CN102646998B - System for charge and discharge of battery pack - Google Patents
System for charge and discharge of battery pack Download PDFInfo
- Publication number
- CN102646998B CN102646998B CN201110119266.4A CN201110119266A CN102646998B CN 102646998 B CN102646998 B CN 102646998B CN 201110119266 A CN201110119266 A CN 201110119266A CN 102646998 B CN102646998 B CN 102646998B
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- Prior art keywords
- current
- circuit
- occuring
- circuit unit
- sensing circuit
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- 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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
- H02J7/00718—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current in response to charge current gradient
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a system for charging and discharge of a battery pack. The charge and discharge system comprises a current generating circuit unit having multiple current generating circuits for receiving power and generating currents; a power transmission unit distributing power input during a charging process, transmitting the distributed power to the multiple current generating circuits and transmitting currents supplied to the mulitple current generating circuits during a discharging process to a power supply unit; a first current sensing circuit unit sensing currents output from the multiple current generating circuits; a second current sensing circuit unit sensing the total currents outputs by the current generating circuit unit; a current control circuit unit comparing the current sensed by the first current sensing circuit unit and the current sensed by the second current sensing circuit unit and controlling each current generating circuit so as to keep a current balance among the current generating circuits.
Description
The application requires in priority and the rights and interests of the 10-2011-0014661 korean patent application of submission on February 18th, 2011, and the full content of this application is contained in this by reference.
Technical field
Embodiments of the invention relate to a kind of charging and discharging system of power brick.
Background technology
Along with the desired specification of secondary cell becomes stricter, for the manufacture of correspondingly becoming stricter with the desired specification of output current of testing the charging and discharging device of secondary cell.At present, developing and manufacturing and can produce the charging and discharging device that maximum current is about hundreds of ampere (A).The standard of the desired specification of output current of estimating in the future charging and discharging device is higher.In order to meet the desired specification of output current, must need design and development can meet the electric current generation module of the basic specification of high electric current and high current precision.
Can utilize for example MOSFET to realize high current charges and the electric discharge device that can meet desired specification.Yet along with desired specification becomes stricter, the cost of various assemblies can sharply increase, thereby increased the cost burden of manufacturing circuit.
In order to overcome these problems, can be by low current generation module be connected to each other to produce high electric current.In this case, because the problem that the synchronous or single current of each low current generation module is existed in controlling can cause the current imbalance between each low current generation module, and can apply overload to particular module, thereby the stability of charging and discharging circuit and life-span are had a negative impact.Alternatively, in the situation that controlling individual module separately, by overall current value modules and that estimate all modules.Therefore,, while there is error when the current value sensing from particular module, can reduce the precision of the overall current value of all modules.
Summary of the invention
Embodiments of the invention provide a kind of charging and discharging system of power brick, and described charging and discharging system can be guaranteed the current value precision of high electric current in the current balance type stably keeping between electric current generation module.
According to embodiments of the invention, a kind of charging and discharging system of power brick is provided, described charging and discharging system comprises: current occuring circuit unit, comprises a plurality of current occuring circuits of received power and generation current; Power delivery unit, distributes the power of inputting between charge period, and the power delivery after distributing is arrived to described a plurality of current occuring circuits, and at interdischarge interval, the current delivery that is fed to described a plurality of current occuring circuits is arrived to power subsystem; The first current sensing circuit unit, sensing is from the electric current of described a plurality of current occuring circuit outputs; The second current sensing circuit unit, sensing is from the total current of current occuring circuit unit output; Current control circuit unit, by the first current sensing circuit unit senses to electric current and the second current sensing circuit unit senses to total current compare, and can control each current occuring circuit, thereby keep the current balance type between each current occuring circuit.
Described charging and discharging system can also comprise data processing unit, described data processing unit by the second current sensing circuit unit senses to the analogue data of total current be converted to numerical data.
Described current control circuit unit can comprise a plurality of current control circuits that are arranged on respectively in described a plurality of current occuring circuit, and described power delivery unit can be by described digital data transfer to each current control circuit.
The first current sensing circuit unit can comprise a plurality of current sensing circuits, and the current feedback that each current sensing circuit can sense each current sensing circuit is to each current control circuit.
The electric current that described a plurality of current control circuit can sense each current sensing circuit of described numerical data and the first current sensing circuit unit compares, and can control each current occuring circuit, thereby the value of the electric current of current occuring circuit generation is equal to each other.
In addition, described a plurality of current occuring circuit can be connected in parallel with each other, described a plurality of current sensing circuit can be arranged on electric current output that described a plurality of current occuring circuit produces on the path of process, and the second current sensing circuit unit can be arranged on the path merging from the electric current of described a plurality of current occuring circuits outputs.
Described current control circuit unit can comprise a plurality of current control circuits that are arranged on respectively inside, described current occuring circuit unit, and described power delivery unit can by described the second current sensing circuit unit senses to total current be transferred to described a plurality of current control circuit.
The first current sensing circuit unit can comprise a plurality of current sensing circuits, and the current feedback that described a plurality of current sensing circuit can sense each current sensing circuit is to described a plurality of current control circuits.
Described current control circuit can by described the second current sensing circuit unit senses to total current and the electric current that senses of described a plurality of current sensing circuits of described the first current sensing circuit unit compare, and control each current occuring circuit, thereby the value of the electric current of described current occuring circuit generation is equal to each other.
Described a plurality of current occuring circuit can be connected in parallel with each other, described a plurality of current sensing circuit can be arranged on the electric current output that produces from described a plurality of current occuring circuits the path of process, described the second current sensing circuit unit can be arranged on the path merging from the electric current of described a plurality of current occuring circuits outputs.
As mentioned above, according to the charging and discharging system of power brick of the present invention, can in the current balance type that stably keeps each electric current generation module, guarantee high current precision.
Other aspects of the present invention and/or advantage will partly be set forth in the following description, and a part will be clear from the description, or can know by practice of the present invention.
Accompanying drawing explanation
In the detailed description of carrying out below in conjunction with accompanying drawing, object of the present invention, feature and advantage will become clearer, in the accompanying drawings:
Fig. 1 is according to the block diagram of the charging and discharging system of the power brick of the embodiment of the present invention.
Embodiment
Hereinafter, describe with reference to the accompanying drawings the example of embodiments of the invention in detail, thereby those skilled in the art can easily understand and use the example of embodiments of the invention.
To describe in detail according to the charging and discharging system of the power brick of the embodiment of the present invention now.
Fig. 1 is according to the block diagram of the charging and discharging system 100 of the power brick of the embodiment of the present invention.
With reference to Fig. 1, according to the charging and discharging system 100 of the embodiment of the present invention, comprise current occuring circuit unit 110, power delivery unit 120, the first current sensing circuit unit 130, the second current sensing circuit unit 140, current control circuit unit 150 and data processing unit 160.
Current occuring circuit unit 110 can receive from the power of power subsystem 10 outputs, and generation makes the required electric current of battery 20 charging and dischargings.Current occuring circuit unit 110 can comprise a plurality of current occuring circuits that are connected in parallel with each other.For example, current occuring circuit unit 110 can comprise the first current occuring circuit 110a, the second current occuring circuit 110b and the 3rd current occuring circuit 110c.The first current occuring circuit 110a, the second current occuring circuit 110b and the 3rd current occuring circuit 110c can distinguish generation current.In the embodiment shown in the present invention, current occuring circuit unit 110 comprises three current occuring circuits, but the present invention is not three by the restricted number of current occuring circuit.
Power delivery unit 120 distributes from the power of power subsystem 10 outputs between battery 20 charge period, power output is transferred to the first current occuring circuit 110a, the second current occuring circuit 110b and the 3rd current occuring circuit 110c of current occuring circuit unit 110, and at the interdischarge interval of battery 20, the current delivery that is fed to the first current occuring circuit 110a, the second current occuring circuit 110b and the 3rd current occuring circuit 110c is arrived to power subsystem 10.In addition, power delivery unit 120 can receive the data that data processing unit 160 was processed, and described transfer of data is arrived to current control circuit unit 150.Here, the in the situation that of being arranged in current occuring circuit unit 110 in current control circuit unit 150, the data that data processing unit 160 was processed can be transferred to current control circuit unit 150 by current occuring circuit unit 110.Power delivery unit 120 can be arranged between power subsystem 10 and the front end of current occuring circuit unit 110.To the structure of current occuring circuit unit 110, power delivery unit 120 and current control circuit unit 150 be described in more detail subsequently.
The first current sensing circuit unit 130 can current sensor circuit for generating unit 110 output current.The first current sensing circuit unit 130 can comprise the first current sensing circuit 130a, the second current sensing circuit 130b and the 3rd current sensing circuit 130c.
The first current sensing circuit 130a can be constructed to the output current 131a of sensing the first current occuring circuit 110a, and can be arranged on electric current 131a output that the first current occuring circuit 110a produces on the path of process.In addition, the first current sensing circuit 130a can feed back to output current 131a the first current control circuit 150a of current control circuit unit 150.
The second current sensing circuit 130b can be constructed to the output current 131b of sensing the second current occuring circuit 110b, and can be arranged on electric current 131b output that the second current occuring circuit 110b produces on the path of process.In addition, the second current sensing circuit 130b can feed back to output current 131b the second current control circuit 150b of current control circuit unit 150.
The 3rd current sensing circuit 130c can be constructed to the output current 131c of sensing the 3rd current occuring circuit 110c, and can be arranged on electric current 131c output that the 3rd current occuring circuit 110c produces on the path of process.In addition, the 3rd current sensing circuit 130c can feed back to output current 131c the 3rd current control circuit 150c of current control circuit unit 150.
According to the first current sensing circuit unit 130 of the embodiment illustrating, high price, high-precision current sensor can be adopted, also relatively inexpensive current sensor can be used.
Although showing the first current sensing circuit unit 130, the embodiment illustrating comprises three current sensing circuits, but the present invention is not three by the restricted number of current sensing circuit, and the quantity of current sensing circuit and current control circuit can change according to the quantity of current occuring circuit.
The second current sensing circuit unit 140 can be constructed to the output current 141 (will be known as total output current) of current sensor circuit for generating unit 110, and can be arranged on the path that the output current 131c of the output current 131a of the first current occuring circuit 110a, the output current 131b of the second current occuring circuit 110b and the 3rd current occuring circuit 110c merges.In addition, the second current sensing circuit unit 140 can feed back to data processing unit 160 by total output current 141.
The first current occuring circuit 110a, the second current occuring circuit 110b and the 3rd current occuring circuit 110c can be controlled respectively in current control circuit unit 150, to keep the first current occuring circuit 110a, the second current occuring circuit 110b and electric current 131a, the 131b of the 3rd current occuring circuit 110c generation and the balance between 131c, that is, the value of electric current 131a, 131b and 131c is equated.Current control circuit unit 150 can comprise a plurality of current control circuits.For example, as shown in Figure 1, current control circuit unit 150 can comprise the first current control circuit 150a, the second current control circuit 150b and the 3rd current control circuit 150c.
The first current control circuit 150a, the second current control circuit 150b and the 3rd current control circuit 150c can be arranged on respectively the first current occuring circuit 110a, the second current occuring circuit 110b and the 3rd current occuring circuit 110c is inner or outside, to control each current occuring circuit 110a, 110b and 110c.In the illustrated embodiment, by hypothesis the first current control circuit 150a, the second current control circuit 150b with the 3rd current control circuit 150c is arranged on respectively the first current occuring circuit 110a, the second current occuring circuit 110b and the present invention is described in the 3rd current occuring circuit 110c inside.
Now will the operating principle of current control circuit unit 150 briefly be described.The final output current that system produces is set to desired value, but the electric current that each electric current generation module produces can change according to various external factor.Therefore, according to the current control circuit unit 150 of the embodiment of the present invention, utilize total output current 141 to regulate the size of the electric current from the first current occuring circuit 110a, the second current occuring circuit 110b and the 3rd current occuring circuit 110c generation.Based on this operating principle, now current control circuit unit 150 will be described in more detail.
The first current control circuit 150a is arranged on the inside of the first current occuring circuit 110a, and controls the first current occuring circuit 110a.Here, the data that the first current control circuit 150a receives about total output current 141 by data processing unit 160 and power delivery unit 120, and the output current 131a that the first current sensing circuit 130a senses can be fed back to the first current control circuit 150a.Therefore, the output current 131a that the first current control circuit 150a senses total output current 141 and the first current sensing circuit 130a compares, and whether definite output current 131a has suitable size.In addition, based on this, determine result, the first current control circuit 150a can control the first current occuring circuit 110a, to regulate the size of the electric current of the first current occuring circuit 110a generation.
The second current control circuit 150b can be arranged on the inside of the second current occuring circuit 110b, and controls the second current occuring circuit 110b.Here, the data that the second current control circuit 150b receives about total output current 141 by data processing unit 160 and power delivery unit 120, and the output current 131b that the second current sensing circuit 130b senses can be fed back to the second current control circuit 150b.Therefore, the output current 131b that the second current control circuit 150b senses total output current 141 and the second current sensing circuit 130b compares, and whether definite output current 131b has suitable size.In addition, based on this, determine result, the second current control circuit 150b can control the second current occuring circuit 110b, to regulate the size of the electric current of the second current occuring circuit 110b generation.
The 3rd current control circuit 150c can be arranged on the inside of the 3rd current occuring circuit 110c, and controls the 3rd current occuring circuit 110c.Here, the data that the 3rd current sensing circuit 130c receives about total output current 141 by data processing unit 160 and power delivery unit 120, and the output current 131c that the 3rd current sensing circuit 130c senses can be fed back to the 3rd current control circuit 150c.Therefore, the output current 131c that the 3rd current control circuit 150c senses total output current 141 and the 3rd current sensing circuit 130c compares, and whether definite output current 131c has suitable size.In addition, based on this, determine result, the 3rd current control circuit 150c can control the 3rd current occuring circuit 110c, to regulate the size of the electric current of the 3rd current occuring circuit 110c generation.
Therefore, the first current control circuit 150a, the second current control circuit 150b and the 3rd current control circuit 150c control the first current occuring circuit 110a, the second current occuring circuit 110b and the 3rd current occuring circuit 110c, to keep current balance type.
Data processing unit 160 can receive from total output stream 141 of the second current sensing circuit unit 140 feedbacks, and the total output current 141 receiving can be converted to numerical data.In addition, data processing unit 160 can by power delivery unit 120 by conversion after transfer of data to the first current control circuit 150a, the second current control circuit 150b and the 3rd current control circuit 150c.As mentioned above, in the situation that the first current control circuit 150a, the second current control circuit 150b and the 3rd current control circuit 150c are arranged on respectively the inside of the first current occuring circuit 110a, the second current occuring circuit 110b and the 3rd current occuring circuit 110c, the data after conversion can be output to the first current control circuit 150a, the second current control circuit 150b and the 3rd current control circuit 150c by the first current occuring circuit 110a, the second current occuring circuit 110b and the 3rd current occuring circuit 110c.Alternatively, in the situation that the first current control circuit 150a, the second current control circuit 150b and the 3rd current control circuit 150c are arranged on respectively the outside of the first current occuring circuit 110a, the second current occuring circuit 110b and the 3rd current occuring circuit 110c, the data after conversion can be directly transferred to the first current control circuit 150a, the second current control circuit 150b and the 3rd current control circuit 150c by power delivery unit 120.
The analogue value of the total output current 141 the second current sensing circuit unit 140 being sensed according to the data processing unit 160 of the embodiment of the present invention is converted to digital value, then by digital value feedback, thereby external action (for example, noise) is minimized.
Now, can not form data processing unit 160.In this case, total output current 141 that power delivery unit 120 can be constructed to that the second current sensing circuit unit 140 is sensed is directly transferred to the first current control circuit 150a, the second current control circuit 150b and the 3rd current control circuit 150c.In addition, the 3rd electric current 131c that the output current 131a that the first current control circuit 150a, the second current control circuit 150b and the 3rd current control circuit 150c sense total output current 141 and the first current sensing circuit 130a, the second electric current 131b that the second current sensing circuit 130b senses and the 3rd current sensing circuit 130c sense compares, and controls respectively the first current occuring circuit 110a, the second current occuring circuit 110b and the 3rd current occuring circuit 110c.
According to embodiments of the invention, can stably keep the current balance type between electric current generation module, and can guarantee the current precision of high electric current.
Although described the present invention in conjunction with being considered to practical exemplary embodiment at present, but should be appreciated that, the invention is not restricted to disclosed embodiment, but contrary, the invention is intended to cover various modifications and the equivalent arrangements in the spirit and scope that are included in claim.
Claims (10)
1. a charging and discharging system for power brick, described charging and discharging system comprises:
Current occuring circuit unit, comprises a plurality of current occuring circuits of received power generation current;
Power delivery unit, distributes the power of exporting from power subsystem between charge period, and the power delivery after distributing is arrived to described a plurality of current occuring circuits, and at interdischarge interval, the current delivery that is fed to described a plurality of current occuring circuits is arrived to power subsystem;
The first current sensing circuit unit, sensing is from the electric current of described a plurality of current occuring circuit outputs;
The second current sensing circuit unit, sensing is from the total current of described current occuring circuit unit output;
Current control circuit unit, by the first current sensing circuit unit senses to electric current and the second current sensing circuit unit senses to total current compare, and control each current occuring circuit, thereby keep the current balance type between each current occuring circuit.
2. charging and discharging system according to claim 1, described charging and discharging system also comprises data processing unit, described data processing unit by the second current sensing circuit unit senses to the analogue data of total current be converted to numerical data.
3. charging and discharging system according to claim 2, wherein, described current control circuit unit comprises a plurality of current control circuits that are arranged on respectively in described a plurality of current occuring circuit, and described power delivery unit arrives each current control circuit by described digital data transfer.
4. charging and discharging system according to claim 3, wherein, the first current sensing circuit unit comprises a plurality of current sensing circuits, the current feedback that each current sensing circuit senses each current sensing circuit is to each current control circuit.
5. charging and discharging system according to claim 4, wherein, the electric current that described a plurality of current control circuit senses each current sensing circuit of described numerical data and the first current sensing circuit unit compares, and control each current occuring circuit, thereby the value of the electric current of current occuring circuit generation is equal to each other.
6. charging and discharging system according to claim 4, wherein, described a plurality of current occuring circuit is connected in parallel with each other, described a plurality of current sensing circuit be separately positioned on electric current output that described a plurality of current occuring circuit produces on the path of process, and the second current sensing circuit unit is arranged on the path merging from the electric current of described a plurality of current occuring circuits outputs.
7. charging and discharging system according to claim 1, wherein, described current control circuit unit comprises a plurality of current control circuits that are arranged on inside, described current occuring circuit unit, and described power delivery unit by described the second current sensing circuit unit senses to total current be transferred to described a plurality of current control circuit.
8. charging and discharging system according to claim 7, wherein, the first current sensing circuit unit comprises a plurality of current sensing circuits, and the current feedback that described a plurality of current sensing circuit senses each current sensing circuit is to described a plurality of current control circuits.
9. charging and discharging system according to claim 8, described a plurality of current control circuit by described the second current sensing circuit unit senses to total current and the electric current that senses of described a plurality of current sensing circuits of described the first current sensing circuit unit compare, and control each current occuring circuit, thereby the value of the electric current of described a plurality of current occuring circuit generations is equal to each other.
10. charging and discharging system according to claim 8, wherein, described a plurality of current occuring circuit is connected in parallel with each other, described a plurality of current sensing circuit be arranged on electric current output that described a plurality of current occuring circuit produces on the path of process, described the second current sensing circuit unit is arranged on the path merging from the electric current of described a plurality of current occuring circuits outputs.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0014661 | 2011-02-18 | ||
| KR1020110014661A KR101201036B1 (en) | 2011-02-18 | 2011-02-18 | System for charge and discharge of battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102646998A CN102646998A (en) | 2012-08-22 |
| CN102646998B true CN102646998B (en) | 2014-09-03 |
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ID=46659649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110119266.4A Expired - Fee Related CN102646998B (en) | 2011-02-18 | 2011-05-04 | System for charge and discharge of battery pack |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101201036B1 (en) |
| CN (1) | CN102646998B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730924A (en) * | 2013-12-16 | 2014-04-16 | 深圳市金立通信设备有限公司 | Charging method, assembly and terminal |
| CN104505890B (en) * | 2014-12-24 | 2017-02-01 | 广东欧珀移动通信有限公司 | Mobile terminal |
| KR102106444B1 (en) * | 2016-07-21 | 2020-05-04 | 삼성에스디아이 주식회사 | Battery module |
| CN114696403B (en) * | 2020-12-31 | 2024-02-02 | Oppo广东移动通信有限公司 | Power adapter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917036A (en) * | 2010-07-28 | 2010-12-15 | 镇江恒驰科技有限公司 | Dynamically balanced charging and discharging method for battery management system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100490551B1 (en) * | 2003-03-06 | 2005-05-17 | 삼성에스디아이 주식회사 | Power supply for charging and discharging apparatus of secondary battery |
-
2011
- 2011-02-18 KR KR1020110014661A patent/KR101201036B1/en active IP Right Grant
- 2011-05-04 CN CN201110119266.4A patent/CN102646998B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917036A (en) * | 2010-07-28 | 2010-12-15 | 镇江恒驰科技有限公司 | Dynamically balanced charging and discharging method for battery management system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120095161A (en) | 2012-08-28 |
| CN102646998A (en) | 2012-08-22 |
| KR101201036B1 (en) | 2012-11-14 |
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Granted publication date: 20140903 Termination date: 20210504 |