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A shunt, the other side of the technology, applied in the direction of instruments, voltage/current isolation, measurement devices, etc., can solve the problem of shunt not working properly, to weaken the effect and improve the sampling accuracy

Active Publication Date: 2008-04-23
SHENZHEN KAIFA TECH (CHENGDU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an improved shunt for the defect that the traditional shunt in the prior art cannot work normally in an environment with an alternating magnetic field

Method used

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Embodiment Construction

[0034] The shunt introduced in the present invention includes a sampling resistor and four sampling lines welded thereon, wherein the four sampling lines are located at both ends and both sides of the sampling resistor two by two, and are short-circuited by two sampling lines welded on the same end Finally, the output terminal for measurement is formed, and the area enclosed by the two sampling lines welded on one side and the sampling resistor is equal to the area enclosed by the two sampling lines welded on the other side and the sampling resistor. The technical solutions of the present invention are described below in conjunction with the accompanying drawings.

[0035] figure 2 It is a structural schematic diagram of the shunt of the present invention. Such as figure 2 As shown, the shunt includes a sampling resistor 7 , a first sampling line 1 , a second sampling line 2 , a third sampling line 3 and a fourth sampling line 4 . Among the above components, the sampling ...

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Abstract

The invention comprises a sampling resistor and four sampling lines soldered on said resistor; four sampling lines are respectively located at both ends and both sides of the sampling resistor; two sampling lines soldered at same end are connected in short circuit to construct an output end used for measurement; two sampling lines at same side combines with the sampling resistor to form an area which is equal to the area formed by the two line at other side of the resistor. The invention is used for removing the magnetic field influence and promoting sampling accuracy.

Description

technical field [0001] This invention relates to electrical measuring components and, more particularly, to a current shunt. Background technique [0002] Shunts are widely used to expand the range of measuring current of instruments, and can be used for current limiting and current sampling detection of communication systems, electronic complete machines, automatic control power supplies and other circuits. The main part of the shunt is a small-value resistor, on which a sampling terminal is arranged, and the measurement accuracy of the shunt can be controlled by adjusting the position of the sampling terminal. [0003] figure 1 It is a structural schematic diagram of a conventional shunt in the prior art. Such as figure 1 As shown, the shunt is welded with current sampling lines 14 and 15 on the sampling resistor 16 . Traditional shunts usually use two current sampling lines to sample the current flowing through the sampling resistor, and there are no special requireme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R15/00G01R15/14
Inventor 王春国王毅
Owner SHENZHEN KAIFA TECH (CHENGDU) CO LTD