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Electromagnetic interference prediction method and system

A technology of electromagnetic interference and prediction method, applied in the fields of electromagnetic field characteristics, measuring electricity, measuring devices, etc., can solve problems such as the influence of simulation results and the inability of EMI simulation of complex circuit electronic equipment to correspond

Active Publication Date: 2019-05-31
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The parameters of various excitations, materials, loads, and devices require accurate input, and factors such as the environment and power supply quality during the actual operation of electronic equipment will also affect the simulation results, resulting in the EMI simulation of electronic equipment with complex circuits usually not corresponding to the measured results

Method used

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  • Electromagnetic interference prediction method and system
  • Electromagnetic interference prediction method and system
  • Electromagnetic interference prediction method and system

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Embodiment Construction

[0095] In order for those skilled in the art to better understand the technical solution of the present disclosure, the electromagnetic interference prediction method and system provided by the present disclosure will be described in detail below with reference to the accompanying drawings.

[0096] Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, but may be embodied in 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, and will fully convey the scope of the disclosure to those skilled in the art.

[0097] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0098] The terminology used herein is for describing particular embodiments only and is not intended to limit the present disclosure. As used herein, the singular forms ...

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Abstract

The present invention provides an electromagnetic interference prediction method. The method includes the following steps that: a first error calibration factor corresponding to a first preset frequency range is obtained based on a preset calibration system; first common-mode current within the first preset frequency range corresponding a device to be detected is obtained according to a preset test system; and first common-mode current strength within the first preset frequency range corresponding the device to be detected is generated on the basis of a preset first common-mode radiation modeland according to the first error calibration factor and the first common-mode current. The present invention also provides an electromagnetic interference prediction system.

Description

technical field [0001] The embodiments of the present disclosure relate to the technical field of hardware testing, and in particular to a method and system for predicting electromagnetic interference. Background technique [0002] Electromagnetic interference (EMI) generally refers to any electromagnetic phenomenon that may cause performance degradation or even failure of electronic devices, equipment or systems, or cause damage to living or non-living substances. Almost every kind of electronic equipment will produce different degrees of electromagnetic interference signal, which is an unwanted electromagnetic signal. This signal may be radiated in the form of electromagnetic radiation, or it may be transmitted through current-carrying conductors (such as power lines, cables, etc.). [0003] Each country has restrictions on the electromagnetic interference of electronic equipment in various industries, and to verify whether the electronic equipment meets the standard requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/08G01R31/00
Inventor 邹明
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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