CN109496383A - A kind of charging of battery and balancing circuitry - Google Patents
A kind of charging of battery and balancing circuitry Download PDFInfo
- Publication number
- CN109496383A CN109496383A CN201880001875.XA CN201880001875A CN109496383A CN 109496383 A CN109496383 A CN 109496383A CN 201880001875 A CN201880001875 A CN 201880001875A CN 109496383 A CN109496383 A CN 109496383A
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- CN
- China
- Prior art keywords
- battery
- switching tube
- switch
- tube
- balancing circuitry
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of charging of battery and balancing circuitry are disclosed, for the voltage between charging and balancing battery.Battery charging and balancing circuitry include: first switch tube, second switch, third switching tube, the 4th switching tube, capacitor, the first battery and the second battery；Wherein, the first switch tube, second switch, third switching tube and the 4th switching tube constitute cascaded structure；First battery is connected with second battery, and first battery is connected in parallel on the both ends for the cascaded structure that the first switch tube and second switch are constituted, second battery is connected in parallel on the both ends for the cascaded structure that the third switching tube and the 4th switching tube are constituted；The capacitor is connected in parallel on the both ends of the cascaded structure of the second switch and third switching tube composition.
Description
Technical field
This application involves circuit field, in particular to a kind of battery charging and balancing circuitry.
Background technique
With the fast development of New Energy Industry, either new-energy automobile or extensive stored energy application, it is required to big
Amount single battery is used in series, but since the inconsistency of series connection single battery has seriously affected effective appearance of power battery pack
Amount, cycle life, safety and economy make power pond group be difficult to reach such requirement.The consistency of single battery determines
Performance, service life and the safety of series-connected cell group, as long as there is the degradation of a single battery, entire series-connected cell group
Performance all will be deteriorated.Common situations have: wherein having the capacity of a single battery relatively low, the result is that this monomer electricity when charging
Pond reaches charging upper limit blanking voltage first, and while discharging reaches electric discharge low cutoff voltage first, then this single battery
Capacity determine the capacity of entire series-connected cell group；If original state has a low voltage of a single battery, when charging this
A single battery is not achieved blanking voltage and cannot be full of, this single battery arrives first at electric discharge cut-off, the monomer when electric discharge
Battery does not have fully charged and electricity is discharged in advance, and the actually available electricity of series-connected cell group is determined by the capacity of this single battery；
If the polarization impedance of single battery and internal resistance are higher, voltage decline is also fast when voltage rises fast, electric discharge when charging, with regard to certain
It is exactly the off-capacity of this single battery, load capacity decline, temperature drift when charge and discharge from the point of view of the performance once tested.
The consistency of single battery is improved in battery manufacturing process there are also sizable difficulty and is needed larger investment and is incited somebody to action
The manufacturing expense for increasing substantially battery causes battery price high and is unfavorable for the fast development of related industry.Current battery manufacture
Battery with two side terminals improves using stringent screening technique progress battery matching in quotient or battery combination factory.Even if being stringent
Battery after matching will show visible difference, therefore use battery matched after the initial stage of circulation or multiple circulation
Validity is unsatisfactory；The operating condition and environment of battery can also have an impact consistency, with the increasing of circulating battery number
Adding its consistency to change degree has undetectability.Therefore, the consistency of single battery is opposite again, overemphasizes manufacture
The consistency of environment in consistency or use process in the process, can only be to improve dynamical system cost as cost.
Due to the limitation of manufacturing process, when single battery series connection is in groups in use, each single battery has differences, it is easy
Individual monomers over-charging of battery and over-discharge phenomenon occurs, causes the voltage of each single battery inconsistent, to influence whole series connection
Battery pack normal use shortens the service life of whole series-connected cell group.
Summary of the invention
The embodiment of the present application provides a kind of charging of battery and balancing circuitry, for the electricity between charging and balancing battery
Pressure.
The application first aspect provides a kind of charging of battery and balancing circuitry, and battery charging and balancing circuitry include:
First switch tube, second switch, third switching tube, the 4th switching tube, capacitor, the first battery and the second battery；
Wherein, the first switch tube, second switch, third switching tube and the 4th switching tube constitute cascaded structure；
First battery is connected with second battery, and first battery is connected in parallel on the first switch tube and
The both ends for the cascaded structure that two switching tubes are constituted, second battery is connected in parallel on the third switching tube and the 4th switching tube is constituted
Cascaded structure both ends；
The capacitor is connected in parallel on the both ends of the cascaded structure of the second switch and third switching tube composition.
In a kind of possible embodiment, battery charging and balancing circuitry further include the first controller, and described first
Controller is connect with the first switch tube, second switch, third switching tube and the 4th switching tube respectively, is configured as point
Turning on and off for the first switch tube, second switch, third switching tube and the 4th switching tube is not controlled.
In a kind of possible embodiment, first controller is configured as being higher than institute in the voltage of first battery
When stating the second battery, controls the first switch tube and third switching tube is open-minded, to the capacitor charging；In first electricity
Pond and when the capacitor equipressure, controls the first switch tube and the shutdown of third switching tube, and control the second switch and
4th switching tube is open-minded, to pass through the capacitor to second battery discharge.
In a kind of possible embodiment, first controller is configured as being higher than institute in the voltage of second battery
When stating the first battery, controls the second switch and the 4th switching tube is open-minded, to the capacitor charging；In second electricity
Pond and when the capacitor equipressure, controls the second switch and the shutdown of the 4th switching tube, and control the first switch tube and
Third switching tube is open-minded, to pass through the capacitor to first battery discharge.
In a kind of possible embodiment, the battery charging and balancing circuitry further include the 5th switching tube, the 6th switch
Pipe and second controller；
5th switching tube, the 6th switching tube and first switch tube constitute cascaded structure；
The second controller is connect with the 5th switching tube, the 6th switching tube respectively, is configured as in charging shape
It when state, controls the 5th switching tube and the 6th switching tube is open-minded, and in discharge condition, control the 5th switching tube and the
The shutdown of six switching tubes.
In a kind of possible embodiment, the second controller is configured as being determined as when detecting input signal
Charged state；When detecting output signal, it is determined as discharge condition.
In a kind of possible embodiment, the battery charging and balancing circuitry further include dsm controller, the electricity consumption
Controller is connect with first battery and the second battery respectively, is configured as controlling in first battery and the second battery
At least one discharges.
In a kind of possible embodiment, the switching tube includes field effect transistor FET.
In a kind of possible embodiment, the field effect transistor includes MOS memory MOSFET
Or junction field effect transistor JFET.
In a kind of possible embodiment, the MOS memory MOSFET include N-type MOSFET or
Person's p-type MOSFET.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that battery charging and balancing circuitry
It include: first switch tube, second switch, third switching tube, the 4th switching tube, capacitor, the first battery and the second battery；Its
In, the first switch tube, second switch, third switching tube and the 4th switching tube constitute cascaded structure；First battery
It connects with second battery, and first battery is connected in parallel on the tandem junction that the first switch tube and second switch are constituted
The both ends of structure, second battery are connected in parallel on the both ends for the cascaded structure that the third switching tube and the 4th switching tube are constituted；Institute
State the both ends that capacitor is connected in parallel on the cascaded structure of the second switch and third switching tube composition.Therefore, when the first battery and
When unbalanced state occurs in the voltage of second battery, opened by first switch tube, second switch, third switching tube and the 4th
Turning on and off for pipe high frequency is closed, thus the carry out charge and discharge to capacitor high frequency, to balance on the first battery and the second battery
Voltage extends the service life of battery so that the voltage of single battery is consistent.
Detailed description of the invention
Fig. 1 is a structural schematic diagram of battery provided by the present application charging and balancing circuitry；
Fig. 2 is another structural schematic diagram of battery provided by the present application charging and balancing circuitry；
Fig. 3 is another structural schematic diagram of battery provided by the present application charging and balancing circuitry；
Fig. 4 is another structural schematic diagram of battery provided by the present application charging and balancing circuitry.
Specific embodiment
This application provides a kind of charging of battery and balancing circuitrys, for the voltage between charging and balancing battery.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those skilled in the art's every other implementation obtained without making creative work
Example, shall fall within the protection scope of the present invention.
The description and claims of this application and term " first ", " second ", " third ", " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so that the embodiments described herein can be in addition to illustrating herein
Or the sequence other than the content of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit
In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce
The other step or units of product or equipment inherently.
Referring to Fig. 1, for battery provided by the present application charging and balancing circuitry 100, battery charging and balancing circuitry 100
It specifically includes:
First switch tube 101, second switch 102, third switching tube 103, the 4th switching tube 104, capacitor 105, first
Battery 106 and the second battery 107；
Wherein, the first switch tube 101, second switch 102, third switching tube 103 and the 4th switching tube 104 constitute string
It is coupled structure；
First battery 106 is connected with second battery 107, and first battery 106 is connected in parallel on the first switch tube 101
The both ends of the cascaded structure constituted with second switch 102, second battery 107 are connected in parallel on the third switching tube 103 and the 4th
The both ends for the cascaded structure that switching tube 104 is constituted；
The capacitor 105 is connected in parallel on the both ends of the cascaded structure of the second switch 102 and the composition of third switching tube 103.
Based on the structure of above-mentioned battery charging and balancing circuitry 100, when the voltage of the first battery 106 and the second battery 107
When there is unbalanced state, first switch tube 101, second switch 102, third switching tube 103 and the 4th switch can be passed through
104 high frequency of pipe turns on and off, thus the carry out charge and discharge to capacitor high frequency, to balance the first battery 106 and the second battery
Voltage on 107 extends the service life of battery so that the voltage of single battery is consistent.
In one embodiment, as shown in Fig. 2, battery charging and balancing circuitry 100 further include the first controller 201, it should
First controller 201 respectively with the first switch tube 101, second switch 102, third switching tube 103 and the 4th switching tube 104
Connection is configured to control the first switch tube 101, second switch 102, third switching tube 103 and the 4th switch
Pipe 104 turns on and off.
In one embodiment, which is configured as being higher than second electricity in the voltage of first battery 106
It when pond 107, controls the first switch tube 101 and third switching tube 103 is open-minded, to charge to the capacitor 105；Until capacitor 105
On voltage and the first battery 106 voltage it is the same.In first battery 106 and isobaric capacitor 105, controls this and first open
It closes pipe 101 and third switching tube 103 to turn off, and controls the second switch 102 and the 4th switching tube 104 is open-minded, be equivalent to electricity
Appearance is connected to the second battery 107, since the voltage on the second battery 107 is lower than the voltage of capacitor 105, can pass through
The capacitor 105 discharges to second battery 107.
In one embodiment, which is configured as being higher than first electricity in the voltage of second battery 107
It when pond 106, controls the second switch 102 and the 4th switching tube 104 is open-minded, to charge to the capacitor 105；Until capacitor 105
On voltage and the second battery 107 voltage it is the same.In second battery 107 and isobaric capacitor 105, controls this and second open
Pipe 102 and the shutdown of the 4th switching tube 104 are closed, and controls the first switch tube 101 and third switching tube 103 is open-minded, is equivalent to electricity
Hold 105 and is connected to the first battery 106, since the voltage on the first battery 106 is lower than the voltage of capacitor 105, Ke Yitong
The capacitor 105 is crossed to discharge to first battery 106.
When the first switch tube 101 of entire circuit, second switch 102, third switching tube 103 and the 4th switching tube 104
It ceaselessly turns on and off, transient process described above becomes a continuous mode, as long as at this time occurring any
It turns on and off, capacitor 105 will ceaselessly balance the voltage on the first battery 106 and the second battery 107.The frequency opened is got over
Height, the first battery 106 and the pressure difference of the second battery 107 can be faster it is consistent.
In one embodiment, as shown in figure 3, battery charging and balancing circuitry 100 further include the 5th switching tube 301, the
Six switching tubes 302 and second controller 303；
5th switching tube 301, the 6th switching tube 302 and first switch tube 101 constitute cascaded structure；
The second controller 303 is connect with the 5th switching tube 301, the 6th switching tube 302 respectively, is configured as filling
It when electricity condition, controls the 5th switching tube 301 and the 6th switching tube 302 is open-minded, and in discharge condition, control the 5th switch
Pipe 301 and the shutdown of the 6th switching tube 302.
In one embodiment, which is configured as when detecting input signal, is determined as the shape that charges
State, to control the 5th switching tube 301 and the 6th switching tube 302 is open-minded；When detecting output signal, it is determined as the shape that discharges
State, to control the 5th switching tube 301 and the shutdown of the 6th switching tube 302.The input signal can be access external power supply into
The electric signal that row charged state generates, the output signal can be the electric signal that access external equipment carries out discharge condition generation.
It should be noted that battery charging provided by the present application and balancing circuitry 100 are not only suitable for balancing under charged state
Voltage between battery, the voltage being also applied under discharge condition between balancing battery apply also for not charging and also not discharge
Voltage under state between balancing battery；The circuit structure of periphery is not limited specifically herein.As long as when the first battery 106 and second
When unbalanced state occurs in the voltage of battery 107, by controlling first switch tube 101, second switch 102, third respectively
High frequency turns on and off with the carry out charge and discharge to capacitor high frequency, to reach between switching tube 103 and the 4th switching tube 104
Balance the voltage on the first battery 106 and the second battery 107.For first switch tube 101, second switch 102, third switch
How high frequency turns on and off between pipe 103 and the 4th switching tube 104, can refer in above-described embodiment about the first battery
106 voltage is higher than/being equal to/lower than under each state such as second battery 107, and what the turning on and off of switch tube was carried out retouches
It states, details are not described herein again.
In one embodiment, as shown in figure 4, battery charging and balancing circuitry 100 further include dsm controller 401, it should
Dsm controller 401 is connect with first battery 106 and the second battery 107 respectively, is configured as controlling first battery 106
With at least one electric discharge in the second battery 107.In discharge process, when voltage injustice occur in the first battery 106 and the second battery 107
When the state of weighing apparatus.Capacitor 105 is equally that can carry charge, to reach the first battery 106 of balance and the second battery 107
Voltage effect.Therefore, when independently electric discharge, entire circuit can also play the role of balance.
Wherein electric discharge can be subdivided into, entire battery pack electric discharge and single battery electric discharge.
For example, the first discharge mode, is the electric discharge of the second battery 107, that is to say, that discharge voltage can be the second battery
107.This when, the first battery 106 did not had direct power supply function to equipment, but the effect of capacitor 105 can carry electricity
Lotus gives the second battery 107, so that the voltage on the first battery 106 and the second battery 107 is consistent.
Second of discharge mode is entire battery pack electric discharge, this when, discharge voltage was the first battery 106 and the second electricity
The effect of the sum of the voltage in pond 107, capacitor 105 is also the charge for carrying the first battery 106 and 107 both sides of the second battery, allows electricity
The voltage of pond group keeps balance.
Therefore this structure completely can there are two types of voltage mode to electrical equipment connect, bigger provides the easy of user
The property used.
In one embodiment, which includes field effect transistor FET.
In one embodiment, which includes MOS memory MOSFET or junction type field
Effect transistor JFET.
In one embodiment, MOS memory MOSFET includes N-type MOSFET or p-type
MOSFET。
It should be noted that in the above-described embodiments, all emphasizing particularly on different fields to the description of each embodiment, in some embodiment
The part being not described in may refer to the associated description of other embodiments.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that each process in flowchart and/or the block diagram can be realized by computer program instructions
And/or the combination of the process and/or box in box and flowchart and/or the block diagram.It can provide these computer programs to refer to
Enable the processor of general purpose computer, special purpose computer, embedded computer or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although each embodiment of the invention has been described, created once a person skilled in the art knows basic
Concept, then additional changes and modifications may be made to these embodiments.So it includes each that the following claims are intended to be interpreted as
Embodiment and all change and modification for falling into the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the invention is also intended to include including these modification and variations.
Claims (10)
1. a kind of battery charging and balancing circuitry characterized by comprising
First switch tube, second switch, third switching tube, the 4th switching tube, capacitor, the first battery and the second battery；
Wherein, the first switch tube, second switch, third switching tube and the 4th switching tube constitute cascaded structure；
First battery is connected with second battery, and first battery is connected in parallel on the first switch tube and second and opens
The both ends for the cascaded structure that pipe is constituted are closed, second battery is connected in parallel on the string that the third switching tube and the 4th switching tube are constituted
It is coupled the both ends of structure；
The capacitor is connected in parallel on the both ends of the cascaded structure of the second switch and third switching tube composition.
2. battery charging according to claim 1 and balancing circuitry, which is characterized in that the battery charging and balancing circuitry
Further include the first controller, first controller respectively with the first switch tube, second switch, third switching tube and
The connection of four switching tubes is configured to control the first switch tube, second switch, third switching tube and the 4th switch
Pipe turns on and off.
3. battery charging according to claim 2 and balancing circuitry, which is characterized in that first controller is configured as
When the voltage of first battery is higher than second battery, controls the first switch tube and third switching tube is open-minded, with
To the capacitor charging；In first battery and the capacitor equipressure, the first switch tube and third switching tube are controlled
Shutdown, and control the second switch and the 4th switching tube is open-minded, with by the capacitor to second battery discharge.
4. battery charging according to claim 2 and balancing circuitry, which is characterized in that first controller is configured as
When the voltage of second battery is higher than first battery, controls the second switch and the 4th switching tube is open-minded, with
To the capacitor charging；In second battery and the capacitor equipressure, the second switch and the 4th switching tube are controlled
Shutdown, and control the first switch tube and third switching tube is open-minded, with by the capacitor to first battery discharge.
5. battery charging according to any one of claims 1 to 4 and balancing circuitry, which is characterized in that the battery charging
It further include the 5th switching tube, the 6th switching tube and second controller with balancing circuitry；
5th switching tube, the 6th switching tube and first switch tube constitute cascaded structure；
The second controller is connect with the 5th switching tube, the 6th switching tube respectively, is configured as in charged state,
It controls the 5th switching tube and the 6th switching tube is open-minded, and in discharge condition, control the 5th switching tube and the 6th and open
Close pipe shutdown.
6. battery charging according to claim 5 and balancing circuitry, which is characterized in that the second controller is configured as
When detecting input signal, it is determined as charged state；When detecting output signal, it is determined as discharge condition.
7. battery charging according to any one of claims 1 to 4 and balancing circuitry, which is characterized in that the battery charging
It further include dsm controller with balancing circuitry, the dsm controller is connect with first battery and the second battery respectively,
It is configured as controlling in first battery and the second battery at least one electric discharge.
8. battery charging according to any one of claims 1 to 4 and balancing circuitry, which is characterized in that the switching tube packet
Include field effect transistor FET.
9. battery charging according to claim 8 and balancing circuitry, which is characterized in that the field effect transistor includes gold
Belong to oxide field-effect transistor MOSFET or junction field effect transistor JFET.
10. battery charging according to claim 9 and balancing circuitry, which is characterized in that the metal oxide field effect
Transistor MOSFET includes N-type MOSFET or p-type MOSFET.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/110821 WO2020077590A1 (en) | 2018-10-18 | 2018-10-18 | Battery charging and balancing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109496383A true CN109496383A (en) | 2019-03-19 |
Family
ID=65713835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880001875.XA Pending CN109496383A (en) | 2018-10-18 | 2018-10-18 | A kind of charging of battery and balancing circuitry |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109496383A (en) |
| WO (1) | WO2020077590A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020077590A1 (en) * | 2018-10-18 | 2020-04-23 | 深圳维普创新科技有限公司 | Battery charging and balancing circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074748A (en) * | 2009-11-23 | 2011-05-25 | 登丰微电子股份有限公司 | Battery voltage balancing device and battery charging device |
| CN102651563A (en) * | 2011-02-25 | 2012-08-29 | 香港理工大学 | Battery energy balancing circuit |
| CN105048602A (en) * | 2015-08-31 | 2015-11-11 | 矽力杰半导体技术(杭州)有限公司 | Battery balancing circuit and battery device |
| CN106786998A (en) * | 2017-02-24 | 2017-05-31 | 维沃移动通信有限公司 | A kind of control method of charge-discharge circuit, mobile terminal and battery charging and discharging |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109496383A (en) * | 2018-10-18 | 2019-03-19 | 深圳维普创新科技有限公司 | A kind of charging of battery and balancing circuitry |
-
2018
- 2018-10-18 CN CN201880001875.XA patent/CN109496383A/en active Pending
- 2018-10-18 WO PCT/CN2018/110821 patent/WO2020077590A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074748A (en) * | 2009-11-23 | 2011-05-25 | 登丰微电子股份有限公司 | Battery voltage balancing device and battery charging device |
| CN102651563A (en) * | 2011-02-25 | 2012-08-29 | 香港理工大学 | Battery energy balancing circuit |
| CN105048602A (en) * | 2015-08-31 | 2015-11-11 | 矽力杰半导体技术(杭州)有限公司 | Battery balancing circuit and battery device |
| CN106786998A (en) * | 2017-02-24 | 2017-05-31 | 维沃移动通信有限公司 | A kind of control method of charge-discharge circuit, mobile terminal and battery charging and discharging |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020077590A1 (en) * | 2018-10-18 | 2020-04-23 | 深圳维普创新科技有限公司 | Battery charging and balancing circuit |
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| Publication number | Publication date |
|---|---|
| WO2020077590A1 (en) | 2020-04-23 |
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Application publication date: 20190319 |