EMC-oriented design of output stage of synchronous buck converter

Blecic, Raul; Bacmaga, Josip; Gillon, Renaud; Nauwelaers, Bart; Barić, Adrijan

doi:10.1109/emccompo.2017.7998088

Cited by 5 publications

(5 citation statements)

References 8 publications

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“…Cavity-mode resonances can be suppressed by adding stitching vias that connect the two layers [32]. Stitching vias are used in the backplane and con-nector boards in [16] and [17] and no resonances are seen there.…”

Section: Resultsmentioning

confidence: 99%

“…The usage of the two connectors is proposed in [15] to enable measurements of the magnetic field component normal to the printed circuit board (PCB) plane. The connectors are used in [16] and [17] to characterize the radiated EM emission of two synchronous buck converters. The purpose of the connectors is to position a converter inside the transverse electromagnetic (TEM) cell in multiple, well-defined orientations relative to the septum of the TEM cell, and to provide the control signals and the supply and load to the converters.…”

Section: Introductionmentioning

confidence: 99%

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Multisegment Multiconductor Transmission Line Model of High-Current Card-Edge Connectors With Analytically Calculated Model Parameters

Blecic

Bako

Gillon

et al. 2019

IEEE Trans. Electromagn. Compat.

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Modeling of two high-current card-edge connectors is presented. The modeling methodology consists of dividing the connectors into uniform segments and modeling each segment by a multiconductor transmission line. The calculation of the per-unit-length parameters of each segment is based on the analytic expression for a generalized capacitance matrix of widely sepa-rated conductors. The proposed modeling methodology generates the circuit model solely from the geometrical parameters of the con-nectors without the need to perform measurements and/or electro-magnetic simulations. The modeling methodology is applied to two 62-pin high-current card-edge connectors that are used in the mea-surement setup for characterization of radiated electromagnetic emission of switched-mode power converters. Two printed circuit boards are designed to characterize the connectors and to vali-date the modeling methodology. The model of the complete char-acterization setup shows good agreement with the Sparameter measurements up to 3 GHz.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multisegment Multiconductor Transmission Line Model of High-Current Card-Edge Connectors With Analytically Calculated Model Parameters

Blecic

Bako

Gillon

et al. 2019

IEEE Trans. Electromagn. Compat.

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“…The proposed methodology is applied to the measured data of two synchronous buck converters presented in [16]. The converters are used as the examples of complex unintentional radiators.…”

Section: A Measurements Of Synchronous Buck Convertersmentioning

confidence: 99%

“…The proposed methodology is validated on the measurements of the small loop, which is a structure with the known radiation characteristics. Furthermore, multiple dipole moments are extracted from the measurements of two synchronous buck converters presented in [16]. The converters are used as the examples of complex unintentional radiators.…”

Section: Introductionmentioning

confidence: 99%

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Improved Estimation of Radiated Fields of Unintentional Radiators by Correction of the Impedance Mismatch Between a Transverse Electromagnetic Cell and a Hybrid Coupler

Blecic

Stimac

Gillon

et al. 2018

IEEE Trans. Electromagn. Compat.

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Radiated fields of unintentional radiators can be estimated from the measurements performed by a transverse electromagnetic cell. A hybrid coupler connected to the outputs of the transverse electromagnetic cell separates the electric and magnetic coupling, which allows to calculate the generated far-field radiation consistently. However, the transverse electro-magnetic cell and the hybrid coupler are mismatched which introduces an error in the measured results. The error of up to 8.5 dB is obtained in the measurements of the small loop. The impedance mismatch is dominantly a consequence of the phase shift which is related to the propagation of the signal through the measurement setup and which is present even if all elements of the measurement setup are ideal. The methodology for correcting the measured results is proposed and it is validated on the measurements of the small loop. The methodology is applied to the measurements of two synchronous buck converters and their radiated fields are estimated.

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Impact of Dead Times on Radiated Emissions of Integrated and Discrete DC-DC Converter

Bacmaga

Blecic

Pareschi

et al. 2019

2019 12th International Workshop on the Electromagnetic Compatibility of Integrated Circuits (EMC Compo)

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EMC-oriented design of output stage of synchronous buck converter

Cited by 5 publications

References 8 publications

Multisegment Multiconductor Transmission Line Model of High-Current Card-Edge Connectors With Analytically Calculated Model Parameters

Multisegment Multiconductor Transmission Line Model of High-Current Card-Edge Connectors With Analytically Calculated Model Parameters

Improved Estimation of Radiated Fields of Unintentional Radiators by Correction of the Impedance Mismatch Between a Transverse Electromagnetic Cell and a Hybrid Coupler

Impact of Dead Times on Radiated Emissions of Integrated and Discrete DC-DC Converter

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