CN106443150A - Current sensor based on diverter - Google Patents
Current sensor based on diverter Download PDFInfo
- Publication number
- CN106443150A CN106443150A CN201610443757.7A CN201610443757A CN106443150A CN 106443150 A CN106443150 A CN 106443150A CN 201610443757 A CN201610443757 A CN 201610443757A CN 106443150 A CN106443150 A CN 106443150A
- Authority
- CN
- China
- Prior art keywords
- current
- data
- signal
- diverter
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
Abstract
The invention is applicable to the design of electronic components and provides a current sensor based on a diverter. The current sensor based on the diverter includes a signal acquisition unit, a signal conditioning unit, and a data conversion correction unit, the signal acquisition unit includes the diverter, performs current signal acquisition via the diverter, and transmits the acquired original current signal to the signal conditioning unit, the signal conditioning unit converts the original current signal into a target voltage signal, and then outputs the target voltage signal to the data conversion correction unit, the data conversion correction unit is used for performing analog-to-digital conversion of the target voltage signal, correcting the converted current data, and outputting the target current data to an external detection system. According to the invention, based on the ohm theorem, the internal circuit does not contain non-linear devices, and because the diverter is good in linearity and accuracy, the accuracy of current detection is guaranteed; and meanwhile, after the analog-to-digital conversion, the digital signal is output to the external detection system, the anti-interference property is good.
Description
Technical field
The invention belongs to field of sensing technologies, more particularly, to a kind of current sensor based on diverter.
Background technology
At present, China's new-energy automobile industry is in the ascendant, for the traffic safety of support vehicles, electrokinetic cell system
The extreme critical data such as monomer voltage, electrokinetic cell stagnation pressure, electrokinetic cell size of current is must real-time monitoring.Such as power
For the running status monitoring battery system, (State of Charge, state-of-charge, are also residue to the total current of battery with SOC
Electricity) predict most important.Hall-type current sensor is widely used as current monitoring device at present in electric automobile industry,
But there is problems with Hall-type current sensor：1. common open loop Hall current sensor precision is low, temperature influence
Larger, the measurement response time is not fast, and bandwidth is narrow；2. Closed Loop Hall high precision but expensive, overload capacity
Difference, volume is larger, needs to calibrate using the later stage simultaneously；3. Hall element volume is big, installs inconvenience, does not meet current small size
The requirement of lightweight development；4. either measure little electricity under the conditions of Closed Loop Hall or open loop Hall element wide range
Stream all can have the larger error of ratio, and small current collection is inaccurate；5. after there is magnetic saturation, Hall current sensor just can not play
Normal measurement effect, easily causes sensor degradation simultaneously；6. the complicated electromagnetic environment of electric automobile easily disturbs hall sensing
The simulation output of device, and then affect the precision of current measurement.
New-energy automobile quickly grows in recent years, for BMS (Battery Management System, battery management system
System) requirement also increasingly harsher, current detecting is as a part requisite in BMS system, its importance to BMS
Self-evident, one side current sensor needs for the real-time current of vehicle to feed back to driver or technical staff, is easy to slap
Hold the running status of electric vehicle, on the other hand, the precision of current sensor is directly connected to the estimation essence of electric automobile SOC
Degree, exception in current sensor or precision is inadequate, it will lead to SOC calculating error larger, or current measurement is forbidden to touch
A software protection strategy of dispatching a car leads to cutoff high.
Content of the invention
The technical problem to be solved is to provide a kind of current sensor based on diverter, it is desirable to provide one
Plant current measurement high precision, the current sensor of strong interference immunity.
The present invention is achieved in that a kind of current sensor based on diverter, adjusts including signal gathering unit, signal
Reason unit data translational correction unit；
Described signal gathering unit, including diverter, for carrying out current signal collection by described diverter, and will adopt
The original current signal collecting transmits to described signal condition unit；
Described signal condition unit, for being converted into described original current signal after target voltage signal, exports to institute
State data conversion correction unit；
Described data conversion corrects unit, for described target voltage signal is carried out analog digital conversion, conversion is generated
Current data is corrected, and exports to external detection system after obtaining target current data.
Further, described current sensor also includes correcting, with described data conversion, the dispensing unit that unit is connected；
Described dispensing unit, for the operation of receiving user's input configuration parameter, according to described user input configuration parameter
Operation generate different response parameters, be additionally operable to the current parameters described target current data is detected and exceed described response
During parameter, generate a response instruction to external detection system, so that external detection system takes correlation according to described response instruction
Measure.
Further, described dispensing unit includes：
Startup self-detection module, for the startup self-detection instruction of receive user, boots up self-inspection；
Off-line monitoring module, for the off-line monitoring setting of receive user, by the described target current data detecting
Current parameters are transmitted through the network to external system, so that described external system is realized to described electric current according to described current parameters
The monitoring of sensor；
Temperature alarming module, for the temperature alarming setting of receive user, when temperature temperature is detected and exceeding user setup
During degree alarming value, generate alarm signal, described alarm signal exceedes preset temperature alarming value in order to point out Current Temperatures；
Excessively stream alarm module, for the excessively stream alarm setting of receive user, when the electricity described target current data is detected
When stream parameter exceedes the excessively stream alarming value of user setup, generate alarm signal, described alarm signal surpasses in order to point out current flow
Cross preset electric current alarming value；
Self-defined detection module, for the self-defined setting of receive user, the self-defined setting according to described user is to institute
State target current data to be detected.
Further, described signal condition unit carries out differential amplification and voltage bias fortune to described original current signal
Calculate, obtain voltage range be on the occasion of target voltage signal after, described target voltage signal is transmitted to described data conversion school
Positive unit.
Further, described signal condition unit carries out two stage amplifer computing to described original current signal, obtains voltage
Scope be on the occasion of target voltage signal after, by described target voltage signal transmit to described data conversion correct unit.
Further, described data conversion correction unit includes data conversion module, temperature collect module data is processed
Module：
Described data conversion module, for described target voltage signal is carried out analog digital conversion, generates digital current data
And transmit to described data processing module；
Described temperature collect module, for gathering the temperature data of described diverter, and by the described temperature number collecting
According to transmitting to described data processing module；
Described data processing module, enters trip temperature for the linear dimensions according to described diverter and mends to described temperature data
Repay, obtain temperature compensation data, and according to described temperature compensation data, described digital current data is processed and revise, obtain
Transmit to external detection system to after described target current data.
The present invention compared with prior art, has the beneficial effects that：The current sensor based on diverter that the present invention provides,
Based on ohm law, in its internal circuit, do not comprise nonlinear device, because diverter has the extraordinary linearity and precision,
Ensure that the precision of current detecting, after carrying out analog digital conversion, output digit signals, to external detection system, resist dry simultaneously
Immunity is strong.
Brief description
Fig. 1 is a kind of structural representation of current sensor based on diverter that the embodiment of the present invention one provides.
Fig. 2 is a kind of structural representation of current sensor based on diverter that the embodiment of the present invention two provides.
Fig. 3 is the structural representation of the dispensing unit that the embodiment of the present invention three provides.
Fig. 4 is the structural representation that the data conversion that the embodiment of the present invention four provides corrects unit.
Fig. 5 is a kind of detailed construction schematic diagram of current sensor based on diverter that the embodiment of the present invention five provides.
Fig. 6 is a kind of schematic diagram of current sensor based on diverter that the embodiment of the present invention six provides.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
The Hall-type current sensor that electric automobile uses extensively above at present is based on Hall Effect due to its principle
(Hall effect), needs to use the magnetic core made by high permeability material, and non-linear and hysteresis effect is all high magnetic conduction materials
The inherent character of material, so output will obtain different results when electric current (former limit signal) is risen with same trend, declines.
For open loop type Hall current sensor, its work depends on the linearly interval of high magnetic conduction magnetic core, due to this biography
Magnetic flux at sensor direct measurement high magnetic conduction magnetic core air gap, then be more susceptible to magnetic core saturation, magnetic hysteresis, nonlinear impact, institute
Relatively low with the precision of the Hall current sensor of this open loop type typically ratio, and affected it is impossible to measure by hysteresis effect
The electric current of fast frequency, Measurement bandwidth is narrower.
Closed loop Hall current sensor increased secondary compensative winding on the basis of open loop type current sensor, its survey
Accuracy of measurement has been lifted compared with open loop type Hall element, but due to increased secondary compensative winding and its corresponding control loop,
Make cost up, volume increases, simultaneously because secondary compensative winding output is limited, magnetic also occurs under special circumstances
The situation of core saturation, causes measuring error.
No matter open loop type Hall current sensor or closed loop Hall current sensor, in actual applications, small current
Measurement is all not accurate.
Although current Ye You BMS manufacturer, whole-car firm are used diverter as current acquisition device, most base
It is all not do temperature-compensating in the current sensor of diverter, and be all analog signal output it is easy to be subject to environment to do
Disturb, the especially internal electromagnetic environment of Main Control Tank is increasingly complex, and interference problem is more prominent.
Based on above-mentioned principle, the invention provides a kind of current sensor based on diverter as shown in Figure 1, including letter
Number collecting unit 1, signal condition unit 2 data translational correction unit 3；
Signal gathering unit 1, including diverter, for carrying out current signal collection by described diverter, and will gather
To original current signal transmit to signal condition unit 2；
Signal condition unit 2, for being converted into, after target voltage signal, exporting and turning to data described original current signal
Change correction unit 3.Specifically, signal condition unit 3 carries out differential amplification and voltage bias computing to described original current signal,
Or carry out two stage amplifer computing simultaneously, obtain voltage range be on the occasion of target voltage signal after, by described target voltage signal
Transmit and correct unit to described data conversion.
Data conversion corrects unit 3, for described target voltage signal is carried out analog digital conversion, by the electric current of conversion generation
Data is corrected, and exports to external detection system after obtaining target current data.
The current sensor based on diverter for the present embodiment, its principle is based in Ohm's law, and circuit does not have non-thread
Property device, according to lumped-circuit characteristic, the non-constant width that the Measurement bandwidth of program electric current can do, quick alternation electricity can be measured
Stream；There is not return difference and hysteresis in linear unit simultaneously, so calibration avoids the need for calibrating again after completing for the first time；There is no magnetic
Ring, so very little, the saving Main Control Tank space that whole current sensor can do；Using numeral output, it is prevented effectively from electronic
The interference to current sensor for the electromagnetic environment of Automobile Complex.
Further, as shown in Fig. 2 current sensor also includes correcting, with data conversion, the configuration list that unit 3 is connected
Unit 4；
Dispensing unit 4, for the operation of receiving user's input configuration parameter, according to the behaviour of described user input configuration parameter
Make the different response parameter of setting, the current parameters being also used in detecting described target current data exceed described response parameter
When, generate a response instruction to external detection system, so that external detection system is taken measures on customs clearance according to described response instruction.
Specifically, as shown in figure 3, dispensing unit 4 includes：
Startup self-detection module 41, for the startup self-detection instruction of receive user, boots up self-inspection；
Off-line monitoring module 42, for the off-line monitoring setting of receive user, by the described target current data detecting
Current parameters be transmitted through the network to external system so that described external system according to described current parameters realize to described electricity
The monitoring of flow sensor；
Temperature alarming module 43, for the temperature alarming setting of receive user, exceedes user setup when temperature is detected
During temperature alarming value, generate alarm signal, described alarm signal exceedes preset temperature alarming value in order to point out Current Temperatures；
Excessively stream alarm module 44, for the excessively stream alarm setting of receive user, when detecting described target current data
When current parameters exceed the excessively stream alarming value of user setup, generate alarm signal, described alarm signal is in order to point out current flow
Exceed preset electric current alarming value；
Self-defined detection module 45, for the self-defined setting of receive user, right according to the self-defined setting of described user
Described target current data is detected.
Further, Fig. 4 shows that data conversion corrects the concrete structure of unit 3, including data conversion module 31, temperature
Acquisition module 32 data processing module 33：
Data conversion module 31, for described target voltage signal is carried out analog digital conversion, generates digital current data simultaneously
Transmit to data processing module 33；
Temperature collect module 32, for gathering the temperature data of described diverter, and by the described temperature data collecting
Transmit to data processing module 33；
Data processing module 33, enters trip temperature for the linear dimensions according to described diverter and mends to described temperature data
Repay, obtain temperature compensation data, and according to described temperature compensation data, described digital current data is processed and revise, obtain
Transmit to external detection system to after described target current data.
Below by Fig. 5, the present invention is further illustrated：
The design principle of the present invention mainly divides four major parts, joins including information gathering, information conditioning, data processing and application
Put, after the acquired input of signal of diverter, pass sequentially through signal condition unit, data conversion correction unit.
The collection of the current signal of Part I and Part II and signal conditioning circuit, mainly realize diverter output electricity
The gain-adjusted of pressure and bias-adjusted.After electric current flows through diverter, voltage will be produced according to Ohm's law diverter two ends, false
If diverter resistance value is R, electric current now be I it is assumed that now electric current positive, diverter both end voltage is just also, then point
The voltage U at stream device two endsiFor：
Ui=IR；
When the current flow is reversed, the voltage at diverter two ends will be negative value, that is,：
-Ui=-IR；
It is general that in order to take into account the problem of power consumption, the resistance of diverter is all very little, when flowing through electric current, diverter two ends
Voltage also will be very little, and when the current flow is reversed, the voltage at diverter two ends also reversely will become negative value；At collection
Reason, then need, by the voltage amplification at diverter two ends to suitable voltage range, will entirely export electricity using biasing circuit simultaneously
Pressure is raised to more than 0V.Hypothesis diverter resistance is 0.1m Ω, and the diverter range of design is ± 500A, then the output of diverter
Voltage range is ± 50mV, and this signal is amplified 50 times, applies the voltage bias of 2.5V it is possible to by original ± 50mV simultaneously
Voltage range be converted to 0～5V voltage range, the signal condition unit in the present embodiment is so that in throughflow journey on diverter
Reversal when can obtain a positive voltage output all the time.As in Fig. 5, module is 1. shown.
Preferably, it is possible to use differential amplification cooperation voltage bias obtain positive voltage output, can also use two-stage simultaneously
Amplifier is realized voltage gain respectively and is adjusted and voltage bias regulation.
Part III is data conversion and correction unit 3, first by the output voltage after conditioning through analog digital conversion
(in Fig. 2 module 2.) using temperature collection circuit (in Fig. 2 module 3.) collecting temperature data, because diverter is Linearization apparatus
Part, its resistance variation with temperature is predictable and is to determine, the built-in algorithm according to data encoding portion is to collection
The electric current returned carries out temperature-compensating, the current data after temperature-compensating is processed and revises, obtain revised
Current data.Because impact diverter gathers the factor of signal except temperature, also include thermo-electromotive force, diverter itself oneself
Manufacture deviation, for example conventional sensor with diverter precision great majority less than factors such as 3%, long-time stability coefficient lambda, these
In coefficient, some can be by data statisticss out and for the correction in actually used.
The Part IV of the present embodiment there is provided the dispensing unit 4 for facilitating user setup application configuration and transmission
(in Fig. 2 module 2.), this partly can be realized the startup self-detection of intelligent diverter (or Intelligent current sensor), offline supervise
The function of the applications such as survey, temperature alarming, excessively stream warning is it is also possible to pass through user's spread correlation function.Intelligent electric
The current data that flow sensor measures will send the host computer to current detecting in the way of digital signal from this partial circuit,
As entire car controller, BMS etc..In Fig. 2,4. module is the auxiliary power supply part of whole system.
It should be appreciated that being attached by corresponding pin between each unit in Fig. 5,1. passing through in such as Fig. 5 is drawn
Foot V_SHUNT is connected with 2. middle V_SHUNT pin, and remaining annexation in the same manner, omits not table.
A kind of schematic diagram of current sensor based on diverter provided in an embodiment of the present invention is as shown in fig. 6, be to tell about
Convenient, in figure illustrate only part of module.During work, need current sensor is attached in electrokinetic cell loop, will simultaneously
Numeral output connects to current information receiving terminal, you can complete the collection of current information.
The present embodiment is that the maximum advantage of the present embodiment is with low cost, electric current based on the current measurement based on diverter
Certainty of measurement is high, small volume, and intelligence degree is high.Current data, strong antijamming capability are transmitted by data circuit, module carries
Offline inspection function, diverter will be perceived by master control offline, and then is reported to the police.The present embodiment will be divided using discrete device
The collection of stream device signal, process are together processed so that shunt portion becomes a complete intelligent object, relatively with digital coding
Excellent, it is possible to use integrated form chip completes function above；Preferably current threshold can be arranged by current acquisition end real
Existing electric current warning function, preferably can also complete diverter and the bronze medal being connected with diverter by intelligence diverter simultaneously
The detection of temperature, realizes temperature alarming.Digital coding refers in the present embodiment (for example to be encrypted or oneself after data encoding
Define data packing manner) use digital communication；For example using CAN communication or using these process encryptions of LIN communications
Current information with packing.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of current sensor based on diverter is it is characterised in that described current sensor includes signal gathering unit, letter
Number conditioning unit data translational correction unit；
Described signal gathering unit, including diverter, for carrying out current signal collection by described diverter, and will collect
Original current signal transmit to described signal condition unit；
Described signal condition unit, for being converted into described original current signal after target voltage signal, exports to described number
According to translational correction unit；
Described data conversion corrects unit, for described target voltage signal is carried out analog digital conversion, by the electric current of conversion generation
Data is corrected, and exports to external detection system after obtaining target current data.
2. current sensor as claimed in claim 1 is it is characterised in that described current sensor also includes turning with described data
Change the dispensing unit that correction unit is connected；
Described dispensing unit, for the operation of receiving user's input configuration parameter, according to the behaviour of described user input configuration parameter
Make to generate different response parameters, be additionally operable to the current parameters described target current data is detected and exceed described response parameter
When, generate a response instruction to external detection system, so that external detection system is taken measures on customs clearance according to described response instruction.
3. current sensor as claimed in claim 2 is it is characterised in that described dispensing unit includes：
Startup self-detection module, for the startup self-detection instruction of receive user, boots up self-inspection；
Off-line monitoring module, for the off-line monitoring setting of receive user, by the electric current of the described target current data detecting
Parameter is transmitted through the network to external system, so that described external system is realized to described current sense according to described current parameters
The monitoring of device；
Temperature alarming module, for the temperature alarming setting of receive user, when temperature report temperature is detected and exceeding user setup
During alert value, generate alarm signal, described alarm signal exceedes preset temperature alarming value in order to point out Current Temperatures；
Excessively stream alarm module, for the excessively stream alarm setting of receive user, when the electric current described target current data is detected is joined
When number exceedes the excessively stream alarming value of user setup, generate alarm signal, described alarm signal is pre- in order to point out current flow to exceed
The electric current alarming value put；
Self-defined detection module, for the self-defined setting of receive user, the self-defined setting according to described user is to described mesh
Mark current data is detected.
4. current sensor as claimed in claim 1 is it is characterised in that described signal condition unit is believed to described primary current
Number carry out differential amplification and voltage bias computing, obtain voltage range be on the occasion of target voltage signal after, by described target electricity
Pressure signal transmission corrects unit to described data conversion.
5. current sensor as claimed in claim 1 is it is characterised in that described signal condition unit is believed to described primary current
Number carry out two stage amplifer computing, obtain voltage range be on the occasion of target voltage signal after, described target voltage signal is transmitted
Correct unit to described data conversion.
6. current sensor as claimed in claim 1 is it is characterised in that described data conversion correction unit includes data conversion
Module, temperature collect module data processing module：
Described data conversion module, for described target voltage signal is carried out analog digital conversion, generates digital current data and passes
Transport to described data processing module；
Described temperature collect module, for gathering the temperature data of described diverter, and the described temperature data collecting is passed
Transport to described data processing module；
Described data processing module, carries out temperature-compensating for the linear dimensions according to described diverter to described temperature data,
Obtain temperature compensation data, and according to described temperature compensation data, described digital current data is processed and revise, obtain
Transmit to external detection system after described target current data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610443757.7A CN106443150A (en) | 2016-06-20 | 2016-06-20 | Current sensor based on diverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610443757.7A CN106443150A (en) | 2016-06-20 | 2016-06-20 | Current sensor based on diverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106443150A true CN106443150A (en) | 2017-02-22 |
Family
ID=58183554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610443757.7A Pending CN106443150A (en) | 2016-06-20 | 2016-06-20 | Current sensor based on diverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106443150A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505483A (en) * | 2017-10-13 | 2017-12-22 | 沃尔特电子（苏州）有限公司 | A kind of high current, voltage monitor and method |
| CN107861069A (en) * | 2017-10-23 | 2018-03-30 | 宁德时代新能源科技股份有限公司 | Detection circuit and method, detector, battery device, vehicle and computer-readable storage medium |
| CN108089141A (en) * | 2017-11-16 | 2018-05-29 | 山东联合电力技术有限公司 | A kind of error correcting method and device of the current measuring device based on current divider |
| CN109239454A (en) * | 2018-10-09 | 2019-01-18 | 沃尔特电子（苏州）有限公司 | A kind of direct current energy meter of automotive grade |
| CN109955732A (en) * | 2017-12-14 | 2019-07-02 | 丰田自动车株式会社 | The charging unit of vehicle |
| CN110501558A (en) * | 2018-05-18 | 2019-11-26 | Abb瑞士股份有限公司 | Terminal block and associated method for current measurement |
| CN112763779A (en) * | 2021-01-28 | 2021-05-07 | 湖北三江航天红峰控制有限公司 | Device for enlarging detection range of current sensor |
| CN113447877A (en) * | 2021-06-16 | 2021-09-28 | 合肥国轩高科动力能源有限公司 | System and method for calibrating upper computer of current measuring shunt |
| CN116735929A (en) * | 2023-06-12 | 2023-09-12 | 深圳市开步电子有限公司 | Shunt, new energy automobile and energy storage equipment thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2689239Y (en) * | 2003-12-16 | 2005-03-30 | 江苏林洋电子有限公司 | Split inputting current sensors |
| CN101231311A (en) * | 2008-02-26 | 2008-07-30 | 徐伟专 | Wide band high pressure intelligent resistance type current sensor |
| CN102165323A (en) * | 2008-07-23 | 2011-08-24 | 马克西姆综合产品公司 | Isolated current sensor |
| CN102478631A (en) * | 2010-11-26 | 2012-05-30 | 比亚迪股份有限公司 | Battery performance parameter measuring device and measuring method thereof |
| CN102809729A (en) * | 2012-05-11 | 2012-12-05 | 武汉中原电子集团有限公司 | Electricity metering device for power battery |
| CN102854366A (en) * | 2012-09-12 | 2013-01-02 | 西安交通大学 | Low current measuring device and low current measuring method in direct-current power distribution and consumption system |
| CN103477234A (en) * | 2011-03-29 | 2013-12-25 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Current sensor |
| CN103487631A (en) * | 2013-10-10 | 2014-01-01 | 重庆邮电大学 | Modulation-demodulation type current sensor |
| JP2015045634A (en) * | 2013-07-30 | 2015-03-12 | 旭化成エレクトロニクス株式会社 | Current sensor |
-
2016
- 2016-06-20 CN CN201610443757.7A patent/CN106443150A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2689239Y (en) * | 2003-12-16 | 2005-03-30 | 江苏林洋电子有限公司 | Split inputting current sensors |
| CN101231311A (en) * | 2008-02-26 | 2008-07-30 | 徐伟专 | Wide band high pressure intelligent resistance type current sensor |
| CN102165323A (en) * | 2008-07-23 | 2011-08-24 | 马克西姆综合产品公司 | Isolated current sensor |
| CN102478631A (en) * | 2010-11-26 | 2012-05-30 | 比亚迪股份有限公司 | Battery performance parameter measuring device and measuring method thereof |
| CN103477234A (en) * | 2011-03-29 | 2013-12-25 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Current sensor |
| CN102809729A (en) * | 2012-05-11 | 2012-12-05 | 武汉中原电子集团有限公司 | Electricity metering device for power battery |
| CN102854366A (en) * | 2012-09-12 | 2013-01-02 | 西安交通大学 | Low current measuring device and low current measuring method in direct-current power distribution and consumption system |
| JP2015045634A (en) * | 2013-07-30 | 2015-03-12 | 旭化成エレクトロニクス株式会社 | Current sensor |
| CN103487631A (en) * | 2013-10-10 | 2014-01-01 | 重庆邮电大学 | Modulation-demodulation type current sensor |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505483A (en) * | 2017-10-13 | 2017-12-22 | 沃尔特电子（苏州）有限公司 | A kind of high current, voltage monitor and method |
| CN107861069A (en) * | 2017-10-23 | 2018-03-30 | 宁德时代新能源科技股份有限公司 | Detection circuit and method, detector, battery device, vehicle and computer-readable storage medium |
| CN107861069B (en) * | 2017-10-23 | 2020-07-14 | 宁德时代新能源科技股份有限公司 | Detection circuit and method, detector, battery device, vehicle and computer-readable storage medium |
| CN108089141A (en) * | 2017-11-16 | 2018-05-29 | 山东联合电力技术有限公司 | A kind of error correcting method and device of the current measuring device based on current divider |
| CN108089141B (en) * | 2017-11-16 | 2019-12-24 | 山东联合电力技术有限公司 | Error correction method and device of current measuring device based on current divider |
| CN109955732A (en) * | 2017-12-14 | 2019-07-02 | 丰田自动车株式会社 | The charging unit of vehicle |
| CN110501558A (en) * | 2018-05-18 | 2019-11-26 | Abb瑞士股份有限公司 | Terminal block and associated method for current measurement |
| CN109239454A (en) * | 2018-10-09 | 2019-01-18 | 沃尔特电子（苏州）有限公司 | A kind of direct current energy meter of automotive grade |
| CN112763779A (en) * | 2021-01-28 | 2021-05-07 | 湖北三江航天红峰控制有限公司 | Device for enlarging detection range of current sensor |
| CN113447877A (en) * | 2021-06-16 | 2021-09-28 | 合肥国轩高科动力能源有限公司 | System and method for calibrating upper computer of current measuring shunt |
| CN116735929A (en) * | 2023-06-12 | 2023-09-12 | 深圳市开步电子有限公司 | Shunt, new energy automobile and energy storage equipment thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106443150A (en) | Current sensor based on diverter | |
| CN106841734A (en) | A kind of current sensor and electric current detecting method based on current divider | |
| CN205941678U (en) | Power battery current detection device based on shunt | |
| CN101431294B (en) | Voltage divider circuit and magnetic sensor circuit | |
| CN109884377A (en) | The hall signal measuring device and method of detection range automatic adjustment | |
| CN201754115U (en) | Digital pressure meter | |
| CN108695569A (en) | A kind of current sensor caliberating device | |
| CN111948445B (en) | Power measurement circuit, method and device | |
| CN207281217U (en) | A kind of amplifier circuit of compatibility electric current and temperature detection | |
| CN209841948U (en) | Adjustable Hall voltage sensor | |
| CN107907269A (en) | A kind of resistance bridge sensor diagnostics circuit | |
| CN105913628B (en) | Magnetic Sensor output circuit and data wireless transmission and control system method | |
| CN208334490U (en) | A kind of micro-current Precision measurement circuit | |
| CN204903445U (en) | Hydrogen concentration detector | |
| CN104006903A (en) | Method for detecting temperature sensor on engine inlet port | |
| CN211718374U (en) | Current detection circuit and current detection equipment | |
| CN110032236B (en) | DC sensor circuit with arbitrary bias voltage output | |
| CN106291431A (en) | A kind of tracking accuracy measuring method of current sensor | |
| CN207649766U (en) | Faint light current detection circuit | |
| CN114460422A (en) | Partial discharge detector | |
| CN209280908U (en) | Large range high precision current sensor metering device and system | |
| CN103149417A (en) | Circuit measuring module and method for measuring voltage difference of power source device | |
| CN203084063U (en) | Measurement circuit module | |
| CN209372241U (en) | Temperature detection control circuit and temperature-detecting device | |
| CN111965414B (en) | Power measurement circuit, method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20200103 |
|
| AD01 | Patent right deemed abandoned |