Method for inhibiting radiated emission of magnetic isolation communication equipment in power system
A communication equipment, radiation emission technology, applied in the direction of printed circuits, electrical components, printed circuit components connected with non-printed electrical components, etc., can solve the problems of no practical application value, not very significant effect, increased cost, etc. , to achieve the effect of easy implementation, low cost and reduced radiation emission
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[0035] The present invention will be further described in detail below in conjunction with the drawings.
[0036] A method for suppressing radiation emission of a magnetically isolated communication device in a power system is provided. The method includes the following steps:
[0037] Step 1: Divide the radiation emission in the magnetically isolated communication equipment into dipole radiation from input to output and edge radiation;
[0038] Step 2: Use board-level embedded stitching capacitor method to suppress dipole radiation from input to output;
[0039] Step 3: Adopt the via hole guardrail edge protection method to suppress edge radiation.
[0040] In the step 1, when the driving current source passes through the gap between the ground layers, the input to the output dipole radiation is generated. In a magnetically isolated power system, the high-frequency image charge associated with the power signal cannot cross the boundary, resulting in a differential signal on the gap, w...
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