CN107221998A - A kind of intelligent battery - Google Patents
A kind of intelligent battery Download PDFInfo
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- CN107221998A CN107221998A CN201710643130.0A CN201710643130A CN107221998A CN 107221998 A CN107221998 A CN 107221998A CN 201710643130 A CN201710643130 A CN 201710643130A CN 107221998 A CN107221998 A CN 107221998A
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- 230000002159 abnormal effect Effects 0.000 claims abstract description 20
- 238000007600 charging Methods 0.000 claims description 101
- 238000001514 detection method Methods 0.000 claims description 100
- 230000005611 electricity Effects 0.000 claims description 27
- 230000005669 field effect Effects 0.000 claims description 12
- 229910001416 lithium ion Inorganic materials 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- H02J7/0026—
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to a kind of intelligent battery; the battery pack includes the multiple battery chips being serially connected; the battery protection ic for charge/discharge voltage detecting is provided with the two ends of each battery chip; multiple charge/discharge voltage detecting circuits form charge/discharge voltage detecting cascade circuit by cascade; the switch of intelligent battery charge or discharge metal-oxide-semiconductor is controlled by the output result of above-mentioned charge/discharge cascade circuit, so as to realize the protection to battery pack charge/discharge.This intelligent battery can independently carry out voltage detecting to each battery chip in battery pack, and the appearance of any one battery chip is charged, and abnormal or electric discharge is abnormal to automatically cut off the major loop of battery pack, and safety coefficient is higher, and service life is longer.
Description
Technical field
The present invention relates to electrical equipment field of batteries, in particular it relates to a kind of intelligent battery.
Background technology
As the electrical equipments such as electric bicycle, electric automobile are increasingly popularized in people's daily life, and it is electronic
The battery performance that equipment provides energy is also further concerned.Therefore, effective control is carried out to battery so that battery
Security is protected, and makes the performance of battery obtain farthest playing as important problem.
The battery of current electrical equipment is mostly in series using multiple battery chips, and usual voltage is according to the actual needs
Also increasing, the security performance so to battery requires also more and more higher.Prior art is charged and discharged voltage for battery
Detection is typically that directly the voltage at battery two ends is detected, because the voltage at battery two ends is relatively high, it is easy to burn
Bad voltage detecting IC and metal-oxide-semiconductor controlling switch, this mode make it that the safety coefficient of battery is poor, while reducing battery
Service life.
The content of the invention
It is an object of the invention to the defect and deficiency for overcoming prior art, there is provided a kind of intelligent battery, the intelligent battery
Detect that voltage detecting precision is high to each battery chip in battery by cascading detection circuit, safety coefficient is high, consumable
Electricity is low, pressure-resistant problems of the IC with other elements is cleverly solved by partial pressure, while being extended by the equalizing circuit of loading
Battery.The intelligent battery can use mobile phone A PP to carry out the intelligent battery by increasing bluetooth/GPRS module
Switch control, and GPRS module can be positioned to the intelligent battery, so as to increase anti-theft feature.
In order to achieve the above object, the present invention provides a kind of intelligent battery, and the intelligent battery includes being serially connected first
Battery chip, the second battery chip ..., N battery chips, the cathode voltage highest of the N battery chips, its feature exists
In, the intelligent battery also include being arranged on the first battery chip two ends be used for detect the first battery chip charging
Voltage the first charging voltage detection circuit, be arranged on the second battery chip two ends be used for detect second battery
Piece charging voltage the second charging voltage detection circuit ... and be arranged on the N battery chips two ends be used for detect
The N charging voltages detection circuit of the N battery chip charging voltages；The logic of the N charging voltages detection circuit is defeated
Go out end series connection RNDetect that the logic output terminal of circuit is connected, the N-1 fills with next stage N-1 charging voltages after resistance
The logic output terminal series connection R of piezoelectric voltage detection circuitN-1The logic of circuit is detected after resistance with next stage N-2 charging voltages
Output end is connected ..., the logic output terminal series connection R of the second charging voltage detection circuit2Filled after resistance with described first
The logic output terminal of piezoelectric voltage detection circuit is connected, the logic output terminal and R of first charging voltage detection circuit1Electricity
Resistance is in series；Pass through the R1The logic output result of resistance judges first battery chip, the second battery
Piece ..., N battery chips whether charge exception, if first battery chip, the second battery chip ..., N electricity
Chamber chip bulk charge is normal, then the R1The logic output terminal of resistance is not exported；If first battery chip, second
Battery chip ..., that charging occur in any one in N battery chips or multiple battery chips is abnormal, then the R1Electricity
The logic output terminal of resistance has output, and controls the charge switch of the intelligent battery to disconnect.
According to one embodiment of present invention, the R1Resistance, R2Resistance ..., RN-1Resistance, RNResistance is equal
For resistance identical resistance.
According to one embodiment of present invention, the intelligent battery also includes being arranged on the first battery chip two ends
For detecting the first discharge voltage detection circuit of the first battery chip discharge voltage, being arranged on second battery chip
The detection of the second discharge voltage for detecting the second battery chip discharge voltage circuit at two ends ... and be arranged on
The N discharge voltages detection circuit for being used to detect the N battery chip discharge voltages at the N battery chips two ends；Institute
State the logic output terminal series connection R of N discharge voltages detection circuitFNAfter resistance circuit is detected with next stage N-1 discharge voltages
Logic output terminal be connected, the N-1 discharge voltages detection circuit logic output terminal series connection RFN-1After resistance with
One-level N-2 charging voltages detection circuit logic output terminal be connected ..., the second discharge voltage detection circuit logic it is defeated
Go out end series connection RF2After resistance with first discharge voltage detect circuit logic output terminal be connected, it is described first electric discharge electricity
The logic output terminal and R of pressure detection circuitF1Resistance is in series；Pass through the RF1The logic output result of resistance judges institute
State the first battery chip, the second battery chip ..., N battery chips whether discharge exception, if first battery
Piece, the second battery chip ..., N battery chips discharge normally, then the RF1The logic output terminal of resistance is not defeated
Go out；If first battery chip, the second battery chip ..., any one in N battery chips or multiple batteries
There is electric discharge exception in piece, then the RF1The logic output terminal of resistance has output, and controls the discharge switch of the intelligent battery
Disconnect.
According to one embodiment of present invention, the RF1Resistance, RF2Resistance ..., RFN-1Resistance, RFNElectricity
Resistance is resistance identical resistance.
According to one embodiment of present invention, the first charging voltage detection circuit includes resistance R20, R50, sensitivity
Higher model S8261-G2N li-ion cell protection IC, electric capacity C20, PNP type triode Q30；First battery chip
Positive pole is connected with the resistance R20, the output end of the resistance R20 respectively with S8261-G2N 5 pin and the electric capacity C20
One end is connected, and the other end of the electric capacity C20 is connected with S8261-G2N 6 pin and the negative pole of the first battery chip respectively,
3 pin of the S8261-G2N are connected with the base stage after resistance R50 series connection again with the PNP type triode Q30, the positive-negative-positive
Triode Q30 radio pole is connected with the positive pole of first battery chip, and the current collection of the PNP type triode Q30 is extremely
First charging voltage detects the logic output terminal of circuit, and first battery chip is judged by its logic output result
Whether charging there is exception, if first battery chip charging is abnormal, the PNP type triode Q30 conductings and its current collection
Pole exports high level；If the first battery chip charging is normal, the PNP type triode Q30 is not turned on.
According to one embodiment of present invention, the first discharge voltage detection circuit is detected with first charging voltage
Circuit use same li-ion cell protection IC, 1 pin of the S8261-G2N connected with resistance R30 after again with PNP type triode
Q20 base stage is connected, and the radio pole of the PNP type triode Q20 is connected with the positive pole of first battery chip, described
Extremely described first discharge voltage of PNP type triode Q20 current collection detects the logic output terminal of circuit, is exported and tied by its logic
Fruit judges whether the electric discharge of first battery chip exception occurs, if first battery chip electric discharge is abnormal, the PNP
Type triode Q20 is turned on and its colelctor electrode output high level；If the first battery chip electric discharge is normal, the positive-negative-positive three
Pole pipe Q20 is not turned on.
According to one embodiment of present invention, the second charging voltage detection circuit, the 3rd charging voltage detection electricity
Road ..., N charging voltages detection circuit is using identical charging voltage detection circuit；The second discharge voltage detection
Circuit, the 3rd discharge voltage detection circuit ..., N discharge voltages detection circuit is using identical discharge voltage detection electricity
Road.
According to one embodiment of present invention, the intelligent battery includes 10 or 13 or 16 or 20
The individual battery chip being serially connected.
According to one embodiment of present invention, the N charging voltages detection circuit includes resistance R11, R41, lithium battery
Protect IC, electric capacity C11, PNP type triode Q21；The li-ion cell protection IC uses model HY2110CB IC circuits；It is described
The positive pole of N battery chips is connected with the resistance R11, the output end of the resistance R11 5 pin respectively with HY2110CB and institute
The one end for stating electric capacity C11 is connected, the other end of the electric capacity C11, HY2110CB 6 pin and 2 pin with the N batteries
The negative pole of piece is connected；Base stage phase again with the PNP type triode Q21 after 3 pin of the HY2110CB are connected with resistance R41
Connection, the radio pole of the PNP type triode Q21 is connected with the positive pole of the N battery chips, the PNP type triode
The Q21 current collection extremely N charging voltages detect the logic output terminal of circuit, and described the is judged by its logic output result
Whether the charging of N battery chips there is exception.
According to one embodiment of present invention, if N battery chips charging is abnormal, the PNP type triode Q21
Conducting and its collector output high level；If the N battery chips charging is normal, the PNP type triode Q21 is not turned on.
According to one embodiment of present invention, the N discharge voltages detection circuit detects electricity with the N charging voltages
Road use same li-ion cell protection IC, 1 pin of the HY2110CB connected with resistance R21 after again with PNP type triode Q11's
Base stage is connected, and the radio pole of the PNP type triode Q11 is connected with the positive pole of the N battery chips, the positive-negative-positive
The extremely described N discharge voltages of triode Q11 current collection detect the logic output terminal of circuit, are judged by its logic output result
Whether the electric discharge of the N battery chips there is exception.
According to one embodiment of present invention, if N battery chips electric discharge is abnormal, the PNP type triode Q11
Conducting and its collector output high level；If the N battery chips electric discharge is normal, the PNP type triode Q11 is not turned on.
According to one embodiment of present invention, outside the just extremely described intelligent battery of the intelligent battery N battery chips
Positive pole is connect, two groups of N-channel FETs are provided between the external negative pole of the intelligent battery and the first battery chip negative pole, the
One group of N-channel FET includes four N-channel FET UB, UB1, UB2, UB3 parallel with one another, and second group is N-channel
FET includes four N-channel FET UA, UA1, UA2, UA3 parallel with one another；The N-channel FET UB,
UB1, UB2, UB3 source electrode access the external negative pole of the intelligent battery, described N-channel FET UA, UA1, UA2, UA3
Source electrode access the negative pole of first battery chip, the N-channel FET UB, UB1, UB2, UB3, UA, UA1,
UA2, UA3 drain electrode are connected together；
The logic output terminal and R60 resistance of the first charging voltage detection circuit are sequentially connected in series diode after being in series
D3, resistance R61, the base stage of the resistance R61 output ends access NPN type triode Q31, the radio of the NPN type triode Q31
The external negative pole of the intelligent battery is accessed in pole, and described N-channel FET UB, UB1, UB2, UB3 grid access NPN type
Triode Q31 colelctor electrode；Resistance is in series between the output end of the resistance R61 and NPN type triode Q31 radio pole
R62；
The logic output terminal of first discharge voltage detection circuit is connected a resistance again after being in series with R40 resistance
R72, the resistance R72 output end access NPN type triode Q34 base stage, the N-channel FET UA, UA1, UA2,
UA3 grid accesses NPN type triode Q34 colelctor electrode, the output end of the resistance R72 and penetrating for NPN type triode Q34
Resistance R71 is in series between electrode；
Electric capacity C33 parallel with one another is also associated between the external negative pole of the intelligent battery and the first battery chip negative pole
With electric capacity C34.
According to one embodiment of present invention, the voltage detecting IC in the first charging voltage detection circuit uses model
For S8261-G2N IC circuits, 2 pin of the S8261-G2N are used for over-current detection, the 2 pin series resistances of the S8261-G2N
Described N-channel FET UB, UB1, UB2, UB3, UA, UA1, UA2, UA3 drain electrode, the S8261- are accessed after R74, R75
Resistance R73 and diode D4, the positive pole of the diode D4 are also parallel between G2N 2 pin and the negative pole of the first battery chip
S8261-G2N 2 pin are accessed, negative pole accesses the negative pole of first battery chip.
According to one embodiment of present invention, the intelligent battery includes the indigo plant for being used to control intelligent battery to be charged and discharged
Tooth/GPRS control circuits, the bluetooth/GPRS control circuits include bluetooth/GPRS module and diode D1 parallel with one another
And D2, the diode D1 and D2 positive pole access the output end of the bluetooth module；The negative pole of the diode D1 and institute
The output end for stating R60 resistance is connected, and the negative pole of the diode D2 is connected with the output end of the R40 resistance.
According to the case study on implementation of the present invention, the bluetooth/GPRS control circuit also include resistance R67, R68, R69,
R70, N-channel FET Q50, NPN type triode Q33, electric capacity CA, the output end access resistance of the bluetooth/GPRS module
R67, the output end of the resistance R67 is connected with resistance R68, and electric capacity is connected between the negative pole of first battery chip
CA；The output end access N-channel FET Q50 of resistance R68 grid, the drain electrode string of the N-channel FET Q50
Connect after connection resistance R69 with NPN type triode Q33 base stage, the drain electrode of the N-channel FET Q50 also by R74 with
S8261-G2N 2 pin connect, and the radio pole of the NPN type triode Q33 and N-channel FET Q50 source electrode access institute
The negative pole of the first battery chip is stated, resistance R70 is connected between the radio pole of the NPN type triode Q33 and base stage, it is described
NPN type triode Q33 colelctor electrode is connected with N-channel FET UA, UA1, UA2, UA3 grid.When Q33 base stage electricity
Pressure is higher than conducting voltage, then colelctor electrode is with penetrating electrode conduction, so as to drag down discharge control terminal metal-oxide-semiconductor UB, UB1, UB2, UB3 grid
Pole tension, reaches secondary overcurrent protection.
According to the case study on implementation of the present invention, the intelligent battery is N-channel using the 7th battery chip therein
FET UB, UB1, UB2, UB3, UA, UA1, UA2, UA3 provide power supply, the positive pole series electrical of the 7th battery chip
Hinder after the grid of access N-channel FET UA, UA1, UA2, UA3 after R65, the output end series resistance R66 of the resistance R65
It is connected with the negative pole of first battery chip；The positive pole of 7th battery chip accesses N after also being connected with resistance R64
With the described first electricity after channel field-effect pipe UB, UB1, UB2, UB3 grid, the output end series resistance R63 of the resistance R64
The negative pole of chamber chip is connected.
According to one embodiment of present invention, the intelligent battery also includes being arranged on the first battery chip two ends
First equalizing circuit, the second equalizing circuit for being arranged on the second battery chip two ends ... and be arranged on the N
The N equalizing circuits at battery chip two ends.
According to one embodiment of present invention, the equalizing circuit of the first equalizing circuit second ..., N equalizing circuits
It is identical circuit.
The present invention has the advantages that relative to prior art：This intelligent battery can be independently in battery pack
Each battery chip carry out voltage detecting, any one battery chip occurs that charging is abnormal or electric discharge is abnormal can cut automatically
The major loop of disconnected battery pack, safety coefficient is higher, and service life is longer.
Brief description of the drawings
Fig. 1 is the embodiment circuit theory diagrams of intelligent battery of the present invention.
Embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
The present invention provides a kind of intelligent battery, including be serially connected the first battery chip, the second battery chip ..., N
In battery chip, the embodiment of the present invention, depending on the battery chip quantity of intelligent battery internal series-connection is according to actual conditions, Ke Yishi
3,4,7,10,13,16,20 or 30 etc..Wherein the cathode voltage highest of N battery chips, is somebody's turn to do
Intelligent battery also includes the first charging for being used to detect the first battery chip charging voltage for being arranged on the first battery chip two ends
Voltage detecting circuit, the second charging electricity for being used to detect the second battery chip charging voltage for being arranged on the second battery chip two ends
Pressure detection circuit ... and be arranged on N battery chips two ends be used for detect N battery chip charging voltages N fill
Piezoelectric voltage detects circuit；The logic output terminal series connection R of N charging voltages detection circuitNCharged after resistance with next stage N-1
The logic output terminal of voltage detecting circuit is connected, the logic output terminal series connection R of N-1 charging voltages detection circuitN-1Resistance
Detected afterwards with next stage N-2 charging voltages the logic output terminal of circuit be connected ..., the second charging voltage detection circuit
Logic output terminal series connection R2After resistance with the first charging voltage detect circuit logic output terminal be connected, the first charging voltage
Detect the logic output terminal and R of circuit1Resistance is in series；Pass through R1The logic output result of resistance judge the first battery chip,
Second battery chip ..., N battery chips whether charge exception, if the first battery chip, the second battery chip ...,
N battery chips bulk charge is normal, then R1The logic output terminal of resistance is not exported；If the first battery chip, the second electricity
Chamber chip ..., that charging occur in any one in N battery chips or multiple battery chips is abnormal, then R1Resistance is patrolled
Collecting output end has output, and controls the charge switch of intelligent battery to disconnect.In the embodiment of the present invention, R1Resistance, R2Electricity
Resistance ..., RN-1Resistance, RNResistance is resistance identical resistance.
The first battery chip of detection that is used for that intelligent battery of the present invention also includes being arranged on the first battery chip two ends discharges
First discharge voltage of voltage detects circuit, is arranged on the electric for detection the second battery chip electric discharge of the second battery chip two ends
Pressure the second discharge voltage detection circuit ... and be arranged on N battery chips two ends be used for detect N battery chips
The N discharge voltages detection circuit of discharge voltage；The logic output terminal series connection R of N discharge voltages detection circuitFNAfter resistance with
The logic output terminal of next stage N-1 discharge voltages detection circuit is connected, the logic output of N-1 discharge voltages detection circuit
End series connection RFN-1Detected after resistance with next stage N-2 charging voltages the logic output terminal of circuit be connected ..., second put
The logic output terminal series connection R of piezoelectric voltage detection circuitF2The logic output terminal phase of circuit is detected after resistance with the first discharge voltage
Connection, the first discharge voltage detect the logic output terminal and R of circuitF1Resistance is in series；Pass through RF1The logic output of resistance
As a result judge the first battery chip, the second battery chip ..., N battery chips whether discharge exception, if the first battery
Piece, the second battery chip ..., N battery chips discharge normally, then RF1The logic output terminal of resistance is not exported；Such as
Really the first battery chip, the second battery chip ..., any one in N battery chips or multiple battery chips put
Electrical anomaly, then RF1The logic output terminal of resistance has output, and controls the discharge switch of intelligent battery to disconnect.The embodiment of the present invention
In, RF1Resistance, RF2Resistance ..., RFN-1Resistance, RFNResistance is resistance identical resistance.
As shown in figure 1, being constituted with 10 battery chips being serially connected B1, B2, B3, B4, B5, B6, B7, B8, B9, B10
Intelligent battery exemplified by, wherein B- be battery chip B1 negative pole, B1+, B2+, B3+, B4+, B5+, B6+, B7+, B8+, B9+,
B10+ is battery chip B1, B2, B3, B4, B5, B6, B7, B8, B9, B10 positive pole, the charging electricity at detection battery chip B1 two ends
Press and detect circuit for the 1st charging voltage, the 1st charging voltage detection circuit includes resistance R20, R50, model in higher sensitivity
For S8261-G2N (U20A) voltage detecting IC, electric capacity C20, PNP type triode Q30；First battery chip B1 positive pole B1+
Connected with resistance R20, resistance R20 output end is connected with S8261-G2N (U20A) 5 pin and electric capacity C20 one end respectively,
The electric capacity C20 other end is connected with S8261-G2N (U20A) 6 pin and the first battery chip B1 negative pole B- respectively,
S8261-G2N (U20A) 3 pin are connected with the base stage after resistance R50 series connection again with PNP type triode Q30, PNP type triode
Q30 radio pole is connected with the first battery chip B1 positive pole B1+, the PNP type triode Q30 charging electricity of current collection the extremely the 1st
Whether the logic output terminal of pressure detection circuit, the charging for judging the first battery chip B1 by its logic output result occurs
It is abnormal, if the first battery chip B1 chargings are abnormal, S8261-G2N (U20A) 3 pin output low level, PNP type triode Q30
Conducting and its colelctor electrode output high level；If the first battery chip B1 chargings are normal, PNP type triode Q30 is not turned on.This hair
In bright embodiment, by series resistance R60, (resistance R60 is above-mentioned R to the logic output terminal of the 1st charging voltage detection circuit1
Resistance) afterwards control intelligent battery charge switch.
In case study on implementation of the present invention, detection battery chip B1 discharge voltage detects circuit for the 1st discharge voltage, and the 1st puts
Piezoelectric voltage detects that circuit and the 1st charging voltage detection circuit use same li-ion cell protection IC, and the two difference is
S8261-G2N (U20A) 1 pin is connected with the base stage after resistance R30 series connection again with PNP type triode Q20, PNP type triode
Q20 radio pole is connected with the first battery chip B1 positive pole B1+, the PNP type triode Q20 electric discharge electricity of current collection the extremely the 1st
The logic output terminal of pressure detection circuit, judges whether the first battery chip B1 electric discharge occurs different by its logic output result
Often, if the electric discharge of the first battery chip is abnormal, S8261-G2N (U20A) 1 pin output low level, PNP type triode Q20 conductings
And its colelctor electrode output high level；If the first battery chip B1 electric discharges are normal, PNP type triode Q20 is not turned on.It is of the invention real
Apply in example, by series resistance R40, (resistance R40 is above-mentioned R to the logic output terminal of the 1st discharge voltage detection circuitF1Electricity
Resistance) afterwards control intelligent battery discharge switch.
In the embodiment of the present invention, the second charging voltage detection circuit, the 3rd charging voltage detection circuit ..., N charging
Voltage detecting circuit using identical charging voltage detection circuit, or with 10 battery chip being serially connected B1, B2,
B3, B4, B5, B6, B7, B8, B9, B10 composition intelligent battery exemplified by, the 2nd, 3,4,5,6,7,8,9,10 charging voltages detection electricity
Electronic component and the connected mode all same of electronic component that road is used, are only detected with the 10th charging voltage below
Circuit is illustrated, and other charging voltage detection circuits are repeated no more.10th charging voltage detection circuit include resistance R11,
R41, voltage detecting IC (U11A), electric capacity C11, PNP type triode Q21；Voltage detecting IC (U11A) uses model
HY2110CB (U11A) IC circuits；10th battery chip B10 positive pole B10+ connects with resistance R11, resistance R11 output end
Be connected respectively with HY2110CB (U11A) 5 pin and electric capacity C11 one end, the electric capacity C11 other end respectively with HY2110CB
(U11A) 6 pin and 2 pin are connected, and electric capacity C11 negative pole, HY2110CB (U11A) 6 pin and 2 pin access the 10th battery
Chip B10 negative pole (is not i.e. drawn, battery chip B10 negative pole is with B9+ conducts in the positive pole B9+ of the 9th battery chip, figure
Major loop is connected)；HY2110CB (U11A) 3 pin are connected with the base stage after resistance R41 series connection again with PNP type triode Q21
Connect, PNP type triode Q21 radio pole is connected with the 10th battery chip B10 positive pole B10+, PNP type triode Q21 collection
Electrode is the logic output terminal that the 10th charging voltage detects circuit, and the 10th battery chip is judged by its logic output result
Charging whether there is exception.If the 10th battery chip B10 chargings are abnormal, HY2110CB (U11A) 3 pin output low level,
PNP type triode Q21 is turned on and its colelctor electrode output high level；If the 10th battery chip B10 chargings are normal, the pole of positive-negative-positive three
Pipe Q21 is not turned on.In case study on implementation of the present invention, the logic output terminal of the 10th charging voltage detection circuit passes through series resistance R51
(resistance R51 is above-mentioned RNResistance) afterwards control intelligent battery charge switch.
In case study on implementation of the present invention, the second discharge voltage detection circuit, the 3rd discharge voltage detection circuit ..., N puts
Piezoelectric voltage detection circuit use identical discharge voltage detection circuit, its electronic component used and electronic component
Connected mode all same, is only illustrated, other discharge voltages detect circuit with the 10th discharge voltage detection circuit below
Repeat no more.10th discharge voltage detects that circuit uses same li-ion cell protection IC with the 10th charging voltage detection circuit
(U11A) base stage after, HY2110CB (U11A) 1 pin is connected with resistance R21 again with PNP type triode Q11 is connected, positive-negative-positive
Triode Q11 radio pole is connected with the 10th battery chip B10 positive pole B10+, PNP type triode Q11 current collection extremely
10 discharge voltages detect the logic output terminal of circuit, and whether the electric discharge for judging the 10th battery chip by its logic output result goes out
It is now abnormal.If the 10th battery chip B10 electric discharges are abnormal, PNP type triode Q11 conductings and its colelctor electrode output high level；If
10th battery chip B10 electric discharges are normal, then PNP type triode Q11 is not turned on.In case study on implementation of the present invention, the 10th discharge voltage
By series resistance R31, (resistance R31 is above-mentioned R to the logic output terminal of detection circuitFNResistance) intelligent battery is controlled afterwards
Discharge switch.
In the embodiment of the present invention, the positive pole B10+ of the 10th battery chip of intelligent battery is the external positive pole P+ of intelligent battery,
Two groups of N-channel FETs, first group of N-channel are provided between the external negative pole P- of intelligent battery and the 1st battery chip negative pole
FET includes four N-channel FET UB, UB1, UB2, UB3 parallel with one another, and second group is N-channel FET bag
Include four N-channel FET UA, UA1, UA2, UA3 parallel with one another；N-channel FET UB, UB1, UB2, UB3 source electrode
The external negative pole P- of intelligent battery is accessed, N-channel FET UA, UA1, UA2, UA3 source electrode access the first battery
Piece B1 negative pole B-, N-channel FET UB, UB1, UB2, UB3, UA, UA1, UA2, UA3 drain electrode is connected together；1st fills
The logic output terminal of piezoelectric voltage detection circuit is sequentially connected in series diode D3, resistance R61 after being in series with resistance R60, and resistance R61 is defeated
Go out the base stage terminated into NPN type triode Q31, external the negative pole P-, N of intelligent battery are accessed in NPN type triode Q31 radio pole
Colelctor electrode of channel field-effect pipe UB, UB1, UB2, UB3 grid with NPN type triode Q31 is connected；Resistance R61's
Resistance R62 is in series between output end and NPN type triode Q31 radio pole；The logic output of 1st discharge voltage detection circuit
Connect a resistance R72 again after being in series with resistance R40 at end, resistance R72 output end access NPN type triode Q34 base stage, N
Channel field-effect pipe UA, UA1, UA2, UA3 grid access NPN type triode Q34 colelctor electrode, NPN type triode Q34's
Resistance R71 is in series between radio pole and resistance R72 output end；The external negative pole P- of intelligent battery and the first battery chip
Electric capacity C33 and electric capacity C34 parallel with one another is also associated between negative pole B-.
In the embodiment of the present invention, S8261-G2N 2 pin are used for over-current detection, S8261- in the 1st charging voltage detection circuit
G2N 2 pin by accessed after series resistance R74, R75 partial pressure N-channel FET UB, UB1, UB2, UB3, UA, UA1, UA2,
UA3 drain electrode, resistance R73 and diode D4 are also parallel between S8261-G2N 2 pin and the negative pole B- of the first battery chip,
Diode D4 positive pole accesses S8261-G2N 2 pin, and negative pole accesses the negative pole B- of the first battery chip.
In the embodiment of the present invention, intelligent battery includes the bluetooth/GPRS controls for being used to control intelligent battery to be charged and discharged
Circuit, bluetooth/GPRS control circuit includes bluetooth/GPRS module and parallel with one another diode D1 and D2, diode D1 and
D2 positive pole accesses the output end of bluetooth module；Diode D1 negative pole is connected with resistance R60 output end, diode D2
Negative pole be connected with resistance R40 output end.Bluetooth/GPRS control circuits also include resistance R67, R68, R69, R70, N ditch
Road FET Q50, NPN type triode Q33, electric capacity CA, output end access the resistance R67, resistance R67 of bluetooth/GPRS module
Output end be connected with resistance R68, electric capacity CA is connected between the negative pole of the first battery chip；Resistance R68 output termination
Enter after N-channel FET Q50 grid, N-channel FET Q50 drain series resistance R69 with NPN type triode Q33
Base stage connect, N-channel FET Q50 drain electrode is also connected by R74 with S8261-G2N 2 pin, NPN type triode Q33
Radio pole and N-channel FET Q50 source electrode access the negative pole of first battery chip, NPN type triode Q33's
Be connected between emitter-base bandgap grading and base stage resistance R70, NPN type triode Q33 collector and N-channel FET UA, UA1,
UA2, UA3 grid are connected.When Q33 base voltage is higher than conducting voltage, then colelctor electrode is with penetrating electrode conduction, so as to drag down
The grid voltage of discharge control terminal metal-oxide-semiconductor, reaches secondary overcurrent protection.
In case study on implementation of the present invention, the intelligent battery is N-channel FET using the 7th battery chip therein
UB, UB1, UB2, UB3, UA, UA1, UA2, UA3 provide power supply, and the cathode series resistance R65 of the 7th battery chip is followed by
Enter after N-channel FET UA, UA1, UA2, UA3 grid, the output end series resistance R66 of the resistance R65 with described
The negative pole of one battery chip is connected；Access N-channel effect after the positive pole of 7th battery chip is also connected with resistance R64
Should pipe UB, UB1, UB2, UB3 grid, with first battery chip after the output end series resistance R63 of the resistance R64
Negative pole is connected.
In the embodiment of the present invention, as shown in figure 1, intelligent battery also includes being arranged on the of the first battery chip two ends
One equalizing circuit, the second equalizing circuit for being arranged on the second battery chip two ends ... and be arranged on N electricity
The N equalizing circuits at chamber chip two ends, first the second equalizing circuit of equalizing circuit ..., N equalizing circuits be identical electricity
Road, equally using the intelligent battery of 10 battery chips being serially connected B1, B2, B3, B4, B5, B6, B7, B8, B9, B10 composition as
Example, due to first and second ..., ten equalizing circuits using electronic component and electronic component connected mode all same, only
Only the tenth equalizing circuit explanation exemplified by, other equalizing circuits are repeated no more, the tenth equalizing circuit include resistance R1, resistance RX1,
Resistance RX11, P-channel field-effect transistor (PEFT) pipe Q1, voltage detecting IC (U1A), electric capacity C1, voltage detecting IC (U1A) model
After HY2213AB3B, the positive pole B10+ series resistances R1 of the tenth battery chip respectively with HY2213AB3B 2 pin and electric capacity C1
One end is connected, and the electric capacity C1 other end and HY2213AB3B 3 pin access the tenth battery chip B10 negative pole the (the i.e. the 9th
Do not drawn in the positive pole of battery chip, figure, battery chip B10 negative pole is connected with B9+ as major loop),
HY2213AB3B 6 pin access P-channel field-effect transistor (PEFT) pipe Q1 grid, P-channel field-effect transistor (PEFT) pipe Q1 source electrodes and the tenth battery chip
Positive pole B10+ is connected, and is in series between P-channel field-effect transistor (PEFT) pipe Q1 drain electrode and the tenth battery chip B10 negative pole parallel with one another
Resistance RX1 and resistance RX11.When voltage detecting IC (U1A) voltages for detecting the tenth battery chip reach balanced cut-in voltage
When, the P-channel field-effect transistor (PEFT) pipe Q1 switches in the tenth equalizing voltage are opened, and are discharged by resistance RX1 and resistance RX11, no
Then, P-channel field-effect transistor (PEFT) pipe Q1 switches are not opened.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention
Limitation, makes the appropriate adjustments and optimization and upgrading according to actual needs, other any Spirit Essences and principle for not running counter to the present invention
Lower made change, modification, replacement, combination, simplification, should be equivalent substitute mode, be included in the protection model of the present invention
Within enclosing.
Claims (19)
1. a kind of intelligent battery, the intelligent battery include being serially connected the first battery chip, the second battery chip ..., N
Battery chip, the cathode voltage highest of the N battery chips, it is characterised in that the intelligent battery also includes being arranged on institute
State being used to detect the first charging voltage detection circuit of the first battery chip charging voltage, setting for the first battery chip two ends
Put the second charging voltage detection for being used to detect the second battery chip charging voltage at the second battery chip two ends
Circuit ... and it is arranged on the N for being used to detect the N battery chip charging voltages at the N battery chips two ends
Charging voltage detects circuit；The logic output terminal series connection R of the N charging voltages detection circuitNWith next stage after resistance
The logic output terminal of N-1 charging voltages detection circuit is connected, the logic output terminal string of N-1 charging voltages detection circuit
Join RN-1After resistance with next stage N-2 charging voltages detect circuit logic output terminal be connected ..., second charging electricity
The logic output terminal series connection R of pressure detection circuit2The logic output terminal phase of circuit is detected after resistance with first charging voltage
Connection, first charging voltage detect the logic output terminal and R of circuit1Resistance is in series；Pass through the R1Resistance is patrolled
Volume output result judge first battery chip, the second battery chip ..., N battery chips whether charge exception, if
First battery chip, the second battery chip ..., N battery chips bulk charge it is normal, then the R1The logic of resistance
Output end is not exported；If first battery chip, the second battery chip ..., any one in N battery chips or
There is charging exception in the multiple battery chips of person, then the R1The logic output terminal of resistance has output, and controls the intelligence electricity
The charge switch in pond disconnects.
2. intelligent battery according to claim 1, it is characterised in that the R1Resistance, R2Resistance ..., RN-1
Resistance, RNResistance is resistance identical resistance.
3. intelligent battery according to claim 1, it is characterised in that the intelligent battery also includes being arranged on described first
First discharge voltage for being used to detect the first battery chip discharge voltage at battery chip two ends detects circuit, is arranged on institute
State the second discharge voltage detection electricity for being used to detect the second battery chip discharge voltage at the second battery chip two ends
Road ... and be arranged on the N battery chips two ends be used for detect that the N of the N battery chip discharge voltages is put
Piezoelectric voltage detects circuit；The logic output terminal series connection R of the N discharge voltages detection circuitFNWith next stage N-1 after resistance
The logic output terminal of discharge voltage detection circuit is connected, the logic output terminal series connection of N-1 discharge voltages detection circuit
RFN-1After resistance with next stage N-2 charging voltages detect circuit logic output terminal be connected ..., the second discharge voltage
Detect the logic output terminal series connection R of circuitF2The logic output terminal for detecting circuit with first discharge voltage after resistance is connected
Connect, first discharge voltage detect circuit logic output terminal and RF1Resistance is in series；Pass through the RF1Resistance is patrolled
Volume output result judge first battery chip, the second battery chip ..., N battery chips whether discharge exception, if
First battery chip, the second battery chip ..., N battery chips discharge normally, then the RF1The logic of resistance
Output end is not exported；If first battery chip, the second battery chip ..., any one in N battery chips or
There is electric discharge exception in the multiple battery chips of person, then the RF1The logic output terminal of resistance has output, and controls the intelligence electricity
The discharge switch in pond disconnects.
4. intelligent battery according to claim 3, it is characterised in that the RF1Resistance, RF2Resistance ...,
RFN-1Resistance, RFNResistance is resistance identical resistance.
5. intelligent battery according to claim 3, it is characterised in that the first charging voltage detection circuit includes resistance
R20, R50, model S8261-G2N in higher sensitivity li-ion cell protection IC, electric capacity C20, PNP type triode Q30；It is described
The positive pole of first battery chip is connected with the resistance R20, the output end of the resistance R20 respectively with S8261-G2N 5 pin and
One end of the electric capacity C20 is connected, the other end of the electric capacity C20 and S8261-G2N 6 pin and the first battery chip it is negative
Pole is connected, and 3 pin of the S8261-G2N are connected with the base stage after resistance R50 series connection again with the PNP type triode Q30,
The emitter stage of the PNP type triode Q30 is connected with the positive pole of first battery chip, the PNP type triode Q30's
Extremely described first charging voltage of current collection detects the logic output terminal of circuit, and first electricity is judged by its logic output result
Whether the charging of chamber chip there is exception, if first battery chip charging is abnormal, the PNP type triode Q30 conductings
And its colelctor electrode output high level；If the first battery chip charging is normal, the PNP type triode Q30 is not turned on.
6. intelligent battery according to claim 5, it is characterised in that the first discharge voltage detection circuit is with described the
One charging voltage detection circuit use same li-ion cell protection IC, 1 pin of the S8261-G2N connected with resistance R30 after again
It is connected with PNP type triode Q20 base stage, the radio pole of the PNP type triode Q20 and first battery chip are just
Pole is connected, and extremely described first discharge voltage of current collection of the PNP type triode Q20 detects the logic output terminal of circuit, leads to
Cross its logic output result and judge whether the electric discharge of first battery chip exception occurs, if first battery chip discharges
Abnormal, then the PNP type triode Q20 is turned on and its colelctor electrode output high level；If the first battery chip electric discharge is normal,
Then the PNP type triode Q20 is not turned on.
7. intelligent battery according to claim 3, it is characterised in that the second charging voltage detection circuit, the 3rd fill
Piezoelectric voltage detection circuit ..., N charging voltages detection circuit is using identical charging voltage detection circuit；Described second
Discharge voltage detection circuit, the 3rd discharge voltage detection circuit ..., N discharge voltages detection circuit put using identical
Piezoelectric voltage detects circuit.
8. intelligent battery according to claim 7, it is characterised in that the intelligent battery include 10 or 13 or
16 or 20 battery chips being serially connected of person.
9. intelligent battery according to claim 7, it is characterised in that the N charging voltages detection circuit includes resistance
R11, R41, li-ion cell protection IC, electric capacity C11, PNP type triode Q21；The li-ion cell protection IC uses model
HY2110CB IC circuits；The positive pole of the N battery chips is connected with the resistance R11, the output end point of the resistance R11
It is not connected with HY2110CB 5 pin and one end of the electric capacity C11, the other end of the electric capacity C11, HY2110CB 6 pin
Negative pole with 2 pin with the N battery chips is connected, 3 pin of the HY2110CB connected with resistance R41 after again with it is described
PNP type triode Q21 base stage is connected, the radio pole of the PNP type triode Q21 and the positive pole of the N battery chips
It is connected, the extremely described N charging voltages of current collection of the PNP type triode Q21 detect the logic output terminal of circuit, by it
Logic output result judges whether the charging of the N battery chips exception occurs.
10. intelligent battery according to claim 9, it is characterised in that if N battery chips charging is abnormal, institute
State PNP type triode Q21 conductings and its colelctor electrode output high level；If the N battery chips charging is normal, the PNP
Type triode Q21 is not turned on.
11. intelligent battery according to claim 9, it is characterised in that the N discharge voltages detection circuit is with described the
N charging voltages detection circuit use same li-ion cell protection IC, 1 pin of the HY2110CB connected with resistance R21 after again with
PNP type triode Q11 base stage is connected, the radio pole of the PNP type triode Q11 and the positive pole of the N battery chips
It is connected, the extremely described N discharge voltages of current collection of the PNP type triode Q11 detect the logic output terminal of circuit, by it
Logic output result judges whether the electric discharge of the N battery chips exception occurs.
12. intelligent battery according to claim 11, it is characterised in that if N battery chips electric discharge is abnormal, institute
State PNP type triode Q11 conductings and its colelctor electrode output high level；If the N battery chips electric discharge is normal, the PNP
Type triode Q11 is not turned on.
13. intelligent battery according to claim 12, it is characterised in that the positive pole of the intelligent battery N battery chips
For the external positive pole of the intelligent battery, two groups are provided between the external negative pole of the intelligent battery and the first battery chip negative pole
N-channel FET, first group of N-channel FET include four N-channel FET UB parallel with one another, UB1, UB2,
UB3, second group is that N-channel FET includes four N-channel FET UA, UA1, UA2, UA3 parallel with one another；The N
Channel field-effect pipe UB, UB1, UB2, UB3 source electrode access the external negative pole of the intelligent battery, the N-channel field-effect
Pipe UA, UA1, UA2, UA3 source electrode access the negative pole of first battery chip, the N-channel FET UB, UB1,
UB2, UB3, UA, UA1, UA2, UA3 drain electrode are connected together；
The logic output terminal and R60 resistance of first charging voltage detection circuit be sequentially connected in series after being in series diode D3,
Resistance R61, the base stage of the resistance R61 output ends access NPN type triode Q31, the radio pole of the NPN type triode Q31
The external negative pole of the intelligent battery is accessed, described N-channel FET UB, UB1, UB2, UB3 grid access NPN type three
Pole pipe Q31 colelctor electrode；Resistance R62 is in series between the output end of the resistance R61 and NPN type triode Q31 radio pole；
The logic output terminal of first discharge voltage detection circuit is connected a resistance R72, institute again after being in series with R40 resistance
State resistance R72 output end access NPN type triode Q34 base stage, described N-channel FET UA, UA1, UA2, UA3 grid
Extremely equal access NPN type triode Q34 colelctor electrode, the radio pole of the NPN type triode Q34 and resistance R72 output end it
Between be in series with resistance R71；
Electric capacity C33 and electricity parallel with one another is also associated between the external negative pole of the intelligent battery and the first battery chip negative pole
Hold C34.
14. intelligent battery according to claim 13, it is characterised in that the electricity in the first charging voltage detection circuit
Pressure detection IC uses model S8261-G2N IC circuits, and 2 pin of the S8261-G2N are used for over-current detection, the S8261-
Described N-channel FET UB, UB1, UB2, UB3, UA, UA1, UA2, UA3 are accessed after G2N 2 pin series resistances R74, R75
Drain electrode, is also parallel with resistance R73 and diode D4 between 2 pin of the S8261-G2N and the negative pole of the first battery chip, described
Diode D4 positive pole accesses S8261-G2N 2 pin, and negative pole accesses the negative pole of first battery chip.
15. intelligent battery according to claim 14, it is characterised in that the intelligent battery includes being used to control intelligent electricity
The bluetooth that pond is charged and discharged/GPRS control circuits, the bluetooth/GPRS control circuits include bluetooth/GPRS module, Yi Jixiang
Mutual diode D1 and D2 in parallel, the positive pole of the diode D1 and D2 access the output end of the bluetooth module；Described two
Pole pipe D1 negative pole is connected with the output end of the R60 resistance, negative pole and the R40 resistance of the diode D2
Output end is connected.
16. intelligent battery according to claim 15, it is characterised in that the bluetooth/GPRS control circuits also include electricity
R67, R68, R69, R70, N-channel FET Q50, NPN type triode Q33, electric capacity CA are hindered, the bluetooth/GPRS module
Output end accesses resistance R67, and the output end of the resistance R67 is connected with resistance R68, with the negative pole of first battery chip it
Between be connected with electric capacity CA；The output end access N-channel FET Q50 of resistance R68 grid, the N-channel field-effect
Connect after pipe Q50 drain series resistance R69 with NPN type triode Q33 base stage, the drain electrode of the N-channel FET Q50
Also connected by R74 with S8261-G2N 2 pin, the radio pole of the NPN type triode Q33 and N-channel FET Q50's
Source electrode accesses the negative pole of first battery chip, and electricity is connected between the radio pole of the NPN type triode Q33 and base stage
R70 is hindered, the colelctor electrode of the NPN type triode Q33 is connected with N-channel FET UA, UA1, UA2, UA3 grid, when
Q33 base voltage is higher than conducting voltage, then colelctor electrode is with penetrating electrode conduction, thus drag down N-channel FET UB, UB1,
UB2, UB3 grid voltage, reach secondary overcurrent protection.
17. intelligent battery according to claim 16, it is characterised in that the intelligent battery utilizes the 7th battery chip
Power supply, the positive pole of the 7th battery chip are provided for N-channel FET UB, UB1, UB2, UB3, UA, UA1, UA2, UA3
N-channel FET UA, UA1, UA2, UA3 grid, the output end series electrical of the resistance R65 are accessed after series resistance R65
It is connected after resistance R66 with the negative pole of first battery chip；The positive pole of 7th battery chip is also connected with resistance R64
With institute after access N-channel FET UB, UB1, UB2, UB3 grid afterwards, the output end series resistance R63 of the resistance R64
The negative pole for stating the first battery chip is connected.
18. intelligent battery according to claim 1, it is characterised in that the intelligent battery also includes being arranged on described the
First equalizing circuit at one battery chip two ends, the second equalizing circuit for being arranged on the second battery chip two ends ..., with
And it is arranged on the N equalizing circuits at the N battery chips two ends.
19. intelligent battery according to claim 1, it is characterised in that the balanced electricity of the first equalizing circuit second
Road ..., N equalizing circuits be identical circuit.
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|---|---|---|---|
| CN201720946307.XU CN207353860U (en) | 2017-07-31 | 2017-07-31 | A kind of intelligent battery |
| CN201710643130.0A CN107221998A (en) | 2017-07-31 | 2017-07-31 | A kind of intelligent battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720946307.XU CN207353860U (en) | 2017-07-31 | 2017-07-31 | A kind of intelligent battery |
| CN201710643130.0A CN107221998A (en) | 2017-07-31 | 2017-07-31 | A kind of intelligent battery |
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| CN107221998A true CN107221998A (en) | 2017-09-29 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1655416A (en) * | 2004-02-10 | 2005-08-17 | 深圳市鑫汇科电子有限公司 | Method for protecting series lithium cells and circuit thereof |
| JP2008199827A (en) * | 2007-02-14 | 2008-08-28 | Matsushita Electric Works Ltd | Battery pack |
| CN101534017A (en) * | 2008-01-02 | 2009-09-16 | 何岳明 | Charge-discharge protection circuit for a plurality of lithium batteries |
| CN207353860U (en) * | 2017-07-31 | 2018-05-11 | 严崇 | A kind of intelligent battery |
-
2017
- 2017-07-31 CN CN201720946307.XU patent/CN207353860U/en active Active
- 2017-07-31 CN CN201710643130.0A patent/CN107221998A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1655416A (en) * | 2004-02-10 | 2005-08-17 | 深圳市鑫汇科电子有限公司 | Method for protecting series lithium cells and circuit thereof |
| JP2008199827A (en) * | 2007-02-14 | 2008-08-28 | Matsushita Electric Works Ltd | Battery pack |
| CN101534017A (en) * | 2008-01-02 | 2009-09-16 | 何岳明 | Charge-discharge protection circuit for a plurality of lithium batteries |
| CN207353860U (en) * | 2017-07-31 | 2018-05-11 | 严崇 | A kind of intelligent battery |
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