A Systematic Electromagnetic-Circuit Method for EMI Analysis of Coupled Interconnects on Dispersive Dielectrics

Tang, Min; Lu, Jiaqing; Mao, Jun‐Fa; Jiang, Lijun

doi:10.1109/tmtt.2012.2220562

Cited by 16 publications

(6 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In design of power electronic converters, one of the concerns frequently addressed in the literature is reducing the size and weight of power converters [1][2][3][4]. Increasing the switching frequency results in smaller passive components, however, this leads to increased switching losses due to non-ideal behaviour of switching components [5][6][7][8][9], and electromagnetic interference (EMI), mostly arisen by the parasitic capacitors between some converter points and earth [10]. To overcome the drawbacks of high switching frequencies and find a way to enhance the power density, soft-switching conditions must be provided for semiconductor elements [11,12].…”

Section: Introductionmentioning

confidence: 99%

Family of soft‐switching pulse‐width modulation converters using coupled passive snubber

Esteki

Mohammadi

Yazdani

et al. 2017

IET Power Electronics

View full text Add to dashboard Cite

Efficiency, power density and electromagnetic interference (EMI) stand among the main concerns in power electronics and determine the quality of a power converter. To address the aforementioned concerns, this study proposes a cost effective passive soft-switching technique using coupled inductor for pulse-width modulation (PWM) converters. Through providing soft-switching conditions, switching losses are reduced and the use of coupled inductor technique improves the power density. Since, the slope of voltage and current variations over time is reduced by the proposed passive soft-switching technique, the EMI level is expected to reduce. This technique can be applied to a wide range of PWM converters, however, the analysis is focused on a soft-switching boost converter to provide a framework. The experimental measurements of the realised 200 W boost converter show that the efficiency is improved by 2 and 3.8% as compared to a hard switching boost converter with and without an RCD snubber circuit, respectively. Moreover, the experimental EMI measurements indicate that with no external EMI filter, the proposed technique has reduced the main peak of EMI level by 8 dBµV (in comparison to its hard switching counterpart) which satisfies CISPR22 class A EMC standard limitation.

show abstract

Section: Introductionmentioning

confidence: 99%

Family of soft‐switching pulse‐width modulation converters using coupled passive snubber

Esteki

Mohammadi

Yazdani

et al. 2017

IET Power Electronics

View full text Add to dashboard Cite

show abstract

“…Taking transmission line (TL) network in a real environment into account detailly, the simulation process will be very complex. In the rapid progress in computational EM solvers, the finite‐difference time‐domain (FDTD) remains a popular choice for solving EMI problems with complex geometry and inhomogeneous medium . However, the primary shortcoming of staircase error restricts its applicability in handling the interaction of EM waves with complex objects incorporating small features and multi‐level coupling paths.…”

Section: Introductionmentioning

confidence: 99%

“…In the rapid progress in computational EM solvers, the finite-difference time-domain (FDTD) 3 remains a popular choice for solving EMI problems with complex geometry and inhomogeneous medium. [4][5][6][7] However, the primary shortcoming of staircase error restricts its applicability in handling the interaction of EM waves with complex objects incorporating small features and multi-level coupling paths. Thus, several modified FDTD methods have been proposed to take hybrid EMI effects of different coupling paths into account by combining the Maxwell's equations, TL equation, and circuit theory together.…”

Section: Introductionmentioning

confidence: 99%

EMI effect simulation of braided cable network using a hybrid FDTD method

Luo

Wang

Xia

et al. 2017

Int J Numerical Modelling

View full text Add to dashboard Cite

This paper proposes a novel time domain numerical scheme based on a modified finite‐difference time‐domain (FDTD) method for electromagnetic interference (EMI) analysis of braided cable networks. In this method, a reasonable physical boundary condition is constructed by a transfer impedance model, while the spatial fields can be applied by way of adding incentive items into the transmission line equations. Besides, the full‐wave finite‐difference time‐domain(2, 4) method with thin wire model, transmission line equation and the modified nodal analysis are combined in order to solve cable‐interconnect line network transient responses in the problem of field‐line‐circuit union simulation. This method has good agreements with HSPICE. In addition, the method is used successfully in analyzing a cable‐interconnect network with different shielding characteristics.

show abstract

“…First of all, to analyze emission, equivalent model or model-reduction techniques may reduce the complexity of the problem [1], [2]. Furthermore, when looking at susceptibility, various hybrid techniques have been proposed that combine full-wave methods with model-reduction techniques [3], [4] or that use an extended Sparameter model [5], [6]. Another way to deal with the high computational demands is by using Domain Decomposition Methods (DDMs).…”

Section: Introductionmentioning

confidence: 99%

Full-Wave Modeling of Interacting Multiport Devices With Arbitrary Relative Positions and Orientations for Efficient EMI Assessment

Stockman

Rogier

Ginste

2016

IEEE Trans. Electromagn. Compat.

View full text Add to dashboard Cite

Abstract-A novel method to accurately and efficiently model the interaction between radiating devices is proposed. Whereas previous work of the authors dealt with singleport devices (antennas), this paper constitutes an important extension to actual multiport devices, as such paving the way for electromagnetic interference assessment of real-life (sub)systems early in their design cycle. The method solely relies on the knowledge of the radiation patterns of the different ports of the devices, which can either be measured or simulated using a solver of choice. These patterns are then used to compute the electromagnetic interaction between the devices that may be positioned in each other's radiative near-field (Fresnel region) or far-field (Fraunhofer region). Furthermore, in the model, their relative positions and orientations can be altered at a very low computational cost. The technique is thoroughly validated and illustrated, demonstrating its appositeness to study the electromagnetic compatibility behavior of the multiport devices.

show abstract

A Systematic Electromagnetic-Circuit Method for EMI Analysis of Coupled Interconnects on Dispersive Dielectrics

Cited by 16 publications

References 34 publications

Family of soft‐switching pulse‐width modulation converters using coupled passive snubber

Family of soft‐switching pulse‐width modulation converters using coupled passive snubber

EMI effect simulation of braided cable network using a hybrid FDTD method

Full-Wave Modeling of Interacting Multiport Devices With Arbitrary Relative Positions and Orientations for Efficient EMI Assessment

Contact Info

Product

Resources

About