CN104701913A - Power supply device with current equalization function and battery module thereof - Google Patents
Power supply device with current equalization function and battery module thereof Download PDFInfo
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- CN104701913A CN104701913A CN201310661980.5A CN201310661980A CN104701913A CN 104701913 A CN104701913 A CN 104701913A CN 201310661980 A CN201310661980 A CN 201310661980A CN 104701913 A CN104701913 A CN 104701913A
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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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- 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
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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- 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
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to a power supply device with a current equalization function and a battery module thereof. The power supply device comprises a master controller and a plurality of battery modules connected in parallel; the battery modules output multiple state signals according to quantities of output currents output by battery units of the battery modules; the master controller outputs multiple current equalization control commands according to the current state signals so as to control the battery modules to adjust the quantities of the output currents. Therefore, the battery modules can adjust the output currents of their battery units on their own, the battery units are protected from damage caused by forced discharging, and the quantities of the output currents are made equal.
Description
Technical field
The present invention relates to a kind of electric supply installation and battery modules thereof, espespecially a kind of electric supply installation of sharing control and battery modules thereof.
Background technology
At present, many electronic products or the vehicles are had to be using Secondary battery as supply power supply on the market.Wherein, again with vehicles such as locomotives by the extreme dependence of popular institute, its quantity is not only numerous, and presents growth trends especially every year, and therefore the demand of fuel oil is very considerable.Moreover fuel price hurricane rises in recent years, and the oil consumption that on the earth, petroleum resources imperfect combustion that is day by day exhausted, fuel oil causes is too high and the variety of problems such as toxic emission is not solved effectively all the time; Therefore, many dealers are in order to use other alternative energy source in recent years, just have developed electric motor car.
So, in order to the electronic product of becoming stronger day by day in response to function or the vehicles, and height is exported to the actual demand of Electronic power batteries, the practice technology of battery industry circle, be after multiple battery is connected in series or parallel, form one and export the higher Assembled battery of electricity, using as electric supply installation.
But, utilize the electric supply installation that multiple serial battery or parallel connection form, usually the output current of those batteries of its inside can be subject to the impact of system end (load end), namely when system end needs big current, those batteries can be forced to electric discharge, so, those battery damage are easily caused.In addition, if the output current of those batteries is different, then represent that the time of those runs out of battery power is different, so percentage of batteries may be caused also to store energy and continue electric discharge, and percentage of batteries has exhausted stored energy, so not only can cause those battery over-discharges, and the power supplying efficiency of electric supply installation can be caused to decline.Therefore, how to manage the output current of those batteries, be considerable problem in this industry.
Therefore, the present invention is directed to electric supply installation and battery modules thereof that the problems referred to above provide a kind of sharing control.
Summary of the invention
An object of the present invention, be electric supply installation and battery modules thereof that a kind of sharing control is provided, its current status signal exported according to multiple battery modules by a master controller, and export multiple sharing control order to those battery modules, to control the magnitude of current of the output current of those battery modules, and reach the power supplying efficiency promoting electric supply installation.
An object of the present invention, be electric supply installation and battery modules thereof that a kind of sharing control is provided, by detecting respectively and judging that whether the magnitude of current of the output current of each battery modules is higher or lower than fiducial value, make a master controller control the magnitude of current of the output current that the adjustment of those battery modules exports according to judged result, suffer forced electric discharge and impaired to avoid those battery modules.
An object of the present invention, be electric supply installation and battery modules thereof that a kind of sharing control is provided, by detecting respectively and judging that whether the magnitude of current of the output current of each battery modules is higher or lower than fiducial value, make a master controller control the magnitude of current of the output current that the adjustment of those battery modules exports according to judged result, make the magnitude of current of those output currents identical.
In order to reach above-mentioned censured each object and effect, present invention is disclosed a kind of electric supply installation of sharing control, it comprises: multiple battery modules, those battery modules are connected in parallel to each other, and export multiple output current respectively, and those battery modules export multiple current status signal respectively according to the magnitude of current of those output currents; And a master controller, couple those battery modules, and according to those current status signals, and export multiple sharing control order respectively to those battery modules; Wherein, those battery modules respectively according to those sharing control orders, and adjust the magnitude of current of those output currents exported.
The present invention more discloses a kind of battery modules of electric supply installation of sharing control, and it comprises: a battery unit, for providing an output current; One current sense unit, couples battery unit, and detects the magnitude of current of output current, and exports a detection signal; One control unit, couples current sense unit, and exports current status signal to master controller according to detection signal, and master controller returns a sharing control order to control unit according to current status signal, makes control unit export a conducting and controls signal; And one first switch element, couple battery unit and control unit, and control according to conducting the conducting degree that signal determines the first switch element, conducting degree determines the magnitude of current flowing through the output current of the first switch element.
The present invention more discloses a kind of method of supplying power to of sharing control, and its step comprises: multiple battery modules be connected in parallel to each other, and exports multiple output current respectively; Respectively according to the magnitude of current of those output currents, and export multiple current status signal; One master controller is coupled those battery modules, and according to those current status signals, and export multiple sharing control order respectively to those battery modules; And respectively according to those sharing control orders, and adjust the magnitude of current of those output currents exported.
Implementing the beneficial effect that the present invention produces is: multiple battery modules of the present invention can distinguish the output current of the battery unit of self-adjustment own, to avoid those battery units to suffer forced electric discharge and impaired, and makes the magnitude of current of those output currents identical.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of the electric supply installation of sharing control of the present invention;
Fig. 2 is the stereogram of the electric supply installation of the sharing control of a preferred embodiment of the present invention;
Fig. 3 is the circuit block diagram of the battery modules of the first embodiment of the present invention;
Fig. 4 is the oscillogram of the linear zone of transistor;
Fig. 5 is the circuit block diagram of the battery modules of the second embodiment of the present invention;
Fig. 6 is the circuit block diagram of the battery modules of the third embodiment of the present invention;
Fig. 7 is the circuit block diagram of the battery modules of the fourth embodiment of the present invention; And
Fig. 8 is the circuit block diagram of the control unit of a preferred embodiment of the present invention.
[figure number is to as directed]
10,11,12,13,14 connectors
21 battery units
22 current sense unit
23 control units
231 analog-digital converters
233 logical circuits
235 digital analog converters
24,25 switch elements
26,27 buffer cells
28 protection switches
BM1, BM2, BMN-1, BMN battery modules
BUS bus
CS1, CS2, CSN current status signal
The order of CSC1, CSC2, CSCN sharing control
DTS detection signal
DS digital signal
I
o1, I
o2, I
oNoutput current
MC master controller
OCS conducting controls signal
SW switches signal
Embodiment
Some vocabulary is employed to censure specific assembly in the middle of specification and follow-up claim.Person with usual knowledge in their respective areas should understand, and hardware manufacturer may call same assembly with different nouns.This specification and follow-up claim are not used as with the difference of title the mode distinguishing assembly, but are used as the criterion of differentiation with assembly difference functionally." comprising " mentioned in the middle of specification and follow-up claims is in the whole text an open term, therefore should be construed to " comprise but be not limited to ".In addition, " coupling " word at this is comprise directly any and be indirectly electrically connected means.Therefore, if describe a first device in literary composition to be coupled to one second device, then represent this first device and directly can be electrically connected in this second device, or be indirectly electrically connected to this second device through other device or connection means.
In order to make architectural feature of the present invention and effect of reaching have a better understanding and awareness, spy's preferred embodiment and coordinate detailed description, is described as follows:
Refer to Fig. 1, it is the circuit block diagram of the electric supply installation of sharing control of the present invention.As shown in the figure, electric supply installation of the present invention comprises multiple battery modules BM1, BM2-BMN and a master controller MC.Those battery modules BM1, BM2-BMN are connected in parallel to each other, and export multiple output current I respectively
o1, I
o2-I
oN, and those battery modules BM1, BM2-BMN are respectively according to those output currents I
o1, I
o2-I
oNthe magnitude of current and export multiple current status signal CS1, CS2-CSN.Master controller MC couples those battery modules BM1, BM2-BMN, such as master controller MC can couple those battery modules BM1, BM2-BMN by shared unified bus, and according to those current status signals CS1, CS2-CSN, and export multiple sharing control order CSC1, CSC2-CSCN respectively to those battery modules BM1, BM2-BMN, make those battery modules BM1, BM2-BMN respectively according to those sharing control orders CSC1, CSC2-CSCN, and adjust those output currents I exported
o1, I
o2-I
oNthe magnitude of current.In the present embodiment, electric supply installation more can comprise a bus B US (such as RS-485 bus) in order to master controller MC is coupled those battery modules BM1, BM2-BMN, and transmits those current status signal CS1, CS2-CSN and those sharing control orders CSC1, CSC2-CSCN.
And, when the electric supply installation of sharing control of the present invention need be used, that is the step of the step of the method for supplying power to of sharing control of the present invention comprises, first those battery modules BM1, BM2-BMN are one another in series, to make those battery modules BM1, BM2-BMN exports those output currents I
o1, I
o2-I
oN.Then, those battery modules BM1, BM2-BMN are respectively according to those output currents (I exported own
o1, I
o2or I
oN) the magnitude of current, and export those current status signals CS1, CS2-CSN.Then, master controller MC is coupled those battery modules BM1, BM2-BMN, and master controller MC is according to those current status signals CS1, CS2-CSN, and export those sharing control orders CSC1, CSC2-CSCN respectively to those battery modules BM1, BM2-BMN.Finally, those battery modules BM1, BM2-BMN respectively according to those sharing control orders CSC1, CSC2-CSCN, and adjust those output currents I exported
o1, I
o2-I
oNthe magnitude of current.
Wherein, those battery modules BM1, the BM2-BMN output current (I that exports of detecting itself respectively
o1, I
o2or I
oN) the magnitude of current, and judge output current (I
o1, I
o2or I
oN) the magnitude of current whether higher or lower than a fiducial value, and corresponding output current status command signal (CS1, CS2 or CSN) is to master controller 20, that is battery modules BM1 detects output current I
o1the magnitude of current, and judge output current I
o1the magnitude of current higher or lower than fiducial value, corresponding output current status command signal CS1, battery modules BM2 detect output current I
o2the magnitude of current, and judge output current I
o2the magnitude of current whether corresponding output current status command signal CS2 higher or lower than fiducial value, all the other are then by that analogy.
Master controller MC be then learn those battery modules BM1 respectively according to those current status signal CS1, CS2-CSN, those output currents I that BM2-BMN exports
o1, I
o2-I
oNthe magnitude of current whether higher or lower than fiducial value, and return respectively those sharing control orders CSC1, CSC2-CSCN to those battery modules BM1, BM2-BMN (that is passback sharing control order CSC1 to battery modules BM1, passback sharing control order CSC2 to battery modules BM2 ..., passback sharing control order CSCN is to battery modules BMN), to control those output currents of those battery modules BM1, BM2-BMN oneself adjustment I
o1, I
o2-I
oNthe magnitude of current.
Such as, when reference value is 1 ampere (A), and electric supply installation is in time powering, and battery modules BM1 exports the output current I of 1.1 amperes
o1, and battery modules BM2 exports the output current I of 0.9 ampere
o2.Now, battery modules BM1 detects output current I
o1be 1.1 amperes and judge that it is higher than fiducial value, and exporting the corresponding current status signal CS1 to master controller MC higher than fiducial value, master controller MC then exports sharing control order CSC1 according to current status signal CS1, makes battery modules BM1 turn down output current I
o1the magnitude of current, until output current I
o1the magnitude of current equal fiducial value.In addition, battery modules BM2 detects output current I
o2be 0.9 ampere and judge that it is lower than fiducial value, and exporting the corresponding current status signal CS2 to master controller MC lower than fiducial value, master controller MC then exports sharing control order CSC2 according to current status signal CS2, makes battery modules BM2 heighten output current I
o2the magnitude of current, until output current I
o2equal fiducial value.
See also Fig. 2, it is the stereogram of the electric supply installation of the sharing control of a preferred embodiment of the present invention.As shown in the figure, master controller MC is designed to a pedestal by the present embodiment, and there is multiple connector 10, in order to be electrically connected those battery modules BM1, BM2-BMN-1, BMN, make those the battery modules BM1 of those connectors 10 being connected to master controller MC, BM2-BMN-1, BMN for being connected in parallel.And the top of those battery modules BM1, BM2-BMN-1, BMN also has multiple connector 11,12,13 and 14, export those output currents I for electric connection system end (load end)
o1, I
o2-I
oN, or also can be used for being connected in series more battery modules.
Wherein, in fact the master controller MC of the present embodiment has four connectors 10, wherein three be connected to those battery modules BM1, BM2, BMN bottom and be not illustrated in figure, but the present embodiment is only a preferred embodiment of the present invention, and is not used to limit the present invention.
See also Fig. 3, it is the circuit block diagram of the battery modules of the first embodiment of the present invention.Because the circuit framework of those the battery modules BM1 in Fig. 1, BM2-BMN is all identical, therefore the present embodiment is only described with battery modules BM1.As shown in the figure, battery modules BM1 comprises battery unit 21, current sense unit 22, control unit 23 and a switch element 24.Battery unit 21 is for providing output current I
o1.Current sense unit 22 couples battery unit 21, and detects output current I
o1the magnitude of current, and export a detection signal DTS.Control unit 23 couples current sense unit 22, and judges output current I according to detection signal DTS
o1the magnitude of current whether higher or lower than fiducial value, and output current status command signal CS1 is to master controller MC, make master controller MC return sharing control order CSC1 to control unit 23 according to current status signal CS1, and control unit 23 export a conducting control signal OCS to switch element 24 according to sharing control order CSC1.Switch element 24 couples battery unit 21 and control unit 23, and controls the conducting degree of signal OCS decision itself according to conducting, and the conducting degree of switch element 24 is in order to determine the output current I flowing through switch element 24
o1the magnitude of current.
Wherein, battery unit 21 can be any rechargeable battery known in the art, such as lead accumulator, nickel-cadmium cell, Ni-MH battery or lithium battery etc.And switch element 24 can be a power transistor (Power Transistor), and can be N-type transistor or P-type crystal pipe, output current I
o1flow through a drain and the one source pole (relation that couples of drain and source electrode is depending on transistor varieties) of switch element 24, one gate of switch element 24 then couples control unit 23 and controls signal OCS to receive conducting, and control signal OCS according to conducting and operate in linear zone and (refer to Fig. 4, the oscillogram of the linear zone of transistor, wherein V
dSrepresent the potential difference between drain and source electrode), with the conducting degree between the drain of control switch unit 24 and source electrode.
Such as, when control unit 23 judges output current I
o1the magnitude of current higher than fiducial value time, master controller MC returns sharing control order CSC1 to control unit 23 according to control unit 23 current status signal CS1, control unit 23 is made to reduce the level of conducting control signal OCS that it exports, and then reduce the conducting degree of switch element 24, to reduce output current I
o1the magnitude of current to fiducial value.And when control unit 23 judges output current I
o1the magnitude of current lower than fiducial value time, master controller MC returns sharing control order CSC1 to control unit 23 according to control unit 23 current status signal CS1, control unit 23 is made to promote the level of conducting control signal OCS that it exports, and then the conducting degree of lifting switch unit 24, to increase output current I
o1the magnitude of current to fiducial value.
So, when the present invention has multiple battery modules BM1, BM2-BMN (Fig. 1), can by those output currents I by those battery modules BM1, BM2-BMN
o1, I
o2-I
oNall be adjusted to fiducial value, and make those output currents I of those battery modules BM1, BM2-BMN
o1, I
o2-I
oNthe magnitude of current all identical, to reach the object of current-sharing.
Further, master controller MC can learn output current I according to current status signal CS1
o1with the gap of fiducial value, and the sharing control order CSC1 that decision exports, and then the conducting degree of the lifting of decision wish or reduction switch element 24, that is work as output current I
o1the magnitude of current more higher than fiducial value, master controller MC then reduces conducting and controls the level of signal OCS to lower, to reduce the conducting degree of switch element 24 to less, and then more reduces output current I
o1the magnitude of current.And as output current I
o1the magnitude of current more lower than fiducial value, master controller MC then promotes conducting and controls the level of signal OCS to higher, with the conducting degree of lifting switch unit 24 to higher, and then more promotes output current I
o1the magnitude of current.
In addition, though in the present embodiment, be judge output current I with control unit 23
o1the magnitude of current whether higher or lower than fiducial value, but in fact, the present invention is not as limit, and the present invention also can by master controller MC as judging output current I
o1the magnitude of current whether higher or lower than the assembly of fiducial value.
Refer to Fig. 5, it is the circuit block diagram of the battery modules of the second embodiment of the present invention.The difference of the present embodiment and previous embodiment is, the present embodiment more comprises a switch element 25, and all the other are then identical and repeat no more.
As shown in the figure, switch element 25 couples battery unit 21 and control unit 23, and be controlled by that control unit 23 exports one switches signal SW, and conducting or cut-off output current I
o1.So, can when battery unit 21 discharges conducting output current I
o1export system end to, and end output current I when battery unit 21 charges
o1export system end to.
Wherein, switch element 25 also can be power transistor, and can be N-type transistor or P-type crystal pipe, output current I
o1flow through a drain and the one source pole (relation that couples of drain and source electrode is depending on transistor varieties) of switch element 25, one gate of switch element 25 then couples control unit 23 and switches signal SW to receive, and conducting or cut-off according to switching signal SW.
In addition, though the switch element 24 and 25 illustrated in the present embodiment is the negative pole ends being coupled to battery unit 21, but the present invention is not as limit, as shown in the circuit block diagram of the battery modules of Fig. 6 third embodiment of the present invention, switch element 24 and/or 25 also can be coupled to the positive terminal of battery unit 21, as long as switch element 24 and/or 25 is coupled to battery unit 21, and in order to conducting or cut-off output current I
o1.
Refer to Fig. 7, it is the circuit block diagram of the battery modules of the fourth embodiment of the present invention.The difference of the present embodiment and preceding embodiment is, the present embodiment more comprises multiple buffer cell 26, a 27 and protection switch 28, and all the other are then identical and repeat no more.
As shown in the figure, buffer cell 26 is coupled between control unit 23 and switch element 24, and controls signal OCS for cushioning conducting.And buffer cell 27 is coupled between control unit 23 and switch element 25, and switch signal SW for cushioning.Protection switch 28 is coupled to output or the output current I of battery unit 21
o1the path flowed through, and for the protection of battery modules BM1, when having overcurrent or superpotential situation, protection switch 28 cut-off, with prevent battery modules BM1 or system end impaired.
Refer to Fig. 8, it is the circuit block diagram of the control unit of a preferred embodiment of the present invention.As shown in the figure, control unit 23 comprises analog-digital converter 231, logical circuit 233 and a digital analog converter 235.Analog-digital converter 231 couples current sense unit 22, and exports logical circuit 233 to after detection signal DTS being converted to a digital signal DS.Logical circuit 233 couples analog-digital converter 233, and judges output current I according to digital signal DS
o1the magnitude of current whether higher than fiducial value, and corresponding output current status command signal CS1.Digital analog converter 235 couples logic circuit 233, and the sharing control order CSC1 receiving that via logical circuit 233 master controller MC returns, and sharing control order CSC1 is converted to after conducting controls signal OCS and exports.
Wherein, if when control unit 23 needs output switching signal SW with control switch unit 25, logical circuit 233 more can directly output switching signal SW to switch element 25.
In sum, the electric supply installation of sharing control of the present invention and battery modules thereof, wherein electric supply installation comprises a master controller and the multiple battery modules be connected in parallel respectively, the magnitude of current of the output current that those battery modules export according to battery unit own, and export multiple current status signal, master controller then according to those current status signals, and exports multiple sharing control order, to control the magnitude of current of those output currents that the adjustment of those battery modules exports.So, those battery modules of the present invention can distinguish the output current of the battery unit of self-adjustment own, to make the magnitude of current of the output current of those battery units all identical, to promote the power supplying efficiency of electric supply installation, and those battery units can be avoided to suffer forced electric discharge and impaired.
Above is only preferred embodiment of the present invention, not be used for limiting scope of the invention process, all equalizations of doing according to shape, structure, feature and the spirit described in the claims in the present invention scope change and modify, and all should be included in right of the present invention.
Claims (13)
1. an electric supply installation for sharing control, is characterized in that, it comprises:
Multiple battery modules, those battery modules are connected in parallel to each other, and export multiple output current respectively, and those battery modules export multiple current status signal respectively according to the magnitude of current of those output currents; And
One master controller, couples those battery modules, and according to those current status signals, and export multiple sharing control order respectively to those battery modules;
Wherein, those battery modules respectively according to those sharing control orders, and adjust the magnitude of current of those output currents exported.
2. electric supply installation as claimed in claim 1, it is characterized in that, it more comprises:
One bus, in order to couple those battery modules by this master controller.
3. electric supply installation as claimed in claim 1, it is characterized in that, wherein those battery modules comprise respectively:
One battery unit, for providing this output current;
One current sense unit, couples this battery unit, and detects the magnitude of current of this output current, and exports a detection signal;
One control unit, couple this current sense unit, and exporting this current status signal according to this detection signal, this master controller returns this sharing control order to this control unit according to this current status signal, makes this control unit export a conducting according to this sharing control order and controls signal; And
One first switch element, couples this battery unit and this control unit, and controls according to this conducting the conducting degree that signal determines this first switch element, and this conducting degree determines the magnitude of current flowing through this output current of this first switch element.
4. electric supply installation as claimed in claim 3, it is characterized in that, wherein when the magnitude of current of this output current that this battery unit exports is more higher than a fiducial value, this control unit controls the conducting degree of this first switch element to less by this conducting controls signal, when the magnitude of current of this output current that this battery unit exports is more lower than this fiducial value, this control unit controls the conducting degree of this first switch element to larger by this conducting controls signal.
5. electric supply installation as claimed in claim 3, it is characterized in that, wherein this control unit comprises:
One analog-digital converter, couples this current sense unit, and exports after this detection signal is converted to a digital signal;
One logical circuit, couples this analog-digital converter, and judges that whether the magnitude of current of this output current is higher or lower than a fiducial value according to this digital signal, and corresponding this current status signal of output; And
One digital analog converter, couples this master controller, and exports after this sharing control order being converted to this conducting control signal.
6. electric supply installation as claimed in claim 5, it is characterized in that, wherein this first switch element is a power transistor, one gate of this power transistor couples this digital analog converter, and this output current flows through a drain and the one source pole of this power transistor, this gate of this power transistor receives this conducting and controls signal, and controls signal to operate in linear zone according to this conducting, and controls this conducting degree between this drain of power transistor and this source electrode.
7. electric supply installation as claimed in claim 3, it is characterized in that, wherein this battery modules more comprises:
One second switch unit, couples this battery unit and this control unit, and is controlled by this control unit and conducting or end this output current.
8. a battery modules for the electric supply installation of sharing control, is characterized in that, it comprises:
One battery unit, for providing an output current;
One current sense unit, couples this battery unit, and detects the magnitude of current of this output current, and exports a detection signal;
One control unit, couple this current sense unit, and exporting current status signal to master controller according to this detection signal, this master controller returns a sharing control order to this control unit according to this current status signal, makes this control unit export a conducting and controls signal; And
One first switch element, couples this battery unit and this control unit, and controls according to this conducting the conducting degree that signal determines this first switch element, and this conducting degree determines the magnitude of current flowing through this output current of this first switch element.
9. a method of supplying power to for sharing control, is characterized in that, its step comprises:
Multiple battery modules is connected in parallel to each other, and exports multiple output current respectively;
Respectively according to the magnitude of current of those output currents, and export multiple current status signal;
One master controller is coupled those battery modules, and according to those current status signals, and export multiple sharing control order respectively to those battery modules; And
Respectively according to those sharing control orders, and adjust the magnitude of current of those output currents exported.
10. method of supplying power to as claimed in claim 9, it is characterized in that, wherein those battery modules detect the magnitude of current of this exported output current respectively, and judge that whether the magnitude of current of this output current is higher or lower than a fiducial value, and corresponding this current status signal of output.
11. method of supplying power to as claimed in claim 10, it is characterized in that, wherein when this battery modules judges the magnitude of current of this output current higher than this fiducial value, this current status signal that this master controller exports according to this battery modules and return this sharing control order, makes this battery modules turn down the magnitude of current of this output current.
12. method of supplying power to as claimed in claim 10, it is characterized in that, wherein when this battery modules judges the magnitude of current of this output current lower than this fiducial value, this current status signal that this master controller exports according to this battery modules and return this sharing control order, makes this battery modules heighten the magnitude of current of this output current.
13. method of supplying power to as claimed in claim 10, is characterized in that, wherein this master controller exports those sharing control orders to those battery modules, adjust the magnitude of current of those output currents to this fiducial value to control those battery modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310661980.5A CN104701913A (en) | 2013-12-09 | 2013-12-09 | Power supply device with current equalization function and battery module thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310661980.5A CN104701913A (en) | 2013-12-09 | 2013-12-09 | Power supply device with current equalization function and battery module thereof |
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| Publication Number | Publication Date |
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| CN104701913A true CN104701913A (en) | 2015-06-10 |
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| CN201310661980.5A Pending CN104701913A (en) | 2013-12-09 | 2013-12-09 | Power supply device with current equalization function and battery module thereof |
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| Country | Link |
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| CN (1) | CN104701913A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786953A (en) * | 2017-01-06 | 2017-05-31 | 李锐 | Batteries in parallel connection group equalizing system and its method |
| WO2018068278A1 (en) * | 2016-10-13 | 2018-04-19 | 深圳易马达科技有限公司 | Power connection device and power control system |
-
2013
- 2013-12-09 CN CN201310661980.5A patent/CN104701913A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018068278A1 (en) * | 2016-10-13 | 2018-04-19 | 深圳易马达科技有限公司 | Power connection device and power control system |
| CN106786953A (en) * | 2017-01-06 | 2017-05-31 | 李锐 | Batteries in parallel connection group equalizing system and its method |
| CN106786953B (en) * | 2017-01-06 | 2019-03-26 | 重庆雅讯电源技术有限公司 | Batteries in parallel connection group equilibrium system and method |
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Application publication date: 20150610 |