Performance optimization aspects of common mode chokes

Roc'h, Anne; Bergsma, Hans; Zhao, Dongsheng; Ferreira, Braham; Leferink, Frank

doi:10.1109/apemc.2008.4559906

Cited by 5 publications

(1 citation statement)

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“…The structure is a set of Cx (between lines) and Cy capacitors to a ground, line inductors and common mode inductors. The parasitic effects of the components, caused by dielectric, shape of component, or leads, is decreased by selecting the proper components with low ESR (equivalent series resistance) and ESL (equivalent series inductance) for capacitors, and ESR and parasitic capacitance for the inductors [3]. Current research is focused on estimating and decreasing mutual parasitic effects between components [4], [5], [6].…”

Section: Introduction Imentioning

confidence: 99%

Unexpected poor performance of presumed high-quality power line filter, and how it improved

Moonen

Buesink

Leferink

2015

2015 IEEE International Symposium on Electromagnetic Compatibility (EMC)

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A 20 A, 440 V three p hase power line filter for a radar transmitter, designed using the best components available and following the correct rules for filter design, showed unexpected poor common mode attenuation levels at frequencies above, already, a few megahertz. Component self-parasitic, as well as mutual component parasitic effects were not the main cause of the poor performance. A redesign using additional capacitors at the input, as well as improving the ground plane, resulted in improvement, but the dominant cause appeared to be the impedance between the ground plane and the reference plane.

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