CN208383968U - A kind of current metering sensor based on voltage principle - Google Patents
A kind of current metering sensor based on voltage principle Download PDFInfo
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- CN208383968U CN208383968U CN201821172072.4U CN201821172072U CN208383968U CN 208383968 U CN208383968 U CN 208383968U CN 201821172072 U CN201821172072 U CN 201821172072U CN 208383968 U CN208383968 U CN 208383968U
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Abstract
The utility model discloses a kind of current metering sensors based on voltage principle, including being measured circuit access point, division module, voltage amplification module, computer circuits module, RS232 serial ports, external circuit, it is measured diode, main process task chip, the front side of the measuring circuit access point is accessed in series division module, the front side of division module is accessed in parallel voltage amplification module, the front side of voltage amplification module is accessed in parallel computer circuits module, the side of computer circuits module is provided with RS serial ports, one end of the measuring circuit access point is connected with measured diode, measured diode is set to the inside of external circuit, a kind of current metering sensor based on voltage principle of the utility model, it is easy to use, circuit processing part is passed through advanced Encapsulation technology it is highly integrated.Current measurement under which has small in size, and precision is high, and small advantage is influenced by environmental change factor.
Description
Technical field
The utility model relates to technical field of electronic products, specially a kind of current measurement based on voltage principle is passed
Sensor.
Background technique
In the modern times of automation, intelligent high development, various electronic equipments are used all trades and professions, in electronic equipment
In circuit design, it is often necessary to the electric current of certain branch in measuring circuit.With being constantly progressive for chip encapsulation technology, circuit integration
Spend higher and higher, currently used current measurement mode has Hall-type, induction (CT), but the usual volume of such sensor
Larger, measurement error is larger by such environmental effects such as temperature changes.
Summary of the invention
The purpose of this utility model is to provide a kind of current metering sensors based on voltage principle, have use
It is convenient, circuit processing part is highly integrated by advanced packaging.Current measurement under which has small in size, essence
Degree is high, and small feature is influenced by environmental change factor, solves the problems of the prior art.
To achieve the above object, the utility model provides the following technical solutions: a kind of electric current based on voltage principle
Measurement sensor, including it is measuring circuit access point, division module, voltage amplification module, computer circuits module, RS serial ports, outer
Portion's circuit is measured diode and main process task chip, and the front side of the measuring circuit access point is accessed in series to be had point
Die block, the front side of division module is accessed in parallel voltage amplification module, and the front side of voltage amplification module is with parallel connection
Mode accessed computer circuits module, the side of computer circuits module is provided with RS serial ports, the measuring circuit access
One end of point is connected with measured diode, and measured diode is set to the inside of external circuit, the RS serial ports it is another
End is connected with main process task chip.
Preferably, the division module, voltage amplification module and computer circuits module are integrated on one piece of circuit board,
It is connected in a wired fashion on circuit board.
Preferably, the resistance in the division module is 0 to 100 milliohm.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, a kind of current metering sensor based on voltage principle of the utility model, the front side of measuring circuit access point
Access has division module in series, and division module resistance value is minimum, is designed as several milliohms between tens milliohms, divides
The front side of die block is accessed in parallel voltage amplification module, and the front side of voltage amplification module is accessed in parallel
There is computer circuits module, division module, voltage amplification module and computer circuits module are integrated on one piece of circuit board, in electricity
It is connected in a wired fashion on the plate of road, by the way that it is minimum to access a resistance value in series to the circuit for needing to measure electric current
Divider resistance divides circuit, by measuring the resistance two sides voltage, calculates the current value for flowing through the circuit, divides
Block coupled in series is in application scenarios, and resistance value is minimum in the module design, can be equivalent to access, voltage amplification module is to one liang of component
The voltage at end amplifies, and in order to be acquired at three kinds of component, counting circuit module is amplified to voltage amplification module
Voltage is acquired, and is fitted, and is calculated, and after the processing such as loss balancing, finally after calculating, analog signal is specially become to digital letter
Number, it is exported by RS serial ports, it is easy to use.
2, a kind of current metering sensor based on voltage principle of the utility model, one end of measuring circuit access point
It is connected with measured diode, measured diode is set to the inside of external circuit, and the other end of the RS serial ports is connected with
Main process task chip needs to measure the electric current that measured diode is flowed through in upper figure in external circuit, it is only necessary to beat the branch
It opens, division module, voltage amplification module and computer circuits module is serially connected in the branch by measuring circuit access point, count
It calculates login module and can directly export from RS serial ports and flow through the current value of the branch to main process task chip, circuit processing part leads to
Cross that advanced packaging is highly integrated, the current measurement under which has small in size, and precision is high, by environmental change factor shadow
Ring the advantages that small.
Detailed description of the invention
Fig. 1 is the component composition schematic diagram of the utility model；
Fig. 2 is schematic diagram of the utility model in application environment.
In figure: 1, measuring circuit access point；2, division module；3, voltage amplification module；4, computer circuits module；5,
RS232 serial ports；6, external circuit；7, it is measured diode；8, main process task chip.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
A kind of current metering sensor based on voltage principle referring to FIG. 1-2, including measuring circuit access point 1,
Division module 2, computer circuits module 4, RS232 serial ports 5, external circuit 6, is measured diode 7, is main voltage amplification module 3
Chip 8 is handled, the front side of measuring circuit access point 1 is accessed in series division module 2, and 2 resistance value of division module is minimum,
Resistance inside its division module 2 is 0 to 100 milliohm, is designed specifically to several milliohms between tens milliohms, divides
The front side of module 2 is accessed in parallel voltage amplification module 3, and the front side of voltage amplification module 3 connects in parallel
Enter to have computer circuits module 4, division module 2, voltage amplification module 3 and computer circuits module 4 are integrated in one piece of circuit board
On, it is connected in a wired fashion on circuit boards, by accessing a resistance value in series to the circuit for needing to measure electric current
Minimum divider resistance, divides circuit, by measuring the resistance two sides voltage, calculates the electric current for flowing through the circuit
Value, division module 2 are connected in application scenarios, and resistance value is minimum in the module design, can be equivalent to access, voltage amplification module 3
The voltage at one both ends of component is amplified, in order to be acquired at three kinds of component, computer circuits module 4 is to voltage amplification
The amplified voltage of module 3 is acquired, and is fitted, and is calculated, and after the processing such as loss balancing, finally after calculating, simulation is believed
Number specially become digital signal, is exported by RS232 serial ports 5, it is easy to use；The side of computer circuits module 4 is provided with
RS232 serial ports 5, one end of measuring circuit access point 1 are connected with measured diode 7, are measured diode 7 and are set to external electrical
The inside on road 6, the other end of RS232 serial ports 5 are connected with main process task chip 8 in external circuit 6, need to measure and flow through in upper figure
Be measured the electric current of diode 7, it is only necessary to the branch be opened, division module 2, voltage is put by measuring circuit access point 1
Big module 3 and computer circuits module 4 are serially connected in the branch, and computer circuits module 4 can be directly defeated from RS232 serial ports 5
The current value of the branch is flowed through out to main process task chip 8, and circuit processing part is highly integrated by advanced packaging, the party
Current measurement under formula has small in size, and precision is high, is influenced the advantages that small by environmental change factor.
In summary: a kind of current metering sensor based on voltage principle of the utility model, measuring circuit access
The front side of point 1 is accessed in series division module 2, and 2 resistance value of division module is minimum, is designed as several milliohms to tens
Between milliohm, the front side of division module 2 is accessed in parallel voltage amplification module 3, the front side of voltage amplification module 3 with
Mode in parallel has accessed computer circuits module 4, and division module 2, voltage amplification module 3 and computer circuits module 4 are integrated
It on one piece of circuit board, is connected in a wired fashion on circuit boards, by the circuit for needing to measure electric current, in series
The minimum divider resistance of resistance value is accessed, circuit is divided, by measuring the resistance two sides voltage, calculates and flows through this
The current value of circuit, division module 2 are connected in application scenarios, and resistance value is minimum in the module design, can be equivalent to access, voltage
Amplification module 3 amplifies the voltage at one both ends of component, in order to be acquired at three kinds of component, computer circuits module 4
The amplified voltage of voltage amplification module 3 is acquired, is fitted, is calculated, after the processing such as loss balancing, finally by calculating
Afterwards, analog signal is specially become into digital signal, is exported by RS232 serial ports 5, it is easy to use；Measuring circuit access point 1
One end is connected with measured diode 7, is measured the inside that diode 7 is set to external circuit 6, the other end of RS232 serial ports 5
Main process task chip 8 is connected in external circuit 6, needs to measure the electric current for flowing through measured diode 7 in upper figure, it is only necessary to will
The branch is opened, and is concatenated division module 2, voltage amplification module 3 and computer circuits module 4 by measuring circuit access point 1
In the branch, computer circuits module 4 can flow through the current value of the branch to main process task from the directly output of RS232 serial ports 5
Chip 8, circuit processing part is highly integrated by advanced packaging, and the current measurement under which has small in size, essence
Degree is high, is influenced the advantages that small by environmental change factor.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (3)
1. a kind of current metering sensor based on voltage principle, including measuring circuit access point (1), division module (2),
Voltage amplification module (3), computer circuits module (4), RS232 serial ports (5), external circuit (6), be measured diode (7) and
Main process task chip (8), it is characterised in that: the front side of the measuring circuit access point (1) is accessed in series partial pressure mould
Block (2), the front side of division module (2) is accessed in parallel to be had voltage amplification module (3), before voltage amplification module (3)
Side is accessed in parallel to be had computer circuits module (4), and the side of computer circuits module (4) is provided with RS232 serial ports
(5), one end of the measuring circuit access point (1) is connected with measured diode (7), and measured diode (7) are set to outer
The other end of the inside of portion's circuit (6), the RS232 serial ports (5) is connected with main process task chip (8).
2. a kind of current metering sensor based on voltage principle according to claim 1, it is characterised in that: described
Division module (2), voltage amplification module (3) and computer circuits module (4) are integrated on one piece of circuit board, on circuit boards with
Wired mode connection.
3. a kind of current metering sensor based on voltage principle according to claim 1, it is characterised in that: described
Resistance in division module (2) is 0 to 100 milliohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172072.4U CN208383968U (en) | 2018-07-23 | 2018-07-23 | A kind of current metering sensor based on voltage principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172072.4U CN208383968U (en) | 2018-07-23 | 2018-07-23 | A kind of current metering sensor based on voltage principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208383968U true CN208383968U (en) | 2019-01-15 |
Family
ID=64961220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821172072.4U Expired - Fee Related CN208383968U (en) | 2018-07-23 | 2018-07-23 | A kind of current metering sensor based on voltage principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208383968U (en) |
-
2018
- 2018-07-23 CN CN201821172072.4U patent/CN208383968U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190115 Termination date: 20200723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |