Effect of Current Imbalance on the EMI Behaviour of Differential Signalling

conference paper

English

An investigation of common mode radiation from differentially routed high-speed signal traces on printed circuit boards is presented. The influence of current imbalance on the resulting common-mode noise level is investigated, based on an inductive coupling model. It is shown that small current imbalances always present in practical designs, can almost destroy the ideal high common-mode noise attenuation of differential signalling.

Current imbalance, Common-mode signal, Electromagnetic Compatibility

NAVRÁTIL, V.

2003

15. 4. 2003

VUT FEEC Brno

Brno

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Procee

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