Series-Connected Grounding of Common-Mode EMI Filter

Chen, Henglin; Meng, Peipei; Li, Jie; Qian, Zhaoming

doi:10.1109/temc.2010.2072510

Cited by 13 publications

(10 citation statements)

References 4 publications

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“…The performance of planar EMI filters can be compromised by equivalent parasitic capacitance (EPC) especially in highfrequency operation. In fact, it is the main parasitic parameter in EMI filters as reported in [14][15][16]. Even very small parasitic capacitors can lead to reducing the effective filtering frequency to a few hundred kilohertz [15].…”

Section: Equivalent Parasitic Capacitancementioning

confidence: 99%

“…During high-frequency operation, the performance of planar EMI filters is also limited by the equivalent series inductance (ESL). Although the ESL of the planar integrated filter is surely small [15]; it can reduce the effective filtering frequency to a few megahertz [15,16]. Solutions to these problems are discussed in [15] by two different ways which are reviewed in Section 6.…”

Section: Equivalent Series Inductancementioning

confidence: 99%

See 1 more Smart Citation

Multipath conductors for EMI filter: recent developments

Verma

Maity

Hofsajer³

2018

IET Science, Measurement & Technology

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Section: Equivalent Parasitic Capacitancementioning

confidence: 99%

Section: Equivalent Series Inductancementioning

confidence: 99%

Multipath conductors for EMI filter: recent developments

Verma

Maity

Hofsajer³

2018

IET Science, Measurement & Technology

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“…Advances in Power Electronics And, by (8), the impedance of common-mode inductance can be derived as follows:…”

Section: Emi Filter Designmentioning

confidence: 99%

“…Though there are lots of techniques, such as EMI filter and shielding, for mitigation of EMI, they work as a remedy after EMI is generated [7,8]. However, in comparison, chaotic PWM method suppresses the EMI at switching itself.…”

Section: Introductionmentioning

confidence: 99%

An FPGA Chaos-Based PWM Technique Combined with Simple Passive Filter for Effective EMI Spectral Peak Reduction in DC-DC Converter

Natarajan

Rajasekar

2014

Advances in Power Electronics

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A new and simple but effective electromagnetic interference suppression technique based on field programmable logic array (FPGA) technology to provide a significant EMI noise attenuation in DC-DC converters is discussed. The voltage controlled boost converter for EMI reduction is analyzed using FFT under traditional PWM technique and chaotic mode operation. This technique aids the DC-DC converters to comply in specified EMI limits and replace conventional bulky passive filter with a simple passive filter. A prototype model has been tested and hardware results show significant reduction of EMI in chaotic mode operation of the boost converter.

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“…Some electromagnetic compatibility experts rely on experience to design EMI filters. Other designers refer to the classical filter design methodology, which consists in determining the required attenuation of conducted emissions relative to a given EMI standard or system specification, and then computing the values of inductances and capacitances analytically for a given topology [3]- [9]. These procedures may lead to sub-optimal solutions for EMC, volume, area and specially power efficiency.…”

Section: Introductionmentioning

confidence: 99%

Power Efficiency and EMI Attenuation Optimization in Filter Design

Ferber

Mrad

Morel

et al. 2018

IEEE Trans. Electromagn. Compat.

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This paper presents a discrete conducted electromagnetic interference filter optimization procedure, based on a Genetic Algorithms. A macro-modeling technique taking into account the load impedance, the source emissions and the filter parasitic components, including the filter layout, is used to obtain an accurate solution for the optimization process. The latter searches among supplier passive component databases and provides, for a given filter topology, an optimal set of components available on the market. This approach has been applied to a differential Class-D audio amplifier for validation. By considering the EMI, the additional power losses introduced by the filter and the audio gain, two different optimization formulations have been tested. The first corresponds to maximizing the power efficiency of the system while respecting a determined level of electromagnetic emissions. The second corresponds to minimizing the EMI without exceeding a determined level of power loss. The optimized filters are built and measurements are carried out. The results show a remarkable power efficiency improvement and a significant EM emission reduction when compared to a reference filter.

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Series-Connected Grounding of Common-Mode EMI Filter

Cited by 13 publications

References 4 publications

Multipath conductors for EMI filter: recent developments

Multipath conductors for EMI filter: recent developments

An FPGA Chaos-Based PWM Technique Combined with Simple Passive Filter for Effective EMI Spectral Peak Reduction in DC-DC Converter

Power Efficiency and EMI Attenuation Optimization in Filter Design

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