CN107919504A - A kind of battery equalizing circuit and control method - Google Patents
A kind of battery equalizing circuit and control method Download PDFInfo
- Publication number
- CN107919504A CN107919504A CN201711361676.3A CN201711361676A CN107919504A CN 107919504 A CN107919504 A CN 107919504A CN 201711361676 A CN201711361676 A CN 201711361676A CN 107919504 A CN107919504 A CN 107919504A
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- cell voltage
- electricity
- economize
- battery
- voltage
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000005611 electricity Effects 0.000 claims abstract description 90
- 238000007599 discharging Methods 0.000 claims abstract description 18
- 238000005070 sampling Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- 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
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of battery equalizing circuit and control method, the battery equalizing circuit includes control circuit and battery discharging circuit, the control circuit receives the cell voltage that often economizes on electricity, and the cell voltage of minimum is therefrom selected, by the minimum cell voltage with the difference of every economize on electricity cell voltage respectively compared with threshold voltage；When any economize on electricity cell voltage reaches first threshold voltage, and certain economize on electricity cell voltage and the difference of the minimum cell voltage reach second threshold voltage, then the batteries are discharged by the battery discharging circuit；Alternatively, when certain economize on electricity cell voltage reaches three threshold voltages, then the batteries are discharged by the battery discharging circuit.The present invention each economize on electricity cell voltage easy to implement is consistent, and equalization efficiency is high.
Description
Technical field
The present invention relates to field of power electronics, more particularly to a kind of battery equalizing circuit and control method.
Background technology
One battery pack includes multiple batteries, the problem of due to actual production technique, has difference between each single battery
Different, battery set charge/discharge process will also result in the difference of voltage and capacity in every batteries.The battery equalizing circuit of the prior art,
By taking 3 batteries as an example, per batteries, a series circuit in parallel, each series circuit include a current source and a switch
Series connection.Voltage in 3 batteries is sampled, exports after comparison circuit and is each switched in 3 each series circuits of switching signals control
Break-make.
The selection circuit schematic diagram of prior art battery equalizing circuit is as shown in Figure 1, the selection circuit includes three ratios
Compared with device U101, U102 and U103.By sample obtain 3 economize on electricity cell voltages respectively at setting balanced turn-on threshold voltage Vref phases
Compare, output control signal Q1, Q2 and Q3 go control with being switched on-off in the series circuit of cell parallel respectively.When certain economize on electricity
When voltage is more than Vref on pond, corresponding comparator output high level controls the switch closure on the battery parallel circuit, at this time
The battery is discharged by the current source on corresponding parallel circuit.When the cell voltage drops to balanced turn-on threshold voltage
During Vref, switching off on battery parallel circuit described in corresponding comparator output low level control.Balanced turn-on threshold voltage
Selection need battery cell full charge pressure higher than charger, and be less than over-charging of battery piezoelectric voltage, therefore the prior art is equal
The function that weighs unlatching is later, and portfolio effect is bad.
The content of the invention
The object of the present invention is to provide a kind of battery equalizing circuit and control method, for solving core existing in the prior art
The problem of piece designs and packaging cost is larger.
To achieve the above object, the present invention provides a kind of battery equalizing circuit, including：
Control circuit, control circuit, the control circuit receive the cell voltage that often economizes on electricity, and therefrom select the battery electricity of minimum
Pressure, will often economize on electricity cell voltage respectively compared with first threshold voltage, by every economize on electricity cell voltage and the difference of the minimum cell voltage
Value will often economize on electricity cell voltage respectively compared with the 3rd threshold voltage respectively compared with second threshold voltage；
Battery discharging circuit, when any economize on electricity cell voltage reaches first threshold voltage, and certain economize on electricity cell voltage with it is described most
When the difference of baby battery voltage reaches second threshold voltage, then the batteries are discharged by the battery discharging circuit；Alternatively, work as
When certain economize on electricity cell voltage reaches three threshold voltages, then the batteries are discharged by the battery discharging circuit.
Optionally, the control circuit includes selection circuit, and the selection circuit receives the cell voltage that often economizes on electricity, and therefrom selects
Go out the cell voltage of minimum.
Optionally, the control circuit further includes difference circuit, and the difference circuit receives the cell voltage that often economizes on electricity, will be every
Economize on electricity cell voltage subtracts each other with minimum cell voltage respectively, obtains the difference of every economize on electricity cell voltage and minimum cell voltage.
Optionally, the control circuit further includes comparison circuit, the comparison circuit receive often economize on electricity cell voltage and
The difference for cell voltage and the minimum cell voltage of often economizing on electricity, will often economize on electricity cell voltage respectively compared with first threshold voltage, will often save
Cell voltage with the difference of minimum cell voltage respectively compared with second threshold voltage, will often economize on electricity cell voltage respectively with the 3rd threshold
Threshold voltage is compared, when any economize on electricity cell voltage reaches first threshold voltage, and the difference of certain economize on electricity cell voltage and minimum cell voltage
When value reaches first threshold voltage, then the economize on electricity tank discharge；Alternatively, when certain economize on electricity cell voltage is more than three threshold voltages, then
The economize on electricity tank discharge.
Optionally, the battery discharging circuit includes multiple battery discharge modules, and each battery corresponds to a battery discharge
Module.
Optionally, the battery discharge module includes switch and resistance, and the resistance is used for battery discharge；When any section
Cell voltage reaches first threshold voltage, and the difference of certain economize on electricity cell voltage and minimum cell voltage reaches second threshold voltage
When, then the corresponding battery discharge mould switch conduction in the block of the economize on electricity cell voltage, the economize on electricity tank discharge；Alternatively, work as certain batteries
When voltage is more than three threshold voltages, then the corresponding battery discharge mould switch conduction in the block of the economize on electricity cell voltage, the batteries
Electric discharge.
Optionally, the battery discharge module includes current source, and the current source is used for battery discharge；When any economize on electricity
Cell voltage reaches first threshold voltage, and certain economize on electricity cell voltage and the difference of the minimum cell voltage reach second threshold voltage
When, then the corresponding battery discharge mould current source conduction in the block of the economize on electricity cell voltage, the economize on electricity tank discharge；Alternatively, when certain economize on electricity
When cell voltage is more than three threshold voltages, then the corresponding battery discharge mould current source conduction in the block of the economize on electricity cell voltage, the section
Battery discharge..
The present invention also provides a kind of battery balanced control method：
Sampling therefrom selects minimum cell voltage per batteries both end voltage；To often economize on electricity cell voltage respectively with it is described
Minimum cell voltage is subtracted each other, when any economize on electricity cell voltage reaches first threshold voltage, and certain economize on electricity cell voltage and the minimum electricity
When the difference of cell voltage reaches second threshold voltage, then the batteries are discharged by the battery discharging circuit；Alternatively, when certain section
When cell voltage reaches three threshold voltages, then the batteries are discharged by the battery discharging circuit.
Compared with prior art：Sampling therefrom selects minimum cell voltage per batteries both end voltage；Will be per batteries
Voltage subtracts each other with the minimum cell voltage respectively, when any economize on electricity cell voltage reaches first threshold voltage, and certain batteries electricity
When the difference of pressure and the minimum cell voltage reaches second threshold voltage, then the batteries are put by the battery discharging circuit
Electricity；Alternatively, when certain economize on electricity cell voltage reaches three threshold voltages, then the batteries are discharged by the battery discharging circuit.
The present invention is battery balanced by the difference unlatching of comparative cell voltage, and cell voltage easy to implement is consistent, and equalization efficiency is high.
Brief description of the drawings
Fig. 1 is the selection circuit schematic diagram in prior art battery equalizing circuit；
Fig. 2 is the circuit diagram of battery equalizing circuit of the present invention；
Fig. 3 is selection circuit schematic diagram；
Fig. 4 is difference circuit schematic diagram；
Fig. 5 is comparison circuit schematic diagram；
Embodiment
The preferred embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention is not restricted to these
Embodiment.The present invention covers any replacement made in the spirit and scope of the present invention, modification, equivalent method and scheme.
Thoroughly understand to make the public have the present invention, be described in detail in present invention below preferred embodiment specific
Details, and description without these details can also understand the present invention completely for a person skilled in the art.
More specifically description is of the invention by way of example referring to the drawings in the following passage.It should be noted that attached drawing is adopted
Non-accurate ratio is used with more simplified form and, only to convenience, lucidly aid in illustrating the embodiment of the present invention
Purpose.
As shown in Fig. 2, the circuit structure of battery equalizing circuit of the present invention is illustrated, and by taking 3 batteries as an example, including battery
Discharge circuit and control circuit, battery discharging circuit include 3 discharge modules, each battery discharge module include a batteries,
One resistance and a switching tube.A series circuit in parallel on per batteries, the series circuit is by a resistance and one
Switching tube forms, and each resistance is used for battery discharge.Sampling is per batteries both end voltage, and voltage is respectively in every batteries
V1, V2 and V3 (V1, V2, V3 characterize each batteries at the same time), output 3 switch controlling signals Q1, Q2, Q3 are gone after control circuit
The break-make that k1, k2, k3 are each switched in the series circuit is controlled, when certain batteries needs electric discharge, respective switch conducting, phase
Battery is answered to discharge by corresponding resistor.The resistance and switching tube can be replaced with a current source, and the current source is connected in parallel on
Battery both ends, when certain batteries needs electric discharge, respective current sources conducting, respective battery is discharged by respective current sources.It is described
Battery voltage sampling samples for periodic samples or continuity.Control circuit of the present invention includes selection circuit, difference circuit
And comparison circuit.
As shown in figure 3, illustrating the selection circuit in control circuit of the present invention, the selection circuit receives cell voltage letter
Number V1, V2, V3, and the minimum value in V1, V2, V3 is therefrom chosen, it is denoted as Vmin.
As shown in figure 4, illustrating the difference circuit in control circuit of the present invention, the difference circuit receives cell voltage letter
Number V1, V2, V3, and it is subtracted each other with minimum cell voltage signal Vmin respectively, obtain V1-Vmin, V2-Vmin, V3-Vmin
Value.
As shown in figure 5, the comparison circuit in control circuit of the present invention is illustrated, the comparison circuit reception V1-Vmin,
The value and cell voltage V1, V2, V3 and threshold voltage Vrefl, Vref2, Vref3 of V2-Vmin, V3-Vmin, the comparison circuit
By V1, V2, V3 respectively compared with first threshold voltage Vref1, by the value of V1-Vmin, V2-Vmin, V3-Vmin respectively with second
Threshold voltage Vref2 is compared, by V1, V2, V3 respectively compared with the 3rd threshold voltage Vref3, output switch control signal Q1,
Q2、Q3.When any one economize on electricity cell voltage reaches first threshold voltage Vrefl, and the difference of certain batteries and minimum cell voltage
When value reaches second threshold voltage Vref2, for example, when the value of V2-Vmin reaches Vref2, battery V2 electric discharges.In certain economize on electricity
Cell voltage reaches Vref2 with minimum cell voltage difference, but in the case of certain economize on electricity cell voltage very little itself, sets the first threshold
Threshold voltage Vrefl is certain economize on electricity tank discharge in order to avoid voltage very little.First threshold voltage is not up to for V2-Vmin values
Vrefl, but when V2 is very big, when V2 reaches the 3rd threshold voltage Vref3, battery V2 electric discharges.The 3rd threshold voltage Vref3
More than first threshold voltage Vrefl.
Although embodiment is separately illustrated and is illustrated above, it is related to the common technology in part, in ordinary skill
Personnel apparently, can be replaced and integrate between the embodiments, be related to one of embodiment and the content recorded is not known, then
Refer to another embodiment on the books.
Embodiments described above, does not form the restriction to the technical solution protection domain.It is any in above-mentioned implementation
Modifications, equivalent substitutions and improvements made within the spirit and principle of mode etc., should be included in the protection model of the technical solution
Within enclosing.
Claims (8)
1. a kind of battery equalizing circuit, including：
Control circuit, the control circuit receive the cell voltage that often economizes on electricity, and therefrom select the cell voltage of minimum, will be per batteries
Voltage respectively compared with first threshold voltage, by the difference of every economize on electricity cell voltage and the minimum cell voltage respectively with the second threshold
Threshold voltage is compared, and will often economize on electricity cell voltage respectively compared with the 3rd threshold voltage；
Battery discharging circuit, when any economize on electricity cell voltage reaches first threshold voltage, and certain economize on electricity cell voltage and the minimum electricity
When the difference of cell voltage reaches second threshold voltage, then the batteries are discharged by the battery discharging circuit；Alternatively, when certain section
When cell voltage reaches three threshold voltages, then the batteries are discharged by the battery discharging circuit.
2. battery equalizing circuit according to claim 1, it is characterised in that：The control circuit includes selection circuit, institute
State selection circuit and receive the cell voltage that often economizes on electricity, and therefrom select the cell voltage of minimum.
3. battery equalizing circuit according to claim 2, it is characterised in that：The control circuit further includes difference circuit,
The difference circuit receives the cell voltage that often economizes on electricity, and the cell voltage that will often economize on electricity subtracts each other with minimum cell voltage respectively, obtains every economize on electricity
The difference of cell voltage and minimum cell voltage.
4. battery equalizing circuit according to claim 3, it is characterised in that：The control circuit further includes comparison circuit,
The comparison circuit receives the difference of often economize on electricity cell voltage and often economize on electricity cell voltage and minimum cell voltage, will be electric per batteries
Pressure respectively compared with first threshold voltage, by the difference of every economize on electricity cell voltage and minimum cell voltage respectively with second threshold voltage
Compare, will often economize on electricity cell voltage respectively compared with the 3rd threshold voltage；When it is any economize on electricity cell voltage reach first threshold voltage, and
When certain economize on electricity cell voltage and the difference of minimum cell voltage reach second threshold voltage, then the economize on electricity tank discharge；Alternatively, when certain section
When cell voltage is more than three threshold voltages, then the economize on electricity tank discharge.
5. battery equalizing circuit according to claim 1, it is characterised in that：The battery discharging circuit includes multiple batteries
Discharge module, each battery correspond to a battery discharge module.
6. battery equalizing circuit according to claim 5, it is characterised in that：The battery discharge module includes switch and electricity
Resistance, the resistance are used for battery discharge；When any economize on electricity cell voltage reaches first threshold voltage, and certain economize on electricity cell voltage with most
When the difference of baby battery voltage reaches second threshold voltage, then the corresponding battery discharge mould of economize on electricity cell voltage switch in the block is led
It is logical, the economize on electricity tank discharge；Alternatively, when certain economize on electricity cell voltage is more than three threshold voltages, then the corresponding electricity of economize on electricity cell voltage
Tank discharge mould switch conduction in the block, the economize on electricity tank discharge.
7. battery equalizing circuit according to claim 5, it is characterised in that：The battery discharge module includes current source,
The current source is used for battery discharge；When any economize on electricity cell voltage reaches first threshold voltage, and certain economize on electricity cell voltage and institute
When stating the difference of minimum cell voltage and reaching second threshold voltage, then the corresponding battery discharge mould electricity in the block of the economize on electricity cell voltage
Stream source turns on, the economize on electricity tank discharge；Alternatively, when certain economize on electricity cell voltage is more than three threshold voltages, then the economize on electricity cell voltage pair
The battery discharge mould current source conduction in the block answered, the economize on electricity tank discharge.
A kind of 8. battery balanced control method：
Sampling therefrom selects minimum cell voltage per batteries both end voltage；To often economize on electricity cell voltage respectively with the minimum
Cell voltage subtracts each other, when any economize on electricity cell voltage reaches first threshold voltage, and certain economize on electricity cell voltage and the minimum battery electricity
When the difference of pressure reaches second threshold voltage, then the batteries are discharged by the battery discharging circuit；Alternatively, work as certain batteries
When voltage reaches three threshold voltages, then the batteries are discharged by the battery discharging circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711361676.3A CN107919504A (en) | 2017-12-15 | 2017-12-15 | A kind of battery equalizing circuit and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711361676.3A CN107919504A (en) | 2017-12-15 | 2017-12-15 | A kind of battery equalizing circuit and control method |
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| Publication Number | Publication Date |
|---|---|
| CN107919504A true CN107919504A (en) | 2018-04-17 |
Family
ID=61893376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711361676.3A Pending CN107919504A (en) | 2017-12-15 | 2017-12-15 | A kind of battery equalizing circuit and control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450027A (en) * | 2018-11-23 | 2019-03-08 | 安徽江淮汽车集团股份有限公司 | Lithium ion battery equalization methods |
| CN109842179A (en) * | 2019-02-27 | 2019-06-04 | 杰华特微电子（杭州）有限公司 | Battery pack detection circuit and detection method |
| CN110190651A (en) * | 2019-06-19 | 2019-08-30 | 南京中感微电子有限公司 | A kind of multi-threshold electric quantity balancing method and system of battery pack |
| CN113364091A (en) * | 2021-06-07 | 2021-09-07 | 上海空间电源研究所 | Space lithium battery autonomous balance control system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468673A (en) * | 2011-05-04 | 2012-05-23 | 凹凸电子（武汉）有限公司 | Switching circuit, system and method for balancing battery cells |
| CN103378618A (en) * | 2012-04-19 | 2013-10-30 | 上海方忆新能源科技有限公司 | All-day real-time initiative energy equalizing method |
| CN105226733A (en) * | 2014-05-27 | 2016-01-06 | 重庆邮电大学 | Active-passive hybrid equalization architecture and method for battery pack |
| CN207732042U (en) * | 2017-12-15 | 2018-08-14 | 杰华特微电子（杭州）有限公司 | A kind of battery equalizing circuit |
-
2017
- 2017-12-15 CN CN201711361676.3A patent/CN107919504A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468673A (en) * | 2011-05-04 | 2012-05-23 | 凹凸电子（武汉）有限公司 | Switching circuit, system and method for balancing battery cells |
| CN103378618A (en) * | 2012-04-19 | 2013-10-30 | 上海方忆新能源科技有限公司 | All-day real-time initiative energy equalizing method |
| CN105226733A (en) * | 2014-05-27 | 2016-01-06 | 重庆邮电大学 | Active-passive hybrid equalization architecture and method for battery pack |
| CN207732042U (en) * | 2017-12-15 | 2018-08-14 | 杰华特微电子（杭州）有限公司 | A kind of battery equalizing circuit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450027A (en) * | 2018-11-23 | 2019-03-08 | 安徽江淮汽车集团股份有限公司 | Lithium ion battery equalization methods |
| CN109842179A (en) * | 2019-02-27 | 2019-06-04 | 杰华特微电子（杭州）有限公司 | Battery pack detection circuit and detection method |
| CN110190651A (en) * | 2019-06-19 | 2019-08-30 | 南京中感微电子有限公司 | A kind of multi-threshold electric quantity balancing method and system of battery pack |
| CN113364091A (en) * | 2021-06-07 | 2021-09-07 | 上海空间电源研究所 | Space lithium battery autonomous balance control system |
| CN113364091B (en) * | 2021-06-07 | 2023-02-21 | 上海空间电源研究所 | Space lithium battery autonomous balance control system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Room 901-23, 9 / F, west 4 building, Xigang development center, 298 Zhenhua Road, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province, 310030 Applicant after: Jiehuate Microelectronics Co.,Ltd. Address before: Room 424, building 1, 1500 Wenyi West Road, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province Applicant before: JOULWATT TECHNOLOGY Inc.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180417 |