CN208140795U - A kind of high-speed, high precision four-way high-voltage measuring circuit - Google Patents
A kind of high-speed, high precision four-way high-voltage measuring circuit Download PDFInfo
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- CN208140795U CN208140795U CN201820783267.6U CN201820783267U CN208140795U CN 208140795 U CN208140795 U CN 208140795U CN 201820783267 U CN201820783267 U CN 201820783267U CN 208140795 U CN208140795 U CN 208140795U
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- 238000005259 measurement Methods 0.000 claims abstract description 34
- 239000003990 capacitor Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 6
- 238000005070 sampling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a kind of high-speed, high precision four-way high-voltage measuring circuits, including voltage collection circuit, electronic switching circuit and electric energy measurement circuit；The external 380V AC signal binding post of voltage collection circuit input terminal, voltage collection circuit includes first voltage Acquisition Circuit, second voltage Acquisition Circuit, tertiary voltage Acquisition Circuit and the 4th voltage collection circuit, the first voltage Acquisition Circuit output end, second voltage Acquisition Circuit output end and tertiary voltage Acquisition Circuit output end are connected with electronic switching circuit input terminal, and the 4th voltage collection circuit output end is connected with the voltage measurement port of electric energy measurement circuit；The electronic switching circuit output end is connected with the current measurement port of electric energy measurement circuit；The electronic switching circuit control terminal and the external MCU in electric energy measurement circuit control end.The utility model is easy to use, at low cost, and speed is fast, and it is high to return middle precision.
Description
Technical field
The utility model relates to High-Voltage Measurement Technology field, specially a kind of high-speed, high precision four-way high-tension measurement electricity
Road.
Background technique
Signal sampling speed is faster in pressure stabilizing cabinet time, then it is higher to return middle control efficiency, and controls system in pressure stabilizing cabinet time now
System is typically all exchange transformation direct current to be realized by the way of diode rectification, or directly turn the dedicated core of direct current using exchange
Piece realizes back the sampling of middle signal, both systems can realize that sample rate is greater than the sampling rate of 50hz, but use
The mode of diode rectification causes entire measuring range in measurement maxima and minima because of the nonlinear problem of diode
Between error it is excessive.And exchange and turn that direct current chip price is expensive, there is very big difficulty in popularization.And the technology of this patent exists
Fundamentally solves problem above, it is single-phase double power electric energy chips that this patent, which uses this chips of CS5460, is being measured
It is that there is no problem on AC signal, it is important to which the maximum data output rate maximum of this chip can reach 2.4KHZ.So big
It is easily achieved in the sampling rate of 50HZ, in addition this chip energy data linearity：1000：The linearity in 1 dynamic range
It is 0.1%, so measurement accuracy is completely up to standard.In addition, by 74LS4052 be four select an analog switch, it can be achieved that four tunnels high speed
Measurement.
Summary of the invention
The purpose of this utility model is to provide a kind of high-speed, high precision four-way high-voltage measuring circuit, at low cost, speed
Fastly, precision is high in returning.
To achieve the above object, the utility model provides the following technical solutions：A kind of high-speed, high precision four-way high pressure survey
Amount circuit, including voltage collection circuit, electronic switching circuit and electric energy measurement circuit, the voltage collection circuit input terminal are external
380V AC signal binding post, voltage collection circuit include first voltage Acquisition Circuit, second voltage Acquisition Circuit, tertiary voltage
Acquisition Circuit and the 4th voltage collection circuit, the first voltage Acquisition Circuit output end, second voltage Acquisition Circuit output end
It is connected with electronic switching circuit input terminal with tertiary voltage Acquisition Circuit output end, the 4th voltage collection circuit output end
It is connected with the voltage measurement port of electric energy measurement circuit；The electric current of the electronic switching circuit output end and electric energy measurement circuit is surveyed
Port is measured to be connected；The electronic switching circuit control terminal and the external MCU in electric energy measurement circuit control end.
Preferably, the first voltage Acquisition Circuit, second voltage Acquisition Circuit, tertiary voltage Acquisition Circuit and the 4th electricity
Press the circuit structure of Acquisition Circuit identical；The first voltage Acquisition Circuit include first resistor, second resistance, 3rd resistor,
4th resistance, the 5th resistance, the 6th resistance, the second capacitor, third capacitor and first voltage mutual inductor；The first voltage mutual inductance
The first pin of device passes through the external 380V exchange of the 5th resistance by the external 380V AC signal binding post of first resistor, second pin
Signal binding post, third pin are grounded by 3rd resistor, and the 4th pin passes through the 4th resistance eutral grounding；Described second resistance one end
It is connected with first voltage mutual inductor third pin, the other end passes through the second capacity earth；Described 6th resistance one end and the first electricity
The 4th pin of mutual inductor is pressed to be connected, the other end passes through third capacity earth.
Preferably, the electronic switching circuit uses 74LS4052 chip.
Preferably, the electric energy measurement circuit uses CS5460BS chip.
Compared with prior art, the beneficial effects of the utility model are as follows：Easy to use, at low cost, speed is fast, Hui Zhongjing
Degree is high, it can be achieved that four-way high speed measures.
Detailed description of the invention
Fig. 1 is the block diagram of the utility model；
Fig. 2 is the utility model first voltage Acquisition Circuit circuit diagram；
Fig. 3 is the total circuit diagram of the utility model.
In figure：100, voltage collection circuit, 200, electronic switching circuit, 300, electric energy measurement circuit, R1, first resistor,
R2, second resistance, R3,3rd resistor, R4, the 4th resistance, R5, the 5th resistance, R6, the 6th resistance, C2, the second capacitor, C3,
Three capacitors, L1, first voltage mutual inductor.
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.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution：A kind of high-speed, high precision four-way high-tension measurement electricity
Road, including voltage collection circuit 100, electronic switching circuit 200 and electric energy measurement circuit 300, the voltage collection circuit 100 are defeated
Enter to hold external 380V AC signal binding post, voltage collection circuit 200 includes first voltage Acquisition Circuit, second voltage acquisition electricity
Road, tertiary voltage Acquisition Circuit and the 4th voltage collection circuit；The electronic switching circuit uses 74LS4052 chip, described
Electric energy measurement circuit uses CS5460BS chip；15th pin of CS5460BS chip and the 16th pin form electric energy measurement circuit
Current measurement port, the 9th pin of CS5460BS chip and the 9th pin composition electric energy measurement circuit voltage measurement port.
The first voltage Acquisition Circuit output end, second voltage Acquisition Circuit output end and tertiary voltage Acquisition Circuit output end with
200 input terminal of electronic switching circuit is connected, and the voltage of the 4th voltage collection circuit output end and electric energy measurement circuit 300 is surveyed
Port is measured to be connected；200 output end of electronic switching circuit is connected with the current measurement port of electric energy measurement circuit 300；It is described
200 control terminal of electronic switching circuit and the external MCU of 300 control terminal of electric energy measurement circuit.
The first voltage Acquisition Circuit, second voltage Acquisition Circuit, tertiary voltage Acquisition Circuit and the 4th voltage acquisition
The circuit structure of circuit is identical, here, introducing its circuit structure by taking first voltage Acquisition Circuit as an example, the first voltage is adopted
Collector include first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R5,
Second capacitor C2, third capacitor C3 and first voltage mutual inductor L1；The first pin of the first voltage mutual inductor L1 passes through first
The external 380V AC signal binding post of resistance R1, second pin pass through the external 380V AC signal binding post of the 5th resistance R5, the
Three pins are grounded by 3rd resistor R3, and the 4th pin is grounded by the 4th resistance R4；One end the second resistance R2 and first
Voltage transformer L1 third pin is connected, and the other end is grounded by the second capacitor R2；Described 6th one end resistance R6 and the first electricity
The 4th pin of mutual inductor L1 is pressed to be connected, the other end is grounded by third capacitor C3.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, by sentence " element limited including one ..., it is not excluded that
There is also other identical elements in process, method, article or equipment including the element ".
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 (4)
1. a kind of high-speed, high precision four-way high-voltage measuring circuit, including voltage collection circuit, electronic switching circuit and electric energy are surveyed
Measure circuit, it is characterised in that：The external 380V AC signal binding post of voltage collection circuit input terminal, voltage collection circuit packet
Include first voltage Acquisition Circuit, second voltage Acquisition Circuit, tertiary voltage Acquisition Circuit and the 4th voltage collection circuit, described
One voltage collection circuit output end, second voltage Acquisition Circuit output end and tertiary voltage Acquisition Circuit output end are and electronic cutting
It closes circuit input end to be connected, the 4th voltage collection circuit output end is connected with the voltage measurement port of electric energy measurement circuit；
The electronic switching circuit output end is connected with the current measurement port of electric energy measurement circuit；The electronic switching circuit control terminal
With the external MCU in electric energy measurement circuit control end.
2. a kind of high-speed, high precision four-way high-voltage measuring circuit according to claim 1, it is characterised in that：Described first
Voltage collection circuit, second voltage Acquisition Circuit, the circuit structure phase of tertiary voltage Acquisition Circuit and the 4th voltage collection circuit
Together；
The first voltage Acquisition Circuit includes first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th
Resistance, the second capacitor, third capacitor and first voltage mutual inductor；First pin of first voltage mutual inductor passes through first resistor
External 380V AC signal binding post, for second pin by the external 380V AC signal binding post of the 5th resistance, third pin is logical
3rd resistor ground connection is crossed, the 4th pin passes through the 4th resistance eutral grounding；Described second resistance one end and first voltage mutual inductor third
Pin is connected, and the other end passes through the second capacity earth；Described 6th resistance one end is connected with the 4th pin of first voltage mutual inductor,
The other end passes through third capacity earth.
3. a kind of high-speed, high precision four-way high-voltage measuring circuit according to claim 1, it is characterised in that：The electronics
Switching circuit uses 74LS4052 chip.
4. a kind of high-speed, high precision four-way high-voltage measuring circuit according to claim 1, it is characterised in that：The electric energy
Measuring circuit uses CS5460BS chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820783267.6U CN208140795U (en) | 2018-05-24 | 2018-05-24 | A kind of high-speed, high precision four-way high-voltage measuring circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820783267.6U CN208140795U (en) | 2018-05-24 | 2018-05-24 | A kind of high-speed, high precision four-way high-voltage measuring circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208140795U true CN208140795U (en) | 2018-11-23 |
Family
ID=64314416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820783267.6U Expired - Fee Related CN208140795U (en) | 2018-05-24 | 2018-05-24 | A kind of high-speed, high precision four-way high-voltage measuring circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208140795U (en) |
-
2018
- 2018-05-24 CN CN201820783267.6U patent/CN208140795U/en not_active Expired - Fee Related
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| 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: 20181123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |