CN109752593A - Detection system and electric energy computation chip and its equipment - Google Patents
Detection system and electric energy computation chip and its equipment Download PDFInfo
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- CN109752593A CN109752593A CN201910049187.7A CN201910049187A CN109752593A CN 109752593 A CN109752593 A CN 109752593A CN 201910049187 A CN201910049187 A CN 201910049187A CN 109752593 A CN109752593 A CN 109752593A
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Abstract
This application involves integrated circuit fields, disclose a kind of detection system and electric energy computation chip and its equipment, can accurately judge the first a reference source whether failure or its generate first reference voltage whether voltage drift has occurred, to ensure that the stability and reliability of the first analog-to-digital conversion module.The system includes the first analog-to-digital conversion module, provides the first a reference source of the first reference voltage to first analog-to-digital conversion module；And, the second analog-to-digital conversion module coupled respectively with first a reference source and the second a reference source, first reference voltage for exporting first a reference source is converted into the first digital signal, which is used to provide the second reference voltage to second analog-to-digital conversion module；With the signal processing module coupled with second analog-to-digital conversion module, for by processing and detect second analog-to-digital conversion module output first digital signal to determine whether first a reference source normal.
Description
Technical field
This application involves integrated circuit fields, in particular to detection technique and Electric Energy Metering Technology.
Background technique
In electric energy meter in electrical energy measurement, power network current, voltage signal are all generally passed through into electric energy meter, sensor and sampling
Network is converted to the input voltage peace for meeting analog-to-digital conversion module (Analog to Digital Converter, referred to as: ADC)
The voltage signal of gamut, the digital signal after being converted by ADC are input to signal processing unit again, carry out power calculation and meter
Amount.
So, metering system precision and stability is directly influenced by the performance of ADC, and the conversion accuracy of ADC and stability
Again by its provide reference voltage a reference source determines, a reference source break down or occur voltage drift can make measure knot
There is deviation in fruit, therefore how to guarantee that the reliable and stable of a reference source becomes problem nowadays in the urgent need to address.
Summary of the invention
The application's is designed to provide a kind of detection system and electric energy computation chip and its equipment, can guarantee that modulus turns
Change the mold the conversion accuracy and stability of block.
To solve the above-mentioned problems, this application discloses a kind of detection system, including the first analog-to-digital conversion module, to this
One analog-to-digital conversion module provides the first a reference source of the first reference voltage；And
Second analog-to-digital conversion module is coupled with first a reference source and the second a reference source respectively, is used for first benchmark
First reference voltage of source output is converted into the first digital signal, which is used for second analog-to-digital conversion module
Second reference voltage is provided；
Signal processing module is coupled with second analog-to-digital conversion module, for being turned by handling and detecting second modulus
First digital signal of block output is changed the mold to determine whether first a reference source is normal.
In a preferred embodiment, which also couples with the signal processing module, the signal processing mould
Block is also used to carry out electrical energy measurement to the signal that first analog-to-digital conversion module exports.
In a preferred embodiment, further include temperature detecting module, coupled with second analog-to-digital conversion module；
The temperature measurement signal that second analog-to-digital conversion module is also used to export the temperature detecting module is converted into second
Digital signal, and second digital signal is output to the signal processing module to carry out temperature-compensating to the system；
Second analog-to-digital conversion module is executed respectively to first base in piece in different times in a time-multiplexed manner
The conversion of quasi- voltage and conversion to the temperature measurement signal.
In a preferred embodiment, the sample circuit for further including reference current source and being coupled with the reference current source, the sampling
Circuit also couples respectively with the first signal source and first analog-to-digital conversion module couples；
The reference current source is for outputting reference current signal to the sample circuit both ends, and the sample circuit is for being adopted
The current signal of first signal source and the mixed signal of the reference current signal collected is converted into voltage signal and is output to
First analog-to-digital conversion module.
First a reference source also provides first reference voltage to the reference current source.
In a preferred embodiment, further include RC filter that input terminal is coupled with the sample circuit, the RC filter it is defeated
Outlet is coupled to the input terminal of first analog-to-digital conversion module；
The first impedor coupled with the sample circuit both ends.
It in a preferred embodiment, further include the first detection mould coupled with two input terminals of first analog-to-digital conversion module
Block, the first detection module are coupled to the signal processing module, and the first detection module is for detecting the first analog-to-digital conversion mould
With the presence or absence of abnormal AC signal in the signal of the first input end of block and the second input terminal.
In a preferred embodiment, further includes:
Second detection module, wherein input terminal is coupled with the reference current source, and output end is coupled to the signal processing module,
For detecting whether the reference current source occurs open-circuit fault, and feed back to the signal processing module；
Second impedor, wherein one end is coupled with the reference current source, and the other end is coupled to ground.
In a preferred embodiment, which is sampled using copper-manganese or current transformer.
In a preferred embodiment, second a reference source and first a reference source be power supply output from different systems or
The output of person's difference voltage-stablizer.
Disclosed herein as well is a kind of electric energy computation chip, which includes detection system as previously described
System.
Disclosed herein as well is a kind of electric energy measuring equipment, which includes the electrical energy measurement core being described above
Piece.
In the application embodiment, compared with prior art, following advantages is included at least:
Firstly, increasing the second analog-to-digital conversion module and the second a reference source, which will be the first mould
The first reference voltage that number conversion module provides the first a reference source output of reference voltage is converted into the first digital signal and inputs
To signal processing module, to be handled and be detected.Further, in order to which the conversion for guaranteeing second analog-to-digital conversion module is reliable
Property, the second a reference source for providing the second reference voltage to second analog-to-digital conversion module is designed to that with the first a reference source be to come from
Not the power supply output of homologous ray or the output of different voltage-stablizers, so that the outputting reference voltage of the first and second a reference sources is almost
It can not occur simultaneously, with amplitude and equidirectional offset；This greatly ensure that the conversion accuracy of the first analog-to-digital conversion module
And stability, and then keep detection system more stable and reliable.
Secondly, above-mentioned second analog-to-digital conversion module as the analog-digital converter of the first reference voltage in addition to can also be used to do
The otherwise detection of the analog-digital converter of such as temperature detecting module, if making the analog-digital converter of temperature detecting module,
It is converted into being input to signal processing module after the second digital signal for the temperature measurement signal to be handled and fed back, so that system
It can be compensated according to the temperature characterisitic of the first a reference source, detection or measurement error are caused by temperature to reduce；It considers
Detection can be non real-time nature and to avoid conflicting, which can in a time-multiplexed manner in different times
The conversion to the conversion of first reference voltage and to the temperature measurement signal is executed in piece respectively.
On the basis of the above, judge whether the parameter of sample circuit is sent out by acquiring the signal of introduced reference current source
Now change, and the reference current source can be converted to by above-mentioned first a reference source or the second a reference source, keep resource more
Place utilizes, and reduces power consumption burden to system；And sample circuit both ends are connected to RC filter, are being input to sampled signal
RC filter is first passed through before sef-adapting filter, the RC filter uses the structure of difference, can effectively inhibit in signal
Common mode interference；Detection system is all significantly reduced above due to signal interference bring measurement error.
Meanwhile " reference current source burn out detection and safeguard measure " also is introduced respectively, " line break detection and protection are arranged
Apply ", " firewire burn out detection and safeguard measure " devises detection system and protection circuit, also very for the broken string operating condition
Increase metering system reliability of operation and safety locating for the detection system in big degree.
More than, greatly realize the stability and reliability of the detection system, and the increased second analog-to-digital conversion mould of institute
Block and the second a reference source can be reused by many places, not cause more burden to system, and the design do not need according to
Rely the support in specific technique or device, be conducive to realize and implement.
A large amount of technical characteristic is described in the description of the present application, is distributed in each technical solution, if to enumerate
Out if the combination (i.e. technical solution) of all possible technical characteristic of the application, specification can be made excessively tediously long.In order to keep away
Exempt from this problem, each technical characteristic disclosed in the application foregoing invention content, below in each embodiment and example
Each technical characteristic disclosed in disclosed each technical characteristic and attached drawing, can freely be combined with each other, to constitute each
The new technical solution (these technical solutions have been recorded because being considered as in the present specification) of kind, unless the group of this technical characteristic
Conjunction is technically infeasible.For example, disclosing feature A+B+C in one example, spy is disclosed in another example
A+B+D+E is levied, and feature C and D are the equivalent technologies means for playing phase same-action, it, can not as long as technically selecting a use
Can use simultaneously, feature E can be technically combined with feature C, then, and the scheme of A+B+C+D because technology is infeasible should not
It is considered as having recorded, and the scheme of A+B+C+E should be considered as being described.
Detailed description of the invention
Fig. 1 is the circuit block diagram according to the detection system of the application first embodiment
Fig. 2 is the circuit block diagram according to one embodiment of the application first embodiment
Fig. 3 is the reality according to the electric current self calibration detection circuit with benchmark self-checking function of the application first embodiment
Apply the circuit block diagram of example
Specific embodiment
In the following description, in order to make the reader understand this application better, many technical details are proposed.But this
The those of ordinary skill in field is appreciated that even if without these technical details and many variations based on the following respective embodiments
And modification, the application technical solution claimed also may be implemented.
Implementation to keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with attached drawing to the application
Mode is described in further detail.
The first embodiment of the application is related to a kind of detection system, and circuit block diagram is as shown in Figure 1, the detection system packet
The first analog-to-digital conversion module is included, the first a reference source of the first reference voltage is provided to the first analog-to-digital conversion module, respectively with first
Second analog-to-digital conversion module of a reference source and the coupling of the second a reference source, and the signal processing coupled with the second analog-to-digital conversion module
Module；Wherein, the second analog-to-digital conversion module is used to for the first reference voltage that the first a reference source exports being converted into the first number letter
Number, the second a reference source is used to provide the second reference voltage to the second analog-to-digital conversion module, and signal processing module is for passing through processing
Whether first digital signal that second analog-to-digital conversion module exports is normal with determination first a reference source with detecting.
The specific work process of the detection system are as follows: the first a reference source generates high-precision first reference voltage and is input to
In first analog-to-digital conversion module, the first required reference voltage when providing analog-to-digital conversion for it；Second a reference source is the second modulus
Conversion module provides the second reference voltage；Second analog-to-digital conversion module using the first reference voltage caused by the first a reference source as
Detection input, is converted into the first digital signal for first reference voltage, and first digital signal is output at signal
Manage module；Signal processing module is detected and is handled to the first reference voltage that the second analog-to-digital conversion module exports, to judge
Whether the first a reference source has occurred failure or whether its first reference voltage generated has occurred voltage drift etc..
The producing method of second a reference source be it is diversified, optionally, second a reference source and the first a reference source are come
From different system or chip, for example, second a reference source is the peripheral system of the detection system or the power supply (VCC) of chip；
Alternatively, second a reference source is to be depressured to generate by different voltage-stablizers (LDO) from the first a reference source.
Optionally, which also couples with signal processing module, and signal processing module is also used to this
The signal of first analog-to-digital conversion module output is measured and is handled.
Optionally, second analog-to-digital conversion module and the signal processing module to the first a reference source and then monitor in real time, or
Person's timesharing monitoring.
Optionally, which further includes temperature detecting module, temperature detecting module and second analog-to-digital conversion module
Coupling；Second analog-to-digital conversion module is used to for the temperature measurement signal that the temperature detecting module exports to be converted into the second number at this time
Word signal, and second digital signal is output to the signal processing module to carry out temperature-compensating to the system；And this
Two analog-to-digital conversion modules execute in segment respectively in different times in a time-multiplexed manner turns first reference voltage
It changes and the conversion to the temperature measurement signal.
Specifically, the second analog-to-digital conversion module is used to do the analog-digital converter of temperature detecting module, root is enabled the system to
It is compensated according to the temperature characterisitic of the first a reference source, to generate the beneficial effect for reducing and causing detection or measurement error by temperature
Fruit.
Optionally, which can be temperature sensor.
Optionally, which further includes reference current source and the sample circuit that couples with the reference current source, this is adopted
Sample circuit also couples respectively with the first signal source and first analog-to-digital conversion module couples；The reference current source is used for outputting reference
To the sample circuit both ends, which is used for the current signal of its collected first signal source and should current signal
The mixed signal of reference current signal is converted into voltage signal and is output to first analog-to-digital conversion module.
Specifically, the frequency of the first signal source is f0, the frequency f1 of reference current source is greater than f0 and is not the integral multiple of f0,
The two current signals are superimposed upon sample circuit both ends simultaneously, are converted into voltage signal by sample circuit, later will be defeated to voltage
Signal processing module is arrived out；Signal processing module one side is handled the voltage signal to obtain the electric current of the first signal source
On the other hand the signal extraction that frequency is f1 is come out, and then can judge whether the parameter of sample circuit is become by feature
Change.The introducing of the reference current source reduces detection system due to signal interference bring measurement error.
Optionally, which can be, but not limited to be sampled using copper-manganese or current transformer.
The set-up mode of the reference current source be it is diversified, optionally, which is independent current；It can
Selection of land, which is the first reference voltage generated by first a reference source or second a reference source generates the
What two benchmark voltage transformations obtained.
Optionally, which further includes the first detection mould coupled with two input terminals of the first analog-to-digital conversion module
Block, the first detection module are coupled to signal processing module, and the first detection module is for detecting the first analog-to-digital conversion module
With the presence or absence of abnormal AC signal (e.g., interference signal) in the signal of first input end and the second input terminal.
Optionally, first detection module further comprises detector and detection algorithm, in order to prevent because of the first analog-to-digital conversion
The first input end of module and the second input terminal cause to judge by accident there are interference signal, which can pass through detection first
Abnormal AC signal on the first input end of analog-to-digital conversion module and the second input terminal determines the firewire of this detection system
Whether really disconnect, and feeds back to signal processing module and carry out processing or signal processing module by sentencing this with PERCOM peripheral communication
Other result passes to ammeter maintenance personnel.
Optionally, which further includes the RC filter that input terminal is coupled with sample circuit, the RC filter it is defeated
Outlet is coupled to the input terminal of the first analog-to-digital conversion module, which can effectively inhibit the common mode interference in signal, into
And improve the accuracy of detection system metering.
One embodiment of RC filter is by resistor R1, capacitor C1, resistor R2 and capacitor C2 in the application
Composition, as shown in figure 3, can effectively inhibit the common mode interference in signal using the form of symmetric difference.
Optionally, which further includes the first impedor coupled with sample circuit both ends, this first impedance element
Part can be latent firmly by signal when the sampling line of the detection system is disconnected or fallen off, and prevents metering serious distortion, Duo Ji electricity
The generation for the phenomenon that taking.
Optionally, which can be resistor, capacitor or inductance.
Optionally, which further includes the second detection module and the second impedor；This second detection module it is defeated
Enter end to couple with the reference current source, the output end of this second detection module is coupled to the signal processing module, this second detection
The output voltage situation of module moment monitoring criteria current source, for detecting whether the reference current source occurs open-circuit fault, and
Feed back to signal processing module；This second impedor one end is coupled with the reference current source, and the other end is coupled to ground, this first
Impedor provides continuous current circuit when open-circuit fault occurs for reference current source, plays the role of protection.
Optionally, which can be resistor, capacitor or inductance.
Those skilled in the art are it is to be understood that be invariable since electric current self calibration theory is based on reference current source
, when reference current source is there is a situation where opening a way, it will the sampling resistor variation for causing system to think that sample circuit is related to
To the value of very little, so that the first signal source (such as power grid) is calibrated to very big value, this is in ammeter metering, most intuitive result
It exactly will lead to the excessive charging of ammeter, bring loss to user.In addition, current source open circuit will cause uncontrollable damage to system
Evil.
The function of signal processing module in the application be it is diversified and expansible, optionally, the signal processing
Module is used to detect the digital signal of the second analog-to-digital conversion module output and and then breakdown judge and processing accordingly；Optionally,
The digital signal that the signal processing module is used to export the first analog-to-digital conversion module carries out electrical energy measurement and breakdown judge, place
Reason；Optionally, the signal processing module is for receiving and handling broken string situation；Optionally, the signal processing module and outside are logical
News.
Fig. 2 is the circuit block diagram according to one embodiment of the application first embodiment
Fig. 3 is the reality according to the electric current self calibration detection circuit with benchmark self-checking function of the application first embodiment
Apply the circuit block diagram of example
The application second embodiment relates to a kind of electric energy computation chip, which includes the application first
The detection system that embodiment is related to and the possessed beneficial effect with the detection system.
The electric energy computation chip is by use, the electric energy computation chip can be obtained by the way that the detection system is accurate
To continuous data, if AC signal is interfered by external signal, the RC for the differential configuration that can be accessed by sample circuit
Filter filters out interference, or introduces reference current source and the signal by acquiring the reference current source judges the ginseng of sample circuit
Whether number finds to change, or for the detection of the operating conditions such as broken string and the emergency protection measure of correspondence operating condition taken, etc.；Such as
This, greatly reduces the measurement error of electric energy computation chip, ensure that the stability of electric energy computation chip.
The application third embodiment relates to a kind of electric energy measuring equipment, which includes the application first
The detection system being related to and the possessed beneficial effect with the detection system.
Wherein, the electric energy measuring equipment is in use, the electric energy measuring equipment can be accurate by the detection system
Obtain continuous data, if AC signal by external signal interfere, can pass through sample circuit access differential configuration
RC filter filter out interference, or introduce reference current source and the signal by acquiring the reference current source judges sample circuit
Parameter whether find to change, or for the detection of the operating conditions such as broken string and emergency protection measure of correspondence operating condition taken, etc.；
In this way, greatly reducing the measurement error of electric energy measuring equipment, the stability of electric energy measuring equipment ensure that.
It should be noted that relational terms such as first and second and the like are only in the application documents of this patent
For distinguishing one entity or operation from another entity or operation, without necessarily requiring or implying these entities
Or there are any actual relationship or orders between operation.Moreover, the terms "include", "comprise" or its any other
Variant is intended to non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only
It including those elements, but also including other elements that are not explicitly listed, or further include for this process, method, object
Product or the intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence " including one ", not
There is also other identical elements in the process, method, article or apparatus that includes the element for exclusion.The application of this patent
In file, if it is mentioned that certain behavior is executed according to certain element, then refers to the meaning for executing the behavior according at least to the element, wherein
Include two kinds of situations: executing the behavior according only to the element and the behavior is executed according to the element and other elements.Multiple,
Repeatedly, the expression such as a variety of include 2,2 times, 2 kinds and 2 or more, 2 times or more, two or more.
It is included in disclosure of this application with being considered as globality in all documents that the application refers to, so as to
It can be used as the foundation of modification if necessary.In addition, it should also be understood that, the foregoing is merely the preferred embodiments of this specification, and
The non-protection scope for being used to limit this specification.It is all this specification one or more embodiment spirit and principle within, institute
Any modification, equivalent substitution, improvement and etc. of work, should be included in this specification one or more embodiment protection scope it
It is interior.
Claims (10)
1. a kind of detection system, which is characterized in that including the first analog-to-digital conversion module, the first analog-to-digital conversion module of Xiang Suoshu is provided
First a reference source of the first reference voltage；And
Second analog-to-digital conversion module is coupled with first a reference source and the second a reference source respectively, is used for first benchmark
First reference voltage of source output is converted into the first digital signal, and second a reference source is used to turn to second modulus
It changes the mold block and the second reference voltage is provided；
Signal processing module is coupled with second analog-to-digital conversion module, for being turned by handling and detecting second modulus
Whether first digital signal for changing the mold block output is normal with determination first a reference source.
2. the system as claimed in claim 1, which is characterized in that first analog-to-digital conversion module also with the signal processing mould
Block coupling, the signal processing module are also used to carry out electrical energy measurement to the signal that first analog-to-digital conversion module exports.
3. the system as claimed in claim 1, which is characterized in that further include temperature detecting module, with second analog-to-digital conversion
Module coupling；
Second analog-to-digital conversion module is also used to the temperature measurement signal that the temperature detecting module exports being converted into second
Digital signal, and second digital signal is output to the signal processing module to carry out temperature-compensating to the system；
Second analog-to-digital conversion module is executed respectively to first base in piece in different times in a time-multiplexed manner
The conversion of quasi- voltage and conversion to the temperature measurement signal.
4. system as claimed in claim 2, which is characterized in that further include reference current source and coupled with the reference current source
Sample circuit, the sample circuit also couples respectively with the first signal source and first analog-to-digital conversion module coupling；
The reference current source is used for for outputting reference current signal to the sample circuit both ends, the sample circuit by it
The current signal of collected first signal source and the mixed signal of the reference current signal are converted into voltage signal simultaneously
It is output to first analog-to-digital conversion module.
First a reference source also provides first reference voltage to the reference current source.
5. system as claimed in claim 4, which is characterized in that further include the RC filtering that input terminal is coupled with the sample circuit
Device, the output end of the RC filter are coupled to the input terminal of first analog-to-digital conversion module；
The first impedor coupled with the sample circuit both ends.
6. system as described in claim 4 or 5, which is characterized in that further include two with first analog-to-digital conversion module
The first detection module of input terminal coupling, the first detection module are coupled to the signal processing module, first detection
Module is for detecting in the first input end of first analog-to-digital conversion module and the signal of the second input terminal with the presence or absence of abnormal
AC signal.
7. system as claimed in claim 6, which is characterized in that further include:
Second detection module, wherein input terminal is coupled with the reference current source, and output end is coupled to the signal processing module,
For detecting whether the reference current source occurs open-circuit fault, and feed back to the signal processing module；
Second impedor, wherein one end is coupled with the reference current source, and the other end is coupled to ground.
8. the system as claimed in claim 1, which is characterized in that second a reference source is from not with first a reference source
The power supply output of same system or the output of different voltage-stablizers.
9. a kind of electric energy computation chip, which is characterized in that the electric energy computation chip includes as described in claim any one of 1-8
Detection system.
10. a kind of electric energy measuring equipment, which is characterized in that the electric energy measuring equipment includes electric energy meter as claimed in claim 9
Measure chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049187.7A CN109752593B (en) | 2019-01-18 | Detection system, electric energy metering chip and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049187.7A CN109752593B (en) | 2019-01-18 | Detection system, electric energy metering chip and equipment thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109752593A true CN109752593A (en) | 2019-05-14 |
| CN109752593B CN109752593B (en) | 2024-07-12 |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236433A (en) * | 2008-01-28 | 2008-08-06 | 南京航空航天大学 | Hardware redundancy based highly reliable A/D collection system and failure testing method |
| CN201681123U (en) * | 2010-05-20 | 2010-12-22 | 威胜集团有限公司 | High-accuracy electric energy metering module |
| CN202153235U (en) * | 2011-07-08 | 2012-02-29 | 武汉阿迪克电子有限公司 | Bidirectional direct current electric energy meter |
| US20140111215A1 (en) * | 2011-06-30 | 2014-04-24 | Panasonic Corporation | Analogue measurement data detection system and battery voltage detection system |
| WO2015085469A1 (en) * | 2013-12-09 | 2015-06-18 | 吉瑞高新科技股份有限公司 | System and method for detecting power supply voltage and power supply system |
| CN105388345A (en) * | 2015-12-24 | 2016-03-09 | 福建利利普光电科技有限公司 | Oscilloscope enabling internal phase to be automatically calibrated |
| CN105628991A (en) * | 2014-11-12 | 2016-06-01 | 刘海先 | Error correction method and device for standard source |
| CN205304767U (en) * | 2016-01-22 | 2016-06-08 | 安徽江淮汽车股份有限公司 | Analog to digital conversion circuit with two reference sources |
| CN106324479A (en) * | 2016-08-11 | 2017-01-11 | 上海东软载波微电子有限公司 | Chip calibration method and circuit, and chip |
| CN106961279A (en) * | 2017-03-22 | 2017-07-18 | 北京新能源汽车股份有限公司 | A kind of analog-digital converter and automobile |
| CN207074235U (en) * | 2017-05-26 | 2018-03-06 | 吉林大学 | A kind of long period seismic electrical signal acquisition system |
| CN207833005U (en) * | 2018-01-22 | 2018-09-07 | 深圳市锐能微科技有限公司 | The detection circuit and electric energy meter of circuit transfer function variation |
| CN108957119A (en) * | 2018-09-19 | 2018-12-07 | 钜泉光电科技(上海)股份有限公司 | Biradical quasi- mutually inspection electrical parameter detection circuit and the electric energy computation chip of sample circuit |
| CN109188074A (en) * | 2018-10-11 | 2019-01-11 | 钜泉光电科技(上海)股份有限公司 | A kind of biradical standard is mutual to examine circuit, method and electric energy computation chip |
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236433A (en) * | 2008-01-28 | 2008-08-06 | 南京航空航天大学 | Hardware redundancy based highly reliable A/D collection system and failure testing method |
| CN201681123U (en) * | 2010-05-20 | 2010-12-22 | 威胜集团有限公司 | High-accuracy electric energy metering module |
| US20140111215A1 (en) * | 2011-06-30 | 2014-04-24 | Panasonic Corporation | Analogue measurement data detection system and battery voltage detection system |
| CN202153235U (en) * | 2011-07-08 | 2012-02-29 | 武汉阿迪克电子有限公司 | Bidirectional direct current electric energy meter |
| WO2015085469A1 (en) * | 2013-12-09 | 2015-06-18 | 吉瑞高新科技股份有限公司 | System and method for detecting power supply voltage and power supply system |
| CN105628991A (en) * | 2014-11-12 | 2016-06-01 | 刘海先 | Error correction method and device for standard source |
| CN105388345A (en) * | 2015-12-24 | 2016-03-09 | 福建利利普光电科技有限公司 | Oscilloscope enabling internal phase to be automatically calibrated |
| CN205304767U (en) * | 2016-01-22 | 2016-06-08 | 安徽江淮汽车股份有限公司 | Analog to digital conversion circuit with two reference sources |
| CN106324479A (en) * | 2016-08-11 | 2017-01-11 | 上海东软载波微电子有限公司 | Chip calibration method and circuit, and chip |
| CN106961279A (en) * | 2017-03-22 | 2017-07-18 | 北京新能源汽车股份有限公司 | A kind of analog-digital converter and automobile |
| CN207074235U (en) * | 2017-05-26 | 2018-03-06 | 吉林大学 | A kind of long period seismic electrical signal acquisition system |
| CN207833005U (en) * | 2018-01-22 | 2018-09-07 | 深圳市锐能微科技有限公司 | The detection circuit and electric energy meter of circuit transfer function variation |
| CN108957119A (en) * | 2018-09-19 | 2018-12-07 | 钜泉光电科技(上海)股份有限公司 | Biradical quasi- mutually inspection electrical parameter detection circuit and the electric energy computation chip of sample circuit |
| CN109188074A (en) * | 2018-10-11 | 2019-01-11 | 钜泉光电科技(上海)股份有限公司 | A kind of biradical standard is mutual to examine circuit, method and electric energy computation chip |
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