CN109307842A - A kind of analog power that circuit is realized - Google Patents
A kind of analog power that circuit is realized Download PDFInfo
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- CN109307842A CN109307842A CN201811210625.5A CN201811210625A CN109307842A CN 109307842 A CN109307842 A CN 109307842A CN 201811210625 A CN201811210625 A CN 201811210625A CN 109307842 A CN109307842 A CN 109307842A
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 35
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- 208000032953 Device battery issue Diseases 0.000 abstract 1
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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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H02J7/0085—
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- H02J7/0086—
Abstract
The present invention discloses a kind of analog power that circuit is realized, can externally charge and discharge, simulated battery failure and analog power internal resistance；Specifically include that output electric current current constant control part, Isobarically Control part, pour into electric current current constant control part, distal end voltage back production part, loop current back production part, first control units point, the second control section and load, analog power of the invention, which can externally charge, to discharge, and the internal resistance of energy analog power, the electrical characteristic of the true simulated battery of energy, it is switched by relay matrix, can easily realize the fault simulations such as short circuit, short circuit, reversal connection, it can perfectly fault test of the substituting battery (power supply) in fields such as BMS.
Description
Technical field
The present invention relates to the analog powers that analog power technical field more particularly to a kind of circuit are realized.
Background technique
In fields such as BMS, battery (power supply or super appearance) charge and discharge control management system, aerospaces, it is often necessary to artificial
Some short circuits, open circuit faults are manufactured, whether carry out the monitoring systems such as test b MS reliable to these abnormal responses and processing in time,
The power supply generallyd use in the prior art for the test of BMS is to be realized by common batteries (power supply), and use common batteries
(power supply) has the disadvantage that
1. common batteries safety coefficient is low: BMS etc. test in, short circuit or reversal connection etc. failures when, have burn out route,
The risks such as explosion on fire seriously threaten property and research and development tester's personal safety；
2. need personnel to do the patching operations such as short circuit or open circuit when using common batteries simulated failure, it is very not square
Just, also inflexible, low efficiency；
3. common batteries flexibility ratio is inadequate, voltage is uncontrollable, can not artificially program, and can not be adapted to and need to switch various tests
The scene of voltage, and response speed and driving capability are also uncontrollable.
Summary of the invention
It, can not safe and efficient simulation for common batteries due to some characteristic attributes such as its chemical characteristic, physical characteristic
There is the deficiency for the test scene for being unable to satisfy the high requests such as BMS in power failure, this circuit is precisely in order to solve the above industry pain
Point realizes analog power by a kind of circuit, is able to achieve charge and discharge, simulated battery electrical characteristic, while passing through certain circuit knot
Structure easily realizes the fault simulations such as short circuit, open circuit, reversal connection, and be finally reached perfect substitution common batteries makes in BMS test
With the problems such as overcoming common batteries safety, service life, flexibility ratio.
The analog power that a kind of circuit provided by the invention is realized, it is characterised in that: it can externally charge and discharge inwards,
Analog power failure and analog power internal resistance；Specifically include that output electric current current constant control part, Isobarically Control part pours into
Electric current current constant control part, distal end voltage back production part, loop current back production part, first control units point, the second control section,
Matrix switch and load.
Wherein, first control units divides, output electric current current constant control part, Isobarically Control part, pours into electric current current constant control
Partially, distal end voltage back production part, loop current back production part realize the external charging of analog power and discharge inwards, Yi Jimo
Quasi- internal resistance of source function；Second control section and matrix switch realize the fault simulating function of analog power.
Further, output electric current current constant control part is by the first operational amplifier, second operational amplifier, first resistor
It is formed with the first PMOS tube；Isobarically Control part is made of third operational amplifier, the first NMOS tube and the second PMOS tube；It pours into
Electric current current constant control part is made of four-operational amplifier, the 5th operational amplifier, the second NMOS tube and second resistance；Distally
Voltage back production part is made of the 6th operational amplifier and the first analog-digital converter；Loop current back production part by 3rd resistor,
7th operational amplifier and the second analog-digital converter composition, matrix switch have first switch, second switch, third switch and the 4th
Switch composition, first control units point control constant current and Isobarically Control end, the second control section by receiving back production electric current and voltage
Control the opening and closing of four switches in matrix switch.
Specifically, the physical circuit connection relationship of analog power are as follows: first resistor R1 mono- terminates bus power supply+VBUS and the
An input terminal of one operational amplifier AMP1, the source electrode of the first PMOS tube of another termination Q1 of first resistor R1 and the first budget
Another input terminal end of amplifier AMP1, the one of the output termination second operational amplifier AMP2 of the first operational amplifier AMP1
A input terminal, another input the first current constant control end I_CTRL1 of termination of second operational amplifier AMP2, the second operation amplifier
The grid for meeting the first PMOS tube Q1 of the output of device AMP2, the drain electrode of the first PMOS tube Q1 connect the drain electrode of the first NMOS tube Q2, the
The source electrode of one NMOS tube Q2 connects the source electrode of the second PMOS tube Q3, the first switch S1 in matrix switch module and second switch S2's
One end, the grid of the first NMOS tube Q2 connect the grid of the second PMOS tube Q3 and the output end of third operational amplifier AMP3, third
Two input terminals of operational amplifier AMP3 meet Isobarically Control end V_CTRL respectively and the output end of the 6th operational amplifier AMP6 is defeated
Back production voltage V_MON out, the drain electrode of the second PMOS tube Q3 connect the drain electrode of the second NMOS tube Q4, and the grid of the second NMOS tube Q4 connects
The output end of four-operational amplifier AMP4, the source electrode of the second NMOS tube Q4 connect one end and the 5th operational amplifier of second resistance
An input terminal of APM5, another input terminal and ground wire of the 5th operational amplifier APM5 of another termination of second resistance R2,
An input of four-operational amplifier AMP4 terminates the second current constant control end I_CTRL2, and four-operational amplifier AMP4's is another
The output end of one the 5th operational amplifier APM5 of input termination, one end ground line, the 6th operational amplifier of 3rd resistor R3
An input terminal of AMP6, another input terminal, the matrix of the 6th operational amplifier AMP6 of another termination of 3rd resistor R3 are opened
One end of third switch S3 and the 4th switch S4 in the module of pass, the other end of another termination third switch S3 of first switch S1,
Load positive terminals and an input terminal of the 7th operational amplifier AMP7, the 4th switch S4 of another termination of second switch S2
The other end, the negative terminals of load and the 7th operational amplifier AMP7 another input terminal, the 6th operational amplifier AMP6
Output terminate the first analog-digital converter ADC1 input terminal, the output of the 7th operational amplifier AMP7 terminates the second analog-digital converter
The output end of ADC2 input terminal, the output end of the first analog-digital converter ADC1 and the second analog-digital converter ADC2 are respectively by back production
Voltage and current signals send first control units point to.
Specifically, first control units point according to the voltage and current signals of back production control the first current constant control end I_CTRL1,
Second current constant control end I_CTRL2 and voltage controling end V_CTRL first is opened in the second control section control matrix switch module
The open and-shut mode of S1, second switch S2, third switch S3 and the 4th switch S4 are closed, battery short circuit is realized, open circuit, is reversely connected failure
Simulation.
Preferably, when switching all off, analog power open-circuit fault；First switch S1 and the 4th switch S4 closure, with
And when a closure in second switch S2 and third switch S3, analog power short trouble；The switch of first switch S1 and the 4th
S4 is disconnected, and when second switch S2 and third switch S3 are closed, simulated battery is reversely connected failure.
Wherein, the load is at least one of battery, super capacitor or BMS.
Specifically, the first control units point in the analog power is according to distal end voltage back production part and loop current back production
The electric current and voltage signal of part back production, accurate control export electric current current constant control part, Isobarically Control part and pour into electricity
Current constant control part is flowed, the output voltage at control load both ends realizes the simulation to analog power internal resistance.
The invention has the benefit that can externally charge the present invention provides the analog power that a kind of circuit is realized
It can discharge, and the internal resistance of energy analog power, the electrical characteristic of the true simulated battery of energy is switched by relay matrix,
It can easily realize the fault simulations such as short circuit, short circuit, reversal connection, failure of the perfect substituting battery (power supply) of energy in fields such as BMS
Test.
Figure of description
Fig. 1 uses dual quadrant power supply to carry out the structural block diagram of simulated battery charge-discharge characteristic in the prior art.
The analog power circuit block diagram that Fig. 2 circuit provided by the invention is realized.
Specific embodiment
It is general that BMS exception is carried out by artificial short circuit, open circuit, reversal connection etc. using battery in the test macros such as BMS
Response test, to understand response speed of the BMS to abnormal failure when and design to abnormal treatment mechanism.It is adopted in industry at present
With dual quadrant power supply come simulated battery charge-discharge characteristic, its main feature is that electric current can both export outward electric current with two-way flow
Can also sink current inward, basic schematic diagram block diagram as shown in Figure 1, wherein CTRL is programming Control voltage, it for it is low then externally
Electric current is exported, for high then sink current inward；+ VBUS is bus power supply, is powered when for externally exporting electric current；I_SOURCE is defeated
Electric current out, I_SINK are sink current；LOAD is the load of power supply, can be battery, super capacitor, is also possible to BMS.The circuit
Substantially the charge-discharge characteristic of battery can be simulated, to substitute common batteries, load faulty situation can not singly be simulated
Circuit of the present invention is made of two large divisions, and first half is constant pressure and flow charge-discharge circuit, for the electrical of battery
Simulated behavior, basic principle are based on dual quadrant power supply charge-discharge circuit, by the constant pressure and flow circuit and class of normal linear power supply
It is combined together like the discharge circuit of electronic load, externally output electric current is realized to power tube by upper lower arm two and fills inward
Enter the function of electric current, come realize common batteries electrical characteristic simulation.Latter half is fault simulation circuit, by exporting
End increases a series of relay array switches, in conjunction with first control units point and the second control section (slave computer software-embedded software
Part), the various combinations by controlling matrix switch switch, and realize the simulation of the failures such as output short-circuit, open circuit, reversal connection.
The physical circuit of analog power of the present invention is realized as shown in Fig. 2, wherein AMP1-AMP7: for amplifier (operation amplifier
Device), the signal condition of control and voltage and current acquisition for constant pressure and flow；
I_CTRL1, I_CTRL2, V_CTRL: constant pressure or the program voltage of constant current, by first control units point (single-chip microcontroller) control
DAC output processed；
Q1-Q4: output power adjustment pipe；
R1-R3: current sampling resistor.
I_SOURCE: externally the circuit (if be equivalent to electricity from the point of view of simulated battery by the electric current signal of output electric current
It externally discharges in pond)；
I_SINK: the electric current signal of electric current is poured into inward (if the circuit is equivalent to battery from the point of view of simulated battery
It is charging)；
S1-S4: relay switch；
LOAD: the load of analog power, such as BMS.
The analog power that a kind of circuit provided by the invention is realized, it is characterised in that: it can externally charge and discharge inwards,
Analog power failure and analog power internal resistance；Specifically include that output electric current current constant control part, Isobarically Control part pours into
Electric current current constant control part, distal end voltage back production part, loop current back production part, first control units point, the second control section,
Matrix switch and load.
Further, output electric current current constant control part is by the first operational amplifier, second operational amplifier, first resistor
It is formed with the first PMOS tube；Isobarically Control part is made of third operational amplifier, the first NMOS tube and the second PMOS tube；It pours into
Electric current current constant control part is made of four-operational amplifier, the 5th operational amplifier, the second NMOS tube and second resistance；Distally
Voltage back production part is made of the 6th operational amplifier and the first analog-digital converter；Loop current back production part by 3rd resistor,
7th operational amplifier and the second analog-digital converter composition, matrix switch have first switch, second switch, third switch and the 4th
Switch composition, first control units point control constant current and Isobarically Control end, the second control section by receiving back production electric current and voltage
Control the opening and closing of four switches in matrix switch.
Specifically, the physical circuit connection relationship of analog power are as follows: first resistor R1 mono- terminates bus power supply+VBUS and the
An input terminal of one operational amplifier AMP1, the source electrode of the first PMOS tube of another termination Q1 of first resistor R1 and the first budget
Another input terminal end of amplifier AMP1, the one of the output termination second operational amplifier AMP2 of the first operational amplifier AMP1
A input terminal, another input the first current constant control end I_CTRL1 of termination of second operational amplifier AMP2, the second operation amplifier
The grid for meeting the first PMOS tube Q1 of the output of device AMP2, the drain electrode of the first PMOS tube Q1 connect the drain electrode of the first NMOS tube Q2, the
The source electrode of one NMOS tube Q2 connects the source electrode of the second PMOS tube Q3, the first switch S1 in matrix switch module and second switch S2's
One end, the grid of the first NMOS tube Q2 connect the grid of the second PMOS tube Q3 and the output end of third operational amplifier AMP3, third
Two input terminals of operational amplifier AMP3 meet Isobarically Control end V_CTRL respectively and the output end of the 6th operational amplifier AMP6 is defeated
Back production voltage V_MON out, the drain electrode of the second PMOS tube Q3 connect the drain electrode of the second NMOS tube Q4, and the grid of the second NMOS tube Q4 connects
The output end of four-operational amplifier AMP4, the source electrode of the second NMOS tube Q4 connect one end and the 5th operational amplifier of second resistance
An input terminal of APM5, another input terminal and ground wire of the 5th operational amplifier APM5 of another termination of second resistance R2,
An input of four-operational amplifier AMP4 terminates the second current constant control end I_CTRL2, and four-operational amplifier AMP4's is another
The output end of one the 5th operational amplifier APM5 of input termination, one end ground line, the 6th operational amplifier of 3rd resistor R3
An input terminal of AMP6, another input terminal, the matrix of the 6th operational amplifier AMP6 of another termination of 3rd resistor R3 are opened
One end of third switch S3 and the 4th switch S4 in the module of pass, the other end of another termination third switch S3 of first switch S1,
Load positive terminals and an input terminal of the 7th operational amplifier AMP7, the 4th switch S4 of another termination of second switch S2
The other end, the negative terminals of load and the 7th operational amplifier AMP7 another input terminal, the 6th operational amplifier AMP6
Output terminate the first analog-digital converter ADC1 input terminal, the output of the 7th operational amplifier AMP7 terminates the second analog-digital converter
The output end of ADC2 input terminal, the output end of the first analog-digital converter ADC1 and the second analog-digital converter ADC2 are respectively by back production
Voltage and current signals send first control units point to.
Specifically, first control units point according to the voltage and current signals of back production control the first current constant control end I_CTRL1,
Second current constant control end I_CTRL2 and voltage controling end V_CTRL first is opened in the second control section control matrix switch module
The open and-shut mode of S1, second switch S2, third switch S3 and the 4th switch S4 are closed, battery short circuit is realized, open circuit, is reversely connected failure
Simulation.
Preferably, when switching all off, analog power open-circuit fault；First switch S1 and the 4th switch S4 closure, with
And when a closure in second switch S2 and third switch S3, analog power short trouble；The switch of first switch S1 and the 4th
S4 is disconnected, and when second switch S2 and third switch S3 are closed, simulated battery is reversely connected failure.
Charge and discharge of the invention, simulation internal resistance, the realization of fault simulation, described in detail below:
(1) working principle of charge and discharge, to realize the simulation of cell electrical characteristic:
Charge-discharge circuit is grouped together by charging circuit and discharge circuit, top half in figure (AMP1, AMP2,
AMP3, R1, Q1, Q2) be externally output electric current constant pressure and flow circuit (I_SOURCE, battery discharge), lower half portion (AMP3,
AMP4, AMP5, R2, Q3, Q4) it is the constant pressure and flow circuit (I_SINK, battery charging) for pouring into electric current inward.
AMP3 and Q2, Q3 constitute the constant-voltage control circuit of charge and discharge in figure, and constant pressure program voltage V_CTRL and distal end are returned
The V_MON (the most terminal voltage of analog power) and AMP3, Q2, Q3 adopted constitutes the feedback loop of closed loop,
V_CTRL and V_MON compares amplification, when distal end voltage is smaller than the voltage of setting, then can control Q2 opening, at this time
External output voltage electric current, is equivalent to battery and externally discharges, until voltage reaches setting value.The R1 of top half is also always at this time
The electric current externally to discharge is being acquired in real time, and divides the program voltage of output constant current ring with first control units
I_CTRL1 is compared, if the electric current adopted has been greater than the cut-off current of setting, error amplifier can export an electricity
It presses to limit the conducting degree of Q1 pipe, to realize current limliting.Therefore short circuit current limitation protection may be implemented in the circuit, that is, works as outer end
When short circuit occurs, circuit can not allow it infinitely to increase current limit in certain value, protect machine and external BMS etc. not by
It burns out, and size can be arbitrarily arranged in cut-off current.
Likewise, when outside voltage is higher than inside voltage after AMP3 compares amplification, Q2 can be driven to close, Q1 is beaten
It opens, electric current will fill inside at this time, realize the charging process of simulated battery, and electric current can also pass through lower half portion when equally charging
AMP4, AMP5, I_CTRL2, R2, Q4 come together to realize current limliting, guarantee that charging current can be limited in certain value, will not be because of electricity
It flows through big and burns out.
It is either charged or discharged simultaneously, voltage and current is all collected by accurate ADC in real time, and AMP6 and ADC1 are used
In the acquisition of distal end voltage, the current acquisition of AMP7 and ADC2 for entire circuit (bipolarity can acquire).
The charge-discharge circuit of first half, can not only real simulation battery charge-discharge characteristic, also have high-precision, Gao Xiang
The characteristics of answering speed, high reliability will not burn out even if short circuit reversal connection also can guarantee that circuit works normally.
(2) simulation realizing method of battery, the internal resistance of source:
Battery or power supply all have internal resistance, and the simulation of battery, the internal resistance of source, side also may be implemented in circuit of the present invention
Method is the acquisition of the high-accuracy voltage and current based on the circuit, such as AMP6, AMP7 in figure, for accurate amplifier,
ADC1, ADC2 are accurate analog-digital converter, and AMP6 and ADC1 are used for the acquisition of distal end voltage, and AMP7 and ADC2 are used
Current acquisition in entire circuit (Bipolar current can acquire).Due to can precise acquisition distal end voltage and loop current,
A pressure drop can be set in first control units point (single-chip microcontroller) embedded software, such as following formula:
Vout=Vset-I*Rs,
Vout is the voltage of most terminal in formula, and Vset is the nominal voltage of setting, and I is charging and discharging circuit electric current,
For example the voltage that we set is Vset=5V, it is assumed that the internal resistance for simulated battery is 0.1 Ω, at this time the electricity in circuit
It flows I=1A (the real-time back production of ADC2), then we can be by first control units sub-control program voltage the voltage of least significant end
It is adjusted to Vout=4.9V, the simulation of 0.1 Europe internal resistance is thereby realized, is equivalent to the internal resistance of inside battery.
In whole process, program voltage is adjusted with loop current in real time always, with simulate a constant battery or
The internal resistance of power supply.
(3) the fault simulations circuit operation principle such as short circuit, open circuit, reversal connection:
S1, S2, S3, S4 are relay switch, it can be controlled by the second control section and disconnects and is closed, short to simulate
The various abnormal failures such as road, open circuit, reversal connection, OUT+ is the anode output of analog power in figure, and OUT- is the cathode of analog power
Output.
Normal output: when S1 and S4 is closed, S2 and S3 are disconnected, then analog power normally exports, and is at this time simulated battery
Normal operation；
Open circuit: when S1, S2, S3, S4 are all off, then the case where analog power open circuit output, i.e., simulated battery is disconnected,
Open circuit can also only disconnect the case where one side polarity, for example S1 closure, S2, S3, S4 are disconnected, and simulation is positive open circuit, and S4 is closed
It closes, S1, S2, S3 are disconnected, then what is simulated is battery cathode open circuit；
Short circuit: when S1, S4, S2 (or S3) closure then can be with simulated battery short-circuit conditions, since our front-end circuits have
Constant current current-limiting circuit, even short circuit current can also be limited in a certain range at this time, can guarantee the line of this power supply or entire circuit
Road and BMS will not be burned；
Error-polarity connection: when S1, S4 are disconnected, what S2, S3 closure were then simulated is battery reversal connection.
The matrix switch electricity of the high efficient and flexible of the reliable bipolar (dis) charging circuit and rear end of the first half of the circuit
Road organic assembling is simulated by the electrical characteristic that circuit realizes battery, also achieves the open circuit of entire BMS test, short circuit, anti-
The fault simulations such as connect, the perfect conventional batteries that substitute easily realize the survey of various fault simulations in the use of the testing fields such as BMS
Examination.
Although describing the present invention by reference to embodiment above, but it is to be understood that do not departing from the scope of the present invention
In the case where, many changes and modifications can be carried out.Therefore, being intended to foregoing detailed description is considered being illustrative rather than limit
Property processed, and it is to be understood that following following claims (including all equivalents) is intended to limit the spirit and scope of the present invention.With
These upper embodiments are interpreted as being merely to illustrate the present invention rather than limit the scope of the invention.Reading this hair
After the content of bright record, technical staff can be made various changes or modifications the present invention, these equivalence changes and modification are same
Sample falls into the scope of the claims in the present invention.
Claims (6)
1. the analog power that a kind of circuit is realized, it is characterised in that: it can externally charge and discharge inwards, analog power failure,
And analog power internal resistance；Specifically include that output electric current current constant control part, Isobarically Control part pours into electric current current constant control
Part, distal end voltage back production part, loop current back production part, first control units point, the second control section, matrix switch and
Load.
2. analog power according to claim 1, it is characterised in that: put by the first operation output electric current current constant control part
Big device, second operational amplifier, first resistor and the first PMOS tube composition；Isobarically Control part is by third operational amplifier,
One NMOS tube and the second PMOS tube composition；Pour into electric current current constant control part by four-operational amplifier, the 5th operational amplifier,
Second NMOS tube and second resistance composition；Distal end voltage back production part is by the 6th operational amplifier and the first analog-digital converter group
At；Loop current back production part is made of 3rd resistor, the 7th operational amplifier and the second analog-digital converter, and matrix switch has
One switch, second switch, third switch and the 4th switch composition, first control units point is by receiving back production electric current and voltage control
Constant current and Isobarically Control end, the second control section control the opening and closing of four switches in matrix switch.
3. analog power according to claim 2, it is characterised in that: the physical circuit connection relationship of analog power are as follows: the
One resistance R1 mono- terminates an input terminal of bus power supply+VBUS and the first operational amplifier AMP1, and first resistor R1's is another
Terminate the source electrode of the first PMOS tube Q1 and another input terminal end of the first op-amp AMP1, the first operational amplifier AMP1
Output termination second operational amplifier AMP2 an input terminal, another input termination the of second operational amplifier AMP2
One current constant control end I_CTRL1, the grid for meeting the first PMOS tube Q1 of the output of second operational amplifier AMP2, the first PMOS tube
The drain electrode of Q1 connects the drain electrode of the first NMOS tube Q2, and the source electrode of the first NMOS tube Q2 connects source electrode, the matrix switch of the second PMOS tube Q3
One end of first switch S1 and second switch S2 in module, the grid of the first NMOS tube Q2 connect the second PMOS tube Q3 grid and
The output end of third operational amplifier AMP3, two input terminals of third operational amplifier AMP3 meet Isobarically Control end V_CTRL respectively
The back production voltage V_MON exported with the output end of the 6th operational amplifier AMP6, the drain electrode of the second PMOS tube Q3 meet the 2nd NMOS
The drain electrode of pipe Q4, the grid of the second NMOS tube Q4 connect the output end of four-operational amplifier AMP4, the source electrode of the second NMOS tube Q4
Connect one end of second resistance and an input terminal of the 5th operational amplifier APM5, the 5th operation of another termination of second resistance R2
One input of another input terminal and ground wire of amplifier APM5, four-operational amplifier AMP4 terminates the second current constant control end
The output end of the 5th operational amplifier APM5 of another input termination of I_CTRL2, four-operational amplifier AMP4,3rd resistor
One input terminal of one end ground line of R3, the 6th operational amplifier AMP6, the 6th operation of another termination of 3rd resistor R3 puts
One end of third switch S3 and the 4th switch S4, first switch S1 in another input terminal of big device AMP6, matrix switch module
The other end of another termination third switch S3, the positive terminals of load and the 7th operational amplifier AMP7 an input terminal,
The other end of the 4th switch S4 of another termination of second switch S2, the negative terminals of load and the 7th operational amplifier AMP7 it is another
The output of one input terminal, the 6th operational amplifier AMP6 terminates the first analog-digital converter ADC1 input terminal, the 7th operation amplifier
The output of device AMP7 terminates the second analog-digital converter ADC2 input terminal, the output end and the second modulus of the first analog-digital converter ADC1
The output end of converter ADC2 sends the voltage and current signals of back production to first control units point respectively.
4. analog power according to claim 3, it is characterised in that: first control units divides the voltage and current according to back production
Signal controls the first current constant control end I_CTRL1, the second current constant control end I_CTRL2 and voltage controling end V_CTRL, the second control
The opening and closing shape of first switch S1, second switch S2, third switch S3 and the 4th switch S4 in system part control matrix switch module
State realizes battery short circuit, open circuit, the simulation for being reversely connected failure.
5. analog power according to claim 1, it is characterised in that: the load is in battery, super capacitor or BMS
At least one.
6. analog power according to claim 1, it is characterised in that: the first control units in the analog power divides basis
The electric current and voltage signal of distal end voltage back production part and loop current back production part back production, accurate control output electric current constant current control
It makes part, Isobarically Control part and pours into electric current current constant control part, the output voltage at control load both ends is realized to simulation
The simulation of the internal resistance of source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811210625.5A CN109307842B (en) | 2018-10-17 | 2018-10-17 | Analog power supply for circuit realization |
Applications Claiming Priority (1)
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| CN111061197A (en) * | 2019-12-31 | 2020-04-24 | Tcl空调器(中山)有限公司 | Control device and control method for reverse-plugging prevention circuit and household appliance |
| CN112816809A (en) * | 2020-12-29 | 2021-05-18 | 中通客车控股股份有限公司 | Power battery simulation system and method for whole vehicle working condition test |
| CN112965012A (en) * | 2021-02-25 | 2021-06-15 | 广州亚美智造科技有限公司 | Power supply polarity reverse connection testing device, testing system and testing method |
| CN113325210A (en) * | 2020-12-16 | 2021-08-31 | 深圳市昂盛达电子有限公司 | Analog battery |
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