CN207098667U - Battery multi-source charge protector - Google Patents
Battery multi-source charge protector Download PDFInfo
- Publication number
- CN207098667U CN207098667U CN201720791081.0U CN201720791081U CN207098667U CN 207098667 U CN207098667 U CN 207098667U CN 201720791081 U CN201720791081 U CN 201720791081U CN 207098667 U CN207098667 U CN 207098667U
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- lithium battery
- battery group
- charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001012 protector Effects 0.000 title claims abstract description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 174
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 174
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 230000000052 comparative effect Effects 0.000 claims description 27
- 230000005611 electricity Effects 0.000 claims description 27
- 230000006698 induction Effects 0.000 claims description 20
- 230000033228 biological regulation Effects 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 4
- 239000004065 semiconductor Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 7
- 239000003381 stabilizer Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model embodiment is related to a kind of battery multi-source charge protector; when the residual voltage of lithium battery group is less than the first critical voltage; it is set to be located to lithium battery group transmission amplitude the electric current in the first current amplitude by controlling switch circuit; when the residual voltage of lithium battery group rises above the first critical voltage; controlling switch circuit makes it be more than the electric current of the first current amplitude to lithium battery group transmission amplitude; until the voltage of lithium battery group reaches full piezoelectric voltage, i.e. controlling switch circuit disconnects the electrical connection of lithium battery group and charging circuit；The utility model can effectively reduce the destruction to the internal structure of lithium battery group, and when lithium battery group obtains full piezoelectric voltage, disconnect the electrical connection of lithium battery group and charging circuit, can reduce lithium battery group and fill quick-fried accident.
Description
Technical field
Cell charge protection technical field is the utility model is related to, more specifically, it relates to which a kind of battery multi-source charges
Protection circuit.
Background technology
For lithium battery because it is bigger than energy, self-discharge rate is low, has extended cycle life, it is allowed to and operating temperature range is wide, pollution-free, with
And small volume, it is in light weight the advantages that, turn into the main flow battery used instantly.
But lithium battery is placed or in the case of some overdischarge prolonged, it may appear that is stored in lithium battery
Residual voltage less than lithium battery critical charging voltage situation.Here the critical charging voltage of lithium battery refers to lithium electricity
The residual voltage in pond is equal to 2.1 volts less than some fixation lower voltage limit value, such as fixed value.
When the residual voltage of lithium battery is dropped to below critical charging voltage, conventional charging facility is directly used, i.e.,
Using the larger electric current of amplitude to lithium cell charging, it is easy to the internal structure of lithium battery is damaged, under serious situation
Lithium battery can be made can not to recover normal work, so as to shorten the service life of lithium battery.
It has been investigated that when the residual voltage of lithium battery is less than critical charging voltage, using trickle to lithium cell charging,
Can be lithium cell charging to normal working voltage.
Utility model content
In order to solve the above technical problems, the purpose of the utility model embodiment is the provision of a kind of battery multi-source charger
Protection circuit, when the residual voltage of lithium battery group is less than the first critical voltage, controlling switch circuit makes it transmit trickle to lithium electricity
Pond group charging, reduces the destruction to the internal structure of lithium battery group.
To realize above-mentioned technical purpose, the utility model embodiment first aspect provides a kind of battery multi-source charge protection
Circuit, including：
Lithium battery group, at least it is made up of a section lithium battery, and is electrically connected to load circuit to be provided to the load circuit
Operating voltage；
Charging circuit, the lithium battery group is electrically connected to the lithium battery group input charging voltage；
On-off circuit, it is electrically connected between the lithium battery group and the charging circuit with lithium battery described on or off
Group and the electrical connection of the charging circuit；
Charging control circuit, be electrically connected to the lithium battery group to obtain the residual voltage of the lithium battery group, and by its
Compared with the first preset critical voltage；
When the residual voltage is less than first critical voltage, the charging control circuit output is described to control
On-off circuit transmission amplitude is located at the pwm control signal of the electric current in the first current amplitude；
When the residual voltage is higher than first critical voltage, the charging control circuit output is described to control
On-off circuit transmission amplitude is more than the first control signal of the electric current of the first current amplitude, until the residual voltage obtained reaches
To the full piezoelectric voltage of the lithium battery group.
Based on the utility model embodiment in a first aspect, the first of the utility model embodiment first aspect may be realized
In mode, the charging control circuit includes：
First compares sub-circuit, is electrically connected to the lithium battery group to obtain the residual voltage of the lithium battery group, and will
Compared with preset first critical voltage, output represents the first comparison signal of comparative result for it；
First control sub-circuit, is electrically connected to described first and compares sub-circuit to receive first comparison signal, and
When first comparison signal represents that the residual voltage is less than the comparative result of first critical voltage, export to control
The on-off circuit transmission amplitude is located at the pwm control signal of the electric current in the first current amplitude；
When first comparison signal represents that the residual voltage is higher than first critical voltage, the charge control
Circuit output to control the on-off circuit transmission amplitude be more than the first current amplitude electric current the first control signal, until
The residual voltage obtained reaches the full piezoelectric voltage of the lithium battery group.
May be real based on the first of the utility model embodiment first aspect or the utility model embodiment first aspect
Existing mode, second of the utility model embodiment first aspect may be in implementation, the battery multi-source charge protection electricity
Road also includes：
First mu balanced circuit, it is electrically connected between the lithium battery group and the charging control circuit and is used for from lithium electricity
The stable operating voltage of charging control circuit transmission described in Chi Zuxiang.
Second of implementation based on the utility model embodiment first aspect, the utility model embodiment first aspect
The third possible implementation in, the battery multi-source charge protector also includes：
Selection circuit, it is electrically connected between the charging circuit and first mu balanced circuit, and the lithium battery group
Between first mu balanced circuit, the electrical connection of the charging circuit and first mu balanced circuit and the lithium battery are turned on
Organize wherein one with the electrical connection of first mu balanced circuit.
Based on the utility model embodiment in a first aspect, the 4th kind of the utility model embodiment first aspect may realize
In mode, the charging circuit can be the combination of solar power supply circuit or mains-supplied circuit or both.
The 4th kind of possible implementation based on the utility model embodiment first aspect, the utility model embodiment first
In 5th kind of possible implementation of aspect, when the charging circuit includes solar power supply circuit, the charge control
Circuit also includes：
Second compares sub-circuit, is electrically connected to the solar power supply circuit to obtain the electricity of the solar power supply circuit
Pressure, and by it compared with the second preset critical voltage, output represents the second comparison signal of comparative result；
Second control sub-circuit, is electrically connected to described second and compares sub-circuit to receive second comparison signal, and
The voltage of the solar power supply circuit of the comparative result that second comparison signal represents to obtain faces less than described second
During boundary's voltage, the second control signal of output control load circuit works；
It is higher than in the voltage of the solar power supply circuit of the comparative result that second comparison signal represents to obtain
During second critical voltage, the 3rd control signal that output control load circuit is stopped.
The 5th kind of possible implementation based on the utility model embodiment first aspect, the utility model embodiment first
In 6th kind of possible implementation of aspect, the battery multi-source charge protector also includes：
Body induction circuit, for human-induced signal to be converted into induced voltage and inputted to charge control electricity
Road；
The charging control circuit includes：
3rd compares sub-circuit, is electrically connected to the body induction circuit to receive the induced voltage, and by its with it is pre-
The 3rd critical voltage put compares, and output represents the 3rd comparison signal of comparative result；
Judge sub-circuit, while be electrically connected to described second and compare sub-circuit and the described 3rd and compare sub-circuit, and same
When receive the of voltage less than the comparative result of second critical voltage of the solar power supply circuit for representing to obtain
Two comparison signals, and represent threeth comparison signal of the induced voltage higher than the comparative result of the 3rd critical voltage
When, output makes the judgement signal of the second control signal of the second control sub-circuit output control load circuit works.
The 6th kind of possible implementation based on the utility model embodiment first aspect, the utility model embodiment first
In 7th kind of possible implementation of aspect, the charging control circuit reaches institute in the residual voltage for obtaining the lithium battery group
When stating the full piezoelectric voltage of lithium battery group, export to control the on-off circuit to disconnect the lithium battery group and the charging circuit
Electrical connection the 4th control signal.
The 7th kind of possible implementation based on the utility model embodiment first aspect, the utility model embodiment first
In 8th kind of possible implementation of aspect, the charging control circuit is with defeated with second for inputting the induced voltage
Enter pin；For the 3rd input pin of the voltage for inputting the solar power supply circuit obtained；For inputting the lithium battery obtained
4th input pin of the residual voltage of group；For exporting the pwm control signal or first control signal or the described 4th
6th output pin of control signal；And for exporting the 7th output of second control signal or the 3rd control signal
The integrated chip of pin is core.
The 8th kind of possible implementation based on the utility model embodiment first aspect, the utility model embodiment first
In 9th kind of possible implementation of aspect, the lithium battery group that the integrated chip inputs in the 4th input pin it is surplus
When remaining voltage is less than first critical voltage, accounting for for the pwm control signal that the output pin of integrated chip the 6th exports is adjusted
Empty ratio.
The beneficial effects of the utility model are：
By a kind of battery multi-source charge protector of offer, including at least it is made up of, and electrically connects a section lithium battery
In load circuit with to load circuit provide operating voltage lithium battery group；Lithium battery group is electrically connected to be inputted to lithium battery group
The charging circuit of charging voltage；It is electrically connected between lithium battery group and charging circuit with or off lithium battery group and charging electricity
The on-off circuit of the electrical connection on road；And be electrically connected to lithium battery group to obtain the residual voltage of lithium battery group, and by its with it is pre-
The first critical voltage put compares, and when residual voltage is less than the first critical voltage, charging control circuit is exported to control
On-off circuit transmission amplitude is located at the pwm control signal of the electric current in the first current amplitude；Or it is higher than first in residual voltage
During critical voltage, charging control circuit output is more than the of the electric current of the first current amplitude to controlling switch circuit transmission amplitude
One control signal, until the residual voltage obtained reaches the charging control circuit of the full piezoelectric voltage of lithium battery group.
When the residual voltage of lithium battery group is less than the first critical voltage, it is made to lithium battery group by controlling switch circuit
Transmission amplitude is located at the electric current in the first current amplitude, when the residual voltage of lithium battery group rises above the first critical voltage
When, controlling switch circuit makes it be more than the electric current of the first current amplitude to lithium battery group transmission amplitude, until the electricity of lithium battery group
Pressure reaches full piezoelectric voltage, i.e. controlling switch circuit disconnects the electrical connection of lithium battery group and charging circuit.
The utility model can effectively reduce the destruction to the internal structure of lithium battery group, and be expired in lithium battery group
During piezoelectric voltage, the electrical connection of lithium battery group and charging circuit is disconnected, lithium battery group can be reduced and fill quick-fried accident.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the present application or background technology, the application will be implemented below
The required accompanying drawing used illustrates in example or background technology.
Fig. 1 is the circuit logic schematic diagram of the utility model embodiment one；
Fig. 2 is the circuit logic schematic diagram of the utility model embodiment two；
Fig. 3 is the circuit logic schematic diagram of the utility model embodiment three；
Fig. 4 is the circuit logic schematic diagram of the utility model embodiment four；
Fig. 5 is the circuit logic schematic diagram of the utility model embodiment five；
Fig. 6 is the Part I schematic diagram of the circuit connection of the specific embodiment of the utility model one；
Fig. 7 is the Part II schematic diagram of the circuit connection of the specific embodiment of the utility model one；
Fig. 8 is the Part III schematic diagram of the circuit connection of the specific embodiment of the utility model one.
In figure：1st, load circuit；2nd, charging circuit；21st, solar power supply circuit；22nd, mains-supplied circuit；3rd, switch electricity
Road；4th, charging control circuit；41st, first compares sub-circuit；42nd, the first control sub-circuit；43rd, second compares sub-circuit；44th,
Two control sub-circuits；45th, the 3rd compares sub-circuit；46th, sub-circuit is judged；5th, the first mu balanced circuit；6th, selection circuit；7th, power
Circuit；8th, body induction circuit；BT1, lithium battery group；D1, the first diode；D2, the second diode；D3, the 3rd diode；
D4, the 4th diode；Q1, the first metal-oxide-semiconductor；Q2, second transistor；Q3, the 3rd metal-oxide-semiconductor；R1, first resistor；R2, the second electricity
Resistance；R3,3rd resistor；R4, the 4th resistance；R5, the 5th resistance；R6, the 6th resistance；R7, the 7th resistance；R8, the 8th resistance；
R9, the 9th resistance；R10, the tenth resistance；R11, the 11st resistance；R12, the 12nd resistance；R30, the 30th resistance；C1, first
Electric capacity；C2, the second electric capacity；C3, the 3rd electric capacity；C4, the 4th electric capacity；C5, the 5th electric capacity；C6, the 6th electric capacity；C7, the 7th electric capacity；
RE1, the first human body sensor；U1, integrated chip；U2, voltage-stabiliser tube；S1, first switch.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clear, complete description, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Term " first ", " second " etc. be only used for describe purpose, and it is not intended that instruction or imply relative importance or
The implicit quantity for indicating indicated technical characteristic of person.Thus, define the feature of " first ", " second " etc. can express or
Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the utility model.
The utility model is described in further detail below by each specific embodiment combination accompanying drawing.
Embodiment one：
Trickle charge refers to the continuous low current charge for making lithium battery group BT1 be maintained at approximate fully charged state.Its
In, for single lithium battery, trickle general control single lithium battery battery core capacity 1/10th；For by more piece
For the lithium battery situation in parallel for forming lithium battery group BT1, it is necessary to be debugged according to actual conditions, acquisition meets lithium battery group BT1
Trickle.
Dutycycle refers to the ratio shared by conduction time in a pulse cycle.
Lithium battery, which overcharges, refers to that lithium cell charging to battery core voltage is higher than some fixed upper limit magnitude of voltage, such as 4.2
Volt.The protection voltage that overcharges of lithium battery determines according to the battery core of lithium battery.
Lithium battery, which is crossed to put, refers to that lithium battery is discharged to battery core voltage less than some fixation lower voltage limit value, such as 2.1
Volt.The Cross prevention voltage of lithium battery determines according to the battery core of lithium battery.
The present embodiment is specifically related to a kind of battery multi-source charge protector, as shown in figure 1, including：
Lithium battery group BT1, at least it is made up of a section lithium battery, and is electrically connected to load circuit 1 to be provided to load circuit 1
Operating voltage；Specifically, the lithium battery group BT1 of the present embodiment is made up of the lithium battery parallel connection of two sections and the above.
Charging circuit 2, lithium battery group BT1 is electrically connected to lithium battery group BT1 input charging voltages；Specifically, this reality
Apply combination of the charging circuit 2 in example for solar power supply circuit 21 and mains-supplied circuit 22；In other embodiments, charge
Circuit 2 can also be individually solar power supply circuit 21 or be individually mains-supplied circuit 22.
On-off circuit 3, be electrically connected between lithium battery group BT1 and charging circuit 2 with or off lithium battery group BT1 with
The electrical connection of charging circuit 2；Specifically, when on-off circuit 3 is in closure state, lithium battery group BT1 is electrically connected with charging circuit 2
Conducting is connect, for charging circuit 2 by on-off circuit 3 to lithium battery group BT1 input charging voltages, lithium battery group BT1 is in charging shape
State；When on-off circuit 3 is off, lithium battery group BT1 and charging circuit 2 electrical connection end, and lithium battery group BT1 is in
Non- charged state.
Charging control circuit 4, be electrically connected to lithium battery group BT1 to obtain lithium battery group BT1 residual voltage, and by its with
The first preset critical voltage compares；Specifically, charging control circuit 4 compares the control son electricity of sub-circuit 41 and first including first
Road 42.
Wherein, first compares sub-circuit 41 and is electrically connected to lithium battery group BT1, obtains lithium battery group BT1 residual voltage, and
By it compared with the first preset critical voltage, output represents the first comparison signal of comparative result.Comparative result can be to obtain
The lithium battery group BT1 obtained residual voltage is higher than the first critical voltage, or low for the lithium battery group BT1 of acquisition residual voltage
In the first critical voltage.
First control sub-circuit 42 is electrically connected to first and compares sub-circuit 41, and receives the first comparison signal.In reception
When what the first comparison signal represented is that the lithium battery group BT1 residual voltage obtained be less than the first critical voltage, the first control is sub
Circuit 42 exports the pwm control signal of the electric current in the first current amplitude to the transmission of controlling switch circuit 3；Receiving
The first comparison signal represent be that the lithium battery group BT1 residual voltage obtained be higher than the first critical voltage when, first controls
Sub-circuit 42 exports the first control signal of the electric current for being more than the first current amplitude to the transmission amplitude of controlling switch circuit 3, directly
Residual voltage to acquisition reaches lithium battery group BT1 full piezoelectric voltage.Now, the first control sub-circuit 42 exports to control out
Powered-down road 3 disconnects lithium battery group BT1 and the 4th control signal of the electrical connection of charging circuit 2.
It is lithium battery group BT1 trickle corresponding to first current amplitude, meaning is identical with the trickle of single lithium battery；Specifically
Ground, the numerical value of the first current amplitude need to obtain by debugging.
In addition, the charging control circuit 4 in the present embodiment is electrically connected with provides the power supply circuit 7 of operating voltage for it.Tool
Body, power supply circuit 7 can be mains-supplied circuit 22 or another group of lithium battery group BT1.
Following beneficial effect as expected can be reached by implementing the present embodiment：
It can obtain lithium battery group BT1 residual voltage in real time by charging control circuit 4, and by itself and preset first
Critical voltage compares, pwm control signal or the first control signal according to corresponding to exporting comparative result so that in lithium battery group
When BT1 residual voltage is less than the first critical voltage, controlling switch circuit 3 makes its self-charging circuit 2 be transmitted to lithium battery group BT1
Electric current in the first current amplitude, the destruction of lithium battery group BT1 internal structures is reduced, ensure lithium battery group BT1 use
Life-span.
, still can be with lithium cell charging to full piezoelectric voltage in addition, the existing lithium battery charging circuit 2 generally used
The trickle of intermittence is to lithium cell charging；And if when the load of lithium battery connection does not work for a long time, lithium battery is kept because long-term
In charged state, exist and larger fill quick-fried hidden danger.
The present embodiment disconnects being electrically connected for charging circuit 2 and lithium battery group BT1 in lithium cell charging to full piezoelectric voltage
Connect, effectively reduce lithium battery fills quick-fried hidden danger.
Embodiment two
The present embodiment and the difference of embodiment one are, as shown in Fig. 2 lithium battery group BT1 is as charging control circuit 4
The offer source of operating voltage, and be electrically connected between lithium battery group BT1 and charging control circuit 4 for from lithium battery group BT1 to
First mu balanced circuit 5 of the stable operating voltage of the transmission of charging control circuit 4.
Following beneficial effect as expected can be reached by implementing the present embodiment：
Lithium battery group BT1 and charging control circuit 4 are electrically connected by the first mu balanced circuit 5, subtracted charging control circuit 4
The power supply circuit 7 separately connect, simplify the structure of integrated circuit.
Embodiment three
The present embodiment and the difference of embodiment two be, as shown in figure 3, between the mu balanced circuit 5 of charging circuit 2 and first,
And between lithium battery group BT1 and the first mu balanced circuit 5, also it is electrically connected with selection circuit 6.Selection circuit 6 can only select to turn on
The electrical connection of the mu balanced circuit 5 of charging circuit 2 and first and wherein the one of the electrical connection of lithium battery group BT1 and the first mu balanced circuit 5
Bar.Specifically, when charging circuit 2 turns on the electrical connection of the first mu balanced circuit 5, the operating voltage of charging control circuit 4 by
Charging circuit 2 provides；On the contrary, when lithium battery group BT1 turns on the electrical connection of the first mu balanced circuit 5, charging control circuit 4
Operating voltage provided by lithium battery group BT1.
Preferably, when lithium battery group BT1 is in charged state, conducting charging circuit 2 is electrically connected with the first mu balanced circuit 5
Connect, operating voltage is provided from charging circuit 2 to charging control circuit 4；And when lithium battery group BT1 is in non-charged state, lead
Logical lithium battery group BT1 and the first mu balanced circuit 5 electrical connection, work electricity is provided from lithium battery group BT1 to charging control circuit 4
Pressure.
Following beneficial effect as expected can be reached by implementing the present embodiment：
By selection circuit 6, when lithium battery group BT1 is in charged state, from charging circuit 2 to charging control circuit 4
Operating voltage is provided, especially in the state of load circuit 1 is stopped, lithium battery group BT1 can be improved and put in charging
The state of electricity, improve lithium battery group BT1 charge efficiency.
Example IV
The present embodiment and the difference of embodiment three are, as shown in figure 4, including solar powered electricity in charging circuit 2
During road 21, charging control circuit 4 also includes：
Second compares sub-circuit 43, is electrically connected to solar power supply circuit 21 to obtain the electricity of solar power supply circuit 21
Pressure, and by it compared with the second preset critical voltage, output represents the second comparison signal of comparative result；Specifically, second
Critical voltage is some fixed voltage, and what the fixed voltage reflected is the lower limit supply voltage of solar power supply circuit 21.I.e.
When the voltage of the solar power supply circuit 21 of acquisition is less than the fixed voltage, it is believed that light intensity is weaker, it may be possible to night or the moon
My god.
Specifically, the numerical value of the fixed voltage is relevant with the long-term average intensity in residing region.
Second control sub-circuit 44, is electrically connected to second and compares sub-circuit 43 to receive the second comparison signal, and second
When the voltage of solar power supply circuit 21 of the comparative result that comparison signal represents to obtain is less than the second critical voltage, output control
The second control signal that load circuit 1 processed works；
Face in the voltage of solar power supply circuit 21 of the comparative result that the second comparison signal represents to obtain higher than second
During boundary's voltage, the 3rd control signal that output control load circuit 1 is stopped.
Specifically, load, which can be that illuminating lamp is either other, needs what is worked at light intensity weaker night or cloudy day to bear
Carry, play in the case where light intensity is weaker, there is provided the effect of illumination or other promptings.
Following beneficial effect as expected can be reached by implementing the present embodiment：
Charged by solar power supply circuit 21 to lithium battery group BT1, there is clean energy, reproducible advantage；In addition,
Compare the judgement that sub-circuit 43 can make light intensity roughly by second, and when light intensity is determined as weaker, pass through
Two control sub-circuits 44 control loaded work piece so that load can play the advantages of its effect automatically when light intensity is weaker.
Embodiment five
The difference of the present embodiment and example IV is, as shown in figure 5, charging control circuit 4 is also electrically connected with for inciting somebody to action
Human-induced signal is converted into the body induction circuit 8 of induced voltage, and body induction circuit 8 is by the induced voltage after conversion
Input to charging control circuit 4；Specifically, body induction circuit 8 is using human body sensor as core, human body sensor
Induction zone with a fixed range；The range size of induction zone and the manufacturer of human body sensor and model have
Close, the human body sensor of the different model of different manufacturers production, there is the induction zone of different range.
When people is in the induction zone of human body sensor, human body sensor translation table is shown with the sensing letter of people
Number exported for corresponding induced voltage；Likewise, when in induction zone nobody when, human body sensor conversion represent nobody sense
Induction signal is that corresponding induced voltage exports.
Charging control circuit 4 also includes：
3rd compares sub-circuit 45, is electrically connected to body induction circuit 8 to receive induced voltage, and by itself and preset
Three critical voltages compare, and output represents the 3rd comparison signal of comparative result；Specifically, the 3rd critical voltage is by human body sensing electricity
The human body sensor that road 8 uses determines that the 3rd of the human body sensor of different manufacturers or different model faces
Boundary's voltage is different.
Specifically, when the comparative result that the 3rd comparison signal represents is higher than three critical voltages for induced voltage, represent
Someone in induction zone；On the contrary, when the comparative result that the 3rd comparison signal represents is less than three critical voltages for induced voltage,
Represent induction zone in nobody.
Judge sub-circuit 46, while be electrically connected to second and compare sub-circuit 43 and the 3rd and compare sub-circuit 45, and at the same time
Second of voltage less than the comparative result of the second critical voltage for receiving the solar power supply circuit 21 for representing to obtain compares letter
Number, and represent induced voltage higher than the 3rd critical voltage comparative result three comparison signals when, output make the second control
The judgement signal of second control signal of the output control load circuit 1 of sub-circuit 44 work.
Specifically, judge that the function to be realized of sub-circuit 46 is AND operation, can be realized by AND logic circuit；Reach
To effect be and someone weaker in light intensity enter induction zone in when, control loaded work piece, load is played its effect；
Following beneficial effect as expected can be reached by implementing the present embodiment：
By body induction circuit 8, control load only works in induction zone during someone so that is sent out when being supported on demand
The effect of waving, and be stopped in other cases, there is the advantages of energy-conservation.
Below by one specifically embodiment illustrate the more protection circuits of battery of the present utility model.
As shown in fig. 6, the more protection circuits of battery are included by the multisection lithium battery lithium battery group BT1 in parallel formed, lithium electricity
Pond group BT1 positive pole is electrically connected to the first diode D1 negative electrode, and the first diode D1 anode is electrically connected to the first metal-oxide-semiconductor Q1
Drain electrode, the first metal-oxide-semiconductor Q1 source electrode is electrically connected to the positive pole of solar power supply circuit 21 and mains-supplied circuit 22；First
Metal-oxide-semiconductor Q1 grid is electrically connected to second transistor Q2 colelctor electrode, reverse parallel connection between the first metal-oxide-semiconductor Q1 source electrode and drain electrode
There is the 3rd diode D3.
Second transistor Q2 emitter stage is electrically connected to lithium battery group BT1 negative pole, and second transistor Q2 base stage is electrically connected
The 4th resistance R4 one end is connected to, the 4th resistance R4 one end is also electrically coupled to 3rd resistor R3 one end, 3rd resistor R3's
The other end is electrically connected to the positive pole of solar power supply circuit 21 and mains-supplied circuit 22；Solar power supply circuit 21 and civil power supply
The positive pole of circuit 22 is also electrically coupled to the 5th resistance R5 one end, and the 5th resistance R5 other end is electrically connected to second transistor
Q2 colelctor electrode.
Be parallel between solar power supply circuit 21 and the positive pole and negative pole of mains-supplied circuit 22 by first resistor R1 and
Second resistance R2 connects the bleeder circuit to be formed, and second resistance R2 both ends are parallel with the first electric capacity C1.
Lithium battery group BT1 positive pole is also electrically coupled to first switch S1 one end, first switch S1 other end electrical connection
In the 4th diode D4 anode, the 4th diode D4 negative electrode is electrically connected to the second diode D2 negative electrode, the second diode
D2 anode is electrically connected to the 30th resistance R30 one end, and the 30th resistance R30 other end is electrically connected to solar powered electricity
Road 21 and the positive pole of mains-supplied circuit 22.
The first switch S1 other end is also electrically coupled to voltage-stabiliser tube U2 input pin, voltage-stabiliser tube U2 grounding leg ground connection；Surely
The second electric capacity C2 and the 3rd electric capacity C3 is parallel between pressure pipe U2 input pin and grounding leg；Voltage-stabiliser tube U2 grounding leg and output
The 4th electric capacity C4 and the 5th electric capacity C5 is parallel between pin.
As shown in fig. 7, the more protection circuits of battery also include integrated chip U1, with reference to shown in Fig. 6 and Fig. 7, integrated chip
U1 the first input pin is electrically connected to voltage-stabiliser tube U2 output pin, and integrated chip U1 the 3rd input pin is electrically connected to first resistor
Between R1 and second resistance R2, integrated chip U1 the 4th input pin is electrically connected to the 8th resistance R8 one end, the 8th resistance R8
Other end ground connection, the 8th resistance R8 both ends are parallel with the 7th electric capacity C7, and the 8th resistance R8 one end is also electrically coupled to the 7th
Resistance R7 one end, the 7th resistance R7 other end are electrically connected to lithium battery group BT1 positive pole.
Integrated chip U1 the 5th output pin ground connection, integrated chip U1 the 6th output pin are electrically connected to the 4th resistance R4's
The other end, integrated chip U1 the 7th output pin are electrically connected to the tenth resistance R10 one end, the tenth resistance R10 other end electricity
The 3rd metal-oxide-semiconductor Q3 grid, the 3rd metal-oxide-semiconductor Q3 source ground are connected to, the 3rd metal-oxide-semiconductor Q3 drain electrode is electrically connected to load
Negative pole, the positive pole of load are electrically connected to the 12nd resistance R12 one end, and the 12nd resistance R12 other end is electrically connected to lithium electricity
Pond group BT1 positive pole.
The 11st resistance R11 is parallel between 3rd metal-oxide-semiconductor Q3 grid and the 3rd metal-oxide-semiconductor Q3 source electrode.
Integrated chip U1 the 8th input pin is electrically connected to the 9th resistance R9 one end, and the 9th resistance R9 other end is electrically connected
It is connected to voltage-stabiliser tube U2 output pin.
With reference to shown in Fig. 7 and Fig. 8, integrated chip U1 the second input pin is electrically connected to the first human body sensor RE1
Output pin, the first human body sensor RE1 input pin is electrically connected to voltage-stabiliser tube U2 output pin, the first human body sensing
Sensor RE1 grounding leg ground connection；The 6th electricity is parallel between first human body sensor RE1 output pin and grounding leg
Hinder R6 and the 6th electric capacity C6.
Preset the first critical voltage in integrated chip U1, the second critical voltage, the 3rd critical voltage and full piezoelectric voltage, and
And it is integrated with comparison program.
Other integrated chip U1 is also integrated with duty cycle adjustment program, and to the second critical voltage and the 3rd critical voltage
Ask and operation program.
Integrated chip U1 the 4th input pin input voltage be less than the first critical voltage when, integrated chip U1 adjust by
The dutycycle of the pwm control signal of 6th output pin output, turns on second transistor Q2 and the first metal-oxide-semiconductor Q1, and make to pass through
The amplitude of electric current be located in the first current amplitude.
When the voltage that integrated chip U1 the 4th input pin inputs is higher than the first critical voltage, the 6th of integrated chip U1 the
Output pin exports high level, turns on second transistor Q2 and the first metal-oxide-semiconductor Q1, and the amplitude for the electric current for making to pass through is more than first
Current amplitude.
Lithium battery group BT1 is with the increase in charging interval, and the voltage in battery core gradually rises, when lithium battery group BT1 electricity
When core voltage reaches full piezoelectric voltage, integrated chip U1 the 6th output pin output low level, make second transistor Q2 and the first MOS
Pipe Q1 ends.
Now, first switch S1 is off, integrated chip U1 and the first human body sensor RE1 work
Voltage is provided by solar power supply circuit 21 or mains-supplied circuit 22.Here first switch S1 is hand switch, by artificial
Judged, it is relatively strong or when being electrically connected with mains-supplied circuit 22 in light intensity, first switch S1 is disconnected manually；It is and weaker in light intensity
Or when removing mains-supplied circuit 22, manual closing first switch S1, from lithium battery group BT1 to integrated chip U1 and the first human body
Inductive pick-up RE1 provides operating voltage.
In addition, the 4th diode D4 can play a part of preventing maloperation.It is i.e. relatively strong or be electrically connected with city in light intensity
During electric power supply circuit 22, even if there is the operation of closure first switch S1 by mistake, electric current is ended by the 4th diode D4, so as in lithium
After battery pack BT1 battery core voltage reaches full piezoelectric voltage, that is, disconnect solar power supply circuit 21 or mains-supplied circuit 22 and lithium
Battery pack BT1 electrical connection.
In addition, when loading idle state, that is, load when not in use, while removing solar power supply circuit 21 and city
Electric power supply circuit 22；Now, first switch S1 is disconnected manually, makes integrated chip U1 and lithium battery group BT1, and the first body-sensing
Inductive sensing device RE1 disconnects with lithium battery group BT1 to be electrically connected, and helps to reduce the power consumption of whole circuit.
In addition, the input voltage in integrated chip U1 the second input pin is higher than the 3rd critical voltage, and simultaneously the 3rd
When the input voltage of input pin is less than the second critical voltage, integrated chip U1 the 7th output pin output high level, make the 3rd MOS
Pipe Q3 is turned on, loaded work piece.
And after solar power supply circuit 21 and mains-supplied circuit 22 is removed, when load needs work, manual closing the
One switch S1, operating voltage is provided from lithium battery group BT1 to integrated chip U1 and the first human body sensor RE1.
Following beneficial effect as expected can be reached by implementing the present embodiment：
Complete to compare by integrated chip U1, duty cycle adjustment and ask and computing, have and simplify the excellent of integrated circuit structure
Point；And comparison program, duty cycle adjustment program and to ask with operation program be ripe program that integrated chip U1 is integrated with, are opened
It is low to send out cost, contributes to popularization of the present utility model to use.
In addition, in the case of without using load, by disconnecting lithium battery group BT1 and integrated chip U1, the first body-sensing
Inductive sensing device RE1 electrical connection, also there is the advantages of reducing power consumption.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiment.It is real especially for system
For applying example, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method
Part explanation.
Above-described the utility model embodiment, does not form the restriction to scope of protection of the utility model.It is any
Made within spirit of the present utility model and principle modifications, equivalent substitutions and improvements etc., should be included in the utility model
Protection domain within.
Claims (10)
- A kind of 1. battery multi-source charge protector, it is characterised in that including：Lithium battery group (BT1), at least it is made up of a section lithium battery, and is electrically connected to load circuit (1) with to the load circuit (1) operating voltage is provided；Charging circuit (2), the lithium battery group (BT1) is electrically connected to the lithium battery group (BT1) input charging voltage；On-off circuit (3), it is electrically connected between the lithium battery group (BT1) and the charging circuit (2) with or off institute State the electrical connection of lithium battery group (BT1) and the charging circuit (2)；Charging control circuit (4), the lithium battery group (BT1) is electrically connected to obtain the residue electricity of the lithium battery group (BT1) Pressure, and by it compared with the first preset critical voltage；When the residual voltage is less than first critical voltage, charging control circuit (4) output is described to control On-off circuit (3) transmission amplitude is located at the pwm control signal of the electric current in the first current amplitude；When the residual voltage is higher than first critical voltage, charging control circuit (4) output is described to control On-off circuit (3) transmission amplitude is more than the first control signal of the electric current of the first current amplitude, until the remaining electricity obtained Pressure reaches the full piezoelectric voltage of the lithium battery group (BT1).
- 2. battery multi-source charge protector as claimed in claim 1, it is characterised in that charging control circuit (4) bag Include：First compares sub-circuit (41), is electrically connected to the lithium battery group (BT1) to obtain the lithium battery group (BT1) residue Voltage, and by it compared with preset first critical voltage, output represents the first comparison signal of comparative result；First control sub-circuit (42), is electrically connected to described first and compares sub-circuit (41) to receive first comparison signal, And when first comparison signal represents that the residual voltage is less than the comparative result of first critical voltage, export to Control the pwm control signal for the electric current that the on-off circuit (3) transmission amplitude is located in the first current amplitude；When first comparison signal represents that the residual voltage is higher than first critical voltage, the charging control circuit (4) the first control signal of the electric current to control the on-off circuit (3) transmission amplitude to be more than the first current amplitude is exported, directly The residual voltage to acquisition reaches the full piezoelectric voltage of the lithium battery group (BT1).
- 3. battery multi-source charge protector as claimed in claim 1 or 2, it is characterised in that the battery multi-source charger Protection circuit also includes：First mu balanced circuit (5), it is electrically connected between the lithium battery group (BT1) and the charging control circuit (4) and is used for certainly The lithium battery group (BT1) transmits stable operating voltage to the charging control circuit (4).
- 4. battery multi-source charge protector as claimed in claim 3, it is characterised in that the battery multi-source charge protection electricity Road also includes：Selection circuit (6), it is electrically connected between the charging circuit (2) and first mu balanced circuit (5), and lithium electricity Between pond group (BT1) and first mu balanced circuit (5), the charging circuit (2) and first mu balanced circuit (5) are turned on Wherein one of the electrical connection of electrical connection and the lithium battery group (BT1) and first mu balanced circuit (5).
- 5. battery multi-source charge protector as claimed in claim 1, it is characterised in that the charging circuit (2) can be too It is positive can power supply circuit (21) or mains-supplied circuit (22) or both combination.
- 6. battery multi-source charge protector as claimed in claim 5, it is characterised in that include in the charging circuit (2) When having solar power supply circuit (21), the charging control circuit (4) also includes：Second compares sub-circuit (43), is electrically connected to the solar power supply circuit (21) to obtain the solar power supply circuit (21) voltage, and by it compared with the second preset critical voltage, output represents the second comparison signal of comparative result；Second control sub-circuit (44), is electrically connected to described second and compares sub-circuit (43) to receive second comparison signal, And it is less than institute in the voltage of the solar power supply circuit (21) of the comparative result that second comparison signal represents to obtain When stating the second critical voltage, the second control signal of output control load circuit (1) work；It is higher than in the voltage of the solar power supply circuit (21) of the comparative result that second comparison signal represents to obtain During second critical voltage, the 3rd control signal that output control load circuit (1) is stopped.
- 7. battery multi-source charge protector as claimed in claim 6, it is characterised in that the battery multi-source charge protection electricity Road also includes：Body induction circuit (8), for human-induced signal to be converted into induced voltage and inputted to the charging control circuit (4)；The charging control circuit (4) includes：3rd compares sub-circuit (45), is electrically connected to the body induction circuit (8) to receive the induced voltage, and by its with The 3rd preset critical voltage compares, and output represents the 3rd comparison signal of comparative result；Judge sub-circuit (46), while be electrically connected to described second and compare sub-circuit (43) and the described 3rd and compare sub-circuit (45) voltage for receiving, and at the same time the solar power supply circuit (21) for representing to obtain is less than second critical voltage Comparative result the second comparison signal, and represent the induced voltage higher than the comparative result of the 3rd critical voltage During three comparison signals, output makes the second control of the second control sub-circuit (44) output control load circuit (1) work The judgement signal of signal.
- 8. battery multi-source charge protector as claimed in claim 7, it is characterised in that the charging control circuit (4) exists When obtaining the residual voltage of the lithium battery group (BT1) and reaching the full piezoelectric voltage of the lithium battery group (BT1), export to control The on-off circuit (3) disconnects the lithium battery group (BT1) and the 4th control signal of the electrical connection of the charging circuit (2).
- 9. battery multi-source charge protector as claimed in claim 8, it is characterised in that the charging control circuit (4) with With the second input pin for inputting the induced voltage；The voltage of the solar power supply circuit (21) obtained for input 3rd input pin；For the 4th input pin of the residual voltage for inputting the lithium battery group (BT1) obtained；It is described for exporting Pwm control signal or the 6th output pin of first control signal or the 4th control signal；It is and described for exporting The integrated chip (U1) of 7th output pin of the second control signal or the 3rd control signal is core.
- 10. battery multi-source charge protector as claimed in claim 9, it is characterised in that the integrated chip (U1) is in institute When stating the residual voltage of the lithium battery group (BT1) of the 4th input pin input and being less than first critical voltage, described in regulation The dutycycle of the pwm control signal of the output pin of integrated chip (U1) the 6th output.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017206932649 | 2017-06-14 | ||
| CN201720693264 | 2017-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207098667U true CN207098667U (en) | 2018-03-13 |
Family
ID=61554623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720791081.0U Expired - Fee Related CN207098667U (en) | 2017-06-14 | 2017-07-01 | Battery multi-source charge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207098667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181307A (en) * | 2017-06-14 | 2017-09-19 | 深圳市全智芯科技有限公司 | Battery multi-source charge protector |
-
2017
- 2017-07-01 CN CN201720791081.0U patent/CN207098667U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181307A (en) * | 2017-06-14 | 2017-09-19 | 深圳市全智芯科技有限公司 | Battery multi-source charge protector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202424264U (en) | Positive and negative pulse charge-discharge control system for power battery charger | |
| CN103236733A (en) | Electric bicycle charging device with functions of delaying time and powering off | |
| CN104300605B (en) | Power circuit and control method thereof | |
| CN207098667U (en) | Battery multi-source charge protector | |
| CN104767243B (en) | A kind of charging method and device and charging circuit and the charging system with the circuit | |
| CN208522519U (en) | A kind of photovoltaic power generation electric storage device | |
| CN107181307A (en) | Battery multi-source charge protector | |
| CN2446707Y (en) | Three stage controlled balance charger | |
| CN103280850B (en) | Drive circuit with charger baby and multipurpose LED (light-emitting diode) functions | |
| CN203233223U (en) | Electric bicycle charging device with function of time-delay power-off | |
| CN202474940U (en) | Lithium battery miner lamp charging management switch based on current direction | |
| CN101404735B (en) | Mobile digital television set charged by solar energy | |
| CN205389127U (en) | Nickel cadmium cell charger | |
| CN202888925U (en) | Charging protector for electric vehicle | |
| CN205544575U (en) | Complementary power generation facility of solar energy commercial power | |
| CN108233520A (en) | A kind of photovoltaic generation electric storage device | |
| CN108988433B (en) | Charging automatic detection circuit of solar lighting controller | |
| CN202008076U (en) | Solar emergency lamp | |
| CN202817836U (en) | Mobile optical power circuit | |
| CN201523467U (en) | Circuit for charging and discharging internally and externally by using USB interface and solar camping lamp circuit | |
| CN206432770U (en) | Shadow shows control device and irregular building shadow show display systems | |
| CN2487143Y (en) | Intelligent Nickel-cadmium (Nickel-hydrogen) cell charger | |
| CN202696943U (en) | Solar disaster-preventing emergency lamp | |
| CN209395591U (en) | Solar automobile fills control circuit and solar automobile charging system | |
| CN2414567Y (en) | Solar-energy transformerless color television set power source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |