CN106602655A - Charging method and charging circuit of mobile terminal - Google Patents
Charging method and charging circuit of mobile terminal Download PDFInfo
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- CN106602655A CN106602655A CN201611233064.1A CN201611233064A CN106602655A CN 106602655 A CN106602655 A CN 106602655A CN 201611233064 A CN201611233064 A CN 201611233064A CN 106602655 A CN106602655 A CN 106602655A
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- battery
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a charging method and charging circuit of a mobile terminal. The charging method comprises a step of detecting whether the voltage of a battery is larger than a preset voltage value, a step of adjusting charging current to preset first charging current through a control circuit when the voltage of the battery is smaller than or equal to the preset voltage value, and a step of adjusting the charging current to preset second charging current through the control circuit when the voltage of a battery is larger than the preset voltage value so as to control the starting of the controller of the mobile terminal, adjusting the charging parameter of the battery by the controller, and charging the battery by using the charging parameter, wherein the second charging current is larger than the first charging current. By the above method, a problem that the chip of the mobile terminal can not be started in small current charging and the battery is easy to damage in large current charging.
Description
Technical field
The present invention relates to charging technique field, the charging method and charging circuit of more particularly to a kind of mobile terminal.
Background technology
Existing mobile terminal is operated by the way of internal battery, external charging mostly, in the electric discharge of battery
Cheng Zhong, voltage can constantly reduce, and battery discharges the electricity of internal reservoir, and voltage is reached after certain value, and continuing electric discharge will make
Into overdischarge, it is however generally that, overdischarge raises can inner pressure of battery, and both positive and negative polarity active substance reversibility is destroyed, even if filling
Electricity also can only partly recover, and capacity also has substantially decay so that the service life of battery shortens.Generally battery was all carried and put
Protection circuit resistance battery is crossed and put, but inside battery has self discharge, after long-time battery can be caused to cross and be put.
Battery is crossed after putting, and is needed with less current activation battery, then again with large current charge, but in order to take into account shifting
Dynamic terminal when cell voltage is relatively low can opening section underlying programs, generally battery not completely activate before be just aided with larger electricity
Current charge, easily causes lithium battery structure destruction, shortens battery life, and there is larger potential safety hazard.
The content of the invention
The invention mainly solves the technical problem of providing a kind of charging method and charging circuit of mobile terminal, can keep away
When exempting from low current charge, it is impossible to open the chip of mobile terminal, and during large current charge, the problem of battery is easily damaged.
To solve above-mentioned technical problem, one aspect of the present invention is：A kind of charging of mobile terminal is provided
Method, the method includes：Whether the voltage of detection battery is more than preset voltage value；It is electric less than or equal to default in the voltage of battery
During pressure value, charging current is adjusted to default first charging current by control circuit；It is more than predeterminated voltage in the voltage of battery
During value, charging current is adjusted to default second charging current by control circuit, is opened with the controller for controlling mobile terminal,
And the charge parameter of battery is adjusted by controller, battery is charged using charge parameter；Wherein, the second charging current is big
In the first charging current.
Wherein, whether the voltage for detecting battery is more than preset voltage value, including：In the first input end input electricity of comparator
The voltage in pond, in the second input voltage of the input with preset voltage value of comparator, and exports the first output signal or the
Two output signals, wherein, the signal that the first output signal is exported when being less than or equal to preset voltage value for the voltage of battery, second
The signal that output signal is exported when being more than preset voltage value for the voltage of battery；Predeterminated voltage is less than or equal in the voltage of battery
During value, charging current is adjusted to default first charging current by control circuit, including：It is defeated in receive comparator first
When going out signal, control control circuit adjusts charging current to default first charging current；It is electric more than default in the voltage of battery
During pressure value, charging current is adjusted to default second charging current by control circuit, including：Receiving the second of comparator
During output signal, control control circuit adjusts charging current to default second charging current.
Wherein, in the second input voltage of the input with preset voltage value of comparator, including：Using linear voltage drop electricity
Road into the voltage with predeterminated voltage, and is input into charging inlet voltage conversion to the second input of comparator.
Wherein, preset voltage value is 3V.
Wherein, the first charging current is 100mA, and the second charging current is 500mA.
To solve above-mentioned technical problem, another technical solution used in the present invention is：A kind of filling for mobile terminal is provided
Circuit, the circuit includes：Detection circuit, for detecting the voltage of battery whether more than preset voltage value；Control circuit, is used for
When the voltage of battery is less than or equal to preset voltage value, charging current is adjusted to default first charging current；Control circuit
It is additionally operable to, when the voltage of battery is more than preset voltage value, charging current be adjusted to default second charging current, to control to move
The controller of dynamic terminal is opened, and the charge parameter of battery is adjusted by controller, and control circuit is according to charge parameter to battery
It is charged.
Wherein, detect that circuit includes comparator, the first input end of comparator is input into the voltage of battery, the second of comparator
Input voltage of the input with preset voltage value, the outfan of comparator connects the control end of current source, the output of comparator
Hold for exporting the first output signal or the second output signal, wherein, the first output signal is less than or equal to for the voltage of battery
The signal exported during preset voltage value, the signal that the second output signal is exported when being more than preset voltage value for the voltage of battery；Control
Specifically for when the first output signal of comparator is received, control control circuit adjusts charging current to default to circuit processed
First charging current；And when the second output signal of comparator is received, control control circuit by charging current adjust to
Default second charging current.
Wherein, detect that circuit also includes linear voltage drop circuit, its input connection charging inlet, its outfan connection is compared
Second input of device；Linear voltage drop circuit specifically for by charging inlet voltage conversion into the voltage with predeterminated voltage, and
It is input into the second input of comparator.
Wherein, preset voltage value is 3V.
Wherein, the first charging current is 100mA, and the second charging current is 500mA.
The invention has the beneficial effects as follows：It is different from the situation of prior art, the charging method bag of the mobile terminal of the present invention
Include：Whether the voltage of detection battery is more than preset voltage value；When the voltage of battery is less than or equal to preset voltage value, by the
One control circuit adjusts charging current to default first charging current；When the voltage of battery is more than preset voltage value, pass through
First control circuit adjusts charging current to default second charging current, is opened with the controller for controlling mobile terminal, and by
Controller is charged adjusting the charge parameter of battery using charge parameter to battery；Wherein, the second charging current is more than the
One charging current.By the way, the ginseng that charges is opened and controlled to the chip that mobile terminal is opened by another control circuit
Number, when can avoid low current charge, it is impossible to open the chip of mobile terminal, and during large current charge, easily damages battery
Problem.
Description of the drawings
Fig. 1 is the schematic flow sheet of the embodiment of charging method one of mobile terminal of the present invention
Fig. 2 is voltage x current change schematic diagram in battery charging process；
Fig. 3 is the structural representation of the charging circuit first embodiment of mobile terminal of the present invention；
Fig. 4 is the circuit diagram of the charging current second embodiment of mobile terminal of the present invention.
Specific embodiment
Refering to Fig. 1, Fig. 1 is the schematic flow sheet of the embodiment of charging method one of mobile terminal of the present invention, the method bag
Include：
S11：Whether the voltage of detection battery is more than preset voltage value.
As shown in Fig. 2 Fig. 2 is voltage x current change schematic diagram in battery charging process.It should be noted that following number
It is not the scope for limiting present embodiment by taking a kind of battery of model as an example according to being.
Battery charging process mainly includes following several stages：
1st, the battery activated stage：0 ＜ Vbat (battery voltage, cell voltage)<2V, 30～50mA of charging current,
Minimum current activation battery, prevents inside battery destructurized；
2nd, charging stage (pre-charge)：2V ＜ Vbat<3V, charging current is less than 0.1C；
3rd, constant-current charge (constant current)：3V<Vbat<4.2V, charging current is 0.4C～1C；
4th, constant-voltage charge (constant voltage)：Charging current is gradually decreased, when 0.05C～0.1C is reached, electricity
Pond is full of.
In addition, the voltage opened to the controller (CPU) for controlling charge parameter in mobile terminal is generally 3.2V-
3.4V, therefore, in battery activated stage and charging stage, the controller of mobile terminal cannot work.
Therefore, it can for above-mentioned preset voltage value to be set to 3V.
Optionally, in one embodiment, the voltage of battery can be detected whether more than predeterminated voltage using a comparator
Value.
Specifically, the first input end in comparator is input into the voltage of battery, in the second input input tool of comparator
There is the voltage of preset voltage value, with the magnitude of voltage of comparative cell and the size of preset voltage value.
Optionally, the voltage that preset voltage value is 3V can be provided by a linear voltage drop circuit.Specifically, adopt
Linear voltage drop circuit by charging inlet voltage conversion into the voltage with predeterminated voltage, and be input into comparator second be input into
End.
S12：When the voltage of battery is less than or equal to preset voltage value, charging current is adjusted to pre- by control circuit
If the first charging current.
S13：When the voltage of battery is more than preset voltage value, charging current is adjusted to default second by control circuit
Charging current, is opened with the controller for controlling mobile terminal, and the charge parameter of battery is adjusted by controller, using the ginseng that charges
It is several that battery is charged.
Wherein, the second charging current is more than the first charging current.
Optionally, the control circuit is charging chip.
Wherein, the charging chip includes OTG pins, and charging chip controls the electricity that charges by detecting the level of OTG pins
Stream.Specifically, when the level for detecting OTG pins is low level, charging current is adjusted to into the first charging current, works as detection
To OTG pins level be high level when, charging current is adjusted to into the second charging current.
In the present embodiment, OTG pins can be connected to the outfan of comparator, the signal exported by comparator comes
The level of control OTG pins.
Specifically, the first input end in comparator is input into the voltage of battery, in the second input input tool of comparator
There is the voltage of preset voltage value, and export the first output signal or the second output signal, wherein, the first output signal is battery
Voltage is less than or equal to the signal exported during preset voltage value, when the second output signal is more than preset voltage value for the voltage of battery
The signal of output.
Then S12 can be specially：When the first output signal of comparator is received, control first control circuit will charge
Electric current is adjusted to default first charging current.
Then S13 can be specially：When the second output signal of comparator is received, control first control circuit will charge
Electric current is adjusted to default second charging current.
Optionally, the first charging current is 100mA, and the second charging current is 500mA.
It should be understood that in the embodiment of above-mentioned charging chip, OTG pins are dragged down, charging current is 100mA, energy
Enough ensure safe charging of the battery after putting excessively, but the controller of mobile terminal (CPU) cannot be fully opened, it is likely that cause
The repeated switching of mobile terminal.If OTG pins are raised, charging current is 500mA, and the controller of mobile terminal can be opened
Open, but after battery is crossed and put, the excessive battery of mobile terminal of charging current is generally below 3000mAh, and 500mA is more than 0.1C), hold
It is easily caused battery structure to be destroyed, shortens battery life, and there is potential safety hazard.
Therefore, in the present embodiment, by the level for detecting the voltage of battery to control OTG pins, in the electricity of battery
When pressure is more than preset voltage value, electric current, the control to mobile terminal are adjusted using the output voltage control control circuit of comparator
Device is powered, so that the controller of mobile terminal is opened, and charge parameter is controlled by controller, and then battery is filled
Electricity.
Prior art is different from, the charging method of the mobile terminal of present embodiment includes：Whether the voltage of detection battery
More than preset voltage value；When the voltage of battery is less than or equal to preset voltage value, by first control circuit by charging current
Adjust to default first charging current；When the voltage of battery is more than preset voltage value, will be charged by first control circuit electric
Stream is adjusted to default second charging current, is opened with the controller for controlling mobile terminal, and filling for battery is adjusted by controller
Electrical quantity, is charged using charge parameter to battery；Wherein, the second charging current is more than the first charging current.By above-mentioned
Charge parameter is opened and controlled to mode, the chip that mobile terminal is opened by another control circuit, and small current can be avoided to fill
When electric, it is impossible to open the chip of mobile terminal, and during large current charge, the problem of battery is easily damaged.
Refering to Fig. 3, Fig. 3 is the structural representation of the charging circuit first embodiment of mobile terminal of the present invention.The charging
Circuit includes control circuit 31 and detection circuit 32.
Wherein, the connection of control circuit 31 charging inlet Vbus, and battery is charged.
Detection circuit 32, for detecting the voltage of battery whether more than preset voltage value.
Control circuit 31, for when the voltage of battery is less than or equal to preset voltage value, charging current being adjusted to pre-
If the first charging current.
It should be understood that control circuit 31 can be existing charging circuit, join in the charging for being not received by controller
During number, it is charged using default first charging current.
Control circuit 21 is additionally operable to when the voltage of battery is more than preset voltage value, and charging current is adjusted to default second
Charging current, is opened with the controller for controlling mobile terminal, and the charge parameter of battery is adjusted by controller, the first control electricity
Road is charged according to charge parameter to battery.
Refering to Fig. 4, Fig. 4 is the circuit diagram of the charging current second embodiment of mobile terminal of the present invention, the charging
Circuit includes：
Charging chip (controller), its three pins connect respectively the grid of transistor Q1, Q2, Q3.Here with
As a example by NMOS, the source electrode connection charging inlet Vbus of Q1, the drain electrode of drain electrode connection Q2, the source electrode of Q2 connects the drain electrode of Q3, Q3's
Source ground.The source electrode of Q2 is connected to battery (BAT) by an inductance L and a resistance Rsense, while being for mobile terminal
System power supply.
When the OTG pins of charging chip are low level, charging chip controls the charging of above-mentioned Q1 → Q2 → L → R → BAT and returns
The electric current on road is 100mA；When the OTG pins of charging chip are high level, charging chip controls above-mentioned Q1 → Q2 → L → R → BAT
Charge circuit electric current be 500mA.
The first input end connection battery of comparator, to be input into cell voltage, the second input input one of comparator is pre-
If voltage.Specifically, the input connection charging inlet of linear voltage drop circuit LDO, the second of its outfan connection comparator is defeated
Enter end, linear voltage drop circuit, into the voltage with predeterminated voltage, and is input into comparing specifically for by charging inlet voltage conversion
Second input of device.Wherein, the predeterminated voltage is 3V.
The outfan connection OTG pins of comparator, to control the level of OTG pins.
After system is opened, i.e. mobile terminal chip (AP) work can directly control the charge parameter of charging chip.
Specifically, when charger is inserted, the reference voltage Vref for exporting 3V is given to comparator, comparator detection battery electricity
Pressure, if cell voltage is less than 3V, exports low level, and OTG feet are dragged down, so as to be input into current limliting to 100mA, it is ensured that battery exists
Cross in the state of putting and charged with the electric current less than 0.1C, prevent battery structure to be destroyed, safe charging；If cell voltage is higher than
3V, then comparator output high level, OTG feet are drawn high, so as to be input into current limliting 500mA, it is ensured that AP can be fully opened.AP is opened
Qi Hou, then whole charging process controlled by AP via I2C interfaces, do not affect follow-up constant current and constant-voltage charge.
It is different from prior art, present embodiment increased on the basis of existing technology detection circuit, by detection
The voltage that battery is exported according to testing result is controlling the work of charging chip.When can avoid low current charge, it is impossible to open
The chip of mobile terminal, and during large current charge, easily damage the problem of battery.
Embodiments of the present invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, is included within the scope of the present invention.
Claims (10)
1. a kind of charging method of mobile terminal, it is characterised in that include：
Whether the voltage of detection battery is more than preset voltage value；
When the voltage of the battery is less than or equal to preset voltage value, charging current is adjusted to default the by control circuit
One charging current；
When the voltage of the battery is more than the preset voltage value, charging current is adjusted to default by the control circuit
Second charging current, is opened with the controller for controlling the mobile terminal, and filling for the battery is adjusted by the controller
Electrical quantity, is charged using the charge parameter to the battery；
Wherein, second charging current is more than first charging current.
2. charging method according to claim 1, it is characterised in that
Whether the voltage of the detection battery is more than preset voltage value, including：
The voltage of the battery is input in the first input end of comparator, there is institute in the second input input of the comparator
The voltage of preset voltage value is stated, and exports the first output signal or the second output signal, wherein, first output signal is institute
The voltage for stating battery is less than or equal to the signal exported during preset voltage value, and second output signal is the voltage of the battery
The signal exported during more than preset voltage value；
When the voltage in the battery is less than or equal to preset voltage value, charging current is adjusted to pre- by control circuit
If the first charging current, including：
When the first output signal of the comparator is received, control the control circuit and charging current is adjusted to default the
One charging current；
The voltage in the battery be more than the preset voltage value when, by the control circuit by charging current adjust to
Default second charging current, including：
When the second output signal of the comparator is received, control the control circuit and charging current is adjusted to default the
Two charging currents.
3. charging method according to claim 2, it is characterised in that
The the second input voltage of the input with the preset voltage value in the comparator, including：
Using linear voltage drop circuit by charging inlet voltage conversion into the voltage with the predeterminated voltage, and it is input into the ratio
Compared with the second input of device.
4. charging method according to claim 3, it is characterised in that
The preset voltage value is 3V.
5. charging method according to claim 1, it is characterised in that
First charging current is 100mA, and second charging current is 500mA.
6. a kind of charging circuit of mobile terminal, it is characterised in that include：
Detection circuit, for detecting the voltage of battery whether more than preset voltage value；
Control circuit, for when the voltage of the battery is less than or equal to preset voltage value, charging current is adjusted to default
First charging current；
The control circuit is additionally operable to when the voltage of the battery is more than the preset voltage value, and charging current is adjusted to pre-
If the second charging current, opened with the controller for controlling the mobile terminal, and the battery is adjusted by the controller
Charge parameter, control circuit is charged according to the charge parameter to the battery.
7. charging circuit according to claim 6, it is characterised in that
The detection circuit includes comparator, and the first input end of the comparator is input into the voltage of the battery, the comparison
The second input voltage of the input with the preset voltage value of device, the outfan of the comparator connects the control of current source
End, the outfan of the comparator is used for the first output signal of output or the second output signal, wherein, first output signal
The signal that exports when being less than or equal to preset voltage value for the voltage of the battery, second output signal is the battery
Voltage is more than the signal exported during preset voltage value；
The control circuit will specifically for when the first output signal of the comparator is received, controlling the control circuit
Charging current is adjusted to default first charging current；And
When the second output signal of the comparator is received, control the control circuit and charging current is adjusted to default the
Two charging currents.
8. charging circuit according to claim 7, it is characterised in that
The detection circuit also includes linear voltage drop circuit, and its input connection charging inlet, its outfan connects the comparison
Second input of device；
The linear voltage drop circuit, into the voltage with the predeterminated voltage, and is input into specifically for by charging inlet voltage conversion
To the second input of the comparator.
9. charging circuit according to claim 8, it is characterised in that
The preset voltage value is 3V.
10. charging circuit according to claim 6, it is characterised in that
First charging current is 100mA, and second charging current is 500mA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611233064.1A CN106602655A (en) | 2016-12-28 | 2016-12-28 | Charging method and charging circuit of mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611233064.1A CN106602655A (en) | 2016-12-28 | 2016-12-28 | Charging method and charging circuit of mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106602655A true CN106602655A (en) | 2017-04-26 |
Family
ID=58604829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611233064.1A Pending CN106602655A (en) | 2016-12-28 | 2016-12-28 | Charging method and charging circuit of mobile terminal |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448673A (en) * | 2018-03-29 | 2018-08-24 | 维沃移动通信有限公司 | A charging method, mobile terminal and charger |
| CN115208019A (en) * | 2022-07-22 | 2022-10-18 | 珠海冠宇电源有限公司 | Battery activation method and device, electronic equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070257635A1 (en) * | 2006-05-08 | 2007-11-08 | Jongwoon Yang | Method of charging rechargeable battery and protection circuit for rechargeable battery |
| CN102324580A (en) * | 2011-05-20 | 2012-01-18 | 惠州Tcl移动通信有限公司 | Mobile phone as well as charging circuit and method of cell thereof |
| CN105375544A (en) * | 2014-08-29 | 2016-03-02 | 重庆重邮信科通信技术有限公司 | Low-battery battery charging method and power management integrated circuit |
| CN105720645A (en) * | 2016-04-11 | 2016-06-29 | 浙江德景电子科技有限公司 | Charging method, charging device and charger |
| CN105743185A (en) * | 2016-04-28 | 2016-07-06 | 青岛海信移动通信技术股份有限公司 | Mobile terminal and charging method |
| CN106207296A (en) * | 2016-08-25 | 2016-12-07 | 上海传英信息技术有限公司 | Charging method |
-
2016
- 2016-12-28 CN CN201611233064.1A patent/CN106602655A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070257635A1 (en) * | 2006-05-08 | 2007-11-08 | Jongwoon Yang | Method of charging rechargeable battery and protection circuit for rechargeable battery |
| CN102324580A (en) * | 2011-05-20 | 2012-01-18 | 惠州Tcl移动通信有限公司 | Mobile phone as well as charging circuit and method of cell thereof |
| CN105375544A (en) * | 2014-08-29 | 2016-03-02 | 重庆重邮信科通信技术有限公司 | Low-battery battery charging method and power management integrated circuit |
| CN105720645A (en) * | 2016-04-11 | 2016-06-29 | 浙江德景电子科技有限公司 | Charging method, charging device and charger |
| CN105743185A (en) * | 2016-04-28 | 2016-07-06 | 青岛海信移动通信技术股份有限公司 | Mobile terminal and charging method |
| CN106207296A (en) * | 2016-08-25 | 2016-12-07 | 上海传英信息技术有限公司 | Charging method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448673A (en) * | 2018-03-29 | 2018-08-24 | 维沃移动通信有限公司 | A charging method, mobile terminal and charger |
| CN115208019A (en) * | 2022-07-22 | 2022-10-18 | 珠海冠宇电源有限公司 | Battery activation method and device, electronic equipment and storage medium |
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