CN109307842B - Analog power supply for circuit realization - Google Patents
Analog power supply for circuit realization Download PDFInfo
- Publication number
- CN109307842B CN109307842B CN201811210625.5A CN201811210625A CN109307842B CN 109307842 B CN109307842 B CN 109307842B CN 201811210625 A CN201811210625 A CN 201811210625A CN 109307842 B CN109307842 B CN 109307842B
- Authority
- CN
- China
- Prior art keywords
- switch
- operational amplifier
- current
- control part
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004088 simulation Methods 0.000 claims abstract description 24
- 239000011159 matrix material Substances 0.000 claims abstract description 23
- 238000000605 extraction Methods 0.000 claims description 15
- HODRFAVLXIFVTR-RKDXNWHRSA-N tevenel Chemical compound NS(=O)(=O)C1=CC=C([C@@H](O)[C@@H](CO)NC(=O)C(Cl)Cl)C=C1 HODRFAVLXIFVTR-RKDXNWHRSA-N 0.000 claims description 11
- 101710170231 Antimicrobial peptide 2 Proteins 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 10
- 101710170230 Antimicrobial peptide 1 Proteins 0.000 claims description 9
- 101100434411 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ADH1 gene Proteins 0.000 claims description 9
- 101150102866 adc1 gene Proteins 0.000 claims description 9
- 101150042711 adc2 gene Proteins 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 13
- 230000004044 response Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 101710096660 Probable acetoacetate decarboxylase 2 Proteins 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- H02J7/0085—
-
- H02J7/0086—
Abstract
The invention discloses a simulation power supply realized by a circuit, which can charge and discharge outwards, simulate battery faults and simulate internal resistance of the power supply; mainly comprises the following steps: the analog power supply provided by the invention can charge and discharge the outside, simulate the internal resistance of the power supply, truly simulate the electrical characteristics of a battery, easily realize fault simulation such as short circuit, reverse connection and the like through a relay matrix switch, and perfectly replace fault test of the battery (power supply) in the fields such as BMS and the like.
Description
Technical Field
The invention relates to the technical field of analog power supplies, in particular to an analog power supply for circuit implementation.
Background
In the fields of BMS, battery (power supply or super capacity) charge and discharge control management systems, aerospace and the like, it is often required to artificially make some short circuits and open circuit faults to test whether the response and the processing of monitoring systems such as BMS to these abnormalities are reliable and timely, the power supply generally adopted in the prior art for testing the BMS is realized by a common battery (power supply), and the following defects exist in using the common battery (power supply):
1. the safety coefficient of the common battery is low: in BMS and other tests, when faults such as short circuit or reverse connection occur, risks such as line burning, fire explosion and the like are caused, and the personal safety of property and research and development testers is seriously threatened;
2. when a common battery is used for simulating faults, personnel are required to do wiring operations such as short circuit or open circuit, and the like, so that the battery is very inconvenient, inflexible and low in efficiency;
3. the common battery has insufficient flexibility, uncontrollable voltage, incapability of artificial programming, incapability of adapting to scenes in which various test voltages need to be switched, and uncontrollable response speed and driving capability.
Disclosure of Invention
Aiming at the defects that the common battery cannot safely and efficiently simulate power failures due to some characteristic attributes such as chemical characteristics and physical characteristics and the like, and test scenes which cannot meet the requirements of BMS and the like exist, the circuit is used for realizing the simulation of power supply through a circuit and realizing charge and discharge to solve the pain points of the above industries, simulating the electrical characteristics of the battery, simultaneously realizing the fault simulation of short circuit, open circuit, reverse connection and the like through a certain circuit structure, and finally realizing perfect replacement of the use of the common battery in BMS test, and overcoming the problems of safety, service life, flexibility and the like of the common battery.
The invention provides an analog power supply realized by a circuit, which is characterized in that: the external charging and the internal discharging can be performed, the power failure is simulated, and the internal resistance of the power is simulated; mainly comprises the following steps: the device comprises an output current constant current control part, a constant voltage control part, a current constant current control part, a remote voltage extraction part, a loop current extraction part, a first control part, a second control part, a matrix switch and a load.
The first control part, the output current constant current control part, the constant voltage control part, the current constant current control part, the remote voltage recovery part and the loop current recovery part realize the external charging and the internal discharging of the analog power supply and the internal resistance function of the analog power supply; the second control section and the matrix switch realize a fault simulation function of the simulation power supply.
Further, the output current constant current control part consists of a first operational amplifier, a second operational amplifier, a first resistor and a first PMOS tube; the constant voltage control part consists of a third operational amplifier, a first NMOS tube and a second PMOS tube; the current constant current control part consists of a fourth operational amplifier, a fifth operational amplifier, a second NMOS tube and a second resistor; the remote voltage recovery part consists of a sixth operational amplifier and a first analog-to-digital converter; the loop current extraction part consists of a third resistor, a seventh operational amplifier and a second analog-to-digital converter, the matrix switch consists of a first switch, a second switch, a third switch and a fourth switch, the first control part controls the constant current and constant voltage control ends by receiving extraction current and voltage, and the second control part controls the opening and closing of four switches in the matrix switch.
Specifically, the specific circuit connection relation of the analog power supply is as follows: one end of the first resistor R1 is connected with the bus power +VBUS and one input end of the first operational amplifier AMP1, the other end of the first resistor R1 is connected with the source electrode of the first PMOS tube Q1 and the other input end of the first budget amplifier AMP1, the output end of the first operational amplifier AMP1 is connected with one input end of the second operational amplifier AMP2, the other input end of the second operational amplifier AMP2 is connected with the first constant current control end I_CTRL1, the output end of the second operational amplifier AMP2 is connected with the grid electrode of the first PMOS tube Q1, the drain electrode of the first PMOS tube Q1 is connected with the drain electrode of the first NMOS tube Q2, the source electrode of the first NMOS tube Q2 is connected with the source electrode of the second PMOS tube Q3, the first switch S1 and one end of the second switch S2 in the matrix switch module, the grid electrode of the first NMOS tube Q2 is connected with the grid electrode of the second PMOS tube Q3 and the output end of the third operational amplifier AMP3, the two input ends of the third operational amplifier AMP3 are respectively connected with a constant voltage control end V_CTRL and a recovery voltage V_MON output by the output end of the sixth operational amplifier AMP6, the drain electrode of the second PMOS tube Q3 is connected with the drain electrode of the second NMOS tube Q4, the grid electrode of the second NMOS tube Q4 is connected with the output end of the fourth operational amplifier AMP4, the source electrode of the second NMOS tube Q4 is connected with one end of a second resistor and one input end of the fifth operational amplifier APM5, the other end of the second resistor R2 is connected with the other input end of the fifth operational amplifier APM5 and the ground wire, one input end of the fourth operational amplifier AMP4 is connected with the output end of the fifth operational amplifier APM5, one end of the third resistor R3 is connected with the ground wire, one input end of the sixth operational amplifier AMP6, the other end of the third switch S3 and the fourth switch S4 in the matrix switch module, the other end of the first switch S1 is connected with the other end of the third switch S3, the load positive terminal and one input end of the seventh operational amplifier AMP7, the other end of the second switch S2 is connected with the other end of the fourth switch S4, the load negative terminal and the other input end of the seventh operational amplifier AMP7, the output end of the sixth operational amplifier AMP6 is connected with the input end of the first analog-to-digital converter ADC1, the output end of the seventh operational amplifier AMP7 is connected with the input end of the second analog-to-digital converter ADC2, and the output end of the first analog-to-digital converter ADC1 and the output end of the second analog-to-digital converter ADC2 respectively transmit the extracted voltage and current signals to the first control part.
Specifically, the first control part controls the first constant current control end I_CTRL1, the second constant current control end I_CTRL2 and the voltage control end V_CTRL according to the extracted voltage and current signals, and the second control part controls the opening and closing states of the first switch S1, the second switch S2, the third switch S3 and the fourth switch S4 in the matrix switch module, so that the simulation of short circuit, open circuit and reverse connection faults of the battery is realized.
Preferably, when the switch is completely opened, the open circuit fault of the power supply is simulated; simulating a power supply short-circuit fault when the first switch S1 and the fourth switch S4 are closed and one of the second switch S2 and the third switch S3 is closed; when the first switch S1 and the fourth switch S4 are opened and the second switch S2 and the third switch S3 are closed, the reverse connection fault of the battery is simulated.
Wherein the load is at least one of a battery, a super capacitor, or a BMS.
Specifically, the first control part in the analog power supply precisely controls the output current constant current control part, the constant voltage control part and the embedded current constant current control part according to the current and voltage signals extracted by the remote voltage extraction part and the loop current extraction part, controls the output voltage at two ends of the load, and realizes the simulation of the internal resistance of the analog power supply.
The beneficial effects of the invention are as follows: the invention provides a circuit-implemented analog power supply, which can charge and discharge the outside, can simulate the internal resistance of the power supply, can truly simulate the electrical characteristics of a battery, can easily realize fault simulation of short circuit, reverse connection and the like through a relay matrix switch, and can perfectly replace fault test of the battery (power supply) in the fields of BMS and the like.
Drawings
Fig. 1 is a block diagram of a prior art structure for simulating battery charge and discharge characteristics using a dual-quadrant power supply.
Fig. 2 is a block diagram of an analog power supply circuit for a circuit implementation provided by the present invention.
Detailed Description
In a test system such as a BMS, an abnormal response test of the BMS is generally performed by manually shorting, opening, reversing and the like, so that the response speed of the BMS to abnormal faults and the design of an abnormal processing mechanism are known. The current industry adopts a double-quadrant power supply to simulate the charge and discharge characteristics of a battery, and is characterized in that current can flow in two directions, and can be output outwards or can flow inwards, a basic schematic diagram is shown in figure 1, wherein CTRL is a programming control voltage, the CTRL outputs the current outwards when the CTRL is low, and the CTRL flows inwards when the CTRL is high; +VBUS is a bus power supply and is used for supplying power when outputting current externally; I_SOURCE is output current, and I_SINK is SINK current; the LOAD is a LOAD of a power supply, and may be a battery, a super capacitor, or a BMS. The circuit can basically simulate the charge and discharge characteristics of the battery to replace the common battery, and can not simulate the load fault condition
The circuit consists of two parts, the first part is a constant voltage constant current charge-discharge circuit used for simulating the electrical characteristics of a battery, the basic principle is based on a double-quadrant power supply charge-discharge circuit, the constant voltage constant current circuit of a common linear power supply is combined with a discharge circuit similar to an electronic load, and the functions of outputting current outwards and pouring current inwards are realized through two pairs of power tubes of an upper arm and a lower arm, so that the simulation of the electrical characteristics of the common battery is realized. The latter half is a fault simulation circuit, and by adding a series of relay array switches at the output end and combining the first control part and the second control part (lower computer software-embedded software), the simulation of faults such as output short circuit, open circuit, reverse connection and the like is realized by controlling the switching of various combinations of matrix switches.
A specific circuit implementation of the analog power supply of the present invention is shown in fig. 2, wherein AMP1-AMP7: the operational amplifier is used for controlling constant voltage and constant current and conditioning signals acquired by voltage and current;
i_ctrl1, i_ctrl2, v_ctrl: the DAC output is controlled by a first control part (singlechip);
Q1-Q4, output power adjusting tube;
R1-R3, current sampling resistor.
I_source: a current indication of the external output current (equivalent to battery-to-external discharge if the circuit is considered to be an analog battery);
I_SINK: a current schematic drawing current inwards (equivalent to a battery being charged if the circuit is considered to be an analog battery);
S1-S4, a relay switch;
LOAD-LOAD, the LOAD of an analog power source, such as a BMS.
The invention provides an analog power supply realized by a circuit, which is characterized in that: the external charging and the internal discharging can be performed, the power failure is simulated, and the internal resistance of the power is simulated; mainly comprises the following steps: the device comprises an output current constant current control part, a constant voltage control part, a current constant current control part, a remote voltage extraction part, a loop current extraction part, a first control part, a second control part, a matrix switch and a load.
Further, the output current constant current control part consists of a first operational amplifier, a second operational amplifier, a first resistor and a first PMOS tube; the constant voltage control part consists of a third operational amplifier, a first NMOS tube and a second PMOS tube; the current constant current control part consists of a fourth operational amplifier, a fifth operational amplifier, a second NMOS tube and a second resistor; the remote voltage recovery part consists of a sixth operational amplifier and a first analog-to-digital converter; the loop current extraction part consists of a third resistor, a seventh operational amplifier and a second analog-to-digital converter, the matrix switch consists of a first switch, a second switch, a third switch and a fourth switch, the first control part controls the constant current and constant voltage control ends by receiving extraction current and voltage, and the second control part controls the opening and closing of four switches in the matrix switch.
Specifically, the specific circuit connection relation of the analog power supply is as follows: one end of the first resistor R1 is connected with the bus power +VBUS and one input end of the first operational amplifier AMP1, the other end of the first resistor R1 is connected with the source electrode of the first PMOS tube Q1 and the other input end of the first budget amplifier AMP1, the output end of the first operational amplifier AMP1 is connected with one input end of the second operational amplifier AMP2, the other input end of the second operational amplifier AMP2 is connected with the first constant current control end I_CTRL1, the output end of the second operational amplifier AMP2 is connected with the grid electrode of the first PMOS tube Q1, the drain electrode of the first PMOS tube Q1 is connected with the drain electrode of the first NMOS tube Q2, the source electrode of the first NMOS tube Q2 is connected with the source electrode of the second PMOS tube Q3, the first switch S1 and one end of the second switch S2 in the matrix switch module, the grid electrode of the first NMOS tube Q2 is connected with the grid electrode of the second PMOS tube Q3 and the output end of the third operational amplifier AMP3, the two input ends of the third operational amplifier AMP3 are respectively connected with a constant voltage control end V_CTRL and a recovery voltage V_MON output by the output end of the sixth operational amplifier AMP6, the drain electrode of the second PMOS tube Q3 is connected with the drain electrode of the second NMOS tube Q4, the grid electrode of the second NMOS tube Q4 is connected with the output end of the fourth operational amplifier AMP4, the source electrode of the second NMOS tube Q4 is connected with one end of a second resistor and one input end of the fifth operational amplifier APM5, the other end of the second resistor R2 is connected with the other input end of the fifth operational amplifier APM5 and the ground wire, one input end of the fourth operational amplifier AMP4 is connected with the output end of the fifth operational amplifier APM5, one end of the third resistor R3 is connected with the ground wire, one input end of the sixth operational amplifier AMP6, the other end of the third switch S3 and the fourth switch S4 in the matrix switch module, the other end of the first switch S1 is connected with the other end of the third switch S3, the load positive terminal and one input end of the seventh operational amplifier AMP7, the other end of the second switch S2 is connected with the other end of the fourth switch S4, the load negative terminal and the other input end of the seventh operational amplifier AMP7, the output end of the sixth operational amplifier AMP6 is connected with the input end of the first analog-to-digital converter ADC1, the output end of the seventh operational amplifier AMP7 is connected with the input end of the second analog-to-digital converter ADC2, and the output end of the first analog-to-digital converter ADC1 and the output end of the second analog-to-digital converter ADC2 respectively transmit the extracted voltage and current signals to the first control part.
Specifically, the first control part controls the first constant current control end I_CTRL1, the second constant current control end I_CTRL2 and the voltage control end V_CTRL according to the extracted voltage and current signals, and the second control part controls the opening and closing states of the first switch S1, the second switch S2, the third switch S3 and the fourth switch S4 in the matrix switch module, so that the simulation of short circuit, open circuit and reverse connection faults of the battery is realized.
Preferably, when the switch is completely opened, the open circuit fault of the power supply is simulated; simulating a power supply short-circuit fault when the first switch S1 and the fourth switch S4 are closed and one of the second switch S2 and the third switch S3 is closed; when the first switch S1 and the fourth switch S4 are opened and the second switch S2 and the third switch S3 are closed, the reverse connection fault of the battery is simulated.
The invention realizes charge and discharge, simulated internal resistance and fault simulation, and specifically comprises the following steps:
(1) The working principle of charge and discharge is used for realizing the simulation of the electrical characteristics of the battery:
the charge-discharge circuit is formed by combining a charge circuit and a discharge circuit, wherein the upper half part (AMP 1, AMP2, AMP3, R1, Q2) is a constant voltage constant current circuit (I_SOURCE) for outputting current to the outside in the figure, and the lower half part (AMP 3, AMP4, AMP5, R2, Q3, Q4) is a constant voltage constant current circuit (I_SINK) for charging current to the inside.
AMP3, Q2, Q3 in the figure form a constant voltage control circuit for charge and discharge, a constant voltage programming voltage v_ctrl and a remote-end extraction v_mon (final end voltage of analog power supply) and AMP3, Q2, Q3 form a closed feedback loop,
when the voltage of the far end is smaller than the set voltage, Q2 is controlled to be opened, and the voltage and the current are output to the outside at the moment, which is equivalent to discharging the battery to the outside until the voltage reaches the set value. At the moment, R1 in the upper half part always collects the current discharged to the outside in real time and outputs the programming voltage of the constant current loop with the first control part
And comparing the I_CTRL1, and if the acquired current is larger than the set current limiting value, outputting a voltage by the error amplifier to limit the conduction degree of the Q1 pipe so as to realize current limiting. Therefore, the circuit can realize short-circuit current-limiting protection, namely, when the outer end is short-circuited, the circuit can limit the current to a certain value, so that the current is not infinitely increased, the machine, an external BMS (battery management system) and the like are protected from being burnt out, and the current-limiting value can be set to be any size.
Similarly, when the outside voltage is higher than the inside voltage, the voltage is amplified by the AMP3, the Q2 is driven to be closed and the Q1 is driven to be opened, and at the moment, the current is filled into the battery to realize the charging process of the analog battery, and the current can be limited through the AMP4, AMP5, i_ctrl2, R2 and Q4 of the lower half part together during the charging, so that the charging current can be limited to a certain value, and the burning out caused by the overlarge current can be avoided.
Meanwhile, voltage and current are collected in real time by a precise ADC (analog digital converter) whether charging or discharging, AMP6 and ADC1 are used for collecting the remote voltage, and AMP7 and ADC2 are used for collecting the current of the whole loop (bipolar can be collected).
The charge-discharge circuit of the first half part can truly simulate the charge-discharge characteristics of the battery, has the characteristics of high precision, high response speed and high reliability, and can ensure the normal operation of the circuit without burning out even if the circuit is connected reversely.
(2) The simulation implementation method of the internal resistances of the battery and the power supply comprises the following steps:
the invention can realize the simulation of the internal resistance of the battery and the power supply, the method is based on the collection of the high-precision voltage and current of the circuit, such as AMP6 and AMP7 in the figure, which are precise operational amplifier,
ADC1, ADC2 are precision analog-to-digital converters, AMP6 and ADC1 are used for the acquisition of the far-end voltage, and AMP7 and ADC2 are used for the current acquisition of the whole loop (bipolar current can be acquired). Because the remote voltage and the loop current can be accurately collected, the first control part (the singlechip) embedded software can set a voltage drop, and the following formula is as follows:
Vout＝Vset-I*Rs，
where Vout is the final voltage, vset is the nominal voltage, I is the charge-discharge loop current,
for example, if the voltage set by us is vset=5v, and the internal resistance of the battery is assumed to be 0.1 Ω, and the current i=1a of the loop (ADC 2 is extracted in real time), then we can adjust the final voltage to vout=4.9v by controlling the programming voltage by the first control portion, so that the simulation of the internal resistance of 0.1 Ω is achieved, which is equivalent to the internal resistance of the battery.
Throughout the process, the programming voltage is adjusted in real time with the loop current to simulate a constant internal resistance of the battery or power supply.
(3) The working principle of the fault simulation circuit comprises the following steps of short circuit, open circuit, reverse connection and the like:
s1, S2, S3 and S4 are relay switches, and can be controlled to be opened and closed through a second control part to simulate various abnormal faults such as short circuit, open circuit, reverse connection and the like, wherein OUT+ is the positive electrode output of the analog power supply, and OUT-is the negative electrode output of the analog power supply.
Normal output: when S1 and S4 are closed and S2 and S3 are opened, the normal output of the power supply is simulated, and the normal working condition of the battery is simulated at the moment;
open circuit: when all of S1, S2, S3 and S4 are disconnected, the open-circuit output of the power supply is simulated, namely the situation that the battery is disconnected is simulated, the open-circuit can also be only disconnected in one side polarity, for example, S1 is closed, S2, S3 and S4 are disconnected, the positive electrode is simulated to be open, S4 is closed, and S1, S2 and S3 are disconnected, and the negative electrode of the battery is simulated to be open;
short circuit: when S1, S4 and S2 (or S3) are closed, the short circuit condition of the battery can be simulated, and because the front-end circuit is provided with the constant-current limiting circuit, even the short circuit current can be limited in a certain range at the moment, and the power supply or the circuit and the BMS of the whole loop can not be burnt out;
polarity reversal: when S1 and S4 are opened, and S2 and S3 are closed, the reverse connection of the batteries is simulated.
The reliable bipolar charge-discharge circuit of the first half part of the circuit and the high-efficiency flexible matrix switch circuit of the rear end are organically combined, the electrical characteristic simulation of the battery is realized through the circuit, the fault simulation of open circuit, short circuit, reverse connection and the like of the whole BMS test is also realized, the use of the traditional battery in the test field of the BMS and the like is perfectly replaced, and the test of various fault simulations is easily realized.
Although the invention has been described above with reference to embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the invention. It is therefore intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that it is the following claims, including all equivalents, that are intended to define the spirit and scope of this invention. The above examples should be understood as illustrative only and not limiting the scope of the invention. Various changes and modifications to the present invention may be made by one skilled in the art after reading the teachings herein, and such equivalent changes and modifications are intended to fall within the scope of the invention as defined in the appended claims.
Claims (3)
1. An analog power supply for a circuit implementation, characterized by: the external charging and the internal discharging can be performed, the power failure is simulated, and the internal resistance of the power is simulated; mainly comprises the following steps: the device comprises an output current constant-current control part, a constant voltage control part, a current constant-current control part, a remote voltage extraction part, a loop current extraction part, a first control part, a second control part, a matrix switch and a load;
the output current constant-current control part consists of a first operational amplifier, a second operational amplifier, a first resistor and a first PMOS tube; the constant voltage control part consists of a third operational amplifier, a first NMOS tube and a second PMOS tube; the current constant current control part consists of a fourth operational amplifier, a fifth operational amplifier, a second NMOS tube and a second resistor; the remote voltage recovery part consists of a sixth operational amplifier and a first analog-to-digital converter; the loop current recovery part consists of a third resistor, a seventh operational amplifier and a second analog-to-digital converter, the matrix switch consists of a first switch, a second switch, a third switch and a fourth switch, the first control part controls the constant current and constant voltage control ends by receiving recovery current and voltage, and the second control part controls the opening and closing of four switches in the matrix switch;
the specific circuit connection relation of the analog power supply is as follows: one end of the first resistor R1 is connected with the bus power +VBUS and one input end of the first operational amplifier AMP1, the other end of the first resistor R1 is connected with the source electrode of the first PMOS tube Q1 and the other input end of the first budget amplifier AMP1, the output end of the first operational amplifier AMP1 is connected with one input end of the second operational amplifier AMP2, the other input end of the second operational amplifier AMP2 is connected with the first constant current control end I_CTR1, the output end of the second operational amplifier AMP2 is connected with the grid electrode of the first PMOS tube Q1, the drain electrode of the first PMOS tube Q1 is connected with the drain electrode of the first NMOS tube Q2, the source electrode of the first NMOS tube Q2 is connected with the source electrode of the second PMOS tube Q3, the first switch S1 and one end of the second switch S2 in the matrix switch module, the grid electrode of the first NMOS tube Q2 is connected with the grid electrode of the second PMOS tube Q3 and the output end of the third operational amplifier AMP3, the two input ends of the third operational amplifier AMP3 are respectively connected with a constant voltage control end V_CTRL and a recovery voltage V_MON output by the output end of the sixth operational amplifier AMP6, the drain electrode of the second PMOS tube Q3 is connected with the drain electrode of the second NMOS tube Q4, the grid electrode of the second NMOS tube Q4 is connected with the output end of the fourth operational amplifier AMP4, the source electrode of the second NMOS tube Q4 is connected with one end of a second resistor and one input end of the fifth operational amplifier APM5, the other end of the second resistor R2 is connected with the other input end of the fifth operational amplifier APM5 and the ground wire, one input end of the fourth operational amplifier AMP4 is connected with the output end of the fifth operational amplifier APM5, one end of the third resistor R3 is connected with the ground wire, one input end of the sixth operational amplifier AMP6, the other end of the third switch S3 and the fourth switch S4 in the matrix switch module, the other end of the first switch S1 is connected with the other end of the third switch S3, the load positive terminal and one input end of the seventh operational amplifier AMP7, the other end of the second switch S2 is connected with the other end of the fourth switch S4, the load negative terminal and the other input end of the seventh operational amplifier AMP7, the output end of the sixth operational amplifier AMP6 is connected with the input end of the first analog-to-digital converter ADC1, the output end of the seventh operational amplifier AMP7 is connected with the input end of the second analog-to-digital converter ADC2, and the output end of the first analog-to-digital converter ADC1 and the output end of the second analog-to-digital converter ADC2 respectively transmit the extracted voltage and current signals to the first control part;
the first control part controls a first constant current control end I_CTRL1 of the output current constant current control part, a second constant current control end I_CTRL2 of the filling current constant current control part and a voltage control end V_CTRL of the constant voltage control part according to the extracted voltage and current signals, and the second control part controls the opening and closing states of a first switch S1, a second switch S2, a third switch S3 and a fourth switch S4 in the matrix switch module to realize simulation of short circuit, open circuit and reverse connection faults of the battery;
when the first switch S1, the second switch S2, the third switch S3 and the fourth switch S4 are all disconnected, the open circuit fault of the power supply is simulated;
simulating a power supply short-circuit fault when the first switch S1 and the fourth switch S4 are closed and one of the second switch S2 and the third switch S3 is closed;
when the first switch S1 and the fourth switch S4 are opened and the second switch S2 and the third switch S3 are closed, the reverse connection fault of the battery is simulated.
2. An analog power supply according to claim 1, characterized in that: the load is at least one of a battery, a super capacitor, or a BMS.
3. An analog power supply according to claim 1, characterized in that: the first control part in the analog power supply precisely controls the output current constant current control part, the constant voltage control part and the current constant current control part according to the current and voltage signals extracted by the remote voltage extraction part and the loop current extraction part, controls the output voltage at two ends of the load and realizes the simulation of the internal resistance of the analog power supply.
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)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811210625.5A CN109307842B (en) | 2018-10-17 | 2018-10-17 | Analog power supply for circuit realization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109307842A CN109307842A (en) | 2019-02-05 |
| CN109307842B true CN109307842B (en) | 2024-04-12 |
Family
ID=65225348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811210625.5A Active CN109307842B (en) | 2018-10-17 | 2018-10-17 | Analog power supply for circuit realization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109307842B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112730930B (en) * | 2020-12-16 | 2021-08-24 | 深圳市昂盛达电子有限公司 | Analog battery |
| CN112816809B (en) * | 2020-12-29 | 2022-09-13 | 中通客车股份有限公司 | Power battery simulation method and system 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 |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4423378A (en) * | 1981-12-04 | 1983-12-27 | Bear Automotive Service Equipment Company | Automotive battery test apparatus |
| DE4113258A1 (en) * | 1991-04-23 | 1992-10-29 | Siemens Ag | Analog power control circuitry - has short circuit protection circuit limiting control output signal for each voltage value |
| JP2002122643A (en) * | 2000-10-16 | 2002-04-26 | Denso Corp | Voltage detecting device for cell set |
| US8198863B1 (en) * | 2006-12-13 | 2012-06-12 | Maxim Integrated Products, Inc. | Model-based battery fuel gauges and methods |
| CN102520358A (en) * | 2011-12-02 | 2012-06-27 | 苏州冠硕新能源有限公司 | Battery parameter detection method and system |
| CN103149538A (en) * | 2013-02-19 | 2013-06-12 | 合肥国轩高科动力能源股份公司 | Method for simulating internal short circuit of single battery in battery pack |
| CN104064833A (en) * | 2014-06-24 | 2014-09-24 | 清华大学 | Method for triggering short circuit in battery |
| CN104104388A (en) * | 2014-08-01 | 2014-10-15 | 新誉集团有限公司 | Analog-to-digital conversion circuit |
| CN104868755A (en) * | 2015-06-12 | 2015-08-26 | 江苏同芯电气科技有限公司 | High-power bidirectional multi-way direct-current simulation power supply |
| CN205880181U (en) * | 2016-06-29 | 2017-01-11 | 上海松岳电源科技有限公司 | High -pressure simulation tests system of battery package |
| CN108204826A (en) * | 2016-12-19 | 2018-06-26 | 徐州新隆全电子科技有限公司 | Using the interface system of sin/cos encoder |
| CN207817178U (en) * | 2018-01-29 | 2018-09-04 | 武汉嘉博汇科技实业有限公司 | A kind of linear power source circuit failure simulation device based on switching |
| CN207964981U (en) * | 2018-02-27 | 2018-10-12 | 北京智行鸿远汽车有限公司 | A kind of power battery simulation system for adjusting power supply based on string |
| CN208969215U (en) * | 2018-10-17 | 2019-06-11 | 湖南恩智测控技术有限公司 | A kind of analog power that circuit is realized |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7557658B2 (en) * | 2004-07-07 | 2009-07-07 | Texas Instruments Incorporated | Low voltage amplifier having a class-AB control circuit |
-
2018
- 2018-10-17 CN CN201811210625.5A patent/CN109307842B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4423378A (en) * | 1981-12-04 | 1983-12-27 | Bear Automotive Service Equipment Company | Automotive battery test apparatus |
| DE4113258A1 (en) * | 1991-04-23 | 1992-10-29 | Siemens Ag | Analog power control circuitry - has short circuit protection circuit limiting control output signal for each voltage value |
| JP2002122643A (en) * | 2000-10-16 | 2002-04-26 | Denso Corp | Voltage detecting device for cell set |
| US8198863B1 (en) * | 2006-12-13 | 2012-06-12 | Maxim Integrated Products, Inc. | Model-based battery fuel gauges and methods |
| CN102520358A (en) * | 2011-12-02 | 2012-06-27 | 苏州冠硕新能源有限公司 | Battery parameter detection method and system |
| CN103149538A (en) * | 2013-02-19 | 2013-06-12 | 合肥国轩高科动力能源股份公司 | Method for simulating internal short circuit of single battery in battery pack |
| CN104064833A (en) * | 2014-06-24 | 2014-09-24 | 清华大学 | Method for triggering short circuit in battery |
| CN104104388A (en) * | 2014-08-01 | 2014-10-15 | 新誉集团有限公司 | Analog-to-digital conversion circuit |
| CN104868755A (en) * | 2015-06-12 | 2015-08-26 | 江苏同芯电气科技有限公司 | High-power bidirectional multi-way direct-current simulation power supply |
| CN205880181U (en) * | 2016-06-29 | 2017-01-11 | 上海松岳电源科技有限公司 | High -pressure simulation tests system of battery package |
| CN108204826A (en) * | 2016-12-19 | 2018-06-26 | 徐州新隆全电子科技有限公司 | Using the interface system of sin/cos encoder |
| CN207817178U (en) * | 2018-01-29 | 2018-09-04 | 武汉嘉博汇科技实业有限公司 | A kind of linear power source circuit failure simulation device based on switching |
| CN207964981U (en) * | 2018-02-27 | 2018-10-12 | 北京智行鸿远汽车有限公司 | A kind of power battery simulation system for adjusting power supply based on string |
| CN208969215U (en) * | 2018-10-17 | 2019-06-11 | 湖南恩智测控技术有限公司 | A kind of analog power that circuit is realized |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109307842A (en) | 2019-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109307842B (en) | Analog power supply for circuit realization | |
| US11448683B2 (en) | Insulation detection circuit, detection method and battery management system | |
| CN105071453A (en) | Battery management system | |
| CN105429226A (en) | High-capacity charging-discharging battery management system | |
| KR940701546A (en) | Method and device for charging and testing the battery | |
| CN201311486Y (en) | Detection device for terminal power | |
| CN104122884A (en) | Simulation test device of battery management system | |
| CN101144837A (en) | Voltage detection circuit and control method | |
| CN101728862A (en) | Charging circuit and charging current transformation method | |
| Kim et al. | Series-connected reconfigurable multicell battery: A novel design towards smart batteries | |
| CN208969215U (en) | A kind of analog power that circuit is realized | |
| CN100440683C (en) | Battery-operated equipment | |
| CN102647010B (en) | Four-series-lithium-battery-cell charge equalization control chip and control circuit thereof | |
| CN204794046U (en) | Polymer battery protection shield circuit | |
| CN109307843B (en) | Analog power supply for circuit realization | |
| CN208001163U (en) | A kind of battery charge-discharge circuit with short circuit and reversal connection protection function | |
| CN106787089B (en) | Energy storage and release method of automobile starting power supply | |
| CN1889324B (en) | Battery secondary balancing charging apparatus and method | |
| CN208904636U (en) | The heat memory protection circuit of breaker controller | |
| RU61464U1 (en) | AUTONOMOUS AUTOMATIC DEVICE FOR POWER-BIT DISCHARGE OF SILVER-ZINC BATTERIES AND BATTERIES OF OTHER ELECTROCHEMICAL SYSTEMS | |
| CN106230075B (en) | A kind of display methods of safety monitoring battery capacity of mobile terminal | |
| CN206893748U (en) | A kind of battery voltage acquisition system and acquisition control system | |
| CN219224939U (en) | Insulation resistance calibration device and vehicle | |
| CN219456355U (en) | Analog battery circuit | |
| CN208969220U (en) | A kind of analog power that circuit is realized |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |