CN109888875A - A kind of battery protection and management of charging and discharging system architecture - Google Patents
A kind of battery protection and management of charging and discharging system architecture Download PDFInfo
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- CN109888875A CN109888875A CN201910200528.6A CN201910200528A CN109888875A CN 109888875 A CN109888875 A CN 109888875A CN 201910200528 A CN201910200528 A CN 201910200528A CN 109888875 A CN109888875 A CN 109888875A
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Abstract
The invention discloses a kind of battery protections and management of charging and discharging system architecture, comprising: regulating circuit, control circuit, to charge-discharge battery；Power supply side is electrically connected with regulating circuit；Regulating circuit is electrically connected with control circuit and to charge-discharge battery both ends respectively；The control circuit judgement charging and discharging state to charge-discharge battery; and according to charging and discharging state, the voltage of the power supply side; and the current voltage value to charge-discharge battery adjusts the regulating circuit; it is further different according to the positive and negative anodes protection control terminal being arranged in the charging and discharging control system, and corresponding battery charging and discharging and protection structure are constructed to the regulating circuit.In this application, it solves in the prior art due to being electrically connected in control circuit using multiple switch pipe, causes that power consumption is excessive and the problem of circuit structure complexity.
Description
Technical field
The present invention relates to power supply power supply technical field more particularly to a kind of battery protection and management of charging and discharging system architectures.
Background technique
Can charge-discharge battery group in supplying power for outside by it is all can charge-discharge battery discharge together, when charging is also whole
Charge, due to can charge-discharge battery individuation difference so that part can charge-discharge battery be overcharged, partially can charge and discharge
Battery is by overdischarge, if cannot find in time, it will greatly reduce can charge-discharge battery service life, making can charge and discharge
Battery pack is scrapped in advance, causes very big waste.Therefore, general to be both provided with control circuit etc. in charge-discharge battery group, into
Row protection control, it is existing can charge-discharge battery management circuit in, it usually needs charging circuit, discharge circuit and battery
Protect circuit, in past scheme, this three be it is separated, cause circuit structure not optimize, at high cost, circuit loss is big；
With reference to shown in Figure 13；Current battery management legacy mode needs six switch MOS and two inductance to realize to battery core
Charging, electric discharge and defencive function, structure is complicated, at high cost.And once design is completed, charging DC/DC and electric discharge DC/
The boosting of DC or decompression operating mode are also just fixed up, and are unable to flexible configuration.In entire charge or discharge circuit, meeting
See three MOS switches and an inductance series connection, increase series impedance, also increases loss, low efficiency, calorific value height.
Based on the technical problem present on, this application provides the technical solutions for solving the above technical problem.
Summary of the invention
The object of the present invention is to provide a kind of battery protection and management of charging and discharging system architecture, only need to lead in this application
The technical solution of the prior art can be realized by crossing 4 switching tubes, solve the problems, such as that power consumption is excessive, while solving due to opening
The excessively high problem of cost caused by closing pipe excessively.
Technical solution provided by the invention is as follows:
A kind of battery protection and management of charging and discharging system architecture, comprising: regulating circuit, control circuit；Power supply side with
Regulating circuit electrical connection；Regulating circuit is electrically connected with control circuit and to charge-discharge battery both ends respectively；The control circuit
The judgement charging and discharging state to charge-discharge battery, and according to charging and discharging state, the voltage of the power supply side, Yi Jisuo
It states and adjusts the regulating circuit to the current voltage value of charge-discharge battery, further according to the charging and discharging control system
The positive and negative anodes protection control terminal of middle setting is different, and constructs corresponding battery charging and discharging and protection structure to the regulating circuit.
It is further preferred that including: that the regulating circuit is opened by 4 switching tube first switch tubes, second switch, thirds
Guan Guan, the 4th switching tube and 1 inductance composition；The correspondence control terminal of 4 switching tubes is electric with the control circuit respectively
Connection；One end of the public connecting end and inductance of first switch tube and second switch connects；Third switching tube and the 4th switch
The public connecting end of pipe and the other end of inductance connect；And by the control circuit, the first switch tube, described are controlled
The working condition of two switching tubes, the third switching tube and the 4th switch, adjusts the battery charging and discharging, Yi Jibao
Protect control structure.
In this application, it solves in the prior art due to being attached in control circuit using multiple switch pipe, makes
At power consumption is excessive and the problem of circuit structure complexity；It only needs to realize by 4 switching tubes in this application existing
The technical solution of technology solves the problems, such as that power consumption is excessive, while it is excessively high to solve the cost as caused by switching tube is excessive
Problem；Make the more reliable and more stable of its control system, reduce power consumption, service life will be increased from another point of view.
It is further preferred that including: when charge-discharge battery is charged state；Judge the power supply at power supply side both ends
Whether voltage is greater than the voltage rating to charge-discharge battery both ends；When being greater than, the regulating circuit is adjusted as decompression charging mould
Formula；It specifically include: that the first switch tube, the second switch and the inductance constitute buck configuration, by described
The control information that control circuit is sent controls the buck configuration, is depressured to the supply voltage at the power supply side both ends
Processing, and will charge to described to charge-discharge battery after input voltage decompression；When using the battery charging and discharging control
When the positive terminal of system processed protects structure, normally on, the 4th switch setting are in when the third switching tube charges
For normal off open state；The first switch and third switch simultaneously turn off to be formed it is described to charge-discharge battery and the power supply
The two-way blocking-up structure of feeder ear；When protecting structure using the negative pole end of the charging and discharging control system, the third
Switching tube is in normal off open state, and when four switched charge is set as normally on；The second switch and described
Four switches simultaneously turn off the two-way blocking-up structure to be formed Suo Shu to charge-discharge battery and the power supply side.
It is further preferred that including: when charge-discharge battery is charged state；Judge the power supply at power supply side both ends
Whether voltage is greater than the voltage rating to charge-discharge battery both ends；When being not more than, adjusting the regulating circuit is boost charge
Mode；Specifically include: that the inductance, the third switching tube and the 4th switching tube constitute boost configuration, passes through institute
The control information for stating control circuit transmission controls the boost configuration, rises to the supply voltage at the power supply side both ends
Pressure processing, and will charge to described to charge-discharge battery after input voltage boosting；When using the battery charging and discharging
When the positive terminal of control system protects structure, normally on, and the second switch are in when the first switch tube charges
It is set as normal off open state；The first switch and third switch simultaneously turn off to be formed it is described to charge-discharge battery with it is described
The two-way blocking-up structure of power supply side；It is described when protecting structure using the negative pole end of the charging and discharging control system
First switch tube is in normal off open state, and is set as normally on when second switch charging；The second switch and
4th switch simultaneously turns off the two-way blocking-up structure to be formed Suo Shu to charge-discharge battery and the power supply side.
It is further preferred that including: when charge-discharge battery is discharge condition；Judgement is described to charge-discharge battery both ends
Voltage whether be greater than the voltage at the power supply side both ends；
When being greater than, adjusting the regulating circuit is step-down discharge mode；It specifically include: the inductance, the third
Switching tube and the 4th switching tube constitute step-down discharge structure, control institute by the control information that the control circuit is sent
Step-down discharge structure is stated, decompression processing is carried out to the voltage to charge-discharge battery both ends, and load in the power supply power supply
End；When protecting structure using the positive terminal of the charging and discharging control system, in normal when the first switch tube discharge
On state, the second switch are set as normal off open state；And the first switch and third switch simultaneously turn off shape
At the two-way blocking-up structure to charge-discharge battery and the power supply side；When using the charging and discharging control system
Negative pole end when protecting structure, the first switch tube be in normal off open state, and is set as normal when second switch electric discharge
On state；The second switch and the 4th switch simultaneously turn off to be formed it is described to charge-discharge battery and the power supply power supply
The two-way blocking-up structure at end.
It is further preferred that including: when charge-discharge battery is discharge condition；Judgement is described to charge-discharge battery both ends
Voltage whether be greater than the voltage at the power supply side both ends；When being not more than, adjusting the regulating circuit is step-up discharge
Mode；Specifically include: that the inductance, the first switch tube and the second switch constitute step-up discharge structure, leads to
It crosses the control information that the control circuit is sent and controls the step-up discharge structure, to described to the output of charge-discharge battery both ends
Discharge voltage carries out boosting processing, and loads in the power supply side；When using the charging and discharging control system just
When extreme protection structure, the third is in normally on when switching tube discharge, and the 4th switch is set as normal off and opens
State；The first switch and third switch simultaneously turn off to be formed it is described to charge-discharge battery and the power supply side
Two-way blocking-up structure；When protecting structure using the negative pole end of the charging and discharging control system, at the third switching tube
Normally on is set as in normal off open state, and when four switch discharge；The second switch and the 4th switch
Simultaneously turn off the two-way blocking-up structure to be formed Suo Shu to charge-discharge battery and the power supply side.
It is further preferred that the control circuit includes: signal feedback selector, error amplifier, PWM modulator, inspection
Survey signal comparator, model selection comparator, logic control circuit and decoder；The signal feedback selector with it is described
The input terminal of error amplifier is electrically connected；The signal input part of the output end of the error amplifier and PWM modulator electricity
Connection；Inductive current output end to be detected is electrically connected with the signal input part of PWM modulator；The signal tune of the PWM modulator
Control output end is electrically connected with the logic control circuit；The input termination detection signal of the detection signal comparator, the inspection
The output end for surveying signal comparator is electrically connected with the logic control circuit signal input part, and the logic control circuit is defeated
Outlet is electrically connected with the regulating circuit；Model selection comparator access respectively with the test side of the power supply side with
And it is described to the electrical connection of charge-discharge battery test side, the signal of the output end and the decoder of the model selection comparator is defeated
Enter end electrical connection；The signal output end of the decoder is electrically connected with the logic control circuit signal control terminal.
It is further preferred that including: that detection signal inputs output comparison result via after the detection signal comparator
To the logic control circuit；And pass through the decoder selection charging and discharging state and lifting pressing mold to charge-discharge battery
Formula, and the logic control circuit is sent to for charging and discharging state and buck-boost mode to charge-discharge battery by described；It is described to patrol
The working condition that control circuit controls the switching tube in the regulating circuit is collected, the PWM modulator is anti-by error amplifier
The detection information and the inductive current detection information of feedback, and regulate and control the duty ratio of the PWM wave of output, and then control institute
State the voltage and supply current to charge-discharge battery both end voltage and charging current and the power supply power supply both ends.
A kind of single inductive battery charging of four novel switches, electric discharge and the three-in-one frame of battery protection are devised in the present invention
Structure, the work switched by control circuit flexible configuration four may be implemented decompression and fills decompression and put, and decompression is filled boosting and put, and boost
It fills decompression to put, boosting is filled boosting and put and battery protection.
A kind of battery protection provided by the invention and a kind of battery protection of management of charging and discharging system architecture and management of charging and discharging
System architecture, beneficial effect are as follows:
1, it in the present invention, constructs novel voltage regulator control circuit and has the advantages of simple structure and easy realization, install more convenient.
2, in the present invention, compared with prior art, less component has been used, the function of the prior art may be implemented in component
Can, while also further save the cost；On the other hand power consumption is reduced, service life is increased.
It 3, compared with prior art, can be by controlling not in the case where not changing external circuit structure in the present invention
With operating mode realize that decompression is filled decompression and put, decompression is filled boosting and is put, and boosting is filled decompression and put, and boosting fills that boosting is put and battery is protected
Shield, improves the adaptability of system.
Detailed description of the invention
Below by clearly understandable mode, preferred embodiment is described with reference to the drawings, to a kind of battery protection and charge and discharge
Above-mentioned characteristic, technical characteristic, advantage and its implementation of electric management system framework are further described.
Fig. 1 is the structure chart of one embodiment of battery protection of the present invention and management of charging and discharging system architecture；
Fig. 2 is the structure chart of another embodiment of battery protection of the present invention and management of charging and discharging system architecture；
Fig. 3 is the structure chart of another embodiment of battery protection of the present invention and management of charging and discharging system architecture；
Fig. 4 is the structure chart of another embodiment of battery protection of the present invention and management of charging and discharging system architecture；
Fig. 5 is the structure chart of another embodiment of battery protection of the present invention and management of charging and discharging system architecture；
Fig. 6 is the structure chart of another embodiment of battery protection of the present invention and management of charging and discharging system architecture；
Fig. 7 is the structure chart of another embodiment of battery protection of the present invention and management of charging and discharging system architecture；
Fig. 8 is the structure chart of another embodiment of battery protection of the present invention and management of charging and discharging system architecture；
Fig. 9 is the structure chart of another embodiment of battery protection of the present invention and management of charging and discharging system architecture；
Figure 10 is the structure chart of another embodiment of battery protection of the present invention and management of charging and discharging system architecture；
Figure 11 is the structure chart of another embodiment of battery protection of the present invention and management of charging and discharging system architecture；
Figure 12 is the structure chart of another embodiment of battery protection of the present invention and management of charging and discharging system architecture；
Figure 13 is the structure chart of another embodiment of battery protection of the present invention and management of charging and discharging system architecture；
Figure 14 is the structure chart of the prior art of the present invention.
Specific embodiment
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, Detailed description of the invention will be compareed below
A specific embodiment of the invention.It should be evident that drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, and obtain other embodiments.
To make simplified form, part related to the present invention is only schematically shown in each figure, their not generations
Its practical structures as product of table.
As shown in Figure 1, the application provides one embodiment of a kind of battery protection and management of charging and discharging system architecture, packet
It includes: regulating circuit, control circuit；Power supply side is electrically connected with regulating circuit；Regulating circuit respectively with power supply side, control
Circuit and to charge-discharge battery both ends be electrically connected；Control circuit judges the charging and discharging state to charge-discharge battery, and according to filling
The voltage of discharge condition, power supply side, and to the current voltage value adjustment regulating circuit of charge-discharge battery, further root
It is different according to the positive and negative anodes protection control framework being arranged in charging and discharging control system, and corresponding battery is constructed to regulating circuit
Charge and discharge and protection structure.
Preferably, regulating circuit is by 4 switching tube first switch tubes, second switch, third switching tube, the 4th switching tube
And 1 inductance composition；The correspondence control terminal of 4 switching tubes is electrically connected to the control circuit respectively；First switch tube and the
The public connecting end of two switching tubes and one end of inductance connect；The public connecting end and inductance of third switching tube and the 4th switching tube
The other end connection；And by the control circuit, controls the first switch tube, the second switch, the third and open
The working condition of Guan Guan and the 4th switch adjust the battery charging and discharging and protection control structure.
Specifically, in the present invention, in based on the control system in the prior art for rechargeable battery, from hardware configuration
On say, referring to Figure 13 be the prior art；3 parts are traditionally arranged to be, charge DC/DC converter, battery protection switch, and discharge DC/
DC converter, structure is complicated for this setup, and cost is relatively high；In entire charge or discharge circuit, need to be related to three
MOS switch and an inductance series connection, increase series impedance, also increase loss, low efficiency, calorific value height.In order to overcome
Above-mentioned problem carries out design again to it in the application, on the one hand can be to battery charging and discharging management；On the other hand it is meeting
It is under-voltage to battery over-voltage, when overcurrent etc. is abnormal, the conservative management to battery can be realized by switch cutoff current loop；Together
When can be used connection anode switch carry out positive terminal protection, also can be used connection battery cathode switch born
Extreme protection.It referring to figure 1 and figure 2, include 4 kinds of operating modes, referring to Fig. 3-Figure 10 in the charge-discharge system of battery
It is shown；Be depressured charging, boost charge, step-down discharge and step-up discharge etc., pass through in the application 4 switching tube S11, S12,
S21, S22 and 1 inductance L1 constitute the regulating circuit of charge and discharge；First switch tube, second switch, third are opened in this application
Guan Guan, the 4th switching tube respectively correspond 4 switching tubes S11, S12, S21, S22 in circuit diagram, realize by control circuit
The charge and discharge control and positive and negative extreme control for treating charge-discharge battery are protected, and over-voltage, overcurrent and under-voltage phenomenon are prevented
Generation.Therefore the voltage in this application according to the voltage at power supply side both ends difference, and to charge and discharge battery both ends is not
Together, corresponding operating mode is selected, and the control of positive and negative anodes is protected.Each electronic component is according to making in this application
Demand in carries out the adjustment of adaptability under conditions of meeting performance parameter；Switching tube can be triode or MOS
Pipe or IGBT etc..
In this application, it solves in the prior art due to being opened with conservative management circuit using multiple in battery charging and discharging
It closes pipe to be attached, causes that power consumption is excessive and the problem of circuit structure complexity；It only needs to switch by 4 in this application
Pipe can realize the technical solution of the prior art, while solve the problems, such as that power consumption is excessive, as switching tube it is excessive caused by
The excessively high problem of cost；Make the more reliable and more stable of its control system, reduce power consumption, will increase using the longevity from another point of view
Life.
The present invention also provides one embodiment, with reference to shown in Fig. 3 and Fig. 4；Including: ought be charged state to charge-discharge battery
When；Judge whether the supply voltage at power supply side both ends is greater than the voltage rating to charge-discharge battery both ends；When being greater than, adjust
Whole regulating circuit is decompression charge mode；It specifically include: that first switch tube, second switch, the are controlled by control circuit
The working condition of three switching tubes, the 4th switch；First switch tube, second switch and inductance constitute decompression DC/DC structure, lead to
The control information control decompression DC/DC structure for crossing control circuit transmission, is depressured the supply voltage at power supply side both ends
Processing, and treat charge-discharge battery after input voltage is depressured and charge；When using positive terminal protection structure, third switch
Pipe is in normally in charging, and the 4th switch is set as normal off open state；When using negative pole end protection structure, the
Three switching tubes are in normal off open state, and the 4th switch is set as normally in charging.
Specifically, the present embodiment is decompression charge mode；With reference to shown in Fig. 3 and Fig. 4；The voltage at power supply side both ends
VA-VB, the voltage VcellA-VcellB to charge-discharge battery both ends；Particularly pass through decompression DC/DC charging, S11 and S12
Form decompression DC/DC construction of switch；When using positive terminal protection structure, S21 is connected often in charging, and as defencive function
When S11 and S21 turn off together realize VcellA and VA two-way blocking-up；S22 is in normal off open state.
When using negative pole end protection structure, S22 is connected often in charging, and S12 and S22 is together when as defencive function
The two-way blocking-up of VcellB and VB is realized in shutdown；S21 is in normal off open state.
The present invention also provides one embodiment, with reference to shown in Fig. 5 and Fig. 6；Including: ought be charged state to charge-discharge battery
When；Judge whether the supply voltage at power supply side both ends is greater than the voltage rating to charge-discharge battery both ends；When being not more than,
Adjustment regulating circuit is boost charge mode；Specifically include: by control circuit, control first switch tube, second switch,
The working condition of third switching tube, the 4th switching tube；Inductance, third switching tube and the 4th switching tube constitute boosting DC/DC knot
Structure, the control information control boosting DC/DC structure sent by control circuit, carries out the supply voltage at power supply side both ends
Boosting processing, and treat charge-discharge battery after input voltage is boosted and charge；When using positive terminal protection structure, first
Switching tube is in normally in charging, and second switch is set as normal off open state；When using negative pole end protection structure
When, first switch tube is in normal off open state, and second switch is set as normally in charging.
Specifically, the present embodiment is boost charge mode；With reference to shown in Fig. 5 and Fig. 6；The voltage at power supply side both ends
VA-VB, the voltage VcellA-VcellB to charge-discharge battery both ends；Particularly pass through boosting DC/DC charging, S21 and S22
Form boosting DC/DC construction of switch；When using positive terminal protection structure, S11 is connected often in charging, and as defencive function
When S11 and S21 turn off together realize VcellA and VA two-way blocking-up；S12 is in normal off open state.
When using negative pole end protection structure, S12 is connected often in charging, and S12 and S22 is together when as defencive function
The two-way blocking-up of VcellB and VB is realized in shutdown；S11 is in normal off open state.
The present invention also provides one embodiment, with reference to shown in Fig. 7 and Fig. 8；Including: ought be discharge condition to charge-discharge battery
When；Judge the voltage for whether being greater than power supply side both ends to the voltage at charge-discharge battery both ends；When being greater than, adjustment pressure regulation electricity
Road is step-down discharge mode；It specifically include: that first switch tube, second switch, third switching tube are controlled by control circuit
And the 4th switching tube working condition；Inductance, third switching tube and the 4th switching tube constitute step-down discharge structure, pass through control
The control information that circuit processed is sent controls step-down discharge structure, and the voltage for treating charge-discharge battery both ends carries out decompression processing, and
Load is in power supply side；When using positive terminal protection structure, first switch tube is in normally on, and the in electric discharge
Two switches are set as normal off open state；When using negative pole end protection structure, first switch tube is in normal off open state, and second
Switch is set as normally in electric discharge.
Specifically, the present embodiment is step-down discharge mode；With reference to shown in Fig. 7 and Fig. 8；The voltage at power supply side both ends
VA-VB, the voltage VcellA-VcellB to charge-discharge battery both ends；Particularly pass through decompression DC/DC electric discharge, S21 and S22
Form decompression DC/DC construction of switch；When using positive terminal protection structure, S11 is connected often in electric discharge, and as defencive function
When S11 and S21 turn off together realize VcellA and VA two-way blocking-up；S12 is in normal off open state.
When using negative pole end protection structure, S12 is connected often in electric discharge, and S12 and S22 is together when as defencive function
The two-way blocking-up of VcellB and VB is realized in shutdown；S11 is in normal off open state.
The present invention also provides one embodiment, with reference to shown in Fig. 9 and Figure 10；Including: ought be electric discharge shape to charge-discharge battery
When state；Judge the voltage for whether being greater than power supply side both ends to the voltage at charge-discharge battery both ends；When being not more than, adjustment is adjusted
Volt circuit is step-up discharge mode；It specifically include: to control first switch tube, second switch, third by control circuit and open
The working condition of Guan Guan, the 4th switch；Inductance, first switch tube and second switch constitute step-up discharge DC/DC structure, lead to
The control information control step-up discharge DC/DC structure for crossing control circuit transmission, treats the electric discharge electricity of charge-discharge battery both ends output
Pressure carries out boosting processing, and loads in power supply side；When using positive terminal protection control framework, third switching tube is discharging
When be in normally on, and the 4th switch be set as normal off open state；When using negative pole end protection control framework, third is opened
It closes pipe and is in normal off open state, and the 4th switch is set as normally in electric discharge.
Specifically, the present embodiment is step-up discharge mode；With reference to shown in Fig. 9 and Figure 10；The voltage at power supply side both ends
VA-VB, the voltage VcellA-VcellB to charge-discharge battery both ends；Particularly pass through boosting DC/DC electric discharge, S11 and S12
Form boosting DC/DC construction of switch；When using positive terminal protection structure, S21 is connected often in electric discharge, and as defencive function
When S11 and S21 turn off together realize VcellA and VA two-way blocking-up；S22 is in normal off open state.
When using negative pole end protection structure, S22 is connected often in electric discharge, and S12 and S22 is together when as defencive function
The two-way blocking-up of VcellB and VB is realized in shutdown；S21 is in normal off open state.
The present invention also provides one embodiment, with reference to shown in Figure 11；Control circuit includes: signal feedback selector, error
Amplifier EA, PWM modulator, detection signal comparator (COMP1~COMP3), model selection comparator (COMP4), logic control
Circuit and decoder processed；Signal feedback selector is connect with the input terminal of error amplifier EA；The output of error amplifier EA
End is connect with the signal input part of PWM modulator；The signal input part of inductive current output end and PWM modulator to be detected is electrically connected
It connects；The signals-modulating output end of PWM modulator is electrically connected with logic control circuit；It detects signal comparator (COMP1~COMP3)
Input termination detection signal, detect signal comparator (COMP1~COMP3) output end and logic control circuit signal input
End electrical connection, and the output end of logic control circuit is electrically connected with regulating circuit；The input terminal of model selection comparator (COMP4)
Respectively with the test side of the power supply side and it is described be electrically connected to charge-discharge battery test side, model selection comparator
Output end is electrically connected with the signal input part of decoder；Signal output end and logic control circuit signal the control terminal electricity of decoder
Connection.
Preferably, comprising: output comparison result is input to logic control via after detection signal comparator by detection signal
Circuit；Power supply side selects comparator with the voltage detection signal input pattern to charge and discharge battery, model selection comparator
Output signal inputs decoder, and selects the charging and discharging state to charge-discharge battery by decoder, and will be to charge-discharge battery
Charging and discharging state be sent to logic control circuit；Logic control circuit controls the working condition of the switching tube in regulating circuit,
The feedback detection error information and inductive current detection information I_SNS that PWM demodulator is exported by error amplifier, and regulate and control defeated
The duty ratio of PWM wave out, and then control to charge-discharge battery both end voltage, and to the voltage at charge-discharge battery both ends.
Specifically, in the present embodiment, with reference to shown in Figure 11；The signal packet of the detected control of signal feedback selector selection
The voltage VA-VB for including power supply side both ends, voltage VcellA-VcellB and inductive current to charge-discharge battery both ends
I_SNS；The output signal of the inductive current and error amplifier EA that will test is sent to PWM modulator, carries out duty ratio modulation,
To the state and make-and-break time of four switching tubes of control, namely form the reasonable working condition for meeting charge and discharge regulating circuit；?
Minimum and maximum two reference signals are arranged in each detection signal comparator (COMP1~COMP3), according to charge and discharge mode
Difference will acquire detection signal and compare with maximum and minimum reference signal, and the result of comparison is input to logic control
In circuit processed, logical operation is carried out, further constructs battery protection structure, the input terminal point of model selection comparator (COMP4)
Not Jie Ru power supply side both ends voltage VA-VB and voltage VcellA-VcellB to charge-discharge battery both ends, for comparing
The size of voltage selects buck operating mode according to comparison result；If the voltage VA-VB at power supply side both ends be greater than to
When the voltage VcellA-VcellB at charge-discharge battery both ends, selection decompression charging or step-up discharge；If power supply side
The voltage VA-VB at both ends is less than when the voltage VcellA-VcellB at charge-discharge battery both ends, boost charge, or decompression is put
Electricity；And charge and discharge mode is selected by decoder, and the operating mode that will acquire is sent in logic control circuit, control pair
The switching tube answered is normally opened or normally closed and duty ratio modulation working condition, based on implementation above come battery of the invention
The charge and discharge and control of charge-discharge system are protected.
Figure 12 and Figure 13 is the structure chart for detecting the test point of signal setting in this application.
A kind of single inductive battery charging of four novel switches, electric discharge and the three-in-one frame of battery protection are devised in the present invention
Structure, the work switched by control circuit flexible configuration four may be implemented decompression and fills decompression and put, and decompression is filled boosting and put, and boost
It fills decompression to put, boosting is filled boosting and put and battery protection.
In addition, constructing 4 kinds of circuit structures and control terminal (anode in a implementation such as Fig. 3~Figure 10 of the application
And cathode) different, it is identified by the relatively heavy thick line of color.
Integrated chip, internal switch pipe can be formed in a kind of battery protection and management of charging and discharging system architecture of the application
It can be metal-oxide-semiconductor or BJT pipe etc..
It should be noted that above-described embodiment can be freely combined as needed.The above is only preferred implementations of the invention
Mode, it is noted that for those skilled in the art, without departing from the principle of the present invention, also
Several improvements and modifications can be made, these modifications and embellishments should also be considered as the scope of protection of the present invention.
Claims (8)
1. a kind of battery protection and management of charging and discharging system architecture characterized by comprising regulating circuit, control circuit, wait fill
Discharge battery；
Power supply side is electrically connected with regulating circuit；
The regulating circuit respectively with the control circuit and described be electrically connected to charge-discharge battery both ends；
The control circuit judgement charging and discharging state to charge-discharge battery, and supplied according to charging and discharging state, the power supply
The voltage at electric end and the current voltage value to charge-discharge battery adjust the regulating circuit, further according to
The positive and negative anodes protection control terminal being arranged in charging and discharging control system is different, and constructs corresponding battery to the regulating circuit
Charge and discharge and protection structure.
2. battery protection according to claim 1 and management of charging and discharging system architecture characterized by comprising
The regulating circuit is by 4 switching tube first switch tubes, second switch, third switching tube, the 4th switching tube and 1
Inductance composition；
The correspondence control terminal of 4 switching tubes is electrically connected to the control circuit respectively；
One end of the public connecting end and inductance of first switch tube and second switch connects；
Third switching tube is connect with the other end of the public connecting end of the 4th switching tube and inductance；
And by the control circuit, control the first switch tube, the second switch, the third switching tube and
The working condition of 4th switch adjusts the battery charging and discharging and protection control structure.
3. battery protection according to claim 2 and management of charging and discharging system architecture characterized by comprising
When charge-discharge battery is charged state；Judge whether the supply voltage at power supply side both ends is greater than to charge and discharge electricity
The voltage rating at pond both ends；
When being greater than, the regulating circuit is adjusted as decompression charge mode；
It specifically include: that the first switch tube, the second switch and the inductance constitute buck configuration, by described
The control information that control circuit is sent controls the buck configuration, is depressured to the supply voltage at the power supply side both ends
Processing, and will charge to described to charge-discharge battery after input voltage decompression；
When protecting structure using the positive terminal of the charging and discharging control system, in normal when the third switching tube charges
On state, the 4th switch are set as normal off open state；The first switch and third switch simultaneously turn off to be formed
The two-way blocking-up structure to charge-discharge battery and the power supply side；
When protecting structure using the negative pole end of the charging and discharging control system, the third switching tube is in normal off and opens shape
State, when four switched charge, are set as normally on；The second switch and the 4th switch simultaneously turn off to be formed
The two-way blocking-up structure to charge-discharge battery and the power supply side.
4. battery protection according to claim 2 and management of charging and discharging system architecture characterized by comprising
When charge-discharge battery is charged state；Judge whether the supply voltage at power supply side both ends is greater than to charge and discharge electricity
The voltage rating at pond both ends；
When being not more than, adjusting the regulating circuit is boost charge mode；
It specifically include: that the inductance, the third switching tube and the 4th switching tube constitute boost configuration, by described
The control information that control circuit is sent controls the boost configuration, boosts to the supply voltage at the power supply side both ends
Processing, and will charge to described to charge-discharge battery after input voltage boosting；
When protecting structure using the positive terminal of the charging and discharging control system, in normal when the first switch tube charges
On state, and the second switch is set as normal off open state；The first switch and third switch simultaneously turn off shape
At the two-way blocking-up structure to charge-discharge battery and the power supply side；
When protecting structure using the negative pole end of the charging and discharging control system, the first switch tube is in normal off and opens shape
State, and normally on is set as when second switch charging；The second switch and the 4th switch simultaneously turn off shape
At the two-way blocking-up structure to charge-discharge battery and the power supply side.
5. battery protection according to claim 2 and management of charging and discharging system architecture characterized by comprising
When charge-discharge battery is discharge condition；Whether the judgement voltage to charge-discharge battery both ends is greater than the power supply
The voltage at feeder ear both ends；
When being greater than, adjusting the regulating circuit is step-down discharge mode；
Specifically include: that the inductance, the third switching tube and the 4th switching tube constitute step-down discharge structure, passes through
The control information that the control circuit is sent controls the step-down discharge structure, to the voltage to charge-discharge battery both ends into
Row decompression processing, and load in the power supply side；
When protecting structure using the positive terminal of the charging and discharging control system, in normal when the first switch tube discharge
On state, the second switch are set as normal off open state；And the first switch and third switch simultaneously turn off shape
At the two-way blocking-up structure to charge-discharge battery and the power supply side；
When protecting structure using the negative pole end of the charging and discharging control system, the first switch tube is in normal off and opens shape
State, and normally on is set as when second switch electric discharge；The second switch and the 4th switch simultaneously turn off shape
At the two-way blocking-up structure to charge-discharge battery and the power supply side.
6. battery protection according to claim 2 and management of charging and discharging system architecture characterized by comprising
When charge-discharge battery is discharge condition；Whether the judgement voltage to charge-discharge battery both ends is greater than the power supply
The voltage at feeder ear both ends；
When being not more than, adjusting the regulating circuit is step-up discharge mode；
Specifically include: that the inductance, the first switch tube and the second switch constitute step-up discharge structure, passes through
The control information that the control circuit is sent controls the step-up discharge structure, puts to described to the output of charge-discharge battery both ends
Piezoelectric voltage carries out boosting processing, and loads in the power supply side；
When protecting structure using the positive terminal of the charging and discharging control system, in normal when the third switchs tube discharge
On state, and the 4th switch is set as normal off open state；The first switch and third switch simultaneously turn off shape
At the two-way blocking-up structure to charge-discharge battery and the power supply side；
When protecting structure using the negative pole end of the charging and discharging control system, the third switching tube is in normal off and opens shape
State, and normally on is set as when four switch discharge；The second switch and the 4th switch simultaneously turn off shape
At the two-way blocking-up structure to charge-discharge battery and the power supply side.
7. according to claim the 2-6 any battery protection and management of charging and discharging system architecture, which is characterized in that the control
Circuit processed include: signal feedback selector, error amplifier, PWM modulator, detection signal comparator, model selection comparator,
Logic control circuit and decoder；
The signal feedback selector is electrically connected with the input terminal of the error amplifier；The output end of the error amplifier with
The signal input part of the PWM modulator is electrically connected；The signal input part electricity of inductive current output end and PWM modulator to be detected
Connection；The signals-modulating output end of the PWM modulator is electrically connected with the logic control circuit；
The input termination detection signal of the detection signal comparator, the output end of the detection signal comparator and the logic
The electrical connection of control circuit signal input part, and the output end of the logic control circuit is electrically connected with the regulating circuit；
Model selection comparator access respectively with the test side of the power supply side and described examined to charge-discharge battery
End electrical connection is surveyed, the output end of the model selection comparator is electrically connected with the signal input part of the decoder；
The signal output end of the decoder is electrically connected with the logic control circuit signal control terminal.
8. battery protection according to claim 7 and management of charging and discharging system architecture characterized by comprising
Output comparison result is input to the logic control circuit via after the detection signal comparator by detection signal；And it is logical
The decoder selection charging and discharging state and buck-boost mode to charge-discharge battery is crossed, and will be described to charge-discharge battery
The logic control circuit is sent to for charging and discharging state and buck-boost mode；The logic control circuit controls the pressure regulation electricity
The working condition of switching tube in road, the detection information that the PWM modulator is fed back by error amplifier and described
Inductive current detection information, and regulate and control the duty ratio of the PWM wave of output, so control it is described to charge-discharge battery both end voltage with
The voltage and supply current at charging current and the power supply power supply both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910200528.6A CN109888875A (en) | 2019-03-16 | 2019-03-16 | A kind of battery protection and management of charging and discharging system architecture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910200528.6A CN109888875A (en) | 2019-03-16 | 2019-03-16 | A kind of battery protection and management of charging and discharging system architecture |
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| CN109888875A true CN109888875A (en) | 2019-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910200528.6A Pending CN109888875A (en) | 2019-03-16 | 2019-03-16 | A kind of battery protection and management of charging and discharging system architecture |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994743A (en) * | 2019-12-27 | 2020-04-10 | 北京兴达智联科技有限公司 | Controlled battery pack device and charge-discharge control method thereof |
| CN112751387A (en) * | 2020-12-31 | 2021-05-04 | 沃太能源南通有限公司 | Converter system and battery system with same |
-
2019
- 2019-03-16 CN CN201910200528.6A patent/CN109888875A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994743A (en) * | 2019-12-27 | 2020-04-10 | 北京兴达智联科技有限公司 | Controlled battery pack device and charge-discharge control method thereof |
| CN112751387A (en) * | 2020-12-31 | 2021-05-04 | 沃太能源南通有限公司 | Converter system and battery system with same |
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