CN115902478A - Simulation battery device - Google Patents
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- CN115902478A CN115902478A CN202211510158.4A CN202211510158A CN115902478A CN 115902478 A CN115902478 A CN 115902478A CN 202211510158 A CN202211510158 A CN 202211510158A CN 115902478 A CN115902478 A CN 115902478A
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- 238000004088 simulation Methods 0.000 title claims abstract description 70
- 239000003381 stabilizer Substances 0.000 claims abstract description 35
- 230000009466 transformation Effects 0.000 claims abstract description 33
- 238000002955 isolation Methods 0.000 claims abstract description 14
- 238000012360 testing method Methods 0.000 abstract description 30
- 230000003287 optical effect Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 238000012795 verification Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a battery simulation device, which comprises a direct current power supply and a plurality of single battery simulation modules, wherein each single battery simulation module comprises: the device comprises a voltage transformation device, an independent PWM controller, an operational amplifier and a linear voltage stabilizer; the direct current power supply is connected with the voltage transformation device, and the voltage transformation device is used for changing the reference ground of the direct current power supply and carrying out electrical isolation; the voltage transformation device is connected with the power supply end of the operational amplifier, and is also connected with the input end of the linear voltage stabilizer and used for providing input voltage for the linear voltage stabilizer; the output end of the independent PWM controller is connected with the input end of the operational amplifier, the output end of the operational amplifier is connected with the adjusting end of the linear voltage stabilizer, the independent PWM controller is used for providing reference voltage for the linear voltage stabilizer through the operational amplifier, and the linear voltage stabilizer is used for outputting analog voltage according to the reference voltage so as to simulate the output of a single battery. According to the technical scheme provided by the invention, the testing flexibility when the battery pack is required to perform BMS testing is improved.
Description
Technical Field
The invention relates to the field of BMS testing, in particular to a battery simulation device.
Background
The BMS (Battery Management System) during the development stage involves many test verification steps, in which a Battery pack is required to participate in the test. On one hand, the battery pack has certain volume and weight, occupies space and is inconvenient to carry; on the other hand, the voltage of the battery pack cannot be adjusted, and the related tests aiming at different voltage values cannot be quickly met, so that much inconvenience is brought to the test verification work.
Disclosure of Invention
In view of this, the embodiment of the invention provides a battery simulation device, so that the testing flexibility when a battery pack is required to perform a BMS test is improved.
According to a first aspect, the present invention provides an analog battery device, comprising a dc power supply and a plurality of single battery analog modules, the single battery analog modules comprising: the device comprises a voltage transformation device, an independent PWM controller, an operational amplifier and a linear voltage stabilizer; the direct-current power supply is connected with the voltage transformation device, and the voltage transformation device is used for changing the reference ground of the single battery simulation module and carrying out electrical isolation; the transformation device is connected with the power supply end of the operational amplifier and used for providing a working power supply for the operational amplifier, and the transformation device is connected with the input end of the linear voltage stabilizer and used for providing input voltage for the linear voltage stabilizer; the output end of the independent PWM controller is connected with the input end of the operational amplifier, the output end of the operational amplifier is connected with the adjusting end of the linear voltage stabilizer, the independent PWM controller is used for providing reference voltage for the linear voltage stabilizer through the operational amplifier, and the linear voltage stabilizer is used for changing input voltage according to the reference voltage to output analog voltage so as to simulate the output of a single battery.
Optionally, the dc power supply is a 5V power supply.
Optionally, the voltage transformation device comprises: isolating the power chip and the transformer; the input end of the isolation power supply chip is connected with the direct-current power supply, the output end of the isolation power supply chip is connected with the transformer, and the output end of the transformer is connected with the power supply end of the operational amplifier and the input end of the linear voltage stabilizer.
Optionally, the isolated power supply chip is model number VPS8702.
Optionally, the transformer is of the type VPT87BB-01C.
Optionally, the single-battery simulation module further includes an optical coupler, an input end of the optical coupler is connected to an output end of the independent PWM controller, an output end of the optical coupler is connected to an input end of the operational amplifier, and a power supply end of the optical coupler is connected to the voltage transformation device.
Optionally, the apparatus further includes a shared PWM controller, and the shared PWM controller is optically coupled to the optical couplers in the individual battery simulation modules.
Optionally, the plurality of single battery simulation modules are marked with a preset sequence, and a reference voltage obtained by changing a reference ground of a single battery simulation module by a voltage transformation device in the current single battery simulation module is the same as an analog voltage output by a previous single battery simulation module in the preset sequence.
Optionally, the linear regulator is of model TL5209DR.
Optionally, the type of the optical coupler is LTV-217. The technical scheme provided by the application has the following advantages:
the technical scheme that this application provided, provides the output that a simulation battery device comes simulation battery, and this simulation battery device includes DC power supply and a plurality of single section battery analog module, and single section battery analog module includes: the device comprises a voltage transformation device, an independent PWM controller, an operational amplifier and a linear voltage stabilizer; the direct-current power supply is connected with the voltage transformation device, and the voltage transformation device is used for changing the reference ground of the single battery simulation module and carrying out electrical isolation; the transformation device is connected with the power supply end of the operational amplifier and used for providing a working power supply for the operational amplifier, and the transformation device is connected with the input end of the linear voltage stabilizer and used for providing input voltage for the linear voltage stabilizer; the output end of the independent PWM controller is connected with the input end of the operational amplifier, the output end of the operational amplifier is connected with the adjusting end of the linear voltage stabilizer, the independent PWM controller is used for providing reference voltage for the linear voltage stabilizer through the operational amplifier, and the linear voltage stabilizer is used for outputting analog voltage according to the reference voltage so as to simulate the output of a single battery. Through the simulation battery device that this application provided, only need provide a DC power supply can simulate out the battery package of an adjustable single section voltage, compare with current lithium cell package power supply, this scheme not only can simulate battery package voltage, can change every section voltage numerical value moreover at will, and not only small quality is light, and the power supply is convenient moreover, can satisfy each item demand of test fast, has also improved the flexibility of work such as test verification simultaneously.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:
FIG. 1 is a schematic diagram of a simulated battery apparatus according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a cell simulation module in one embodiment of the present invention;
FIG. 3 shows another schematic diagram of a cell simulation module in one embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating the connection relationship between a power isolation chip and a transformer according to an embodiment of the present invention;
fig. 5 shows a schematic diagram of a linear regulator according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 and 2, in one embodiment, an analog battery device includes a dc power source 001 and a plurality of single battery analog modules, each of which includes: a transformer 002, an independent PWM controller 003, an operational amplifier 004, and a linear regulator 005; wherein, the direct current power supply 001 is connected with the transformer 002, and the transformer 002 is used for changing the reference ground of the single battery simulation module and carrying out electrical isolation; the transformation device 002 is connected with the power supply end of the operational amplifier 004 and used for providing a working power supply for the operational amplifier 004, and the transformation device 002 is connected with the input end of the linear voltage stabilizer 005 and used for providing an input voltage for the linear voltage stabilizer 005; the output end of the independent PWM controller 003 is connected to the input end of the operational amplifier 004, the output end of the operational amplifier 004 is connected to the adjustment end of the linear regulator 005, the independent PWM controller 003 is configured to provide a reference voltage to the linear regulator 005 through the operational amplifier 004, and the linear regulator 005 is configured to output an analog voltage by changing the input voltage according to the reference voltage, so as to simulate the output of a single battery.
Specifically, the embodiment of the invention simulates one battery through a single battery simulation module, and simulates a battery pack containing a plurality of batteries through a plurality of single battery simulation modules integrated on a tooling plate, so as to realize light and flexible battery test. Each single battery analog module is powered by a common direct current power supply 001 and inputs an adjusting signal based on an independent PWM controller 003 to output an adjustable analog voltage of a single battery. In this embodiment, the dc power supply 001 adopts a +5V power supply, and a user may also adopt dc power supplies with other voltages according to actual needs, so as to simulate more batteries with different models.
Specifically, the +5V dc power supply 001 is connected to the transformer 002, and the reference ground of the single cell analog module is changed and electrically isolated by the transformer 002. In particular, for a real battery pack, the batteries inside the real battery pack are usually connected in a certain way, which necessarily involves the case that the positive pole of one battery is connected with the negative pole of another battery, for example, the negative pole of the second battery is connected with the positive pole of the first battery, and the positive pole of the second battery is connected with the negative pole of the third battery. If all the single battery simulation modules share one reference ground of the direct current power supply, the device may be short-circuited, and the connection characteristics of the single batteries in the battery pack are not met. Therefore, in the embodiment of the invention, the reference ground of the single battery simulation module is changed through the voltage transformation device 002, so that the reference ground of the current single battery simulation module can be changed into the analog voltage output by other single battery simulation modules, and the connection characteristic between the batteries in the battery pack is simulated. Moreover, the transformer device can also play a role in electrical isolation, so that the current of the 5V direct current power supply is prevented from directly passing through, and the situation of insulation damage is avoided. Then, the 5V voltage output by the transformer device is sent to the linear regulator 005, and at the same time, the transformer device 002 outputs the voltage to the operational amplifier 004, and provides a working power supply for the operational amplifier 004 to start the operation of the operational amplifier 004, for example, a DCDC circuit is selected as the transformer device 002, in practical application, a user can configure the specific circuit of the transformer device 002 according to actual needs, as long as the configured transformer device 002 can change the reference ground of the current single battery simulation module into the output of other single battery simulation modules, and the reference ground of the +5V dc power supply is not directly used, so that the battery connection condition in the battery pack can be simulated by using the transformer device 002, and the specific circuit structure of the transformer device 002 is not specially limited in this embodiment.
The independent PWM controller 003 is connected to the operational amplifier 004, the independent PWM controller 003 can output PWM square waves with different duty ratios according to parameters set by a user, so that voltage in a range of 0-5V is output through the independent PWM controller 003, and the signal is input into the operational amplifier 004 to be amplified to obtain reference voltage for adjusting the output of the linear voltage regulator. In this embodiment, the voltage of 0-2.5V is provided to the positive input terminal of the operational amplifier 004 by the independent PWM controller 003, the operational amplifier 004 is configured in a voltage follower manner, so that the output of the operational amplifier 004 also changes stably in the 0-2.5V range, and the output of the operational amplifier 004 is used as a reference ground of the adjustment terminal of the linear regulator 005, that is, the feedback input voltage of the adjustment terminal of the linear regulator 005 can be changed by the adjustment of the independent PWM controller 003. In cooperation with the resistor voltage divider network in the linear regulator 005, the linear regulator 005 can output different analog voltages by utilizing the linear relationship between the output terminal and the adjustment terminal. According to the embodiment of the invention, a plurality of single battery simulation modules are combined on one tooling plate, so that the output voltage of a set of battery pack can be simulated. For example, in the embodiment of the invention, 16 single battery simulation modules are integrated in the simulation battery device, so that the output of one 16 battery packs can be simulated, and in practical application, a user can adjust the number of the single battery simulation modules in the simulation battery device according to actual needs to simulate battery packs with different sizes, so as to improve the flexibility of the BMS test.
Compared with the existing test scheme of the lithium battery pack, the battery pack voltage simulation test device provided by the embodiment of the invention has the advantages that only one +5V power supply is needed, the battery pack voltage can be simulated, the voltage value of each battery can be changed at will, used electronic elements are small in size and light in weight, power supply is convenient, various requirements of testing can be met rapidly, and meanwhile, the flexibility of work such as test verification is improved.
Specifically, in an embodiment of the present invention, in the battery simulation apparatus provided in the embodiment of the present invention, a plurality of integrated single battery simulation modules are marked with a preset sequence, and when the voltage transformation device 002 in the current single battery simulation module changes the voltage of the dc power supply 001, it is required to ensure that the changed reference voltage is the same as the analog voltage output by the previous single battery simulation module in the preset sequence.
Specifically, for a real battery pack, the batteries inside the real battery pack are usually connected in series, the cathode of the second battery is connected to the anode of the first battery, and the anode of the second battery is connected to the cathode of the third battery. Similarly, the single battery simulation module is regarded as a battery, and the output of the single battery simulation module is provided with positive and negative poles, the positive pole of the single battery simulation module is opposite to the negative pole of the next battery, and the negative pole of the single battery simulation module is opposite to the positive pole of the previous battery (generally, the output of the positive pole is called as output voltage). Therefore, the current output voltage is referred to as the reference ground of the next battery, or the current output voltage is obtained by referring to the voltage of the previous battery. Therefore, in order to more accurately simulate the real battery pack in the series connection scene, the embodiment of the invention marks the preset sequence of each single battery simulation module, and adjusts the reference ground voltage of the current single battery simulation module to be the same as the analog voltage output by the previous single battery simulation module by using the voltage transformation device 002 of the current single battery simulation module as the standard of the analog voltage output by the previous single battery simulation module in the preset sequence, so that the series connection relationship between the batteries in the battery pack can be more accurately simulated, the analog voltage output by each single battery simulation module is more accurate, and the accuracy of the subsequent BMS test is further improved.
Specifically, as shown in fig. 3, in an embodiment, the transformer 002 includes an isolated power chip 006 and a transformer 007; the input end of the isolated power chip 006 is connected to the dc power supply 001, the output end of the isolated power chip 006 is connected to the transformer 007, and the output end of the transformer 007 is connected to the power supply end of the operational amplifier 004 and the input end of the linear regulator 005.
Specifically, in the present embodiment, the transformer 002 is composed of the isolated power chip 006 and the transformer 007, and the isolated power chip 006 is used for electrical isolation, mainly for input overvoltage protection, sustainable short-circuit protection, and over-temperature protection. The isolated power chip 006 also serves as a driving chip of the transformer 007, one input of the +5V dc power 001 is changed into two adjustable outputs, and the driving transformer 007 converts the voltage of the reference ground of the single-cell battery analog module into the same magnitude as the analog voltage output by the previous single-cell battery analog module. As shown in fig. 4, the isolated power chip 006 of the present embodiment is VPS8702, and the transformer 007 is VPT87BB-01C. The VPS8702 is a DCDC isolated switching power supply integrated controller suitable for a full-bridge topology structure, and the transformer 007 in a bridge driving mode has fewer windings and low cost. The application of 3V-6V is satisfied, and the compatibility is strong. Two N-channel power MOSFETs and two P-channel power MOSFETs are integrated inside the VPS8702 to form a bridge connection mode. The integrated oscillator in the chip provides a pair of high-precision complementary signals, so that the high symmetry of the two paths of power MOSFET drives can be effectively ensured, and the circuit is prevented from generating magnetic biasing in the working process. Multiple protection modes are integrated inside the VPS8702, a high-precision dead zone control circuit is designed inside the VPS8702 to ensure that the common phenomenon does not occur under various working conditions, and the chip integrates over-current detection protection and over-temperature protection to avoid damaging devices under abnormal conditions such as output short circuit of a switching power supply. The VPT87BB-01C and the VPS8702 are used in combination, so that a non-stabilized power supply solution with 5V input, 3.3-5V output and power not more than 2W can be realized, and the non-stabilized power supply can be used in various occasions needing isolated power supply.
Specifically, as shown in fig. 3, in an embodiment, the single-cell battery analog module provided in the embodiment of the present invention further includes an optical coupler 008, an input end of the optical coupler 008 is connected to an output end of the independent PWM controller 003, an output end of the optical coupler 008 is connected to an input end of the operational amplifier 004, and a power supply end of the optical coupler 008 is connected to the voltage transformation device 002.
Specifically, this embodiment carries out signal isolation through setting up opto-coupler 008 between independent PWM controller 003 and operational amplifier 004, keeps apart input and output each other based on opto-coupler 008, characteristics such as signal transmission has unidirectionality to improve the electric insulating ability of circuit and PWM signal's interference killing feature, with the stability and the accuracy of further guaranteeing operational amplifier 004 output reference voltage, and then improve the accuracy of the analog voltage of single section battery analog module output. In one embodiment, an operational amplifier model LTV-217 with optocouplers 008 and AS321KTR-G1 may be used, for example only, and not for limitation.
Specifically, as shown in fig. 5, in an embodiment, the linear regulator 005 adopts TL5209DR, and outputs an analog voltage of 0-2.5V through a resistor voltage dividing network thereof to simulate the output of a single battery, wherein the relationship between the analog voltage output by the linear regulator 005 and the input voltage of the operational amplifier 004 is shown in the following formula
V OUT ＝1.242V(R1+R2)/R1+Vo
In the formula, V OUT The analog voltage output by the linear voltage stabilizer 005 is represented to simulate the output of a single battery, two resistors R1 and R2 are resistors forming a resistor voltage division network in the figure 5 and are connected with a voltage stabilizing chip C1 comprising a three-stage voltage stabilizing tube, and Vo represents the voltage output by the operational amplifier 004 to the adjusting end of the linear voltage stabilizer 005. The output voltage V of the linear voltage regulator 005 is adjusted by the linear relation of the above formula through the adjustment of the independent PWM controller 003 to change the Vo OUT The size of (2). Implementation ofThe function of simulating the output of a single battery based on the +5V direct-current power supply 001 can be used for testing the BMS under the condition that a real battery pack is not used, the output voltage of each simulated battery is adjustable, and the flexibility of testing is improved compared with the real battery pack.
In addition, in an embodiment, the analog battery device provided in the embodiment of the present invention further includes a shared PWM controller, where the shared PWM controller is different from the independent PWM controller 003, and the shared PWM controller is commonly used by each single battery analog module and is connected to the optical coupler 008 in each single battery analog module. The PWM controller can send out adjusting signals to each single battery simulation module simultaneously, so that each single battery simulation module can be used as a whole to further simulate the voltage output condition of the whole battery pack, more test schemes can be provided for BMS test, and the flexibility of the BMS test is further improved.
Based on each component, when a user needs to perform BMS test, firstly, the +5V direct-current power supply is input for the tooling board of the simulation battery device, whether the voltage output by the simulation battery device meets the voltage required by the BMS test is judged, if the voltage does not meet the test requirement, the independent PWM controller 003 or the shared PWM controller is adjusted until the voltage output by each single-battery simulation module in the simulation battery device meets the BMS test requirement, and then the BMS test is performed.
Through each above-mentioned component, the technical scheme that this application provided provides an output that battery device simulates the battery is provided in simulation, and this simulation battery device includes DC power supply 001 and a plurality of single section battery simulation module, and single section battery simulation module includes: a transformer 002, an independent PWM controller 003, an operational amplifier 004, and a linear regulator 005; the direct-current power supply 001 is connected with the transformer 002, and the transformer 002 is used for changing the reference ground of the single-battery simulation module and carrying out electrical isolation; the transformation device 002 is connected with the power supply end of the operational amplifier 004 and used for providing a working power supply for the operational amplifier 004, and the transformation device 002 is connected with the input end of the linear voltage stabilizer 005 and used for providing an input voltage for the linear voltage stabilizer 005; the output end of the independent PWM controller 003 is connected with the input end of the operational amplifier 004, the output end of the operational amplifier 004 is connected with the adjusting end of the linear voltage stabilizer 005, the independent PWM controller 003 is used for providing reference voltage for the linear voltage stabilizer 005 through the operational amplifier 004, and the linear voltage stabilizer 005 is used for outputting analog voltage according to the reference voltage so as to simulate the output of a single battery. Through the simulation battery device that this application provided, only need provide a DC power supply 001 can simulate out the battery package of an adjustable single section voltage, compare with current lithium cell package power supply, this scheme not only can simulate battery package voltage, can change every section voltage numerical value moreover at will, not only small quality is light, and the power supply is convenient moreover, can satisfy each item demand of test fast, has also improved the flexibility of work such as test verification simultaneously.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (10)
1. The battery simulation device is characterized by comprising a direct-current power supply and a plurality of single battery simulation modules, wherein the single battery simulation modules comprise: the device comprises a voltage transformation device, an independent PWM controller, an operational amplifier and a linear voltage stabilizer;
the direct-current power supply is connected with the voltage transformation device, and the voltage transformation device is used for changing the reference ground of the single battery simulation module and carrying out electrical isolation;
the transformation device is connected with the power supply end of the operational amplifier and used for providing a working power supply for the operational amplifier, and the transformation device is connected with the input end of the linear voltage stabilizer and used for providing input voltage for the linear voltage stabilizer;
the output end of the independent PWM controller is connected with the input end of the operational amplifier, the output end of the operational amplifier is connected with the adjusting end of the linear voltage stabilizer, the independent PWM controller is used for providing reference voltage for the linear voltage stabilizer through the operational amplifier, and the linear voltage stabilizer is used for changing input voltage according to the reference voltage to output analog voltage so as to simulate the output of a single battery.
2. The apparatus of claim 1, wherein the dc power source is a 5V power source.
3. The apparatus of claim 1, wherein the voltage transformation apparatus comprises: isolating the power chip and the transformer;
the input end of the isolation power supply chip is connected with the direct-current power supply, the output end of the isolation power supply chip is connected with the transformer, and the output end of the transformer is respectively connected with the power supply end of the operational amplifier and the input end of the linear voltage stabilizer.
4. The apparatus of claim 3, wherein the isolated power chip is model number VPS8702.
5. The apparatus of claim 3, wherein the transformer is of the type VPT87BB-01C.
6. The device according to claim 1, wherein the single battery analog module further comprises an optocoupler, an input end of the optocoupler is connected with an output end of the independent PWM controller, an output end of the optocoupler is connected with an input end of the operational amplifier, and a power supply end of the optocoupler is connected with the voltage transformation device.
7. The apparatus of claim 6, further comprising a shared PWM controller optically coupled to each of the single cell analog modules.
8. The apparatus of claim 1, wherein the plurality of single battery simulation modules are marked with a preset sequence, and a reference voltage obtained by changing a reference ground of a single battery simulation module by the voltage transformation device in a current single battery simulation module is the same as an analog voltage output by a previous single battery simulation module in the preset sequence.
9. The apparatus of claim 1 wherein the linear regulator is of the type TL5209DR.
10. The device of claim 6, wherein the optocoupler is of type LTV-217.
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| CN202211510158.4A CN115902478A (en) | 2022-11-29 | 2022-11-29 | Simulation battery device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116660729A (en) * | 2023-05-31 | 2023-08-29 | 安徽固太新能源有限公司 | Battery simulation device |
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| CN116660729A (en) * | 2023-05-31 | 2023-08-29 | 安徽固太新能源有限公司 | Battery simulation device |
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Address after: 215129 West of Building 28, No. 2, Mount Taishan Road, Suzhou High tech Zone, Suzhou, Jiangsu Province Applicant after: Suzhou Jingkong Energy Technology Co.,Ltd. Address before: 215129 West, building 28, Hefeng Industrial Park, No.2, Taishan Road, high tech Zone, Suzhou City, Jiangsu Province Applicant before: SUZHOU JK ENERGY Ltd. |
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| CB02 | Change of applicant information |