CN107887956A - It is a kind of to avoid battery from crossing the protection circuit put and battery supply set - Google Patents
It is a kind of to avoid battery from crossing the protection circuit put and battery supply set Download PDFInfo
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- CN107887956A CN107887956A CN201711367991.7A CN201711367991A CN107887956A CN 107887956 A CN107887956 A CN 107887956A CN 201711367991 A CN201711367991 A CN 201711367991A CN 107887956 A CN107887956 A CN 107887956A
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- crossing
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- 238000001514 detection method Methods 0.000 claims abstract description 55
- 238000007689 inspection Methods 0.000 claims abstract description 15
- 230000005611 electricity Effects 0.000 claims description 16
- 239000002253 acid Substances 0.000 claims description 8
- 238000011084 recovery Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000007812 deficiency Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010010741 Conjunctivitis Diseases 0.000 description 1
- 208000020061 Hand, Foot and Mouth Disease Diseases 0.000 description 1
- 208000025713 Hand-foot-and-mouth disease Diseases 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- MXEJFXMHLHQKRP-UHFFFAOYSA-N [O--].[O--].[Ti+4].[Pb++] Chemical group [O--].[O--].[Ti+4].[Pb++] MXEJFXMHLHQKRP-UHFFFAOYSA-N 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical group [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004065 semiconductor Substances 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect 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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- 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
Battery is avoided to cross the protection circuit put and battery supply set the invention discloses a kind of, including：First detection circuit and the second detection circuit, the first detection circuit and the second detection circuit electrically connect with the battery respectively；The first detection electric circuit inspection detects the cell voltage, and the operating circuit that the battery powers to the load is turned off when the cell voltage is less than the first preset value to after battery discharge；The second detection electric circuit inspection starts to load, detects the cell voltage, and controls the first detection circuit to turn off the operating circuit when the cell voltage is less than the second preset value；The present invention's avoids battery from crossing the protection circuit put; when cell voltage is less than the first preset value; automatically shut down operating circuit; avoid battery from crossing to put; and although cell voltage can be avoided insufficient because under Light Condition, voltage recovery and starting load when being more than the first preset value; battery is further lost, more effectively avoids battery from crossing and puts.
Description
Technical field
The present invention relates to battery supply set field, and in particular to a kind of to avoid battery from crossing the protection circuit put and battery confession
Electric equipment.
Background technology
At present, in general kindergarten carries out morning inspection all before student enters garden, and morning is examined mostly by hand inspection, such as passes through meat
Eye observation determines whether conjunctivitis, hand-foot-and-mouth disease, and touching forehead by hand judges whether fever etc., but such mode has inspection
Survey efficiency is low, detection method not science, testing result can not complete documentation the problems such as.
Therefore, occurred a kind of automatic morning inspection equipment currently on the market.Used for the ease of mobile, be applicable more occasions,
Automatic morning inspection equipment is provided with lead-acid accumulator, and charging once, can use several days.But user usually forgets to fill in time
Electricity, the serious overdischarge of battery is caused, for lead-acid accumulator, largely effects on battery life, in some instances it may even be possible to directly damaged.
The content of the invention
In view of this, avoid that battery crosses the protection circuit put and battery powered is set it is an object of the invention to provide a kind of
It is standby, battery over-discharge is avoided that, extends battery.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
Battery is avoided to cross the protection circuit put the invention provides a kind of, the protection circuit includes：First detection circuit
With the second detection circuit, the first detection circuit and the second detection circuit electrically connect with the battery respectively；
The first detection electric circuit inspection detects the cell voltage to after battery discharge, and low in the cell voltage
The operating circuit that the battery powers to the load is turned off when the first preset value；
The second detection electric circuit inspection starts to load, detects the cell voltage, and be less than in the cell voltage
The first detection circuit is controlled to turn off the operating circuit during the second preset value.
In such scheme, the protection circuit also includes first switch, and the first switch does not obtain the first conducting voltage
When turn off the operating circuit.
In such scheme, the first detection circuit includes the first mu balanced circuit and the first comparing unit；Described first is steady
The voltage of volt circuit is the first preset value, and first comparing unit is electric by the current voltage of the battery and the first mu balanced circuit
Pressure is compared and determines the height relation between the cell voltage and first preset value.
In such scheme, first comparing unit includes first input end, the second input and the first output end；It is described
First input end and the second input obtain the voltage of the battery and the voltage of the first mu balanced circuit, first output respectively
End connects the first switch；When the voltage that the first input end obtains is less than the voltage that second input obtains,
The first output end Non voltage output is to the first switch.
In such scheme, the first detection circuit also includes the first bleeder circuit, and the first input end is according to
First bleeder circuit obtains the voltage that the battery presets dividing ratios, first preset value and the default dividing ratios phase
Adapt to.
In such scheme, the protection circuit also includes second switch, and the second switch does not obtain when loading and starting
First mu balanced circuit is turned off during the second conducting voltage, causes second input to obtain and is more than or equal to the specified electricity of battery
The voltage of pressure.
In such scheme, the second detection circuit includes the second mu balanced circuit and the second comparing unit, and described second is steady
The voltage of volt circuit is the second preset value, and second comparing unit is electric by the current voltage of the battery and the second mu balanced circuit
Pressure is compared and determines the height relation between the cell voltage and second preset value.
In such scheme, second comparing unit includes the 3rd input, the 4th input and the second output end；It is described
3rd input and the 4th input obtain the voltage of the battery and the voltage of the second mu balanced circuit, second output respectively
End connects the second switch；When the voltage that the 3rd input obtains is less than the voltage that the 4th input obtains,
The second output end Non voltage output is to the second switch.
In such scheme, the second detection circuit also includes the second bleeder circuit, and the 3rd input is according to second
Bleeder circuit obtains the voltage that the battery presets dividing ratios, and second preset value is mutually fitted with the default dividing ratios
Should.
Present invention also offers a kind of battery supply set, the battery supply set includes battery, load, connection battery
With the operating circuit of load and it is recited above any one avoid battery from crossing the protection circuit put.
In such scheme, the battery is lead-acid accumulator.
The present invention's avoids battery from crossing the protection circuit put and battery supply set, including：First detection circuit and second
Circuit is detected, the first detection circuit and the second detection circuit electrically connect with the battery respectively；First detection
Electric circuit inspection detects the cell voltage, and turn off institute when the cell voltage is less than the first preset value to after battery discharge
State the operating circuit that battery powers to the load；The second detection electric circuit inspection starts to load, detects the cell voltage, and
The first detection circuit is controlled to turn off the operating circuit when the cell voltage is less than the second preset value；So, electricity is worked as
When cell voltage is less than the first preset value, operating circuit is automatically shut down, avoids battery from crossing and puts, although and cell voltage can be avoided
Deficiency, but because under Light Condition, voltage recovery and starting load when being more than the first preset value are further lost battery, more had
Effect avoids battery from crossing putting.
Other beneficial effects of the present invention will combine concrete technical scheme in a specific embodiment and further illustrate.
Brief description of the drawings
Fig. 1 is that the embodiment of the present invention one avoids battery from crossing the principle schematic of the protection circuit put；
Fig. 2 is that the embodiment of the present invention two avoids battery from crossing the principle schematic of the protection circuit put；
Fig. 3-1 be the embodiment of the present invention two avoid battery cross the protection circuit put actual track figure left-half first
Schematic diagram；
Fig. 3-2 be the embodiment of the present invention two avoid battery cross the protection circuit put actual track figure right half part second
Schematic diagram.
Embodiment
Battery is avoided to cross the protection circuit put and battery supply set the invention provides a kind of, including：First detection electricity
Road and the second detection circuit, the first detection circuit and the second detection circuit electrically connect with the battery respectively；It is described
First detection electric circuit inspection detects the cell voltage, and be less than the first preset value in the cell voltage to after battery discharge
When turn off the operating circuit that the battery powers to the load；The second detection electric circuit inspection starts to load, detects the electricity
Cell voltage, and control the first detection circuit to turn off the operating circuit when the cell voltage is less than the second preset value.
The beneficial effects of the invention are as follows：When cell voltage is less than the first preset value, operating circuit is automatically shut down, avoids electricity
Pond, which is crossed, puts, although and cell voltage can be avoided insufficient because under Light Condition, voltage recovery and be more than the first preset value
When starting load, battery is further lost, more effectively avoids battery from crossing and puts.
In order to more understand the features of the present invention and technology contents in detail, below in conjunction with specific Application Example
And realization of the accompanying drawing to the present invention is described in detail, appended accompanying drawing purposes of discussion only for reference, not it is used for limiting the present invention.
Embodiment one
Fig. 1 is that the embodiment of the present invention one avoids battery from crossing the principle schematic of the protection circuit put, as shown in figure 1, described
Avoiding battery from crossing the protection circuit put includes battery 11, load 12, the detection of first switch 13, first circuit 14, second switch 15
With the second detection circuit 16；
Wherein, connected between the battery 11 and load 12 by operating circuit, the first switch 13 is arranged on work
In circuit, the break-make of the operating circuit is controlled, that is, controls the battery 11 to the break-make of the power supply of load 12.Described first
Switch 13 can just be remained closed, otherwise disconnected only when obtaining the first conducting voltage.
Specifically, in the discharge process of battery 11, when the described first detection circuit 14 detects that the voltage of battery 11 is low
After the first preset value, the first conducting voltage no longer is exported to the first switch 13, the first switch 13 disconnects, work electricity
Road disconnects, and the battery 11 stops, to the power supply of load 12, avoiding the mistake of battery 11 from putting.
Further, although to avoid the undertension of battery 11 because under Light Condition, voltage recovery and more than first
Starting load 12 during preset value, are further lost battery 11, and the embodiment of the present invention is additionally provided with second switch 15；Described second opens
Close 15 and only obtain the second conducting voltage when loading 12 startup, can just close, otherwise disconnect；
Specifically, when loading 12 startup, the second detection circuit 16 detects that the voltage of battery 11 is less than second
After preset value, the second conducting voltage is not exported to the second switch 15, the second switch 15 disconnects, the first detection electricity
Road 14 can not start detection, i.e., export the first conducting voltage without first switch described in normal direction 13, and load 12 can not start, that is, reach
Load 12 is again started up in the case of protection undertension；Here, it is again started up, institute in order to avoid voltage recovery during zero load
State the second preset value and have to be larger than the first preset value.
Embodiment two
Fig. 2 is that the embodiment of the present invention two avoids battery from crossing the principle schematic of the protection circuit put, as shown in Fig. 2 described
Avoiding battery from crossing the protection circuit put includes battery 11, load 12, the detection of first switch 13, first circuit, the and of second switch 15
Second detection circuit；
Wherein, connected between the battery 11 and load 12 by operating circuit, the first switch 13 is arranged on work
In circuit, the break-make of the operating circuit is controlled, that is, controls the battery 11 to the break-make of the power supply of load 12.Described first
Switch 13 can just be remained closed, otherwise disconnected only when obtaining the first conducting voltage；
The first detection circuit includes the first comparing unit 141 and produces the first mu balanced circuit of the first default threshold voltage
142；First comparing unit 141 includes obtaining the first input end of the voltage of battery 11, obtains the first mu balanced circuit electricity
Pressure the second input and when the first input end voltage does not export the first conducting voltage less than second input terminal voltage
The first output end to the first switch.
Specifically, in the discharge process of battery 11, when the first input end voltage is less than second input terminal voltage,
First output end no longer exports the first conducting voltage to the first switch, and the first switch disconnects, and operating circuit disconnects, institute
Battery 11 is stated to stop, to the power supply of load 12, avoiding the mistake of battery 11 from putting.
Further, although to avoid the undertension of battery 11 because under Light Condition, voltage recovery and more than first
Starting load 12 during preset value, are further lost battery 11, and the embodiment of the present invention is additionally provided with second switch 15；Described second opens
Close and only obtain the second conducting voltage when loading 12 startup, can just close, otherwise disconnect；
The second detection circuit includes the second comparing unit 161 and produces the second mu balanced circuit of the second default threshold voltage
162；Second comparing unit 161 includes obtaining the 3rd input of the voltage of battery 11, obtains the second mu balanced circuit electricity
Pressure the 4th input and when the 3rd input terminal voltage does not export the second conducting voltage to institute less than the 4th input
State the second output end of second switch.
Specifically, when loading 12 and starting, when the 3rd input terminal voltage is less than the 4th input, described second
Output end does not export the second conducting voltage to the second switch, and the second switch disconnects, and the first detection circuit can not
Start detection, i.e., export the first conducting voltage without first switch described in normal direction, load 12 can not start, that is, reach protection voltage
Load 12 is again started up in the case of deficiency；Here, it is again started up in order to avoid voltage recovery during zero load, described second is default
Value have to be larger than the first preset value.
Fig. 3-1 be the embodiment of the present invention two avoid battery cross the protection circuit put actual track figure left-half first
Schematic diagram, Fig. 3-2 be the embodiment of the present invention two avoid battery cross the protection circuit put actual track figure right half part second
Schematic diagram (because line map breadth is larger, is divided into the placements of page two, left-half is Fig. 3-1, and right half part is Fig. 3-2), such as schemes
Shown in 3-1,3-2, described to avoid battery from crossing the protection circuit put including operating circuit 21 and comparator 22, the comparator 22 wraps
Two comparison loops are included, are A loops and B loops respectively, the first comparing unit 141 in B loops corresponding diagram 2, A loops pair
Answer the second comparing unit 161 in Fig. 2；
The B loops include " INB+ ", " INB- " and " OUTB ", respectively the first input end in corresponding diagram 2, the second input
End and the first output end, " INB+ " is connected to battery (Fig. 3 is not shown) by three divider resistances R522, R523, R526, obtains
The voltage assigned to according to the first dividing ratios, " INB- " are connected to the first mu balanced circuit, obtain the first default threshold voltage, and described the
One mu balanced circuit includes voltage-regulator diode D503, when " INB+ " input voltage is more than described " INB- " input voltage,
" OUTB " exports the first conducting voltage and connected to the first switch, the first switch closure, operating circuit 21；When described
" INB+ " input voltage is less than described " INB- " input voltage, and " OUTB " is not exported, the first switch shut-off, operating circuit
21 disconnect, i.e., described battery stops powering to the load, and avoids the mistake of battery from putting；The first switch is by two MOS (metal
Oxide semiconductor) pipe composition, its operation principle is unrelated with this patent, is not described；
Described first default threshold voltage is adapted with first dividing ratios, if the ratio that the first default threshold voltage is set
Relatively low, the first dividing ratios are also required to the smaller of setting, so relatively just more significant.
The A loops include " INA+ ", " INA- " and " OUTA ", respectively the 3rd input in corresponding diagram 2, the 4th input
End and the second output end, " INA+ " is connected to battery by two divider resistances R515, R516, obtained according to the second dividing ratios
The voltage assigned to, " INA- " are connected to the second mu balanced circuit, obtain the second default threshold voltage, second mu balanced circuit includes steady
Diode D505 is pressed, when " INA+ " input voltage is more than described " INA- " input voltage, " OUTA " exports the second electric conduction
Press and connected to the second switch, the second switch closure, the first mu balanced circuit, the normal work in A loops of the comparator 22
Make；When " INA+ " input voltage is less than described " INA- " input voltage, " OUTA " is not exported, and the first switch is closed
Disconnected, the first mu balanced circuit disconnects, and INB- " is connected to battery, obtains current battery level, but because " INB+ " passes through partial pressure electricity
Resistance is connected to battery, obtains the portion voltage of battery, therefore necessarily causes INB+ " input voltages to be less than " INB- " input electricity
Pressure, OUTB " are not exported, and the first switch shut-off, operating circuit 21 disconnects, and load can not start, that is, has reached protection electricity
What is loaded in the case of pressure deficiency is again started up；
Described second default threshold voltage is adapted with second dividing ratios, if the ratio that the second default threshold voltage is set
Relatively low, the second dividing ratios are also required to the smaller of setting, so relatively just more significant.
Here, it is again started up in order to avoid voltage recovery during zero load, it is default that second preset value have to be larger than first
Value.
The second switch is triode Q502, NPN type triode, when battery supply set normally starts, i.e. battery
Voltage is more than the second preset value, i.e., described " INA+ " input voltage is more than described " INA- " input voltage, " OUTA " output second
Conducting voltage, the voltage of second conducting voltage are more than triode Q502 conducting voltage, and colelctor electrode C connects with emitter E,
That is the first mu balanced circuit is connected, and " OUTB " exports the first conducting voltage to the first switch, the first switch closure, work
Circuit 21 is connected, and battery supply set can not start；When " OUTA " non-output voltage, colelctor electrode C does not connect with emitter E,
That is the first mu balanced circuit disconnects, and battery supply set can not start；
Specifically, after triode Q502 conductings, the first mu balanced circuit and the first bleeder circuit are both turned on, due to described second
Preset value have to be larger than the first preset value, so " INB+ " input voltage is naturally larger than described " INB- " input voltage, this
Sample, " OUTB " export the first conducting voltage, and first conducting voltage by voltage-regulator diode D508 except being exported to described the
One switch is outer, is also exported to the triode Q502, colelctor electrode C by diode D504 and is connected with emitter E, so, described
Triode Q502 break-make is by the output control of " OUTB ", and the output of " OUTA " is not related, i.e., described cell voltage is less than
First preset value, the first switch can disconnect, and higher than the first preset value but be less than the second preset value in the cell voltage,
The second switch will not disconnect；I.e. the A loops of comparator 22 only play a role when battery supply set starts, and are put in battery
Do not worked in electric process；And the B loops of comparator 22 all play a role in discharge process and startup.
It is again started up in order to avoid voltage recovery during zero load, the present embodiment is specifically configured to：By the first mu balanced circuit
It is arranged to consistent with the voltage of the second mu balanced circuit, and the first dividing ratios are more than the second dividing ratios, that is, need " INA+ "
Input voltage is higher, " OUTA " just can output voltage, in this Fig. 3, battery rated voltage is 24V, the input voltage of " INA+ "
23V is necessarily be greater than, " OUTA " just understands output voltage, and the input voltage of " INB+ " need to only be higher than 21.5V, and " OUTB " is i.e. exportable
Voltage, i.e., in battery discharge procedure, cell voltage is less than 21.5V, and operating circuit can be turned off, after shut-off, during restarting,
Cell voltage have to be larger than 23V, could start, that is, can be just again started up after ensuring user's charging stipulated time.
Embodiment three
The embodiment of the present invention additionally provides a kind of battery supply set, and the battery supply set includes battery, load, company
Connect the operating circuit of battery and load and avoid battery from crossing the protection circuit put.
Annexation between the composition structure for avoiding battery from crossing the protection circuit put, each part and each
The principle of work and power of part with it is recited above any one to avoid battery from crossing the protection circuit structure put identical, it is no longer superfluous
State.
Specifically, the battery is lead-acid accumulator (Lead-acid battery).Lead-acid accumulator be electrode mainly by
Lead and its oxide are made, and electrolyte is a kind of battery of sulfuric acid solution.Under discharge condition, positive pole main component is titanium dioxide
Lead, negative pole main component are lead；Under charged state, the main component of both positive and negative polarity is lead sulfate.Compared to other batteries, cross and put
Injury to lead-acid accumulator is bigger, crosses and puts the meeting strong influence life of storage battery, or even directly damages.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention, it is all
All any modification, equivalent and improvement made within the spirit and principles in the present invention etc., it should be included in the protection of the present invention
Within the scope of.
Claims (11)
1. a kind of avoid battery from crossing the protection circuit put, it is characterised in that the protection circuit includes：First detection circuit and the
Two detection circuits, the first detection circuit and the second detection circuit electrically connect with the battery respectively；
The first detection electric circuit inspection is to after battery discharge, detecting the cell voltage, and in the cell voltage less than the
The operating circuit that the battery powers to the load is turned off during one preset value；
The second detection electric circuit inspection starts to load, detects the cell voltage, and be less than second in the cell voltage
The first detection circuit is controlled to turn off the operating circuit during preset value.
2. according to claim 1 avoid battery from crossing the protection circuit put, it is characterised in that the protection circuit also includes
First switch, the first switch turn off the operating circuit when not obtaining the first conducting voltage.
3. according to claim 2 avoid battery from crossing the protection circuit put, it is characterised in that the first detection circuit bag
Include the first mu balanced circuit and the first comparing unit；The voltage of first mu balanced circuit is the first preset value, and described first compares
Part determines compared with the first mu balanced circuit voltage the current voltage of the battery cell voltage and described the
Height relation between one preset value.
4. according to claim 3 avoid battery from crossing the protection circuit put, it is characterised in that the first comparing unit bag
Include first input end, the second input and the first output end；The first input end and the second input obtain the electricity respectively
The voltage of the voltage in pond and the first mu balanced circuit, first output end connect the first switch；When the first input end
When the voltage of acquisition is less than the voltage that second input obtains, the first output end Non voltage output to described first is opened
Close.
5. according to claim 4 avoid battery from crossing the protection circuit put, it is characterised in that the first detection circuit is also
Including the first bleeder circuit, the first input end obtains the battery according to first bleeder circuit and presets dividing ratios
Voltage, first preset value are adapted with the default dividing ratios.
6. according to claim 5 avoid battery from crossing the protection circuit put, it is characterised in that the protection circuit also includes
Second switch, the second switch turn off first mu balanced circuit when not obtaining the second conducting voltage when loading and starting, caused
Second input is set to obtain the voltage more than or equal to battery rated voltage.
7. according to claim 6 avoid battery from crossing the protection circuit put, it is characterised in that the second detection circuit bag
The second mu balanced circuit and the second comparing unit are included, the voltage of second mu balanced circuit is the second preset value, and described second compares
Part determines compared with the second mu balanced circuit voltage the current voltage of the battery cell voltage and described the
Height relation between two preset values.
8. according to claim 7 avoid battery from crossing the protection circuit put, it is characterised in that the second comparing unit bag
Include the 3rd input, the 4th input and the second output end；3rd input and the 4th input obtain the electricity respectively
The voltage of the voltage in pond and the second mu balanced circuit, second output end connect the second switch；When the 3rd input
When the voltage of acquisition is less than the voltage that the 4th input obtains, the second output end Non voltage output to described second is opened
Close.
9. according to claim 8 avoid battery from crossing the protection circuit put, it is characterised in that the second detection circuit is also
Including the second bleeder circuit, the 3rd input obtains the electricity of the default dividing ratios of the battery according to the second bleeder circuit
Pressure, second preset value are adapted with the default dividing ratios.
10. a kind of battery supply set, it is characterised in that the battery supply set includes battery, load, connection battery with bearing
Battery is avoided to cross the protection circuit put described in operating circuit and claim 1~9 any one of load.
11. battery supply set according to claim 10, it is characterised in that the battery is lead-acid accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367991.7A CN107887956A (en) | 2017-12-18 | 2017-12-18 | It is a kind of to avoid battery from crossing the protection circuit put and battery supply set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367991.7A CN107887956A (en) | 2017-12-18 | 2017-12-18 | It is a kind of to avoid battery from crossing the protection circuit put and battery supply set |
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| CN107887956A true CN107887956A (en) | 2018-04-06 |
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| CN201711367991.7A Pending CN107887956A (en) | 2017-12-18 | 2017-12-18 | It is a kind of to avoid battery from crossing the protection circuit put and battery supply set |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683217A (en) * | 2018-04-08 | 2018-10-19 | 中国船舶重工集团公司第七〇九研究所 | The supply voltage monitoring circuit that can be turned off |
| CN111293755A (en) * | 2020-03-20 | 2020-06-16 | 烟台艾睿光电科技有限公司 | Protection circuit for equalizing discharge of parallel battery pack and chargeable device |
| CN116761296A (en) * | 2023-08-16 | 2023-09-15 | 菏泽学院 | Solar street lamp controller for adjusting brightness of LED (light-emitting diode) based on time and battery voltage |
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| US6340880B1 (en) * | 1999-11-11 | 2002-01-22 | Mitsumi Electric Co., Ltd. | Method of protecting a chargeable electric cell |
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| CN207801505U (en) * | 2017-12-18 | 2018-08-31 | 苏州沃柯雷克智能系统有限公司 | It is a kind of that battery is avoided to cross the protection circuit and battery supply set put |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108683217A (en) * | 2018-04-08 | 2018-10-19 | 中国船舶重工集团公司第七〇九研究所 | The supply voltage monitoring circuit that can be turned off |
| CN108683217B (en) * | 2018-04-08 | 2021-08-03 | 中国船舶重工集团公司第七一九研究所 | Power supply voltage monitoring circuit capable of being turned off |
| CN111293755A (en) * | 2020-03-20 | 2020-06-16 | 烟台艾睿光电科技有限公司 | Protection circuit for equalizing discharge of parallel battery pack and chargeable device |
| CN111293755B (en) * | 2020-03-20 | 2021-11-16 | 烟台艾睿光电科技有限公司 | Protection circuit for equalizing discharge of parallel battery pack and chargeable device |
| CN116761296A (en) * | 2023-08-16 | 2023-09-15 | 菏泽学院 | Solar street lamp controller for adjusting brightness of LED (light-emitting diode) based on time and battery voltage |
| CN116761296B (en) * | 2023-08-16 | 2023-11-03 | 菏泽学院 | Solar street lamp controller for adjusting brightness of LED (light-emitting diode) based on time and battery voltage |
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