Grounding of heatpipe/heatspreader and heatsink structures for EMI mitigation

Wang, C.; Drewniak, James L.; Knighten, J.L.; Wang, D.; Alexander, R.; Hockanson, D.M.

doi:10.1109/isemc.2001.950507

Cited by 10 publications

(2 citation statements)

References 8 publications

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“…11 is the measured CM inductance on a Agilent 4294A precision impedance analyzer. It can be seen that the measured CM inductance is about 189 µH which is quite close to the required value of inductance calculated in (12).…”

Section: Determination and Implementation Of CM Inductorsupporting

confidence: 81%

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Common mode noise modeling and its suppression in ultra-high efficiency full bridge boost converter

Makda

Nymand

Madawala

2013

IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society

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In this paper, common mode noise modeling of lowvoltage high-current isolated full bridge boost dc-dc converters intended for fuel cell application is presented. Due to the tightly coupled primary and secondary windings of the transformer, such converter has inherently large capacitive coupling between input and output which is normally associated with high common mode noise generation. In this work, common mode noise sources in the converter are identified, and a common mode noise model is developed. Based on the established noise model, a practical CM filter is designed to comply with the CISPR-A requirements. Finally, a 3kW dc-dc converter including filters has been built and tested to verify the theoretical model. Experimental results confirm the theoretical analysis of the converter.Keywords-Electromagnetic Interference; common mode noise; dc-dc converter, modeling, transformer and heat sink parasitic capacitances I.978-1-4799-0224-8/13/$31.00 ©2013 IEEE

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Section: Determination and Implementation Of CM Inductorsupporting

confidence: 81%

“…Attention has been focused on another CM noise source, i.e. the parasitic capacitance between heat sink and the ground/chassis of the power converter [1,12]. To mitigate this CM noise source, heat sinks are connected to power supply return instead of ground.…”

Section: Introductionmentioning

confidence: 99%