CN210051813U

CN210051813U - High-precision high-simplification current measuring sensor

Info

Publication number: CN210051813U
Application number: CN201920005806.8U
Authority: CN
Inventors: 范钱方
Original assignee: Shenzhen Sanyanke Electronic Technology Co ltd
Current assignee: Shenzhen Sanyanke Electronic Technology Co ltd
Priority date: 2019-01-03
Filing date: 2019-01-03
Publication date: 2020-02-11
Anticipated expiration: 2029-01-03

Abstract

The utility model discloses a high-precision high-simplification current measuring sensor, which comprises a resistor R1, a capacitor C1-C3, a connector J1-J2 and an integrated circuit U1; the utility model has simple circuit structure and can realize higher precision; the device can be used for measuring alternating current and direct current, and the maximum value of current measurement can reach 20A; the high-voltage isolation design is adopted, so that the use safety is improved; the output voltage corresponds to the measuring current linearly, and the interface is a Gravity 3P interface, so that the device is plug-and-play, convenient and practical.

Description

High-precision high-simplification current measuring sensor

Technical Field

The utility model relates to the current measurement technical field especially involves a high current measurement sensor of simplifying of high accuracy.

Background

The current measuring sensor is a detecting device which can sense the information of the current to be measured and convert the sensed information into an electric signal meeting certain standards or other required information output according to a certain rule so as to meet the requirements of information transmission, processing, storage, display, record, control and the like.

The current measuring sensor has a relatively bulky circuit structure and relatively low precision, so that the prior art has defects and needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high current measurement sensor that retrencies of high accuracy, the above-mentioned problem of solution.

In order to solve the above problem, the utility model provides a technical scheme as follows:

a high-precision high-simplicity current measurement sensor comprises a resistor R1, capacitors C1-C3, connectors J1-J2 and an integrated circuit U1; the 1 st pin of the connector J1 is respectively connected with the 1 st and 2 nd pins of the integrated circuit U1; the 2 nd pin of the connector J1 is connected with the 3 rd and 4 th pins of the integrated circuit U1 respectively; the 8 th pin of the integrated circuit U1 is respectively connected with the first ends of the capacitors C1-C2 and the 2 nd pin of the connector J2; the 7 th pin of the integrated circuit U1 is connected with the first end of the resistor R1; the second end of the resistor R1 is connected with the 1 st pin of the connector J2; the 6 th pin of the integrated circuit U1 is connected with the first end of the capacitor C3; the second terminals of the capacitors C1-C3, the 3 rd pin of the connector J2, and the 5 th pin of the integrated circuit U1 are all grounded.

In a preferred technical scheme, the integrated circuit U1 is of the type ACS712 ELCTR-20A-T.

In a preferred technical scheme, a 1 st pin of the connector J1 is an input end of the measured current; the 2 nd pin of the connector J1 is the output of the measured current.

In a preferred embodiment, the voltage of the 2 nd pin of the connector J2 is DC 5V.

Compared with the prior art, the utility model has the advantages that the circuit structure is simplified, and simultaneously, higher precision can be realized; the device can be used for measuring alternating current and direct current, and the maximum value of current measurement can reach 20A; the high-voltage isolation design is adopted, so that the use safety is improved; the output voltage corresponds to the measuring current linearly, and the interface is a Gravity 3P interface, so that the device is plug-and-play, convenient and practical.

Drawings

For a clearer explanation of the embodiments or technical solutions in the prior art, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is the utility model discloses a high current measurement sensor circuit schematic diagram of simplifying of high accuracy.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The use of the terms "fixed," "integrally formed," "left," "right," and the like in this specification is for illustrative purposes only, and elements having similar structures are designated by the same reference numerals in the figures.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1, an embodiment of the present invention is:

The integrated circuit U1 has a model number of ACS712 ELCTR-20A-T.

The 1 st pin of the connector J1 is the input end of the measured current; the 2 nd pin of the connector J1 is the output of the measured current.

The voltage of the 2 nd pin of the connector J2 is DC 5V.

The connector J2 is a Gravity 3P interface, is plug-and-play, and is convenient and practical.

It should be noted that the above technical features are continuously combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention described in the specification; moreover, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.

Claims

1. A high-precision high-simplification current measuring sensor is characterized by comprising a resistor R1, capacitors C1-C3, connectors J1-J2 and an integrated circuit U1; the 1 st pin of the connector J1 is respectively connected with the 1 st and 2 nd pins of the integrated circuit U1; the 2 nd pin of the connector J1 is connected with the 3 rd and 4 th pins of the integrated circuit U1 respectively; the 8 th pin of the integrated circuit U1 is respectively connected with the first ends of the capacitors C1-C2 and the 2 nd pin of the connector J2; the 7 th pin of the integrated circuit U1 is connected with the first end of the resistor R1; the second end of the resistor R1 is connected with the 1 st pin of the connector J2; the 6 th pin of the integrated circuit U1 is connected with the first end of the capacitor C3; the second terminals of the capacitors C1-C3, the 3 rd pin of the connector J2, and the 5 th pin of the integrated circuit U1 are all grounded.

2. A high accuracy high simplicity current measuring sensor according to claim 1 wherein said integrated circuit U1 is model ACS712 ELCTR-20A-T.

3. A high precision high thin current measuring sensor according to claim 1, wherein the 1 st pin of the connector J1 is the input terminal of the measured current; the 2 nd pin of the connector J1 is the output of the measured current.

4. The high precision high simplicity current measuring sensor according to claim 1, wherein the voltage of the 2 nd pin of the connector J2 is DC 5V.