CN110380490A - A kind of the active equalization structure and method of series-connected cell - Google Patents
A kind of the active equalization structure and method of series-connected cell Download PDFInfo
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- CN110380490A CN110380490A CN201910733185.XA CN201910733185A CN110380490A CN 110380490 A CN110380490 A CN 110380490A CN 201910733185 A CN201910733185 A CN 201910733185A CN 110380490 A CN110380490 A CN 110380490A
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- voltage
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000004065 semiconductor Substances 0.000 claims abstract description 94
- 238000004146 energy storage Methods 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims description 13
- 238000005070 sampling Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
-
- H02J7/0026—
-
- 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
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
Abstract
The present invention discloses the active equalization structure and method of a kind of series-connected cell, structure has+1 battery, N-1 energy storage inductor and 2 (N-1) metal-oxide-semiconductor of N number of series connection, it is in parallel after wherein 2 (N-1) a metal-oxide-semiconductors are connected in series respectively in pairs, then connect with 1 metal-oxide-semiconductor and N number of battery and to form closed circuit；The instruction output end connection corresponding with single-chip microcontroller of the control terminal of each metal-oxide-semiconductor；N-1 battery node is drawn between the adjacent cell of N number of series connection, draws N-1 metal-oxide-semiconductor node in each metal-oxide-semiconductor group between adjacent mos pipe, and N-1 metal-oxide-semiconductor node is corresponded with N-1 battery node；N-1 energy storage inductor is connected between corresponding battery node and metal-oxide-semiconductor node.The present invention controls metal-oxide-semiconductor by single-chip microcontroller and opening and turning off, and carries out charge and discharge to battery, achievees the purpose that active equalization between battery, avoid battery overcharge and over-discharge.
Description
Technical field
The present invention relates to a kind of batteries monomer cell balancing, the active equalization structure of specially a kind of series-connected cell
And method.
Background technique
Single battery in battery pack, due to manufacturing and using the difference of condition, having differences property of characteristic.And these are poor
It is different, if not obtaining due control during charge and discharge, it will further increase, accumulate over a long period, may significantly increase
Difference between big single battery, causes percentage of batteries to overcharge, over-discharge electrical phenomena, cause battery capacity and service life sharply under
Drop accelerates the battery capacity rate of decay, and the internal resistance of cell becomes larger, so that battery durable ability reduces even damage battery pack.Therefore,
In order to improve the service life of entire battery pack, the ability of equalization for how improving battery becomes an important project.Existing battery
Equalizing circuit has very much, has nothing in common with each other in the ability of equalization and performance, there is technical issues that it is some fail, lead to equilibrium
Ability can not reach requirement.
Capacitor active equalization technical speed is slow at present, and energy loss is more.Using transformer method active equalization technology circuit
Design difficulty is big, and structure is complicated, and magnetic core and winding are depending on battery voltage and monomer voltage, poor universality.
Summary of the invention
For the deficiencies of structure is complicated, poor universality using transformer method active equalization technology circuit in the prior art, originally
Problems to be solved by the invention, which is to provide, a kind of can effectively extend that battery, structure be simple, series electrical of enhancing versatility
The active equalization structure and method in pond.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of active equalization structure of series-connected cell of the present invention, battery, N-1 energy storage inductor with N number of series connection
And 2 (N-1)+1 metal-oxide-semiconductor, wherein 2 (N-1) a metal-oxide-semiconductors are in parallel after being connected in series respectively in pairs, then with 1 MOS
Pipe and N number of battery connect to form closed circuit；The instruction output end connection corresponding with single-chip microcontroller of the control terminal of each metal-oxide-semiconductor；N number of string
Join and draw N-1 battery node between the adjacent cell of connection, draws N-1 metal-oxide-semiconductor in each metal-oxide-semiconductor group between adjacent mos pipe
Node, N-1 metal-oxide-semiconductor node are corresponded with N-1 battery node；N-1 energy storage inductor is connected to corresponding battery
Between node and metal-oxide-semiconductor node.
Each battery both ends are equipped with sampling resistor, voltage signal signal input part connection corresponding with single-chip microcontroller.
The integer that N is 2~24.
A kind of equalization methods of the active equalization structure of series-connected cell of the present invention, comprising the following steps:
1) single-chip microcontroller acquires the voltage of each battery in battery pack by sampling resistor；
2) single-chip microcontroller is analyzed and processed the voltage of battery each in battery pack；
3) for cell voltage be more than battery balanced threshold voltage, by single-chip microcontroller control be connected in series metal-oxide-semiconductor and with
One metal-oxide-semiconductor of the corresponding metal-oxide-semiconductor group of the battery is connected, and the battery and corresponding metal-oxide-semiconductor and inductance is made to form discharge loop；
4) for other batteries, charge circuit is formed by corresponding metal-oxide-semiconductor, battery and inductance, it is equal by being more than battery
The battery of weighing apparatus threshold voltage is charged by its discharge loop to other batteries.
When the cell voltage for occurring two or more in circuit is higher than equalizing voltage threshold value, by voltage value from height
To low sequence loop equilibrium cell voltage, by step 3)~4) control mode discharge, until voltage value is below
Weigh voltage threshold.
The invention has the following beneficial effects and advantage:
1. the present invention automatically detects cell voltage by single-chip microcontroller, analyzes, compares, to control opening for metal-oxide-semiconductor
Logical and shutdown carries out charge and discharge to battery, achievees the purpose that active equalization between battery, avoid battery overcharge and over-discharge.
2. implementation of the invention can effectively delay internal resistance of cell change trend, slow down the battery capacity rate of decay, extend electricity
Pond service life.
3. the present invention has control simple, balancing speed is fast, and euqalizing current is big, and structure is simple, and it is excellent that voltage output is stablized etc.
Point.
Detailed description of the invention
Fig. 1 is theory of constitution figure of the invention；
Fig. 2 is the electric discharge electricity current flow diagrams of battery BT1；
Fig. 3 is the charging electricity current flow diagrams of battery BT2-BT6；
Fig. 4 is the discharge current flow graph of battery BT2；
Fig. 5 is 1 current flow diagrams of charge circuit of battery；
Fig. 6 is 2 current flow diagrams of charge circuit of battery；
Fig. 7 is the discharge current flow graph of battery BT3；
Fig. 8 is 1 current flow diagrams of charge circuit of battery；
Fig. 9 is 2 current flow diagrams of charge circuit of battery；
Figure 10 is the discharge current flow graph of battery BT4；
Figure 11 is 1 current flow diagrams of charge circuit of battery；
Figure 12 is 2 current flow diagrams of charge circuit of battery；
Figure 13 is the discharge current flow graph of battery BT5；
Figure 14 is 1 current flow diagrams of charge circuit of battery；
Figure 15 is 2 current flow diagrams of charge circuit of battery；
Figure 16 is the discharge current flow graph of battery BT6；
Figure 17 is the charge circuit current flow diagrams of battery BT1-BT5.
In Fig. 1, BT1~BT6 be the first~six battery, Q1-Q11 be first~11 metal-oxide-semiconductors, L1-L5 be first~
Five energy storage inductors, R1~R5 are the first~five sampling resistor.
Specific embodiment
The present invention is further elaborated with reference to the accompanying drawings of the specification.
A kind of active equalization structure of series-connected cell of the present invention, battery, N-1 energy storage inductor with N number of series connection
And 2 (N-1)+1 metal-oxide-semiconductor, wherein 2 (N-1) a metal-oxide-semiconductors are in parallel after being connected in series respectively in pairs, then with 1 MOS
Pipe and N number of battery connect to form closed circuit；The instruction output end connection corresponding with single-chip microcontroller of the control terminal of each metal-oxide-semiconductor；N number of string
Join and draw N-1 battery node between the adjacent cell of connection, draws N-1 metal-oxide-semiconductor in each metal-oxide-semiconductor group between adjacent mos pipe
Node, N-1 metal-oxide-semiconductor node are corresponded with N-1 battery node；N-1 energy storage inductor is connected to corresponding battery
Between node and metal-oxide-semiconductor node.
Each battery both ends are equipped with sampling resistor, voltage signal signal input part connection corresponding with single-chip microcontroller.N be 2~
24 integer.
As shown in Figure 1, in the present embodiment, N 6.The active equalization structure of series-connected cell of the present invention includes 6 series connections
Battery, 5 energy storage inductors and 11 metal-oxide-semiconductors, all metal-oxide-semiconductors are that (the present embodiment is all made of N-channel MOS pipe
VBL1105), control terminal, that is, grid (G pin) of each metal-oxide-semiconductor is connect with the corresponding output end of single-chip microcontroller, receives the control of single-chip microcontroller
The on-off of metal-oxide-semiconductor is realized in system instruction.
In 11 metal-oxide-semiconductors, second~11 metal-oxide-semiconductor Q2~Q11 are serially connected in five groups respectively in pairs, every group of both ends
It is connected in parallel again, is then connected in series to form closed circuit with the first metal-oxide-semiconductor Q1 and the first~six battery ET1~ET6.
A kind of equalization methods of the active equalization structure of series-connected cell of the present invention the following steps are included:
1) single-chip microcontroller acquires the voltage of each battery in battery pack by sampling resistor；
2) single-chip microcontroller is analyzed and processed the voltage of battery each in battery pack；
3) for cell voltage be more than battery balanced threshold voltage, by single-chip microcontroller control be connected in series metal-oxide-semiconductor and with
One metal-oxide-semiconductor of the corresponding metal-oxide-semiconductor group of the battery is connected, and the battery and corresponding metal-oxide-semiconductor and inductance is made to form discharge loop；
4) for other batteries, charge circuit is formed by corresponding metal-oxide-semiconductor, battery and inductance, it is equal by being more than battery
The battery of weighing apparatus threshold voltage is charged by its discharge loop to other batteries.
A. when the first battery BT1 voltage is higher than equalizing voltage threshold value
(1) the first battery BT1 electric discharge is controlled by single-chip microcontroller, first and second metal-oxide-semiconductor Q1, Q2 is connected at this time, the first battery
BT1 electric discharge, the part energy in the first BT1 battery is discharged into the first inductance L1, at this time the first inductance L1 energy storage.Energy
First and second metal-oxide-semiconductor Q1, Q2 is turned off after the completion of release, as shown in Fig. 2,
(2) charge circuit is controlled by single-chip microcontroller: while first and second metal-oxide-semiconductor Q, Q2 is turned off, the 7th metal-oxide-semiconductor Q7 conducting,
First inductance L1 releases energy, and charges to the second~six battery BT2-BT6, as shown in Figure 3.The 7th is turned off after charging complete
Metal-oxide-semiconductor Q7, realize high-voltage battery release energy to low-voltage battery, the purpose of active equalization.
B. when the second battery BT2 voltage is higher than equalizing voltage threshold value
(1) electric discharge of the second battery BT2 is controlled by single-chip microcontroller, second and third metal-oxide-semiconductor Q2, Q3 are connected at this time, the second battery
BT2 electric discharge, the part energy in the second battery BT2 is discharged into respectively in first and second inductance L1, L2, at this time the first and second electricity
Feel L1, L2 energy storage.Second and third metal-oxide-semiconductor Q2, Q3 are turned off after the completion of energy release, as shown in figure 4,
(2) control charge circuit 1 by single-chip microcontroller: second and third metal-oxide-semiconductor Q2, Q3 are turned off, first and second, eight metal-oxide-semiconductor Q1,
Q2, Q8 conducting, the first inductance L1 and second, one metal-oxide-semiconductor Q2, Q1 and the first battery BT1 constitute charge circuit 1, such as Fig. 5 institute
Show, the first inductance L1 releases energy at this time, charges to the first battery BT1.Turned off when charging complete the first and second metal-oxide-semiconductor Q1,
Q2；
(3) by single-chip microcontroller control 2: the second inductance L2 of charge circuit and third~six battery BT3, BT4, BT5, BT6 with
And the 8th metal-oxide-semiconductor Q8 constitute charge circuit 2, the second inductance L2 releases energy at this time, fills to third~six battery BT3-BT6
Electricity, as shown in Figure 6.The 8th metal-oxide-semiconductor Q8 is closed when charging complete.
Charge circuit 1 carries out simultaneously with charge circuit 2, realizes that high-voltage battery releases energy, actively to low-voltage battery
Balanced purpose.
C. when third battery BT3 voltage is higher than equalizing voltage threshold value:
(1) the first battery BT3 electric discharge, third and fourth metal-oxide-semiconductor Q3, Q4 conducting are controlled by single-chip microcontroller, third battery BT3 is put
Part energy in 3rd BT3 battery is discharged into second and third inductance L2, L3 by electricity respectively, at this time second and third inductance L2,
L3 energy storage, as shown in Figure 7.Third and fourth metal-oxide-semiconductor Q3, Q4 are turned off after the completion of energy release.
(2) charge circuit 1 is controlled by single-chip microcontroller: while third and fourth metal-oxide-semiconductor Q3, Q4 are turned off, first and third, nine MOS
Pipe Q1, Q3, Q9 conducting, the second inductance L2 and third, a metal-oxide-semiconductor Q3, Q1, first and second battery BT1, BT2 constitute charge circuit 1,
As shown in Figure 8.The second inductance L2 releases energy at this time, charges to first and second battery BT1, BT2, and when charging complete turns off
First and third metal-oxide-semiconductor Q1, Q3.
(3) charge circuit 2: third inductance L3 and the four~six battery BT4, BT5, BT6, the 9th is controlled by single-chip microcontroller
Metal-oxide-semiconductor Q9 constitutes charge circuit 2, as shown in Figure 9.L3 releases energy at this time, charges to the four~six battery BT4-BT6.
The 9th metal-oxide-semiconductor Q9 is closed when charging complete.
Charge circuit 1 carries out simultaneously with charge circuit 2, realizes that high-voltage battery releases energy, actively to low-voltage battery
Balanced purpose.
D. when the 4th battery BT4 voltage is higher than equalizing voltage threshold value:
(1) control the first battery BT4 electric discharge by single-chip microcontroller: fourth, fifth metal-oxide-semiconductor Q4, Q5 is connected, and the 4th battery BT4 is put
Part energy in 4th battery BT4 is discharged into third and fourth inductance L3, L4 by electricity respectively, at this time third and fourth inductance L3,
L4 energy storage turns off fourth, fifth metal-oxide-semiconductor Q4, Q5 after the completion of energy release as shown in Figure 10.
(2) while controlling charge circuit 1: fourth, fifth metal-oxide-semiconductor Q4, Q5 shutdown by single-chip microcontroller, first, fourth, ten MOS
Pipe Q1, Q4, Q10 conducting, third inductance L3 and the four, the one metal-oxide-semiconductor Q4, Q1, the first~tri- battery BT1, BT2, BT3, which are constituted, to charge
Circuit 1, as shown in figure 11.Third inductance L3 releases energy at this time, charges to the first~tri- battery BT1-BT3.It has charged
At when turn off first, fourth metal-oxide-semiconductor Q1, Q4.
(3) charge circuit 2: the four inductance L4 and the five, the six, ten battery BT5, BT6, Q10 is controlled by single-chip microcontroller to constitute
Charge circuit 2, as shown in figure 12, the 4th inductance L4 releases energy at this time, charges to the five, the six battery BT5, BT6.Charging
Q10 is closed when completion.
Charge circuit 1 carries out simultaneously with charge circuit 2, realizes that high-voltage battery releases energy, actively to low-voltage battery
Balanced purpose.
E. when the 5th battery BT5 voltage is higher than equalizing voltage threshold value:
(1) control the first battery BT5 electric discharge by single-chip microcontroller: the five, the six metal-oxide-semiconductor Q5, Q6 are connected, and the 5th battery BT5 is put
Part energy in 5th battery BT5 is discharged into fourth, fifth inductance L4, L5 by electricity respectively, at this time fourth, fifth inductance L4,
L5 energy storage, as shown in figure 13.The five, the six metal-oxide-semiconductor Q5, Q6 are turned off after the completion of energy release.
(2) while controlling charge circuit 1: the five, six metal-oxide-semiconductor Q5, Q6 shutdown by single-chip microcontroller, first, five, 11
Metal-oxide-semiconductor Q1, Q5, Q11 conducting, the 4th inductance L4 and the five, the one metal-oxide-semiconductor Q5, Q1, the first~tetra- battery BT1, BT2, BT3, BT4
Charge circuit 1 is constituted, as shown in figure 14, the 4th inductance L4 releases energy at this time, fills to the first~tetra- battery BT1-BT4
Electricity.Q1, Q5 are turned off when charging complete.
(3) 2: the five inductance L5 of charge circuit is controlled by single-chip microcontroller and the 6th battery BT6, the 11st metal-oxide-semiconductor Q11 is constituted
Charge circuit 2, as shown in figure 15, the 5th inductance L5 releases energy at this time, charges to the 6th battery BT6.When charging complete
Close the 11st metal-oxide-semiconductor Q11.
Charge circuit 1 carries out simultaneously with charge circuit 2, realizes that high-voltage battery releases energy, actively to low-voltage battery
Balanced purpose.
F. when the 6th battery BT6 voltage is higher than equalizing voltage threshold value:
(1) control the first battery BT6 electric discharge by single-chip microcontroller: the 11st metal-oxide-semiconductor Q11 is connected, the 6th battery BT6 electric discharge,
Part energy in 6th battery BT6 is discharged into the 5th inductance L5, at this time the 5th inductance L5 energy storage, as shown in figure 16.
The 11st metal-oxide-semiconductor Q11 is turned off after the completion of energy release.
(2) charge circuit is controlled by single-chip microcontroller: while the 11st metal-oxide-semiconductor Q11 is turned off, the 6th metal-oxide-semiconductor Q6 conducting, the
Five inductance L5 and the six, the one metal-oxide-semiconductor Q6, Q1, the first~five battery BT1~BT5 constitute charge circuit, as shown in figure 17.At this time
5th inductance L5 releases energy, and charges to the first~five battery BT1~BT5.The 11st metal-oxide-semiconductor is turned off when charging complete
Q11, realize high-voltage battery release energy to low-voltage battery, the purpose of active equalization.
When the cell voltage for occurring two or more in circuit is higher than equalizing voltage threshold value, by voltage value from height
To low sequence alternate loop equilibrium cell voltage, by step 3)~4) control mode discharge, from maximum voltage value
Battery starts to minimum voltage battery to terminate, until voltage value is below equalizing voltage threshold value.Two or more high electricity
Piezoelectric battery can not carry out equilibrium simultaneously.
To sum up, the present invention automatically detects cell voltage by single-chip microcontroller, analyzes, compares, to control metal-oxide-semiconductor
Open and turn off, to battery carry out charge and discharge, achieve the purpose that active equalization between battery, avoid battery overcharge and mistake
It puts.
In the present invention, equalizing voltage threshold value refers to the maximum voltage of the even charging voltage value higher than battery producer defined, such as:
The single battery of model DJ500-II (2V500AH), defined even charging voltage are 2.35V (25 DEG C), then its equalizing voltage
Threshold value is 2.40V.
Claims (5)
1. a kind of active equalization structure of series-connected cell, it is characterised in that: battery, N-1 energy storage electricity with N number of series connection
Sense and+1 metal-oxide-semiconductor of 2 (N-1), wherein 2 (N-1) a metal-oxide-semiconductors are in parallel after being connected in series respectively in pairs, then with 1
Metal-oxide-semiconductor and N number of battery connect to form closed circuit；The instruction output end connection corresponding with single-chip microcontroller of the control terminal of each metal-oxide-semiconductor；N
N-1 battery node is drawn between the adjacent cell of a series connection, draws N-1 in each metal-oxide-semiconductor group between adjacent mos pipe
Metal-oxide-semiconductor node, N-1 metal-oxide-semiconductor node are corresponded with N-1 battery node；N-1 energy storage inductor is connected to correspondence
Battery node and metal-oxide-semiconductor node between.
2. the active equalization structure of series-connected cell according to claim 1, it is characterised in that: each battery both ends are equipped with sampling
Resistance, voltage signal signal input part connection corresponding with single-chip microcontroller.
3. the active equalization structure of series-connected cell according to claim 1, it is characterised in that: the integer that N is 2~24.
4. a kind of equalization methods of the active equalization structure of series-connected cell according to claim 1, it is characterised in that: including
Following steps:
1) single-chip microcontroller acquires the voltage of each battery in battery pack by sampling resistor；
2) single-chip microcontroller is analyzed and processed the voltage of battery each in battery pack；
3) for cell voltage be more than battery balanced threshold voltage, by single-chip microcontroller control be connected in series metal-oxide-semiconductor and with the electricity
One metal-oxide-semiconductor of the corresponding metal-oxide-semiconductor group in pond is connected, and the battery and corresponding metal-oxide-semiconductor and inductance is made to form discharge loop；
4) for other batteries, charge circuit is formed by corresponding metal-oxide-semiconductor, battery and inductance, by being more than battery balanced threshold
The battery of threshold voltage is charged by its discharge loop to other batteries.
5. a kind of equalization methods of the active equalization structure of series-connected cell according to claim 4, it is characterised in that: work as electricity
When the cell voltage for occurring two or more in road is higher than equalizing voltage threshold value, followed by the sequence of voltage value from high to low
Ring balancing battery voltage, by step 3)~4) control mode discharge, until voltage value is below equalizing voltage threshold value.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531856A (en) * | 2020-12-25 | 2021-03-19 | 河北工业大学 | Power battery equalization and heating composite circuit based on inductor and conductive film |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130214733A1 (en) * | 2012-02-16 | 2013-08-22 | Cheng Kung University | Battery equalization circuits for series charging/discharging and controlling methods thereof |
| CN105391130A (en) * | 2015-12-08 | 2016-03-09 | 山东大学 | Multiphase interleaved converter based battery equalization circuit and control method therefor |
| US20170163160A1 (en) * | 2015-12-04 | 2017-06-08 | The Trustees Of Dartmouth College | Modular battery arrays and associated methods |
| CN210167832U (en) * | 2019-08-09 | 2020-03-20 | 沈阳贝特瑞科技有限公司 | Active equalization structure of series batteries |
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2019
- 2019-08-09 CN CN201910733185.XA patent/CN110380490A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130214733A1 (en) * | 2012-02-16 | 2013-08-22 | Cheng Kung University | Battery equalization circuits for series charging/discharging and controlling methods thereof |
| US20170163160A1 (en) * | 2015-12-04 | 2017-06-08 | The Trustees Of Dartmouth College | Modular battery arrays and associated methods |
| CN105391130A (en) * | 2015-12-08 | 2016-03-09 | 山东大学 | Multiphase interleaved converter based battery equalization circuit and control method therefor |
| CN210167832U (en) * | 2019-08-09 | 2020-03-20 | 沈阳贝特瑞科技有限公司 | Active equalization structure of series batteries |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531856A (en) * | 2020-12-25 | 2021-03-19 | 河北工业大学 | Power battery equalization and heating composite circuit based on inductor and conductive film |
| CN112531856B (en) * | 2020-12-25 | 2024-04-12 | 河北工业大学 | Power battery equalization and heating composite circuit based on inductance and conductive film |
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Application publication date: 20191025 |