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Circuit and method for detecting line short and/or interruption in differential

A technology of line short circuit and line interruption, which is applied in the direction of testing electrical devices in transportation, measuring electricity, short circuit testing, etc., and can solve problems such as wrong measurement signals

Pending Publication Date: 2022-05-06
INFINEON TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, for example, line short-circuits and / or line interruptions can lead to erroneous measuring signals, whose inexperienced further processing can in some cases have fatal consequences, especially in the case of safety-related systems

Method used

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  • Circuit and method for detecting line short and/or interruption in differential
  • Circuit and method for detecting line short and/or interruption in differential
  • Circuit and method for detecting line short and/or interruption in differential

Examples

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Embodiment Construction

[0073] Some examples will now be described in more detail with reference to the accompanying drawings. However, other possible examples are not limited to the features of the embodiments described in detail. These may have modifications of features as well as equivalents and substitutions of features. Furthermore, terminology used herein to describe certain examples is not intended to limit other possible examples.

[0074] Throughout the description of the drawings, the same or similar reference numerals denote the same or similar elements or features, which may be implemented identically or in modified forms while providing the same or similar functions. In the drawings, the thickness of lines, layers and / or regions may be exaggerated for clarity.

[0075] If "or" is used to combine two elements A and B, it is understood that all possible combinations are disclosed, ie only A, only B and A and B, unless expressly defined otherwise in individual cases. Alternatives for the...

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Abstract

Embodiments of the present disclosure relate to circuits and methods for detecting line shorts and / or line interruptions in a differentially operated line network. The present disclosure relates to a circuit (100) for detecting line short circuits and / or line interruptions in a differential operating line network (104-p, 104-n), comprising at least one adjustment circuit (110) which is designed to adjust at least one common mode signal of the differential operating line network (104-p, 104-n) to a predetermined common mode semaphore, when at least one control or regulation variable (112) of the regulation circuit (110) exceeds a predefined threshold value, a line short circuit and / or a line interruption in the differential operation line network is indicated.

Description

technical field [0001] The present disclosure relates to circuits and methods for detecting line shorts and / or line interruptions in differentially operated line networks, such as may be used in functionally safe functioning systems, such as in safety-related electrical / motor vehicles electronic system. Background technique [0002] Differentially operated line networks generally use symmetrical signal transmission in order to be able to transmit signals with the greatest possible interference tolerance. Instead of using only a single signal conductor, a pair of signal conductors of the same type, also referred to herein as signal cores, is used for transmission. In the case of symmetrical signal transmission, the actual useful signal is superimposed on the common-mode signal. A voltage signal in a common mode form may be referred to as a common mode voltage. In the case of current, it can be said to be common mode current. The common-mode signal for symmetrical signal t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/52G01R31/54G01R31/58
CPCG01R31/52G01R31/54G01R31/58G01D5/2046G01D5/2073G01D3/08G01R31/2829G01D5/20G01R31/006H02H1/0007
Inventor M·莫茨F·布鲁格C·H·加西亚·罗贾斯F·波洛T·沃斯
Owner INFINEON TECH AG
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