Wideband Modeling of DC-DC Buck Converter with GaN Transistors

Musznicki, Piotr; Derkacz, Pawel B.; Chrzan, Piotr

doi:10.3390/en14154430

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…Nevertheless, the approaches to testing simulation models of converter systems are very diverse-depending on the purpose of the research. An example may be the work devoted to modeling the DC/DC converter, also using GaN devices [32].…”

Section: Simulation Studies Of the Pvs Modelmentioning

confidence: 99%

Power Electronics Programmable Voltage Source with Reduced Ripple Component of Output Signal Based on Continuous-Time Sigma-Delta Modulator

Gwóźdź¹

2021

Energies

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In this work, an idea of a wideband, precision, power electronics programmable voltage source (PVS) is presented. One of the basic elements of the converter, the control section, contains a continuous-time sigma-delta modulator (SDM) with a pair of interconnected complementary comparators, which represents a new approach. In this case, the SDM uses comparators with a dynamic hysteresis loop (DHC) that includes an AC circuit rather than an R-R network. Dynamic hysteresis is a very effective way of eliminating parasitic oscillation during the signal transition at the input of the comparator; it also affects the frequency characteristics and, especially, the phase properties of the comparator, and this phenomenon is exploited in the proposed converter. The main disadvantage of all pulse-modulated converters is the presence of a ripple component in the output voltage (current), which reduces the quality of the output signal and may cause high-frequency disturbances. A basic feature of PVS is a lower RMS value for the pulse modulation component in the output voltage of the converter, compared to the typical value. Another important feature of the proposed converter is the ability of precise mapping of the output voltage to the reference (input) signal. The structure of the control circuit is relatively simple—no complex, digital components are used. Due to the high frequency of the SDM output bit-stream, the simulation model of the power stage of PVS is based on the power modules with gallium-nitride field effect transistors (GaN FETs). The work discusses the rules of PVS operations and the results from PVS simulation model studies as well as highlights the possible application fields for systems with a PVS.

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Section: Simulation Studies Of the Pvs Modelmentioning

confidence: 99%

Power Electronics Programmable Voltage Source with Reduced Ripple Component of Output Signal Based on Continuous-Time Sigma-Delta Modulator

Gwóźdź¹

2021

Energies

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“…There is a basic family of non-isolated converters, usually called the second-order converters. The family is comprised of the buck, boost, and buck-boost converters [1][2][3][4][5][6][7][8][9][10][11][12]. Figure 1 shows the basic family of second-order converters.…”

Section: Introductionmentioning

confidence: 99%

The Fourth-Order Single-Switch Improved Super-Boost Converter with Reduced Input Current Ripple

et al. 2021

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This paper introduces a new single switch DC-DC fourth-order boost converter. The proposed converter is the improved version of an existing converter known as the super-boost converter. The improved super-boost ISP converter achieves a smaller input current ripple than the super-boost converter when the same parameters in passive components are used. Conversely, smaller components can be used to achieve the same input current ripple, which leads to a compact and cheaper design. A comparative evaluation showed a reduction of 37.3% of stored energy in inductors to comply with a required input current ripple in comparison with the super-boost converter for a particular design. Experimental results are provided to corroborate this benefit of the ISB proposed topology.

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Measurement procedure to generate a GaN power transistor surrogate model at GHz frequencies

Henninger,

Hansen,

Pommerenke

2024

2024 International Symposium on Electromagnetic Compatibility – EMC Europe

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Wideband Modeling of DC-DC Buck Converter with GaN Transistors

Cited by 3 publications

References 16 publications

Power Electronics Programmable Voltage Source with Reduced Ripple Component of Output Signal Based on Continuous-Time Sigma-Delta Modulator

Power Electronics Programmable Voltage Source with Reduced Ripple Component of Output Signal Based on Continuous-Time Sigma-Delta Modulator

The Fourth-Order Single-Switch Improved Super-Boost Converter with Reduced Input Current Ripple

Measurement procedure to generate a GaN power transistor surrogate model at GHz frequencies

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