CN210165997U - Battery collection module that can assemble - Google Patents
Battery collection module that can assemble Download PDFInfo
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- CN210165997U CN210165997U CN201921425814.4U CN201921425814U CN210165997U CN 210165997 U CN210165997 U CN 210165997U CN 201921425814 U CN201921425814 U CN 201921425814U CN 210165997 U CN210165997 U CN 210165997U
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Abstract
The utility model relates to a battery acquisition module capable of being assembled, which comprises a main control part and a functional part, wherein the main control part comprises a processor, the functional part comprises a power supply conversion circuit, a constant voltage output circuit and at least one acquisition unit, the input end of the power supply conversion circuit is connected with the two ends of a monitored battery, each acquisition unit comprises an acquisition element and a voltage conversion circuit, the acquisition element acquires an acquisition signal, the acquisition signal is input into the voltage conversion circuit, the voltage conversion circuit is connected with an A/D conversion circuit, the A/D conversion circuit outputs a digital signal, the constant voltage output circuit outputs identification voltage, the identification voltage is input into the processor, the processor determines the acquisition type of the functional part according to the identification voltage and processes the digital signal output by the A/D conversion circuit according to the acquisition type, and obtaining the monitoring value of the monitored battery. The utility model discloses saved repeated development process, reduce cost and later maintenance are convenient.
Description
Technical Field
The utility model relates to a can carry out battery collection module of equipment according to the monitoring demand belongs to the data acquisition field.
Background
The existing data acquisition modules, such as a temperature acquisition module, a voltage acquisition module, a humidity acquisition module, a temperature and voltage combined acquisition module, a temperature and humidity combined acquisition module and the like, are generally customized and developed according to customer requirements, so that the development period is long, the research and development cost of equipment is increased, and meanwhile, due to the commonality among the acquisition modules, a large amount of repeated development processes exist in the customized development.
For example, an existing large-capacity battery pack is composed of a plurality of batteries, the voltage of the battery pack is 1.2V, 2V, 6V, 9V, 12V, and the like, and regardless of the voltage of the battery pack, hardware circuits of a data processing part for monitoring the core of an acquisition module of each battery are the same, so that a large amount of repeated development time is required if the battery pack is customized and developed one by one.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a battery collection module that can assemble, including main control unit and functional unit, select functional unit according to the collection demand, constitute complete collection module with functional unit and main control unit equipment back, saved a large amount of redevelopment processes, reduce cost and later maintenance are convenient.
The utility model discloses technical scheme one as follows:
an assembled battery acquisition module comprises a main control unit and a functional unit, wherein the main control unit comprises a processor, and an A/D conversion circuit or an external A/D conversion circuit is arranged in the processor; the functional components comprise a power supply conversion circuit, a constant voltage output circuit and at least one acquisition unit, wherein the input end of the power supply conversion circuit is connected with two ends of a monitored battery, the output of the power supply conversion circuit provides working voltage for an acquisition module, each acquisition unit comprises an acquisition element and a voltage conversion circuit, the acquisition element monitors the battery, acquires an acquisition signal, the acquisition signal is input into the voltage conversion circuit, the voltage conversion circuit is connected with the A/D conversion circuit, the A/D conversion circuit outputs a digital signal, the constant voltage output circuit outputs identification voltage for identifying the acquisition type of the functional components, the identification voltage is input into the processor, the processor determines the acquisition type of the functional components according to the identification voltage and processes the digital signal output by the A/D conversion circuit according to the acquisition type, and obtaining the monitoring value of the monitored battery, and connecting the main control unit and the functional unit through the connector and providing a signal transmission channel.
Preferably, the functional component is a component for collecting voltage, a component for collecting current, a component for collecting temperature or any combination of the above collection types.
Preferably, the functional unit is a unit for collecting battery voltage, an input end of a power conversion circuit of the functional unit is connected with a positive electrode and a negative electrode of the monitored battery, an output of the power conversion circuit provides working voltage for the constant voltage output circuit, the collecting unit and the main control unit, collecting elements of the collecting unit are two wires, the voltage conversion unit is respectively connected with the positive electrode and the negative electrode of the battery through the two wires, and an output of the voltage conversion unit is connected with the a/D conversion circuit; the constant voltage output circuit outputs a voltage value for identifying voltage acquisition, and the voltage value is input into the processor.
Preferably, the functional unit is a unit for collecting battery voltage and temperature, an input end of a power conversion circuit of the functional unit is connected with a positive electrode and a negative electrode of a monitored battery, an output of the power conversion circuit provides working voltage for the constant voltage output circuit, the collecting unit and the main control unit, the functional unit further comprises two collecting units which are respectively a temperature collecting unit and a voltage collecting unit, the temperature collecting unit comprises a temperature sensor and a voltage conversion circuit which are connected with each other, the voltage collecting unit comprises two wires and a voltage conversion circuit which are connected with each other, input ends of the two wires are respectively connected with the positive electrode and the negative electrode of the battery, and outputs of the collecting units are respectively input into the a/D conversion circuit; the constant voltage output circuit outputs a voltage value for identifying voltage and temperature acquisition, and the voltage value is input into the processor.
The utility model discloses technical scheme two is as follows:
an assembled battery acquisition module comprises a main control unit and a functional unit, wherein the main control unit comprises a processor, and an A/D conversion circuit or an external A/D conversion circuit is arranged in the processor; the functional components comprise a power supply conversion circuit, a constant voltage output circuit and at least one acquisition unit, wherein the input end of the power supply conversion circuit is connected with an external power supply, the output of the power supply conversion circuit provides working voltage for an acquisition module, each acquisition unit comprises an acquisition element and a voltage conversion circuit, the acquisition element monitors a battery to acquire an acquisition signal, the acquisition signal is input into the voltage conversion circuit, the voltage conversion circuit is connected with the A/D conversion circuit, a digital signal output by the A/D conversion circuit is input into a processor, the constant voltage output circuit outputs identification voltage for identifying the acquisition type of the functional components, the identification voltage is input into the processor, the processor determines the acquisition type of the functional components according to the identification voltage and processes the digital signal output by the A/D conversion circuit according to the acquisition type, and obtaining the monitoring value of the monitored battery, and connecting the main control unit and the functional unit through the connector and providing a signal transmission channel.
Preferably, the functional component is a component for collecting voltage, a component for collecting current, a component for collecting temperature or any combination of the above collection types.
More preferably, the functional component is a component including a current collector for collecting a battery current; the input end of a power supply conversion circuit of the functional component is connected with an external power supply, the output of the power supply conversion circuit provides working voltage for the constant voltage output circuit, the acquisition unit and the main control component, the functional component comprises an acquisition unit for acquiring current, the acquisition unit comprises a current sensor and a voltage conversion circuit which are connected with each other, and the output of the acquisition unit is input into the A/D conversion circuit; the constant voltage output circuit outputs a voltage value for identifying current collection, and the voltage value is input into the processor.
The utility model discloses following beneficial effect has:
the utility model relates to a battery collection module that can assemble, its functional unit have contained power conversion module, and it is to battery collection characteristics, can set up a set of functional unit that can gather the battery parameter, can pass through main control unit and functional unit combination according to the monitoring demand, can obtain required battery collection module. The utility model relates to a battery collection module that can assemble has shortened battery collection module's research and development cycle greatly, has reduced the research and development cost.
Drawings
Fig. 1 is a schematic diagram of an assembled battery collection module according to the present invention;
fig. 2 is a schematic circuit diagram of a main control unit of an assembled battery collection module according to the present invention;
FIG. 3 is a schematic diagram of a constant output circuit of an assembled battery collection module according to the present invention;
fig. 4 is a schematic diagram of an acquisition unit for temperature acquisition in the present invention;
fig. 5 is a schematic diagram of a battery collection module for collecting voltage according to the present invention;
fig. 6 is a schematic diagram of a battery collecting module for collecting battery voltage and temperature according to the present invention;
FIG. 7 is a schematic diagram of a voltage conversion circuit when the battery voltage collected in the present invention is large;
fig. 8 is a schematic diagram of a battery collection module powered by external power according to the present invention;
fig. 9 is a schematic diagram of a battery collection module for collecting current according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1, an assembled battery state acquisition module includes a main control unit and a functional unit, the main control unit and the functional unit are connected by a connector and provide a signal transmission channel, the main control unit includes a processor, and an a/D conversion circuit is disposed in the processor or an a/D conversion circuit is externally connected to the processor; the functional components comprise a power supply conversion circuit, a constant voltage output circuit and at least one acquisition unit, wherein the input end of the power supply conversion circuit is connected with two ends of a monitored battery, the output of the power supply conversion circuit provides working voltage for an acquisition module, each acquisition unit comprises an acquisition element and a voltage conversion circuit, the acquisition element monitors the battery to acquire an acquisition signal, the acquisition signal is input into the voltage conversion circuit, the acquisition signal is converted by the voltage conversion circuit and then outputs an analog signal which can be identified by an A/D conversion circuit of a processor, the voltage conversion circuit is connected with the A/D conversion circuit, and the analog signal is input into the A/D conversion circuit and is converted into a digital signal; the constant voltage output circuit outputs identification voltage for identifying the acquisition type of the functional component, the identification voltage is input into the processor, the processor determines the acquisition type of the functional component according to the identification voltage, and processes the digital signal output by the A/D conversion circuit according to the acquisition type to obtain the monitoring value of the monitored battery.
The main control unit and the functional unit can be connected through a signal line or a wire, preferably, a connector is connected and provides a signal transmission channel, and the connector generally adopts a pin header connector. The connector is more convenient to connect, and the main control unit and the functional unit are connected through the connector and provide a signal transmission channel. The connector is generally a pin header connector, but is not limited thereto. The power supply conversion circuit is a boosting and/or voltage reducing circuit, when the input voltage is low, for example, the voltage at two ends of the battery is lower than 3.3V, the power supply conversion circuit adopts a boosting circuit, when the input voltage is high, for example, if the voltage at two ends of the battery is 6V, 12V and the like, the power supply conversion circuit adopts a voltage reducing circuit, and the output of the power supply conversion circuit supplies power for the acquisition unit, the constant voltage output circuit and the main control component.
The functional component is a component with a voltage acquisition type, a current acquisition type, a temperature acquisition type or any combination of the above acquisition types.
It will be appreciated by those skilled in the art that the processor has internal memory, which may be used to store a computer program that is executed to cause the processor to operate, and therefore it is common knowledge in the art to store data processing algorithms that are used to process acquired data within the processor. The processor determines which data processing algorithm should be used to process the received digital signal based on the received identification voltage. The calculation principle of the data processing algorithm is to restore the amplitude of the received digital signal to the amplitude of the original acquired signal, for example, the voltage signal acquired by the functional component is attenuated by 10 times through the voltage conversion circuit, the data processing algorithm is used for restoring the digital signal by 10 times after amplifying the digital signal, and if the functional component is used for acquiring temperature, the data processing algorithm restores the real temperature value according to the attenuation proportion of the voltage conversion circuit and the corresponding relation between the temperature and the resistance value of the temperature sensitive resistor at different temperature values. This is a simple data processing.
The main control unit can adopt the circuit shown in fig. 2, which comprises a processor, two connectors and a filter circuit, the connector J1 transmits a sampling signal and an identification voltage signal DECAY, wherein the sampling signal comprises a voltage signal at two ends of the battery BAT and a temperature signal TEMP of a temperature sensor, and the processor can adopt 51 series, PIC series, STC8 series, AVR series and ARM series.
Since the upper limit of the voltage recognizable by the a/D conversion circuit is the a/D reference voltage value, the a/D reference voltage value is generally small, and particularly, the a/D conversion circuit located in the processor is generally not higher than the operating voltage of the processor. However, the amplitude of the signal to be acquired is often greater than the reference voltage, and therefore, a voltage conversion circuit needs to be arranged on the functional component to attenuate the acquired signal, so that the amplitude of the input signal meets the identification voltage range of the a/D conversion circuit, and the a/D conversion circuit can normally perform analog quantity conversion.
Three battery collection module assembly methods commonly used in battery monitoring are illustrated: the device comprises a temperature acquisition module, a voltage acquisition module and a voltage temperature acquisition module. For different types of acquisition, a constant voltage circuit on a functional component of the acquisition device is set to output different identification voltages, and the constant voltage circuit can adopt a circuit shown in fig. 3. For example, a functional part for temperature acquisition, which outputs an identification voltage of 2V; the functional component is used for collecting voltage, and the output identification voltage of the functional component is 1.5V; the functional component for voltage and temperature acquisition outputs 2.25V of identification voltage.
Firstly, the main control unit and the functional unit for collecting temperature signals are assembled into a battery collecting module through a connector. The functional unit comprises an acquisition unit, a power supply conversion module and a constant voltage output circuit. The input end of the power conversion module is connected with the anode and the cathode of the battery, the power conversion module outputs a working voltage, such as 3.3V direct current voltage, and the working voltage is simultaneously input into the main control unit to provide a working voltage for a circuit on the main control unit. The constant voltage output circuit may employ a circuit as shown in fig. 3. The circuit shown in fig. 3 is the simplest dc voltage converting circuit, and by setting the resistances of the resistors R1 and R2, the output voltage of the voltage dividing point b is equal to the set identification voltage, and for those skilled in the art, there are various ways to implement the dc voltage converting circuit, and the present invention is not limited thereto. In this embodiment, when the resistance of R1 is set to 13K and the resistance of R2 is set to 20K, 2V identification power is output at the voltage division point b. As shown in fig. 4, the collecting unit is a temperature sensor Rt and a voltage converting circuit a. The constant voltage output circuit outputs 2V identification voltage to a processor of the main control unit, and the processor calls a temperature data processing algorithm. The temperature sensor reacts the temperature change into resistance value change, each temperature corresponds to a resistance value, the voltage conversion circuit A is a voltage division circuit, the voltage value at the point a is input into the A/D conversion circuit due to the fact that current flows through the temperature sensor to generate voltage drop, the voltage value is converted into a digital signal, a temperature data processing algorithm in the processor restores the digital signal into a real temperature value according to a corresponding relation between the temperature and the resistance value of the voltage division circuit and the temperature sensitive resistor at different temperature values.
And secondly, assembling the main control component and the functional component for collecting the voltage of the battery into a battery collection module through a connector. As shown in fig. 5, the input of the power conversion circuit of the functional unit is connected with the positive pole and the negative pole of the monitored battery, the output of the power conversion circuit is that the constant voltage output circuit, the acquisition unit and the main control unit provide working voltage, the acquisition element of the acquisition unit is two wires, the voltage conversion unit passes through the two wires are respectively connected with the positive pole and the negative pole of the battery and acquire the voltage of the battery, and the voltage acquired through the attenuation of the voltage conversion circuit is used for acquiring the amplitude of the voltage and meeting the identification voltage range of the A/D conversion circuit. Generally, when the battery voltage is greater than 2V, the signal is collected through attenuation of the voltage conversion circuit, and as shown in fig. 6, when R3= R5, R4= R6, R3: R4= 10:1, the attenuation is ten times; when the battery voltage is less than or equal to 2V, the voltage conversion circuit performs the following steps according to 1: 1 proportion output battery voltage, as in the circuit shown in fig. 6, R3= R4= R5= R6, which is 1: 1 output. The output of the voltage conversion circuit is connected with the A/D conversion circuit; the constant voltage output circuit outputs 1.5V identification voltage, the voltage value is input into the processor, the main control part calls a voltage data processing algorithm according to the received identification voltage, the voltage data processing algorithm restores data to the input digital signal from voltage acquisition according to the inverse proportion of the attenuation proportion to obtain the actually measured voltage value, and the data processing algorithm is a conventional technical means in the field, but not the invention of the utility model.
And thirdly, the main control component and the functional component for collecting the voltage and the temperature of the battery are assembled into a battery collection module through a connector. The functional unit comprises two acquisition units, a power supply conversion module and a constant voltage output circuit. As shown in fig. 7, the input end of the power conversion module is connected to the positive electrode and the negative electrode of the battery through two wires, the output of the power conversion circuit provides working voltage for the constant voltage output circuit, the two acquisition units and the main control unit, for example, the power conversion circuit outputs 3.3V dc voltage, the constant voltage output circuit converts 3.3V into 2.25V, and outputs 2.25V identification voltage to the processor of the main control unit. One of the two collecting units is a temperature collecting unit (as shown in fig. 4), and the other is a voltage collecting unit (as shown in fig. 6). The output signals of the two acquisition units are input to an a/D conversion circuit, respectively (typically, a processor provides a plurality of analog signal input ports). And the processor calls a temperature data processing algorithm and a voltage data processing algorithm according to the identification voltage to respectively process the digital signals output by the A/D conversion circuit, so as to obtain an actually measured voltage value and a temperature value.
When applying embodiment to current collection, if the electric current of gathering is less, adopt to be monitored the battery and gather the module power supply as the battery, can cause some influences to the electric current precision of gathering, consequently, adopt embodiment three the mode of outside power supply, for the functional unit power supply of gathering the electric current, can improve the degree of accuracy of current monitoring.
Example two
As shown in fig. 8, an assembled battery collecting module includes a main control unit and a functional unit, the main control unit and the functional unit are connected through a connector and provide a signal transmission channel, the main control unit includes a processor, and an a/D conversion circuit or an external a/D conversion circuit is disposed in the processor; the functional components comprise a power supply conversion circuit, a constant voltage output circuit and at least one acquisition unit, wherein the input end of the power supply conversion circuit is connected with an external power supply, the output of the power supply conversion circuit provides working voltage for an acquisition module, each acquisition unit comprises an acquisition element and a voltage conversion circuit, the acquisition element monitors a battery to acquire an acquisition signal, the acquisition signal is input into the voltage conversion circuit, the voltage conversion circuit is connected with the A/D conversion circuit, a digital signal output by the A/D conversion circuit is input into a processor, the constant voltage output circuit outputs identification voltage for identifying the acquisition type of the functional components, the identification voltage is input into the processor, the processor determines the acquisition type of the functional components according to the identification voltage and processes the digital signal output by the A/D conversion circuit according to the acquisition type, and obtaining the monitoring value of the monitored battery.
The main control unit and the functional unit can be connected through a signal line or a wire, preferably, a connector is connected and provides a signal transmission channel, and the connector generally adopts a pin header connector. The connector is more convenient to connect.
In the second embodiment, the functional component is a component for collecting voltage, a component for collecting current, a component for collecting temperature, or any combination of the above collection types.
The implementation process is described by taking a battery collecting module for monitoring current as an example. And setting the acquisition type as a functional component of the charging and discharging current of the battery, wherein the output identification voltage of the functional component is 2.5V.
As shown in fig. 9, the input terminal of the power conversion circuit of the functional component is connected to an external power supply (for example, an external power supply connection adapter), and the power conversion circuit is no longer connected to the positive electrode and the negative electrode of the battery, so that the current loss is reduced, and the accuracy of the current measurement value is improved. And the power supply conversion module converts the power supply output by the adapter into 5V and 3.3V. The output of the power supply conversion circuit provides working voltage for the constant voltage output circuit, the acquisition unit and the main control unit. The functional component comprises an acquisition unit for acquiring current, the acquisition unit comprises a current sensor (generally a Hall current sensor is adopted, the working voltage of the current sensor is 5V) and a voltage conversion circuit which are mutually connected, the current sensor is arranged on a lead connected with the end parts of the positive electrode and the negative electrode of the battery, and an acquisition signal acquired by the current sensor is attenuated by the voltage conversion circuit and then is input into the A/D conversion circuit; the constant voltage output circuit outputs 2.5V identification voltage, the voltage value is input into the processor, the processor calls a current data processing algorithm according to the identification voltage to process the digital signal output by the A/D conversion circuit, the calculation is carried out according to the attenuation proportion of the voltage conversion circuit and the corresponding relation of the temperature and the resistance value of the temperature sensitive resistor at different temperature values, and the actual current value is restored.
The battery acquisition modules with different acquisition types can be obtained by developing the functional components according to the acquisition types and then assembling the functional components with the main control component. The identification voltage output by the constant voltage output circuit on the functional unit enables the main control unit to call a corresponding data processing algorithm, and the acquired data is processed to obtain a monitoring value. The utility model relates to a collection module that can assemble forms through main control unit and functional unit equipment, has shortened the research and development cycle greatly, has reduced the research and development cost, and when breaking down, is convenient for change the maintenance.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. An assemblable battery acquisition module, comprising: the system comprises a main control unit and a functional unit, wherein the main control unit comprises a processor, and an A/D conversion circuit or an external A/D conversion circuit is arranged in the processor; the functional components comprise a power supply conversion circuit, a constant voltage output circuit and at least one acquisition unit, wherein the input end of the power supply conversion circuit is connected with two ends of a monitored battery, the output of the power supply conversion circuit provides working voltage for an acquisition module, each acquisition unit comprises an acquisition element and a voltage conversion circuit, the acquisition element monitors the battery, acquires an acquisition signal, the acquisition signal is input into the voltage conversion circuit, the voltage conversion circuit is connected with the A/D conversion circuit, the A/D conversion circuit outputs a digital signal, the constant voltage output circuit outputs identification voltage for identifying the acquisition type of the functional components, the identification voltage is input into the processor, the processor determines the acquisition type of the functional components according to the identification voltage and processes the digital signal output by the A/D conversion circuit according to the acquisition type, and obtaining the monitoring value of the monitored battery.
2. The assembled battery capture module of claim 1, wherein: the functional component is a component with a voltage acquisition type, a current acquisition type, a temperature acquisition type or any combination of the above acquisition types.
3. An assembled battery harvesting module according to claim 2, wherein: the functional unit is used for collecting the voltage of the battery, the input end of a power supply conversion circuit of the functional unit is connected with the anode and the cathode of the monitored battery, the output of the power supply conversion circuit provides working voltage for the constant voltage output circuit, the collecting unit and the main control unit, the collecting element of the collecting unit is two leads, the voltage conversion unit is respectively connected with the anode and the cathode of the battery through the two leads, and the output of the voltage conversion unit is connected with the A/D conversion circuit; the constant voltage output circuit outputs a voltage value for identifying voltage acquisition, and the voltage value is input into the processor.
4. An assembled battery harvesting module according to claim 2, wherein: the functional unit is used for collecting the voltage and the temperature of the battery, the input end of a power supply conversion circuit of the functional unit is connected with the anode and the cathode of the monitored battery, the output of the power supply conversion circuit provides working voltage for the constant voltage output circuit, the collecting unit and the main control unit, the functional unit further comprises two collecting units which are respectively a temperature collecting unit and a voltage collecting unit, the temperature collecting unit comprises a temperature sensor and a voltage conversion circuit which are connected with each other, the voltage collecting unit comprises two leads and a voltage conversion circuit which are connected with each other, the input ends of the two leads are respectively connected with the anode and the cathode of the battery, and the output of each collecting unit is respectively input into the A/D conversion circuit; the constant voltage output circuit outputs a voltage value for identifying voltage and temperature acquisition, and the voltage value is input into the processor.
5. An assemblable battery acquisition module, comprising: the system comprises a main control unit and a functional unit, wherein the main control unit comprises a processor, and an A/D conversion circuit or an external A/D conversion circuit is arranged in the processor; the functional components comprise a power supply conversion circuit, a constant voltage output circuit and at least one acquisition unit, wherein the input end of the power supply conversion circuit is connected with an external power supply, the output of the power supply conversion circuit provides working voltage for an acquisition module, each acquisition unit comprises an acquisition element and a voltage conversion circuit, the acquisition element monitors a battery to acquire an acquisition signal, the acquisition signal is input into the voltage conversion circuit, the voltage conversion circuit is connected with the A/D conversion circuit, a digital signal output by the A/D conversion circuit is input into a processor, the constant voltage output circuit outputs identification voltage for identifying the acquisition type of the functional components, the identification voltage is input into the processor, the processor determines the acquisition type of the functional components according to the identification voltage and processes the digital signal output by the A/D conversion circuit according to the acquisition type, and obtaining the monitoring value of the monitored battery.
6. An assembled battery harvesting module according to claim 5, wherein: the functional component is a component with a voltage acquisition type, a current acquisition type, a temperature acquisition type or any combination of the above acquisition types.
7. An assembled battery capture module as claimed in claim 6, wherein: the functional component comprises a component for collecting battery current; the input end of a power supply conversion circuit of the functional component is connected with an external power supply, the output of the power supply conversion circuit provides working voltage for the constant voltage output circuit, the acquisition unit and the main control component, the functional component comprises an acquisition unit for acquiring current, the acquisition unit comprises a current sensor and a voltage conversion circuit which are connected with each other, and the output of the acquisition unit is input into the A/D conversion circuit; the constant voltage output circuit outputs a voltage value for identifying current collection, and the voltage value is input into the processor.
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| CN201921425814.4U CN210165997U (en) | 2019-08-30 | 2019-08-30 | Battery collection module that can assemble |
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| CN201921425814.4U CN210165997U (en) | 2019-08-30 | 2019-08-30 | Battery collection module that can assemble |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426082A (en) * | 2019-08-30 | 2019-11-08 | 福州福沃垦电子科技有限公司 | A kind of assemblnig acquisition module and battery acquisition module |
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Cited By (1)
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| CN110426082A (en) * | 2019-08-30 | 2019-11-08 | 福州福沃垦电子科技有限公司 | A kind of assemblnig acquisition module and battery acquisition module |
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