SPICE analysis of RL and RC snubber circuits for synchronous buck DC-DC converters

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

doi:10.1109/mipro.2015.7160245

Cited by 11 publications

(2 citation statements)

References 13 publications

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“…The associated oscillation is only partially visible on the waveforms, given the ultra-low inductance design and the higher value of frequency dependent resistance. Nevertheless, if needed, it can be damped at the AC side of the PM [30]. However, it is worth noticing that, if f int exceeds the parasitic frequency of the output filter, less attenuation might be guaranteed from it.…”

Section: Integrated Capacitive Snubbermentioning

confidence: 99%

Analysis and Design of a 1200 V All-SiC Planar Interconnection Power Module for Next Generation More Electrical Aircraft Power Electronic Building Blocks

Guacci

Bortis

Kovacevic-Badstuebner

et al. 2017

CPSS TPEA

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Abstract-Compact, light weight and efficient Power ElectronicBuilding Blocks are seen as fundamental components of future More Electric Power Systems, e.g. More Electrical Aircraft. Core elements supporting the trend are power modules employing solely SiC MOSFETs. In order to take advantage of the high switching speed enabled by SiC, novel modules concepts must be investigated. For example, low inductance planar interconnection technologies, integrated buffer capacitors and damping networks are possible solutions to mitigate switching overvoltages and oscillations at the switching node occurring for conventional modules. In this paper, the analysis and the design of a novel ultra-low inductance 1200 V SiC power module featuring an integrated buffer-damping network are discussed. The power module is first described and characterized with impedance measurements. Afterwards, a general optimization procedure for the sizing and the selection of the integrated components is presented and measurements are performed to verify the analysis and to highlight the improvements of the proposed solution.

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Section: Integrated Capacitive Snubbermentioning

confidence: 99%

Analysis and Design of a 1200 V All-SiC Planar Interconnection Power Module for Next Generation More Electrical Aircraft Power Electronic Building Blocks

Guacci

Bortis

Kovacevic-Badstuebner

et al. 2017

CPSS TPEA

View full text Add to dashboard Cite

show abstract

“…The value of C S = (C P 1 ||C P 2 )+C S is calculated from the model shown in integrated HFVR. A similar SPICE model of either HFVR or its MOSFET switches was already used in [9] and [10].…”

Section: A Description Of a Spice Modelmentioning

confidence: 99%

3D EM simulations and analysis of in-package metal plate interconnecting high-side and low-side FETs of DC-DC converter

Bacmaga

Blecic

Gillon

et al. 2015

2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS)

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The impact of the metal plate that interconnects the high-side and low-side FETs on the behavior of a synchronous buck converter is analyzed. A 3D model of the integrated voltage regulator and PCB power planes is analyzed in electromagnetic (EM) simulator. The lumped-element model of the plate is extracted. Parametrization of the package and PCB geometry is performed to describe their influence on the plate parasitics. The operation of the converter using the integrated voltage regulator is evaluated by SPICE simulations for several sets of plate parameters to correctly estimate their influence on the resonant frequency and efficiency of the converter.

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Current oscillation elimination for the helicopter transient electromagnetic inverter based on pole configuration

Zhang

Wang

et al. 2023

Review of Scientific Instruments

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In a helicopter transient electromagnetic system, the quality of the transmitting-current waveform will affect the geological exploration effect. In this paper, a helicopter TEM inverter, based on a single-clamp source and pulse width modulation technology, is designed and analyzed. Besides, it finds that there will be current oscillation in the early measuring stage. For this problem, first, the factors that cause the current oscillation are analyzed. Then, it is proposed to apply the RC snubber to eliminate this current oscillation. Since the imaginary part of the pole is the essence of oscillation, configuring the pole can eliminate the current oscillation. By establishing the early measuring stage system model, the characteristic equation of the load current with the snubber circuit is deduced. Next, the characteristic equation is solved by the exhaustive method and the root locus method to obtain the parametric region that eliminates the oscillation. Finally, through simulation and experimental verification, the proposed snubber circuit design method can be used to eliminate the early measuring stage current oscillation. Compared to the method of switching into the damping circuit, it can achieve the same performance, more important is that there is no switching action and it is easy to achieve.

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SPICE analysis of RL and RC snubber circuits for synchronous buck DC-DC converters

Cited by 11 publications

References 13 publications

Analysis and Design of a 1200 V All-SiC Planar Interconnection Power Module for Next Generation More Electrical Aircraft Power Electronic Building Blocks

Analysis and Design of a 1200 V All-SiC Planar Interconnection Power Module for Next Generation More Electrical Aircraft Power Electronic Building Blocks

3D EM simulations and analysis of in-package metal plate interconnecting high-side and low-side FETs of DC-DC converter

Current oscillation elimination for the helicopter transient electromagnetic inverter based on pole configuration

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