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String detection circuit and judgment method thereof

A line detection and circuit technology, applied in the field of cross-line detection electrodes and their judgment, can solve the problem of inability to judge the wrong connection of channels, and achieve the effect of less components and less cost

Pending Publication Date: 2020-05-12
SHENZHEN SINEXCEL ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the industry mainly judges whether the polarity of the voltage line or power line is reversed by detecting the voltage polarity of the sampling line and the power line. In the case of multi-channel output and the connected battery voltage is the same, the channel cannot be judged. Incorrect connection between the battery, such as the positive sampling line, the power line is connected to the first set of batteries, the negative and positive sampling line, the power line is connected to the second set of batteries

Method used

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  • String detection circuit and judgment method thereof
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  • String detection circuit and judgment method thereof

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Embodiment Construction

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

[0021] In order to make the drawing concise, each drawing only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked. Herein, "a" not only means "only one", but also means "more than one".

[0022] The techni...

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Abstract

The invention provides a string detection circuit and a detection method thereof. The string detection circuit comprises a first sampling circuit, a second sampling circuit and a third sampling circuit which are connected with a positive electrode and a negative electrode of a power supply, the first sampling circuit, the second sampling circuit and the third sampling circuit are arranged in parallel; the voltage of a power line and the voltage of a voltage line are sampled in a crossed mode, so that whether the voltage line and the power line are connected or not is judged, the number of added devices can be minimized, and correspondingly, the added cost is low.

Description

technical field [0001] The invention belongs to the technical field of circuit detection, and in particular relates to a cross-wire detection electrode and a judging method thereof. Background technique [0002] At present, the industry mainly judges whether the polarity of the voltage line or power line is reversed by detecting the voltage polarity of the sampling line and the power line. In the case of multi-channel output and the connected battery voltage is the same, the channel cannot be judged. For example, the positive sampling line and power line are connected to the first set of batteries, and the negative and positive sampling lines and power lines are connected to the second set of batteries. [0003] The prior art adopts a four-wire connection method in order to avoid voltage drop on the power line. Such as figure 1 As shown, it includes a first voltage line 10 and a first power line 30 connected to the positive pole of the battery 100, a second voltage line 20...

Claims

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Application Information

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IPC IPC(8): G01R31/67G01R31/72
Inventor 余作霸
Owner SHENZHEN SINEXCEL ELECTRIC