Critical component's figure of merite influence on power supply unit efficiency

Frivaldský, Michal; Drgoňa, Peter; Kozacek, Boris; Piri, Marek; Pridala, Michal

doi:10.1109/elektro.2016.7512054

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…Since the designed converter will be supplied with middle type voltages AC 3 × 230 V and the output of the converter is 400-800 Vdc with a middle range of power output (3 kW), the semiconductor technologies from right side of flowchart seems to be optimal for this design (Figure 9). Additional PFC converter properties are related to reliability and favourable power density, while the low-cost aspects should be considered [26,27]. Due to flowchart and assumed requirements, the SiC semiconductor technology is selected as the proposed PFC converter.…”

Section: Selection Criterions On Power Transistormentioning

confidence: 99%

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Evaluation of the Efficiency Performance of 3-Phase, 6-Switch PFC Circuit Based on the Used 1.2 kV SiC Transistor

Hanko¹,

Frivaldský²,

Morgos³

2022

Electronics

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This paper evaluates the performance of the high-voltage wide-band gap SiC power transistors equipped within 3-phase bridgeless 3 kW PFC circuit. The main aim of the study is the experimental evaluation of the dynamic properties and driving power requirements of the transistors, for which the parameters are similar. These are competing products from different manufacturers, while the selection criterion was the same type of package technology (7 pin D2PAK). Second, the effect of the transistor type was analysed in terms of the performance efficiency of the PFC circuit. Within the analysis, the driver circuit was constructed first, and adapted to high voltage transistor driving. During individual measurements, the driver remained the same, while gate-driver losses were analysed for individual transistors. The obtained results reveal differences related to requirements on driving power, as well as to the dynamics of transistors themselves. At the end of the paper, the evaluation of efficiency for different operating conditions of a constructed PFC converter is realized. The obtained results provide a more detailed overview of the dynamic properties of transistors and their impact on the resulting efficiency of the main circuit also in terms of driving requirements.

show abstract

Section: Selection Criterions On Power Transistormentioning

confidence: 99%

“…this design (Figure 9). Additional PFC converter properties are related to reliability and favourable power density, while the low-cost aspects should be considered [26,27]. Due to flowchart and assumed requirements, the SiC semiconductor technology is selected as the proposed PFC converter.…”

Section: Selection Criterions On Power Transistormentioning

confidence: 99%

Evaluation of the Efficiency Performance of 3-Phase, 6-Switch PFC Circuit Based on the Used 1.2 kV SiC Transistor

Hanko¹,

Frivaldský²,

Morgos³

2022

Electronics

View full text Add to dashboard Cite

show abstract

“…The major contribution is focused on the mutual evaluation of SiC technology and GaN technology from the perspective of the application scope. In contrast, such evaluation concerning the functionality of the target application was not carried out in detail in already published studies [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

From Non-Modular to Modular Concept of Bidirectional Buck/Boost Converter for Microgrid Applications

et al. 2020

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In this article, the practical comparison of the operational performance of the modular (or multiport) and non-modular bidirectional buck/boost (bi-BB) DC/DC converter is realized. The main contribution of the work is the evaluation of both concepts based on various aspects, considering the qualitative indicators of the systems relevant for microgrids. Here, we discuss efficiency, electrical properties, costs, and component values. At the same time, critical comparisons are provided for converters based on SiC and GaN technology (non-modular high-voltage SiC-based dual-interleaved converter and modular low-voltage GaN-based). The concepts are specific with their operating frequency, whereby for each solution, the switching frequency is different and directly influences relevant components. The efficiency, overall system volume, output voltage ripple, and input current ripple are compared mutually between both concepts with a dependency on power delivery. These factors, together with overall volume and costs, are very important considering modern converters for microgrid systems. The summary of pros and cons is realized for each of the proposed converters, whereby the evaluation criterion is reflected within the electrical properties targeting microgrid application.

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Inductive coupling system for electric scooter wireless charging: electromagnetic design and thermal analysis

et al. 2019

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Critical component's figure of merite influence on power supply unit efficiency

Cited by 5 publications

References 10 publications

Evaluation of the Efficiency Performance of 3-Phase, 6-Switch PFC Circuit Based on the Used 1.2 kV SiC Transistor

Evaluation of the Efficiency Performance of 3-Phase, 6-Switch PFC Circuit Based on the Used 1.2 kV SiC Transistor

From Non-Modular to Modular Concept of Bidirectional Buck/Boost Converter for Microgrid Applications

Inductive coupling system for electric scooter wireless charging: electromagnetic design and thermal analysis

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