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Electromagnetic interference (EMI) is correlated with mode conversion, from differential-mode signals to common-mode currents and further to antenna-mode currents on the outside of cables or enclosures. This paper presents methods to quantify the mode conversion caused by discontinuities in the digital visual interface (DVI) signal link. These discontinuities are mostly present in the DVI connector,...
Fast switching of PWM-inverters cause a lot of electromagnetic interference (EMI). To lower the dv/dt, output filters are available. In this paper, the influence of the cable and the output filters on conducted emission is investigated. By combining impedance measurements and EMI-measurements particular dips in the spectrum can be explained.
The use of high frequency switching power devices in adjustable speed drives (ASDs) induces high voltage variations (dv/dt) that excite the parasitic elements of the power circuit, leading to conducted emissions at high frequencies. The advent of these devices has thus generated several unexpected problems, such as premature deterioration of motor ball bearings and high increases in the electromagnetic...
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