholds when current charging voltage, because cell voltage reaches cell voltage max-thresholds, improve again charging voltage, battery can damage or occur safety problem because overcharging, so charging voltage is now the maximum charging voltage of permission, the maximum charging voltage now allowing is less than charging voltage max-thresholds.
Wherein, at this second constant current charging mode, this charge control module 10 also obtains at interval of a scheduled time cell voltage that 20 detectings of detecting voltage module obtain, and judges whether current cell voltage is less than one second predetermined voltage.Wherein, this second predetermined voltage is 4.18V.If current cell voltage is less than this second predetermined voltage, maintains the second constant current charging mode.
If the current cell voltage of charge control module 10 judgement is more than or equal to this second predetermined voltage, this charge control module 10 is controlled and is entered the 3rd constant current charging mode.
In the 3rd constant current charging mode, this charge control module 10 continues take this constant charging current as battery 30 chargings, and whether equals this constant voltage charge voltage at interval of a more current charging voltage of the scheduled time.If be not equal to, this charge control module 10 is controlled the charging voltage of output is reduced to this predetermined amplitude, reduces 25mV.
When the charging voltage of charge control module 10 judgement outputs equals this constant voltage charge voltage, control and enter constant voltage charge pattern, until be full of battery.
Wherein, this electronic installation 1 also comprises a memory module 40, and this memory module 40 stores this first predetermined voltage, the second predetermined voltage, constant voltage charge voltage, cell voltage max-thresholds and charging voltage max-thresholds.
Referring to Fig. 2, is the flow chart of one embodiment of the invention charge control method, and the method comprises the following steps:
S201: detecting voltage module 20 detecting cell voltages, charge control module 10 is obtained current cell voltage and judged whether current cell voltage is equal to or greater than the first predetermined voltage value.Wherein, this first predetermined voltage is 4.15V.
S202: if the current cell voltage of charge control module 10 judgement is equal to or greater than this first predetermined voltage, charging voltage is set is a constant voltage charge voltage to charge control module 10, directly enter constant voltage charge pattern, wherein, this constant voltage charge voltage is 4.2V.
S203: if the current cell voltage of charge control module 10 judgement is less than this first predetermined voltage value, controls and enter the first constant current charging mode.Wherein, in this first constant current charging mode, these charge control module 10 charging voltages are set to an initial charge voltage, and to control a constant charging current be battery charging.In the present embodiment, this initial charge voltage is 4.225V.
S204: in the first constant current charging mode, this charge control module 10 obtains current cell voltage at interval of the scheduled time, and the more current cell voltage of this charge control module 10 whether is less than cell voltage max-thresholds and whether current charging voltage is less than charging voltage max-thresholds.In the present embodiment, this cell voltage max-thresholds is 4.2V, and this charging voltage max-thresholds is 4.375V.
S205: if the current battery voltage value of charge control module 10 judgement is less than cell voltage max-thresholds and current charging voltage value is less than this charging voltage max-thresholds, charge control module 10 is controlled charging voltage increases by a predetermined amplitude, and returns to step S204.In the present embodiment, predetermined amplitude is 25mV.
S206: if the current cell voltage of charge control module 10 judgement is equal to or greater than cell voltage max-thresholds or charging voltage equals charging voltage max-thresholds, charge control module 10 is determined current charging voltage, and control enters the second constant current charging mode.Wherein, in this second constant current charging mode, it is battery charging that this charge control module 10 be take this current definite charging voltage and this constant charging current.
S207: in this second constant current charging mode, this detecting voltage module 20 continues the current cell voltage of detecting, and charge control module 10 judges whether cell voltage is equal to or greater than the second predetermined voltage.Wherein, this second predetermined voltage is 4.18V.
S208: if the current cell voltage of charge control module 10 judgement is less than the second predetermined voltage, return to step S206.
S209: if the current cell voltage of charge control module 10 judgement equals or large the second predetermined battery voltage, and then charge control module 10 judges whether current charging voltage equals constant voltage charge voltage.
S210: if the current charging voltage of charge control module 10 judgement is not equal to constant voltage charge voltage, charge control module 10 is controlled charging voltage and reduced above-mentioned amplitude and specific and return to step S207.
S211: if the current charging voltage of charge control module 10 judgement equals constant voltage charge voltage, charge control module 10 is controlled charging and entered constant voltage charge process.
Charge control method of the present invention and electronic installation are divided into three patterns by the constant current charge process of battery charging, by first boosting in the process of step-down, when constant current charging mode is completed, cell voltage approaches cell voltage max-thresholds as much as possible, thereby greatly shortened the time of constant voltage charge pattern, and then shortened the whole battery charging interval.
Be appreciated that the above execution mode is used for illustrative purposes only, and be not limitation of the present invention.The variation that the those of ordinary skill in relevant technologies field is made in corresponding technical field according to the present invention should belong to protection category of the present invention.
Claims (11)
1. an electronic installation, comprise a detecting voltage module and a battery, this detecting voltage module is used for detecting cell voltage, it is characterized in that, this electronic installation also comprises a charge control module, when this charge control module starts to charge for battery for connecting external power source at electronic installation, the cell voltage that detecting voltage module is detected and one first predetermined voltage value compare, and when relatively this cell voltage is greater than this first predetermined voltage value, control enters a constant voltage charge pattern, with a constant voltage charge voltage, battery is charged, this charge control module is also when relatively this cell voltage is less than this predetermined voltage value, control respectively with the first constant current charging mode, the second constant current charging mode, the 3rd constant current charging mode and constant voltage charge pattern are charged to battery, wherein, in this first constant current charging mode, it is constant that this charge control module maintains charging current, and increase gradually the maximum charging voltage of charging voltage to permission, in the second constant current charging mode, it is constant that this charge control module maintains charging current, and take this permission maximum charging voltage be battery charging, in the 3rd constant current charging mode, it is constant that this charge control module maintains charging current, and reduce gradually charging voltage, until charging voltage is while being reduced to this constant voltage charge voltage, control and enter constant voltage charge pattern until be full of battery.
2. electronic installation as claimed in claim 1, it is characterized in that, in described the first constant current charging mode, this charge control module is obtained the cell voltage of detecting voltage module detecting at interval of the scheduled time, and judge whether current cell voltage is less than cell voltage max-thresholds and whether current charging voltage equals charging voltage max-thresholds, if current cell voltage is less than cell voltage max-thresholds and current charging voltage is less than charging voltage max-thresholds, charge control module is controlled increases by a predetermined amplitude by charging voltage.
3. electronic installation as claimed in claim 2, it is characterized in that, when charge control module judges that current cell voltage is more than or equal to cell voltage max-thresholds or current charging voltage and equals charging voltage max-thresholds, determine current charging voltage, and control and to enter the second constant current charging mode, take current charging voltage and this constant charging current as battery charging.
4. electronic installation as claimed in claim 3, it is characterized in that, in this second constant current charging mode, this charge control module also obtains at interval of the scheduled time cell voltage that the detecting of detecting voltage module obtains, and judge whether current cell voltage is less than one second predetermined voltage, current cell voltage is less than this second predetermined voltage, maintain the second constant current charging mode, when charge control module judges current cell voltage, be more than or equal to this second predetermined voltage, this charge control module is controlled and is entered the 3rd constant current charging mode.
5. electronic installation as claimed in claim 4, it is characterized in that, in the 3rd constant current charging mode, whether this charge control module equals this constant voltage charge voltage at interval of more current charging voltage of the scheduled time, if be not equal to, this charge control module is controlled the charging voltage of output is reduced to this predetermined amplitude.
6. electronic installation as claimed in claim 5, is characterized in that, when the charging voltage of charge control module judgement output equals this constant voltage charge voltage, controls and enters constant voltage charge pattern, until be full of battery.
7. electronic installation as claimed in claim 4, is characterized in that, described electronic installation also comprises a memory cell, and described cell stores has this first predetermined voltage, the second predetermined voltage, constant voltage charge voltage, cell voltage max-thresholds.
8. a charge control method, for portable electron device claimed in claim 1, is characterized in that, comprises the following steps:
A) detect current cell voltage, judge whether current cell voltage is equal to or greater than one first predetermined voltage value;
B) if cell voltage is less than the first predetermined voltage value, control and enter the first constant current charging mode, in this first constant current mode, it is that initial charge voltage control be take constant charging current as battery charging that charging voltage is set;
C) continue the current cell voltage of detecting, judge whether current cell voltage is less than cell voltage max-thresholds and whether current charging voltage is less than charging voltage max-thresholds;
D), if current cell voltage is equal to or greater than cell voltage max-thresholds or charging voltage equals charging voltage max-thresholds, controls and take this current charging voltage and filling with and state constant charged electrical electric current as battery charging;
E) continue the current cell voltage of detecting and charging voltage;
F) and at the current cell voltage of judgement while being equal to or greater than the second predetermined voltage, continue to judge whether current charging voltage equals described constant voltage charge voltage;
G), if current voltage equals described constant voltage charge voltage, charging enters constant voltage charge process.
9. charge control method as claimed in claim 8, is characterized in that, described step also comprises step after a):
If current cell voltage is equal to or greater than the first predetermined voltage value, it is a constant voltage charge voltage that charging voltage is set, and enters constant voltage charge pattern.
10. charge control method as claimed in claim 8, is characterized in that, described step c) after also comprise step:
If current battery voltage value is less than cell voltage max-thresholds and current charging voltage value is less than charging voltage max-thresholds, by predetermined amplitude, continue to increase charging voltage, continue the current cell voltage of detecting.
11. charge control methods as claimed in claim 8, is characterized in that, described step f) after also comprise step:
If current charging voltage is not equal to described constant voltage charge voltage, charging voltage is reduced and continues to judge by above-mentioned predetermined amplitude whether cell voltage is less than the second predetermined voltage value.
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| CN104201727A (en) * | 2014-08-01 | 2014-12-10 | 惠州Tcl移动通信有限公司 | Rapid charging method and device |
| CN105449759A (en) * | 2015-12-03 | 2016-03-30 | 广东欧珀移动通信有限公司 | Charging method and mobile terminal |
| CN105978103A (en) * | 2016-06-30 | 2016-09-28 | 努比亚技术有限公司 | Charging control device and method |
| CN106410872A (en) * | 2015-07-27 | 2017-02-15 | 小米科技有限责任公司 | Charging method and device |
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| CN108230983A (en) * | 2018-01-19 | 2018-06-29 | 昆山国显光电有限公司 | The method for managing power supply of display screen |
| CN108777331A (en) * | 2018-06-08 | 2018-11-09 | 广东小天才科技有限公司 | Charging control method and device for lithium ion battery in electronic equipment |
| CN113451671A (en) * | 2019-02-01 | 2021-09-28 | 神讯电脑(昆山)有限公司 | Charging method of standby battery module and electronic device |
| CN113224803A (en) * | 2020-01-21 | 2021-08-06 | 北京小米移动软件有限公司 | Charging control method, charging control device and storage medium |
| CN111682599A (en) * | 2020-05-11 | 2020-09-18 | 广东天波信息技术股份有限公司 | Charging control method, device and system for lithium battery |
| CN113162187A (en) * | 2021-05-06 | 2021-07-23 | 杭州海康机器人技术有限公司 | Charging control method, charger and storage medium |
| CN113162187B (en) * | 2021-05-06 | 2023-01-31 | 杭州海康机器人股份有限公司 | Charging control method, charger and storage medium |
| CN113872279A (en) * | 2021-09-24 | 2021-12-31 | 深圳拓邦股份有限公司 | Battery pack charging method, device and system |
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Application publication date: 20140416 |