Anti-electromagnetic interference method, anti-electromagnetic interference circuit and anti-electromagnetic interference system for a computer mainboard
An anti-electromagnetic interference, computer motherboard technology, applied in the reduction of crosstalk/noise/electromagnetic interference (, printed circuit, printed circuit, etc., can solve problems that easily affect the normal operation of the computer and weak anti-electromagnetic interference ability
Pending Publication Date: 2020-12-15
SHENZHEN ITZR TECH
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the present invention is to provide a computer motherboard anti-electromagnetic interference method, circuit and system, aiming to solve the problem that the existing computer motherboard has weak anti-electromagnetic interference ability and easily affects the normal operation of the computer in a harsh electromagnetic environment
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0031] see figure 1 , the present invention provides a kind of anti-electromagnetic interference method of computer motherboard, comprising:
[0032] S101 put the motherboard into the working environment;
[0033] Different working environments will produce different forms of electromagnetic interference, making it necessary to place the motherboard in a specific working environment for more accurate and real testing.
[0034] S102 detects the magnetic field strength to obtain the weakest magnetic field area;
[0035] see fi...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an anti-electromagnetic interference method, an anti-electromagnetic interference circuit and an anti-electromagnetic interference system for a computer mainboard. The anti-electromagnetic interference method comprises the following steps: placing the mainboard in a working environment; detecting the magnetic field intensity to obtain the weakest magnetic field area; adjusting the position of the mainboard to the weakest magnetic field area and grounding; additionally arranging an electromagnetic shielding cover; Electromagnetic noise of an interference source is canceled. According to the anti-electromagnetic interference method, the anti-electromagnetic interference circuit and the anti-electromagnetic interference system for the computer mainboard, different external interference sources are adopted for interference, so that the mainboard is finally placed in the weakest electromagnetic area to reduce the influence generated by external electromagnetic interference; a first shielding layer and a second shielding layer are additionally arranged on the mainboard to reduce external electromagnetic interference as much as possible; and targeted interference frequency point calculation is carried out on each main interference source on the mainboard, and diodes are connected in series and bias voltage is applied to eliminate the electromagnetic interference, so that the anti-interference capability of the mainboard can be greatly enhanced, and the mainboard can normally work in a severe electromagnetic environment.
Description
technical field [0001] The invention relates to the technical field of electromagnetic interference, in particular to a computer motherboard anti-electromagnetic interference method, circuit and system thereof. Background technique [0002] Electromagnetic Interference (EMI) is electronic noise that interferes with cable signals and degrades signal integrity. EMI is usually generated by sources of electromagnetic radiation such as motors and machines. [0003] Existing computer motherboards usually only have general anti-electromagnetic interference capabilities, and only pass the EMI requirements stipulated by international regulations. In the case of strong external electromagnetic interference, it is difficult to meet the requirements for use, making it difficult for the computer to work normally. Contents of the invention [0004] The object of the present invention is to provide a computer motherboard anti-electromagnetic interference method, circuit and system thereo...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H05K9/00H05K1/02
CPCH05K1/0215H05K1/0216H05K1/0233H05K9/003H05K2201/10H05K2201/10174
Inventor 徐茜徐朝阳
Owner SHENZHEN ITZR TECH