CN103825333A - Online undervoltage auxiliary charge control circuit and control method for storage batteries - Google Patents
Online undervoltage auxiliary charge control circuit and control method for storage batteries Download PDFInfo
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- CN103825333A CN103825333A CN201410080690.6A CN201410080690A CN103825333A CN 103825333 A CN103825333 A CN 103825333A CN 201410080690 A CN201410080690 A CN 201410080690A CN 103825333 A CN103825333 A CN 103825333A
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- circuit
- auxiliary charging
- storage battery
- voltage
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- 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
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass 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
- H02J7/0029—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 invention designs an online undervoltage auxiliary charge control circuit for storage batteries. Each storage battery is provided with the undervoltage auxiliary charge control circuit, and a series circuit structure is used among contact switch circuits. In order to enable all the undervoltage storage batteries to have a chance to obtain auxiliary charge, the storage batteries which are already subjected to auxiliary charge do not obtain auxiliary charge any more within regulated time. The auxiliary charge control circuit and control method are safe and reliable and have a simple structure.
Description
Technical field: the present invention relates to the under-voltage charging control circuit of a kind of storage battery and control method, especially online under-voltage storage battery is implemented circuit and the method for complementary charging control.
Background technology: in current known batteries, under-voltage storage battery being implemented to online method of charging is, by a Centralized Controller wheel current control, under-voltage storage battery is implemented to complementary boost charge, finally reaches the object of each storage battery equalizing charge.The disadvantage of the method for this concentrator wheel current control auxiliary charging exactly will from each storage battery draw two lines to concentrator as charge power supply line, even if will be installed to after charging control circuit modularization on each storage battery, although charge power supply line has been simplified, but in each module, also to draw connection, be connected on Centralized Controller in the mode of bus.In a word, this method of passing through a Centralized Controller wheel current control under-voltage storage battery is implemented complementary charging, line complexity, security of system is poor.
Summary of the invention
Adopt Centralized Controller line complexity in order to overcome, the shortcoming that fail safe is bad, the present invention has designed the online under-voltage auxiliary charging control circuit of a kind of storage battery, this under-voltage auxiliary charging control circuit is installed on each storage battery, and adopts the circuit structure being connected in series between its contact switch circuit.In order to make all under-voltage storage batterys have an opportunity to obtain auxiliary charging, obtain the storage battery of auxiliary charging, the auxiliary charging of not reentrying in official hour.
The technical solution adopted in the present invention is that storage battery under-voltage in online batteries is implemented to auxiliary charging control, it is characterized in that: first, in one group of online storage battery, main charger charges to whole group storage battery, and auxiliary charging device carries out auxiliary charging to under-voltage storage battery; A circuit board by battery voltage measuring circuit or voltage comparator circuit, timing control circuit and contact switch the electric circuit constitute is installed on each storage battery, contact switch circuit is the dpdt relay circuit of an electronic switching device control closure, or the circuit of two single-pole double throw relay compositions of an electronic switching device control closure; In batteries, on first block of battery circuit plate, the moving contact of two switches of relay is connected respectively to the positive-negative output end of auxiliary charging device, on relay, corresponding two of two moving contacts are connected respectively to the both positive and negative polarity of storage battery long battle, and two two normally closed points corresponding to moving contact are connected respectively to two moving contacts of relay on next circuit board; Be connected respectively to the both positive and negative polarity of storage battery separately two long battles that on other battery circuit plate, two moving contacts of relay are corresponding, two two normally closed points corresponding to moving contact are connected respectively to two moving contacts of relay on next circuit board, between contact switch circuit, are to be connected in series.Second, when tension measuring circuit or voltage comparator circuit detect that battery tension meets lower than a certain set point but during higher than the window auxiliary charging condition of another set point, two switches controlling contact switch circuit relay electrical equipment are docked with storage battery by timing control circuit, due to from auxiliary charging device nearest and switch with normal make war that closed contact switch circuitry cuts auxiliary charging device with the connecting circuit of circuit board below, therefore from auxiliary charging device nearest and switch be docked with long storage battery of making war and first obtained auxiliary charging, charging duration is set by timing control circuit, charge and after storage battery and auxiliary charging device disconnect, tension measuring circuit will be measured battery tension, or voltage comparator circuit is by battery tension and setting voltage comparison, if battery tension is higher than a certain set point, timing control circuit will be controlled this storage battery that has obtained auxiliary charging auxiliary charging of not reentrying in official hour, and connect other storage battery distant and that also meet window auxiliary charging condition from auxiliary charging device, tension measuring circuit thereon or voltage comparator circuit detect after auxiliary charging device voltage, to obtain auxiliary charging.
If increase the RS485 communicating circuit of isolation on every circuit board, under-voltage auxiliary charging control circuit on all storage batterys just can be controlled by host computer, as the setting of storage battery auxiliary charging sequencing, window auxiliary charging condition, auxiliary charging duration, even manual still charging controller can be set by the program of host computer.
Adopt the online under-voltage auxiliary charging control circuit of this storage battery and control method thereof, simple in structure, safe and reliable.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment mono-: the online under-voltage auxiliary charging control circuit of storage battery is by the tension measuring circuit take processor as core and contact switch the electric circuit constitute.
Fig. 1 is the circuit theory diagrams of the present embodiment.
Fig. 2 by externally fed, have two-way identical and with the RS485 communication interface circuit of Fig. 1 main circuit isolation.
Carry A/D analog to digital converter, software programming timing controlled and communication interface because many central processor CPUs have inside, the online under-voltage auxiliary charging control circuit of storage battery adopts and implements voltage measurement, timing controlled and contact switch control take processor CPU as core is best embodiment.
In Fig. 1, B1, B2...Bn are one group of batteries being together in series, and Main Charger is the main charger of storage battery, and BP and BN connect respectively positive pole and the negative pole of batteries.Aux Charger is the auxiliary charging device with transformer isolation, and P and N are respectively its positive-negative output ends.In dotted line frame M1, be battery voltage measuring circuit BVTC and the contact switch circuit SQ take central processor CPU as core, in SQ, there are K switch 1 and the K2 of two controlled contact-carryings, and two switches are all single-pole double-throw switch (SPDT)s, Control C is the control circuit of K1 and K2, be also this contact switch circuit be one be subject to Control C control dpdt relay circuit or by be subject to Control C control two circuit that single-pole double throw relay forms.M1 can be integrated on a circuit board, also can be by M1 modularization, so that be arranged on storage battery.Dotted line frame M2...Mn is circuit board or the module that is equal to M1.P1 and N1 are respectively the both positive and negative polarities of storage battery B1, and P2 and N2 are respectively the both positive and negative polarities of storage battery B2, the like, Pn and Nn are respectively the both positive and negative polarities of Bn.P1 and N1 connect respectively M1 repeat circuit and often make war 8 and 6, same, and P2 and N2 connect respectively M2 repeat circuit and often make war 8 and 6, and by that analogy, Pn and Nn connect respectively Mn repeat circuit and often make war 8 and 6.1 pin V in SQ
dDthe power supply of K1 and K2 control circuit Control C, 11 pin V
cCbe the power supply of CPU and tension measuring circuit BVTC, VDD can share with VCC, also can take from storage battery; 2 pin and 10 pin are the ground of power supply.Pin 9 is input points of storage battery B1 tension measuring circuit BVTC, and pin 12 is CPU output control signal ends, and this signal is delivered to 13 pin of the control circuit Control C of K1 and K2 in SQ.The P of Aux Charger and N connect respectively the moving contact 3 and 4 of SQ on first storage battery B1 circuit board, 3 contact with 5 with the normally closed point 7 of K2 and K1 respectively with 4, the normally closed point of K2 and K1 is connected respectively to lead-out terminal Po and the No on M1, and Po and No are connected respectively to the moving contact 3 and 4 of relay switch K2, K1 in next dotted line frame M2.Similarly, in M2,3 contact with 5 with the normally closed point 7 of K2 and K1 respectively with 4, and the normally closed point of K2 and K1 is connected respectively to lead-out terminal Po and the No on M2, and Po and No are connected respectively to the moving contact 3 and 4 of relay switch K2, K1 in next dotted line frame M3.The like, in Mn-1,3 contact with 5 with the normally closed point 7 of K2 and K1 respectively with 4, and the normally closed point of K2 and K1 is connected respectively to lead-out terminal Po and the No on Mn-1, and Po and No are connected respectively to the moving contact 3 and 4 of relay switch K2, K1 in next dotted line frame Mn.Be between the relay on the contact switch circuit in M1, M2, M3...Mn, to be to be connected in series by long close point.
When the tension measuring circuit BVTC on certain or certain several circuit boards detects that battery tension meets lower than a certain set point but during higher than the window auxiliary charging condition of another set point, central processor CPU outputs control signals to pin 13, and Control C is connected two moving contacts 3,4 of controlling two K switch 1, K2 respectively with two normal battles 8,6, connect nearest control relay circuit from auxiliary charging device Aux Charger and first obtain charging current from auxiliary charging device Aux Charger, and other the contact switch circuit that also meets under-voltage auxiliary charging condition, although the K1 on it and K2 are also closed, but nearest and to the K1 in the contact switch circuit of its charge in batteries owing to connecting from auxiliary charging device Aux Charger, K2 has cut off all auxiliary charging device power supply circuits below, corresponding storage battery can not get charging current, and the contact switch circuit that first obtains charging current will be by control program official hour in processor CPU to its charge in batteries, when charging complete and circuit board on or after contact switch circuit in module and auxiliary charging device Aux Charger disconnect, tension measuring circuit BVTC will measure battery tension, if voltage is higher than the magnitude of voltage of processor CPU program setting, the timer control routine of CPU has obtained auxiliary charging storage battery to this will no longer allow it obtain auxiliary charging in official hour, and connect other storage battery distant and that also meet window charge condition from auxiliary charging device, tension measuring circuit BVTC thereon detects after auxiliary charging device voltage, to obtain auxiliary under-voltage charging.
Fig. 2 is a kind of conventional RS485 communicating circuit with photoelectricity isolation that can increase in every circuit board or module.In Fig. 2, ADM2483BRW is the RS485 Special Interface Chip of band isolation, and RS485_TX/RX, CPU_TXD are the interfaces being connected with central processor CPU with CPU_RXD, its internal electric source VCC and processor cpu control circuit power sharing; RS485_A1, RS485_B1 are the ports being connected with host computer with RS485_A2, RS485_B2, and VDD1, G1 and VDD2, G2 are externally fed power supplys; RS485_A1, RS485B1, VDD1, G1 and RS485A2, RS485B2, VDD2, G2 are called as two identical RS485 communication interfaces by externally fed on device.The object that on device these two identical interfaces is set be convenient to other storage battery on same device be concatenated into bus structures.
If increased the RS485 communication interface circuit of Fig. 2 in every circuit board or module, in batteries, all under-voltage auxiliary charging control circuits just can be controlled by host computer, as the setting of storage battery auxiliary charging sequencing, window auxiliary charging condition, auxiliary charging duration, even manual still charging controller can be set by the program of host computer.
Embodiment bis-: the online under-voltage auxiliary charging control circuit of storage battery is by with voltage comparator circuit, timing control circuit and contact switch the electric circuit constitute.
Fig. 3 is the schematic diagram of the present embodiment.
If the online under-voltage auxiliary charging control circuit of storage battery does not adopt by the tension measuring circuit take processor as core, and adopt voltage comparator circuit, timing control circuit and contact switch circuit, be also a kind of scheme that can realize the online under-voltage auxiliary charging control of storage battery.
In Fig. 3, B1, B2...Bn are one group of batteries being together in series, and Main Charger is the charger of batteries, and BP and BN connect respectively positive pole and the negative pole of batteries.Aux Charger is the auxiliary charging device with transformer isolation, and P and N are respectively its positive-negative output ends.It in dotted line frame M1, is the online under-voltage auxiliary charging control circuit of storage battery of window voltage comparator circuit WVC, univoltage comparator circuit SVC, time control circuit Timer C and contact switch circuit SQ composition.In SQ, there are K switch 1 and the K2 of two controlled contact-carryings, and two switches are all single-pole double-throw switch (SPDT)s, Control C is the control circuit of K1 and K2, be also this contact switch circuit be one be subject to Control C control dpdt relay circuit or by be subject to Control C control two circuit that single-pole double throw relay forms.M1 can be integrated on a circuit board, also can be by M1 modularization, so that be arranged on storage battery.Dotted line frame M2...Mn is circuit board or the module that is equal to M1.P1 and N1 are respectively the both positive and negative polarities of storage battery B1, and P2 and N2 are respectively the both positive and negative polarities of storage battery B2, the like, Pn and Nn are respectively the both positive and negative polarities of Bn.P1 and N1 connect respectively M1 repeat circuit and often make war 8 and 6, same, and P2 and N2 connect respectively M2 repeat circuit and often make war 8 and 6, and by that analogy, Pn and Nn connect respectively Mn repeat circuit and often make war 8 and 6.1 pin V in SQ
dDthe power supply of K1 and K2 control circuit ControlC, the shared V of 2,17,18 pin
cCthe power supply of window voltage comparator circuit WVC, univoltage comparator circuit SVC, time control circuit Timer C, V
dDcan with V
cCshare, also can take from storage battery; G is the ground of power supply.Pin 9 and pin 12 are respectively voltage input point and the reference voltage U of storage battery B1 in univoltage comparator SVC circuit
gset point, pin 19 is the control signal output of time control circuit TimerC, this signal is delivered to control circuit 13 pin of K1 and K2 in SQ.The P of Aux Charger and N connect respectively the moving contact 3 and 4 of SQ on first storage battery B1 circuit board, 3 contact with 5 with the normally closed point 7 of K2 and K1 respectively with 4, the normally closed point of K2 and K1 is connected respectively to lead-out terminal Po and the No on M1, and Po and No are connected respectively to the moving contact 3 and 4 of relay switch K2, K1 in next dotted line frame M2.Similarly, in M2,3 contact with 5 with the normally closed point 7 of K2 and K1 respectively with 4, and the normally closed point of K2 and K1 is connected respectively to lead-out terminal Po and the No on M2, and Po and No are connected respectively to the moving contact 3 and 4 of relay switch K2, K1 in next dotted line frame M3.The like, in Mn-1,3 contact with 5 with the normally closed point 7 of K2 and K1 respectively with 4, and the normally closed point of K2 and K1 is connected respectively to lead-out terminal Po and the No on Mn-1, and Po and No are connected respectively to the moving contact 3 and 4 of relay switch K2, K1 in next dotted line frame Mn.Be to be connected in series by long close point between the relay on the contact switch circuit in M1, M2, M3...Mn.
When detecting battery tension, the window voltage comparison circuit WVC on certain or certain several circuit boards meets lower than set point U
hbut higher than set point U
lwindow auxiliary charging condition time, time control circuit outputs control signals to pin 13, Control C will control two K switch 1, two moving contacts 3 of K2, 4 often make war 8 with two respectively, 6 connect: connect nearest control relay circuit from auxiliary charging device Aux Charger and first obtain charging current from auxiliary charging device Aux Charger, and other the contact switch circuit that also meets under-voltage auxiliary charging condition, although the K1 on it and K2 are also closed, but nearest and to the K1 in the contact switch circuit of its charge in batteries owing to connecting from auxiliary charging device Aux Charger, K2 has cut off all auxiliary charging device power supply circuits below, corresponding storage battery can not get charging current, and the contact switch circuit that first obtains charging current will be by time control circuit official hour to its charge in batteries, when charging complete and circuit board on or after contact switch circuit in module and auxiliary charging device Aux Charger disconnect, voltage comparator circuit SVC will judge battery tension, if battery tension is higher than the magnitude of voltage U setting
gtiming control circuit Timer C has obtained auxiliary charging storage battery to this will no longer allow it obtain auxiliary charging in official hour, and connect other storage battery distant and that also meet window charge condition from auxiliary charging device, voltage comparator circuit SVC thereon detects after auxiliary charging device voltage, will obtain auxiliary under-voltage charging.
Claims (4)
1. the online under-voltage auxiliary charging control circuit of storage battery and control method, circuit and the control method of storage battery under-voltage in online batteries being implemented to auxiliary charging control, it is characterized in that in one group of online storage battery, main charger charges to whole group storage battery, and auxiliary charging device carries out auxiliary charging to under-voltage storage battery; A circuit board by battery voltage measuring circuit or voltage comparator circuit, timing control circuit and contact switch the electric circuit constitute is installed on each storage battery, contact switch circuit is the dpdt relay circuit of an electronic switching device control closure, or the circuit of two single-pole double throw relay compositions of an electronic switching device control closure; In batteries, on first block of battery circuit plate, the moving contact of two switches of relay is connected respectively to the positive-negative output end of auxiliary charging device, on relay, corresponding two of two moving contacts are connected respectively to the both positive and negative polarity of storage battery long battle, and two two normally closed points corresponding to moving contact are connected respectively to two moving contacts of relay on next circuit board; Be connected respectively to the both positive and negative polarity of storage battery separately two long battles that on other battery circuit plate, two moving contacts of relay are corresponding, two two normally closed points corresponding to moving contact are connected respectively to two moving contacts of relay on next circuit board, between contact switch circuit, are to be connected in series.
2. the online under-voltage auxiliary charging control circuit of a kind of storage battery according to claim 1 and control method, when tension measuring circuit or voltage comparator circuit detect that battery tension meets lower than a certain set point but during higher than the window auxiliary charging condition of another set point, two switches controlling contact switch circuit relay electrical equipment are docked with storage battery by timing control circuit, due to from auxiliary charging device nearest and switch with normal make war that closed contact switch circuitry cuts auxiliary charging device with the connecting circuit of circuit board below, therefore from auxiliary charging device nearest and switch be docked with long storage battery of making war and first obtained auxiliary charging, charging duration is set by timing control circuit, charge and after storage battery and auxiliary charging device disconnect, tension measuring circuit will be measured battery tension, or voltage comparator circuit is by battery tension and setting voltage comparison, if battery tension is higher than a certain set point, timing control circuit will be controlled this storage battery that has obtained auxiliary charging auxiliary charging of not reentrying in official hour, and connect other storage battery distant and that also meet window auxiliary charging condition from auxiliary charging device, tension measuring circuit thereon or voltage comparator circuit detect after auxiliary charging device voltage, to obtain auxiliary charging.
3. the control method of the online under-voltage auxiliary charging control circuit of a kind of storage battery according to claim 1, adopting central processor CPU is that to implement voltage measurement, software programming timing controlled and contact switch control be best embodiment to core, adopting voltage comparator circuit, timing control circuit and contact switch circuit, is another scheme that realizes the online under-voltage auxiliary charging control of storage battery.
4. the control method of the online under-voltage auxiliary charging control circuit of a kind of storage battery according to claim 1, if increase the RS485 communicating circuit of isolation on every circuit board, under-voltage auxiliary charging control circuit on all storage batterys just can be controlled by host computer, as the setting of storage battery auxiliary charging sequencing, window auxiliary charging condition, auxiliary charging duration, even manual still charging controller can be set by the program of host computer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410080690.6A CN103825333B (en) | 2014-03-06 | 2014-03-06 | The control method of the online under-voltage auxiliary charging control circuit of a kind of battery |
| PCT/CN2015/000108 WO2015131657A1 (en) | 2014-03-06 | 2015-02-17 | Online undervoltage auxiliary charging control circuit and control method for storage batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410080690.6A CN103825333B (en) | 2014-03-06 | 2014-03-06 | The control method of the online under-voltage auxiliary charging control circuit of a kind of battery |
Publications (2)
| Publication Number | Publication Date |
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| CN103825333A true CN103825333A (en) | 2014-05-28 |
| CN103825333B CN103825333B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410080690.6A Expired - Fee Related CN103825333B (en) | 2014-03-06 | 2014-03-06 | The control method of the online under-voltage auxiliary charging control circuit of a kind of battery |
Country Status (2)
| Country | Link |
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| CN (1) | CN103825333B (en) |
| WO (1) | WO2015131657A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015131657A1 (en) * | 2014-03-06 | 2015-09-11 | 王晓秋 | Online undervoltage auxiliary charging control circuit and control method for storage batteries |
| CN107742914A (en) * | 2017-11-15 | 2018-02-27 | 王晓秋 | Integrated Service Digital Network news technology between controller and lithium battery module BMS |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017438B (en) * | 2016-06-12 | 2023-11-03 | 保定钰鑫电气科技有限公司 | Switch built-in lead-acid storage battery |
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| US6111388A (en) * | 1997-02-14 | 2000-08-29 | Seiko Instruments Inc. | Charge and discharge control circuit |
| CN201388075Y (en) * | 2009-04-01 | 2010-01-20 | 贵州省机电研究设计院 | Charge and discharge control system of multi-unit parallel heavy-current storage batteries |
| CN201490741U (en) * | 2009-09-03 | 2010-05-26 | 深圳市晖谱能源科技有限公司 | Battery balanced charging device |
| CN103051019A (en) * | 2012-12-10 | 2013-04-17 | 王奉瑾 | Battery pack series-parallel switching control system and charge and discharge control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645610A (en) * | 2009-09-03 | 2010-02-10 | 深圳市晖谱能源科技有限公司 | Device for equalizing charge of battery and method thereof |
| KR101451806B1 (en) * | 2010-09-16 | 2014-10-17 | 삼성에스디아이 주식회사 | Energy storage system |
| CN201829982U (en) * | 2010-10-21 | 2011-05-11 | 南京德朔实业有限公司 | Battery equalizing charging device |
| CN102668315A (en) * | 2011-03-21 | 2012-09-12 | 上海中智能源科技有限公司 | Method and apparatus for balancing discharging of each battery in battery group |
| CN102231546B (en) * | 2011-06-30 | 2013-07-17 | 武汉市菱电汽车电子有限责任公司 | Battery management system with balanced charge and discharge functions and control method thereof |
| CN103825333B (en) * | 2014-03-06 | 2016-05-11 | 王晓秋 | The control method of the online under-voltage auxiliary charging control circuit of a kind of battery |
-
2014
- 2014-03-06 CN CN201410080690.6A patent/CN103825333B/en not_active Expired - Fee Related
-
2015
- 2015-02-17 WO PCT/CN2015/000108 patent/WO2015131657A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6111388A (en) * | 1997-02-14 | 2000-08-29 | Seiko Instruments Inc. | Charge and discharge control circuit |
| CN201388075Y (en) * | 2009-04-01 | 2010-01-20 | 贵州省机电研究设计院 | Charge and discharge control system of multi-unit parallel heavy-current storage batteries |
| CN201490741U (en) * | 2009-09-03 | 2010-05-26 | 深圳市晖谱能源科技有限公司 | Battery balanced charging device |
| CN103051019A (en) * | 2012-12-10 | 2013-04-17 | 王奉瑾 | Battery pack series-parallel switching control system and charge and discharge control method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015131657A1 (en) * | 2014-03-06 | 2015-09-11 | 王晓秋 | Online undervoltage auxiliary charging control circuit and control method for storage batteries |
| CN107742914A (en) * | 2017-11-15 | 2018-02-27 | 王晓秋 | Integrated Service Digital Network news technology between controller and lithium battery module BMS |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103825333B (en) | 2016-05-11 |
| WO2015131657A1 (en) | 2015-09-11 |
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