CN209674259U - Battery voltage analog circuit and battery analog machine - Google Patents
Battery voltage analog circuit and battery analog machine Download PDFInfo
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- CN209674259U CN209674259U CN201920900721.6U CN201920900721U CN209674259U CN 209674259 U CN209674259 U CN 209674259U CN 201920900721 U CN201920900721 U CN 201920900721U CN 209674259 U CN209674259 U CN 209674259U
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Abstract
The utility model relates to battery voltage analog circuit and battery analog machines, the circuit includes isolated power supply module, signal isolation module, analog output module, wherein: the isolated power supply module is electrically connected to the signal isolation module, the analog output module, for providing electric energy for the signal isolation module, the analog output module；The signal isolation module is electrically connected to the analog output module, for receiving the control signal of extraneous input, the analog output module is isolated with the external world, and transmit the control signal to the analog output module；The analog output module, for exporting analog voltage signal according to the control signal, the analog voltage signal is used for powering load.The circuit structure of the battery voltage analog circuit of the utility model is simple, and volume, weight are small, and low in cost.
Description
Technical field
The utility model relates to power technique fields more particularly to the simulation of a kind of battery voltage analog circuit and battery to set
It is standby.
Background technique
In recent years, the transition and upgrading of China's automobile industry, new-energy automobile will be in the development for welcoming high speed in recent years, future
New-energy automobile market has huge development potentiality within several years.With the development for being energy automobile, lithium battery yield is in recent years
Also therewith experience quickly increase, however, performance of lithium battery itself determine its cannot overcharge, over-discharge, overcurrent.To battery into
The research of row charge-discharge performance is with regard to particularly important, if charged using true lithium battery, discharge test research, efficiency
It is very low and be easy to produce experimental cell waste.
The relevant technologies usually utilize battery simulator to realize the simulation to lithium battery to carry out experiment, however, related skill
Structure is complicated for battery simulator in art, and volume weight is huge, it is difficult to adapt to a variety of environment；It is at high cost, improve research and development at
This.
Utility model content
Technical problem
In view of this, the technical problems to be solved in the utility model is, how in the volume for reducing battery simulator, again
Amount, and reduce cost.
Solution
In order to solve the above-mentioned technical problem, an embodiment according to the present utility model, provides a kind of battery voltage analog
Circuit, the circuit include isolated power supply module, signal isolation module, analog output module, in which:
The isolated power supply module is electrically connected to the signal isolation module, the analog output module, for being described
Signal isolation module, the analog output module provide electric energy；
The signal isolation module is electrically connected to the analog output module, for receiving the control signal of extraneous input,
The analog output module is isolated with the external world, and transmits the control signal to the analog output module；
The analog output module, for exporting analog voltage signal, the analog voltage letter according to the control signal
Number be used for powering load.
For above-mentioned battery voltage analog circuit, in one possible implementation,
The analog output module includes:
Digital analog converter, for exporting conversion voltage signal according to the control signal；
Operational amplifier is electrically connected to the digital analog converter, for amplifying to the conversion voltage signal and defeated
The analog voltage signal out improves the driving capability of the conversion voltage signal.
For above-mentioned battery voltage analog circuit, in one possible implementation,
The circuit further include:
Feedback module is electrically connected to the analog output module and the signal isolation module, for utilizing the simulation
Voltage signal exports feedback signal；
Wherein, the signal isolation module is also used to receive the feedback signal, and the feedback signal is output to institute
Analog output module is stated, is adjusted with the output to the analog output module.
For above-mentioned battery voltage analog circuit, in one possible implementation,
The feedback module includes first resistor network, second resistance network, isolation modulus conversion chip, in which:
The first end of the first resistor network is electrically connected to the analog output module, for receiving the analog voltage
Signal, the second end of the first resistor network is electrically connected to the first end of the second resistance network and the isolation modulus turns
Change the input terminal of chip；
The second end of the second resistance network is grounded；
The isolation modulus conversion chip is used to generate the feedback signal using the voltage division signal of second resistance network,
In, the feedback signal is pulse width modulating signal.
For above-mentioned battery voltage analog circuit, in one possible implementation,
The isolated power supply module includes isolated power supply chip, and the length and width of the isolated power supply chip is 0.5cm
Between~2cm, the thickness of the isolated power supply chip is between 1.5mm~4mm；
The signal isolation module includes isolation communication chip.
In order to solve the above-mentioned technical problem, another embodiment according to the present utility model provides a kind of simulation of battery and sets
Standby, the equipment includes:
Control module, for issuing control signal；
Multi-channel gating device is electrically connected to the control module, is used for according to the corresponding access of the control signal behavior, and
Transmit the control signal；
Multiple battery voltage analog circuits, the multiple battery voltage analog circuit are electrically connected to the multichannel choosing
Logical device, for exporting analog voltage signal in the case where receiving the control signal.
For above-mentioned battery analog machine, in one possible implementation, the multiple battery voltage analog circuit
Multiple groups can be divided into, wherein the control module, the multi-channel gating device and one group of battery voltage analog circuit are arranged in main electricity
On the plate of road, other each group battery voltage analog circuits are separately positioned on multiple from circuit board.
For above-mentioned battery analog machine, in one possible implementation, the main circuit board and it is the multiple from
Circuit board is installed in a stacked fashion, and, the main circuit board and it is the multiple between circuit board using flexible connection
Line connection.
For above-mentioned battery analog machine, in one possible implementation, in the main circuit board and the multiple
From circuit board, S-shaped is set by the insulating regions between high pressure and low pressure.
For above-mentioned battery analog machine, in one possible implementation, the control module include ARM, MCU,
At least one of DSP, FPGA, the control module pass through CAN bus and external connection,
Wherein, the control module is also used to control multiple battery voltage analog circuits and exports institute in series
State analog voltage signal.
Beneficial effect
The utility model realizes battery voltage analog using isolated power supply module, signal isolation module and analog output module
Circuit is provided electric energy using isolated power supply module for signal isolation module and analog output module, is connect using signal isolation module
It receives control signal and analog output module is isolated from the outside, and is special according to control signal imitation battery using analog output module
Property output analog voltage signal, the circuit structure of the battery voltage analog circuit of the utility model is simple, and volume, weight are small, and
And it is low in cost.
According to below with reference to the accompanying drawings to detailed description of illustrative embodiments, the other feature and aspect of the utility model will
It becomes apparent.
Detailed description of the invention
Comprising in the description and constitute the attached drawing of part of specification and specification to together illustrate this practical new
Exemplary embodiment, feature and the aspect of type, and for explaining the principles of the present invention.
Fig. 1 shows the block diagram of the battery voltage analog circuit according to one embodiment of the utility model.
Fig. 2 shows the another block diagrams according to the battery voltage analog circuit of the utility model one embodiment.
Fig. 3 shows the block diagram of the battery analog machine according to one embodiment of the utility model.
Fig. 4 shows the part signal of multi-channel gating device in the battery analog machine according to one embodiment of the utility model
Figure.
Fig. 5 shows the schematic diagram of the battery analog machine according to one embodiment of the utility model.
Fig. 6 shows the schematic diagram of circuit board in the battery analog machine according to one embodiment of the utility model.
Specific embodiment
The various exemplary embodiments, feature and aspect of the utility model are described in detail below with reference to attached drawing.In attached drawing
Identical appended drawing reference indicates element functionally identical or similar.Although the various aspects of embodiment are shown in the attached drawings,
It is unless otherwise indicated, it is not necessary to attached drawing drawn to scale.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, in order to better illustrate the utility model, given in specific embodiment below numerous specific
Details.It will be appreciated by those skilled in the art that without certain details, the utility model equally be can be implemented.In some realities
In example, method well known to those skilled in the art, means, element and circuit are not described in detail, in order to highlight this reality
With novel purport.
Referring to Fig. 1, Fig. 1 shows the block diagram of the battery voltage analog circuit according to one embodiment of the utility model.
As shown in Figure 1, the circuit 1 includes isolated power supply module 10, signal isolation module 20, analog output module 30,
Wherein:
The isolated power supply module 10 is electrically connected to the signal isolation module 20, the analog output module 30, is used for
Electric energy is provided for the signal isolation module 20, the analog output module 30；
The signal isolation module 20 is electrically connected to the analog output module 30, for receiving the control letter of extraneous input
Number, the analog output module 30 is isolated with the external world, and transmit the control signal to the analog output module 30；
The analog output module 30, for exporting analog voltage signal, the analog voltage according to the control signal
Signal is used for powering load.
The utility model realizes battery electricity using isolated power supply module 10, signal isolation module 20 and analog output module 30
Analog circuit 1 is pressed, is that signal isolation module 20 and analog output module 30 provide electric energy using isolated power supply module 10, utilizes letter
Number isolation module 20 receives control signal and analog output module 30 is isolated from the outside, and utilizes 30 basis of analog output module
It controls signal imitation battery behavior and exports analog voltage signal, the circuit structure of the battery voltage analog circuit 1 of the utility model
Simply, volume, weight are small, and low in cost.
Battery voltage analog circuit described in each embodiment of the utility model can be realized by circuit.
The utility model proposes battery voltage analog circuit can be applied to battery management system (Battery
Management System, BMS) in, it can be used for driving load 40.
In various possible embodiments, load 40 can be the BMS of new-energy automobile, such as electric car, can also
To be the BMS of other electric tools, in this regard, the utility model is without limitation.
In a kind of possible embodiment, the isolated power supply module 10 can receive alternating current or direct current, will connect
Alternating current, the direct current of receipts are converted.For example, can receive the alternating current of 12V, and the alternating current of 12V is converted into 5V
The direct current of 400mA.The utility model to the type of the received electric energy of isolated power supply module 10, size without limitation, it is defeated to its
Also without limitation, those skilled in the art can according to need determination to the size type of electric energy out, for example, can be according to wanting mould
Type, the size of quasi- battery determine.
In a kind of possible embodiment, general hardware circuitry realization, example is can be used in the isolated power supply module 10
If the isolated power supply module 10 may include isolated power supply chip, the length and width of the isolated power supply chip is 0.5cm
Between~2cm, the thickness of the isolated power supply chip is between 1.5mm~4mm.
By using small-sized, slim isolated power supply chip, the volume and weight of battery voltage analog circuit 1 can reduce,
A variety of environment are adapted to convenient for battery voltage analog circuit 1.It, can be to avoid the electricity of generation and since power module is isolated form
Extraneous control module (such as single-chip microcontroller) can be had an impact.
In other implementations, the isolated power supply module 10 can also be realized by special hardware circuit, ability
Field technique personnel can according to need design specialized hardware circuit, for the specific structure of special hardware circuit, the utility model
Without limitation.
In a kind of possible embodiment, the signal isolation module 20 can be realized by general hardware circuitry, example
Such as, the signal isolation module 20 includes isolation communication chip (can be single pass, be also possible to multichannel).
Certainly, in other implementations, the signal isolation module 20 can also be realized by special hardware circuit,
Those skilled in the art can according to need design specialized hardware circuit, as long as it can be designed so that signal isolation module 20 can
The external world to be isolated to (such as being isolated by realizations such as transformer, optocoupler, capacitors) with analog output module, and control letter can be transmitted
Number.For the specific structure of special hardware circuit, the utility model is without limitation.
It, can be defeated to simulating to avoid extraneous control module (such as single-chip microcontroller) since signal isolation module 20 is isolated form
Module 30 has an impact out, can also have an impact to avoid 30 pairs of analog output module extraneous control modules (such as single-chip microcontroller).
The circuit structure of analog output module 30 will be introduced below.
Referring to Fig. 2, Fig. 2 shows the another frames according to the battery voltage analog circuit of the utility model one embodiment
Figure.
In a kind of possible embodiment, as shown in Fig. 2, the analog output module 30 may include:
Digital analog converter 310, for exporting conversion voltage signal according to the control signal；
Operational amplifier 320 is electrically connected to the digital analog converter 310, for putting to the conversion voltage signal
Greatly and the analog voltage signal is exported, improves the driving capability of the conversion voltage signal.
In a kind of possible embodiment, the control signal may include voltage instruction, and digital analog converter 310 can be with
The conversion voltage signal of corresponding size is generated according to the voltage instruction in control signal.
For example, control signal may include the voltage instruction of arbitrary target voltage between 0~5V, digital analog converter 310 is defeated
Analog-converted voltage range out can be 0~5V.
For example, control signal may include the voltage instruction that target voltage is 2.5V, institute is received in number converter 310
After stating control signal, the conversion voltage signal of 2.5V is exported.
Operational amplifier 320 can amplify conversion voltage signal, and the electric current for improving conversion voltage signal drives energy
Power.In one example, the analog voltage signal that operational amplifier 320 exports can be 0-5V, 320mA.
It should be noted that the concrete type of the utility model logarithm mode converter 310 and operational amplifier 320 does not limit
Fixed, they can be realized by general hardware circuitry (such as analog-digital chip, operational amplifier chip), can be by special
The special hardware circuit of design is realized, as long as respective function may be implemented in they.
The utility model proposes battery voltage analog circuit 1 can also include other modules, to realize other function
Can, citing is introduced below.
In a kind of possible embodiment, the circuit can also include:
Feedback module 50 is electrically connected to the analog output module 30 and the signal isolation module 20, for utilizing institute
State analog voltage signal output feedback signal；
Wherein, the signal isolation module 20 is also used to receive the feedback signal, and the feedback signal is output to
The analog output module 30 is adjusted with the output to the analog output module 30.
The utility model is adjusted the output of analog output module 30 by feedback signal, can make simulation output
The analog output signal that module 30 exports is more accurate.
In other implementations, the feedback signal that feedback module 50 exports can also be output to the external world, for user
(such as technical staff) monitoring is used.
It should be noted that the feedback module 50 of the utility model can realize that implementation can by hardware circuit
There are many, the possible embodiment of feedback module 50 is illustrated below.
In a kind of possible embodiment, as shown in Fig. 2, the feedback module includes first resistor network 510, second
Resistor network 520, isolation modulus conversion chip 530, in which:
The first end of the first resistor network 510 is electrically connected to the analog output module 30, for receiving the mould
Quasi- voltage signal, the second end of the first resistor network 510 are electrically connected to first end and the institute of the second resistance network 520
State the input terminal of isolation modulus conversion chip 530；
The second end of the second resistance network 520 is grounded；
The isolation modulus conversion chip 530 is used to generate the feedback using the voltage division signal of second resistance network 520
Signal, wherein the feedback signal is pulse width modulating signal.
In a kind of possible embodiment, the first resistor network 510 may include the first resistor being connected in series
And second resistance (not shown), the resistance value of the first resistor and second resistance can be 2k Ω, 1.5k Ω.
In a kind of possible embodiment, the second resistance network 520 may include 3rd resistor (not shown), the
The resistance value of three resistance can be 200 Ω.
It should be noted that the introduction of first resistor network 510 and second resistance network 520 is exemplary above,
It is not construed as limitations of the present invention.In other implementations, first resistor network 510 and second resistance network
520 can also be other implementations, such as can be by multiple resistance or other devices by way of series connection and/or parallel connection
It is formed, in this regard, the utility model is without limitation.
It can also include switch module between analog output module 30 and load 40 in a kind of possible embodiment
(not shown), control signal can control the on state of switch module, thus control analog output module 30 and load 40 it
Between access.In this way, disconnection function may be implemented in the utility model, test environment is provided for the fault detection of BMS, it can basis
Need to cut off the connection of some battery voltage analog circuit and load.
In a kind of possible embodiment, the switch module may include various switches or combinations thereof, such as hilted broadsword
Single-throw switch, transistor or switching circuit of its composition etc., the specific implementation for switch module, the utility model does not limit
It is fixed.
By the above circuit, the utility model can be with the voltage output characteristics of simulated battery, to export analog voltage letter
Number, also, the battery voltage analog circuit of the utility model, compared to the battery simulator of the relevant technologies, volume, weight are smaller,
Manufacturing cost is lower, and export analog voltage signal have the characteristics that it is accurate, stable.
Based on the above battery analogue circuit 1, the utility model also proposed battery analog machine, below to the battery mould
Propose standby be introduced.
Referring to Fig. 3, Fig. 3 shows the block diagram of the battery analog machine according to one embodiment of the utility model.
As shown in figure 3, the equipment includes:
Control module 2, for issuing control signal；
Multi-channel gating device 3 is electrically connected to the control module 2, is used for according to the corresponding access of the control signal behavior,
And transmit the control signal；
Multiple battery voltage analog circuits 1, the multiple battery voltage analog circuit 1 are electrically connected to the multichannel
Gate 3, for exporting analog voltage signal in the case where receiving the control signal.
Battery analog machine described in the utility model controls multi-channel gating device by control module and controls multiple battery electricity
Analog circuit is pressed, the analog voltage output of wide scope, compared to the relevant technologies, battery mould described in the utility model may be implemented
Propose standby small in size, light-weight, manufacturing cost is cheap, and output is reliable, and the range of output voltage is wide, can be applied to a variety of feelings
Condition.
In a kind of possible embodiment, a battery voltage analog circuit 1 can be considered as to a batteries (such as lithium
Ion battery) simulation, therefore, in battery analog machine, may be implemented any number of battery simulation (as needed,
Configure the number of battery voltage analog circuit 1).
In a kind of possible embodiment, the control module 2 can be realized by special hardware circuit, can also be led to
Crossing general procedure hardware (such as ARM, MCU, DSP, field programmable logic device FPGA etc.) combines executable logical order real
It is existing, to execute the course of work of master component, wherein executable logical order can be realized based on prior art means.This reality
Without limitation with the novel specific implementation to master component.
In a kind of possible embodiment, the control module 2 can be by CAN bus and external connection, and receives
Externally input signal or data.
In a kind of possible embodiment, the control module 2 can be also used for controlling multiple cell voltage moulds
Quasi- circuit 1 exports the analog voltage signal in series.
For example, it is assumed that each battery voltage analog circuit can produce the analog voltage signal of 0-5V, then controls
Module 2 can control multiple battery voltage analog circuits 1 and connect, thus the analog voltage signal that output is bigger.
For example, it is assumed that battery analog machine includes 10 battery voltage analog circuits, it can choose wherein 5 series connection, from
And export the analog voltage signal of maximum 25V.
Certainly, control module 2 can be controlled separately the output of each battery voltage analog circuit 1 and export analog voltage respectively
Signal, that is to say, that control module 2 can choose any number of battery voltage analog circuit 1, and each cell voltage mould
The analog voltage signal that quasi- circuit 1 exports may be the same or different.
It is of course understood that the control mode of control module 2 be it is diversified, the utility model does not do exhaustion,
And above description is exemplary, and is not construed as limitations of the present invention.
In a kind of possible embodiment, referring to Fig. 4, Fig. 4 is shown according to one embodiment of the utility model
The partial schematic diagram of multi-channel gating device in battery analog machine.
As shown in figure 4, multi-channel gating device 3 can use chip selection signal CSS0 and multi-channel gating device control signal to select to lead
Logical access, thus the voltage analog circuits 1 that selection is connect with the access of multi-channel gating device 3.
It should be noted that Fig. 4 only lists a part (such as half) of multi-channel gating device in an example, In
Multi-channel gating device controls in signal, and port A0 can input the enable signal of multi-channel gating device 3, the signal inputted according to port A0
And be pre-configured with, it can be to enable corresponding multi-channel gating device.For example, when the signal of port A0 input is true (for example, 1), multichannel
Gate can according to signal behavior port B1, B2 that chip selection signal CSS0 and port A1, A2, A3 are inputted, B3, B4, B5, B6,
B7, B8 output a control signal to corresponding 8 battery voltage analog circuits；And when the signal of port A0 input be it is false (for example,
1), multi-channel gating device can according to signal behavior port B9, B10 that chip selection signal CSS0 and port A1, A2, A3 are inputted, B11,
B12, B13, B14, B15, B16 output a control signal to corresponding 8 battery voltage analog circuits, and (multi-channel gating device is another in this example
The case where half, Fig. 4 are not shown).
Certainly, above description is exemplary, and multi-channel gating device also 3 can be other using other embodiments, example
Such as, those skilled in the art can choose currently known a variety of multi-channel gating devices to implement the utility model, and multichannel is selected
Type the utility model of logical device is without limitation.
In a kind of possible embodiment, the chip selection signal CSS0, multi-channel gating device control signal may include
In the control signal that control module issues, it is of course also possible to be isolated state.
The utility model can use a small amount of signal by multi-channel gating device and control multiple battery voltage analog circuits, example
Such as, controlling signal by SPI signal all the way and 4 tunnel multiple selector can control 16 battery voltage analog circuits, overcome
The relevant technologies are difficult to the shortcomings that circuits multiple by SPI piece selected control system.
The number of battery voltage analog circuit 1 can according to need setting in the battery analog machine of the utility model, this
Utility model to the number of battery voltage analog circuit without limitation.
In a kind of possible embodiment, the multiple battery voltage analog circuit can be divided into multiple groups, wherein described
Control module 2, the multi-channel gating device 3 and one group of battery voltage analog circuit 1 can be set on main circuit board, other each groups
Battery voltage analog circuit 1 can be separately positioned on multiple from circuit board.
The utility model configures the mounting means of battery voltage analog circuit by client/server, and multiple batteries may be implemented
The simple control of voltage analog circuits 1.
In a kind of possible embodiment, each group battery voltage analog circuit 1 can be set to one by one it is multiple from electricity
On the plate of road.
It certainly, in other implementations, can also be by multiple groups cell voltage mould in the case where circuit board is sufficiently large
On a circuit board, this depends on the grouping situation of battery voltage analog circuit 1, and (each group of quantity is big for the quasi- setting of circuit 1
It is small) and circuit board size, the utility model is without limitation.
In a kind of possible embodiment, the main circuit board and the multiple carried out in a stacked fashion from circuit board
Installation, and, the main circuit board and it is the multiple between circuit board use flexible connection line connect.It should be noted that this
Without limitation to the specific type of flexible connection line, those skilled in the art can according to need to be selected utility model.
Referring to Fig. 5, Fig. 5 shows the schematic diagram of the battery analog machine according to one embodiment of the utility model.
As shown in figure 5, main circuit board is pacified by way of stacking with from circuit board in the case where being 1 from circuit board
Dress, and main circuit board and between circuit board use flexible connection line connect.
The utility model by way of stacking to main circuit board and it is multiple installed from circuit board, battery can be reduced
The size of analog machine.Also, main circuit board is connected using flexible connection line and multiple from circuit board, can guarantee main circuit
The volume of battery analog machine is further reduced under the premise of plate and multiple communications and performance from circuit version.
It in one example, can be by 24 electricity in the case that the number of the battery voltage analog circuit of needs is 24
It is two groups that cell voltage analog circuit 1, which is divided to, and first group includes 10 battery voltage analog circuits 1, and second group includes 14 battery electricity
Press analog circuit 1.In this illustration, 10 battery voltage analog circuits 1 can be installed on main circuit board, it can be from electricity
Road is installed by other 14 battery voltage analog circuits 1.
Certainly, in main circuit board and from circuit board, other components can also be installed, for example, can be in main circuit board
Upper installation plug connector etc..
It should be noted that for battery voltage analog circuit packet mode, the utility model without limitation, each
In different embodiments, in each grouping of battery voltage analog circuit, the number of battery voltage analog circuit can be identical,
It can also be different, can according to need and configured.
In other examples, when being grouped to battery voltage analog circuit, the number of grouping also be can according to need
Selection.
As shown in figure 5, in one example, battery analog machine (packet can be configured in the space of 160*100*20mm
Include at least 24 battery voltage analog circuits), it is seen that battery analog machine described in the utility model it is small in size, and can simulate
The voltage of 25 batteries.
In a kind of possible embodiment, multiple battery analog machines can be configured, and by multiple battery analog machines
It is together in series, so that bigger driving capability is obtained, in this regard, the utility model is without limitation.
For example, multiple battery analog machines may be mounted at the cabinet of 3U size (size is, for example, 230*120*130mm)
In, the simulation of the voltage of tens of sections or even hundreds of batteries is realized in cooperation cabinet power supply.
Referring to Fig. 6, Fig. 6 shows showing for circuit board in the battery analog machine according to one embodiment of the utility model
It is intended to.
In a kind of possible embodiment, as shown in fig. 6, in the main circuit board and the multiple from circuit board,
S-shaped can be set by the insulating regions between high pressure and low pressure.
It should be noted that not including for the region in circuit board (such as PCB substrate) in the region of " S-shaped " in Fig. 6
Each battery voltage analog circuit 1 (just on the path of S-shaped), battery voltage analog circuit 1 can be connected across high pressure and low
In insulating regions between pressure.
As shown in fig. 6, showing the schematic diagram of a battery voltage analog circuit of the utility model in box, Fig. 6 shows
Gone out includes multiple battery voltage analog circuits in the circuit board.
It is to be understood that above description is exemplary, limitations of the present invention are not construed as, are based on this reality
It is regarded as within the scope of the claims of the utility model with the deformation of novel battery analog machine.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (10)
1. a kind of battery voltage analog circuit, which is characterized in that the circuit include isolated power supply module, signal isolation module,
Analog output module, in which:
The isolated power supply module is electrically connected to the signal isolation module, the analog output module, for being the signal
Isolation module, the analog output module provide electric energy；
The signal isolation module is electrically connected to the analog output module, for receiving the control signal of extraneous input, by institute
It states analog output module to be isolated with the external world, and transmits the control signal to the analog output module；
The analog output module, for exporting analog voltage signal according to the control signal, the analog voltage signal is used
In powering load.
2. circuit according to claim 1, which is characterized in that the analog output module includes:
Digital analog converter, for exporting conversion voltage signal according to the control signal；
Operational amplifier is electrically connected to the digital analog converter, for amplifying to the conversion voltage signal and exporting institute
Analog voltage signal is stated, the driving capability of the conversion voltage signal is improved.
3. circuit according to claim 1, which is characterized in that the circuit further include:
Feedback module is electrically connected to the analog output module and the signal isolation module, for utilizing the analog voltage
Signal exports feedback signal；
Wherein, the signal isolation module is also used to receive the feedback signal, and the feedback signal is output to the mould
Quasi- output module, is adjusted with the output to the analog output module.
4. circuit according to claim 3, which is characterized in that the feedback module includes first resistor network, the second electricity
Hinder network, isolation modulus conversion chip, in which:
The first end of the first resistor network is electrically connected to the analog output module, for receiving the analog voltage letter
Number, the second end of the first resistor network is electrically connected to the first end and the isolation analog-to-digital conversion of the second resistance network
The input terminal of chip；
The second end of the second resistance network is grounded；
The isolation modulus conversion chip is used to generate the feedback signal using the voltage division signal of second resistance network, wherein
The feedback signal is pulse width modulating signal.
5. circuit according to claim 1, which is characterized in that the isolated power supply module includes isolated power supply chip, institute
The length and width of isolated power supply chip is stated between 0.5cm~2cm, the thickness of the isolated power supply chip is in 1.5mm~4mm
Between；
The signal isolation module includes isolation communication chip.
6. a kind of battery analog machine, which is characterized in that the equipment includes:
Control module, for issuing control signal；
Multi-channel gating device is electrically connected to the control module, is used for according to the corresponding access of the control signal behavior, and transmit
The control signal；
Multiple battery voltage analog circuits as described in any one in claim 1-5, the multiple battery voltage analog circuit electricity
It is connected to the multi-channel gating device, for exporting analog voltage signal in the case where receiving the control signal.
7. equipment according to claim 6, which is characterized in that the multiple battery voltage analog circuit can be divided into more
Group, wherein the control module, the multi-channel gating device and one group of battery voltage analog circuit are arranged on main circuit board,
Its each group battery voltage analog circuit is separately positioned on multiple from circuit board.
8. equipment according to claim 7, which is characterized in that the main circuit board and it is the multiple from circuit board to stack
Mode installed, and, the main circuit board and it is the multiple between circuit board use flexible connection line connect.
9. equipment according to claim 7, which is characterized in that in the main circuit board and the multiple from circuit board,
S-shaped is set by the insulating regions between high pressure and low pressure.
10. equipment according to claim 6, which is characterized in that the control module includes ARM, MCU, DSP, FPGA
At least one, the control module pass through CAN bus and external connection,
Wherein, the control module is also used to control multiple battery voltage analog circuits and exports the mould in series
Quasi- voltage signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114966514A (en) * | 2022-07-28 | 2022-08-30 | 武汉海亿新能源科技有限公司 | Fuel cell monolithic voltage signal generator and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114966514A (en) * | 2022-07-28 | 2022-08-30 | 武汉海亿新能源科技有限公司 | Fuel cell monolithic voltage signal generator and control method thereof |
| CN114966514B (en) * | 2022-07-28 | 2022-11-01 | 武汉海亿新能源科技有限公司 | Single-chip voltage signal generator of fuel cell and control method thereof |
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Address after: No. 451, Zixing Road, Zizhu Science Park, Minhang District, Shanghai 200241 Patentee after: Hitachi astemo automotive electronics (Shanghai) Co.,Ltd. Address before: No. 451, Zixing Road, Zizhu Science Park, Minhang District, Shanghai 200241 Patentee before: KEIHIN R&D CHINA Co.,Ltd. |