Dynamic Characteristics of Zero-Current-Switching Quasi-Resonant Buck Converter under Variation of Resonant Circuit and Load Parameters

Dymerets, Andrii V.; Yershov, Roman D.; Gorodny, Alexey N.; Denisov, Yurii O.; Boiko, Serhii; Kuznetsov, Vitaliy

doi:10.1109/elnano50318.2020.9088879

Cited by 7 publications

(2 citation statements)

References 18 publications

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“…Finally, in the fourth mode (Figure 5d), I 1 flows through Q 1 and remains constant until Q 1 turns off. The quasi-resonant buck converter [45,46] (Figure 6a) is another topology whose switching period consists of four operating modes. In the first mode (Figure 6b), Q 1 is turned on, which allows the inductor L r to be charged with input current I I .…”

Section: Quasi-resonant Dc-dc Power Convertersmentioning

confidence: 99%

Current Source Topologies for Photovoltaic Applications: An Overview

et al. 2022

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Current source topologies have several advantages compared to conventional voltage systems. Their inherent voltage-boosting function, intrinsic short-circuit protection, no electrolytic capacitor, direct-current control, continuous input current, and high reliability make them exceptional candidates for power generation systems, particularly for photovoltaic applications. This study provides an overview of the current source topologies for multi-stage photovoltaic grid-connected systems by comparing the number of components, performance, power-decoupling techniques, efficiency, and frequency operation. The overview reveals gain, performance, energy quality and lifetime improvements, thereby providing current source systems as an attractive alternative for renewable applications.

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Section: Quasi-resonant Dc-dc Power Convertersmentioning

confidence: 99%

Current Source Topologies for Photovoltaic Applications: An Overview

et al. 2022

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“…Quasi resonant converters can be half-wave or full-wave configuration. Analysis of the ZCS quasi-resonant converters is studied in [7,8]. In ZCS quasi-resonant buck converter, high side switching is necessary because of buck converter topology.…”

Section: Introductionmentioning

confidence: 99%

Quasi-Resonant Half-Wave Buck Converter with Non-Isolated High Side Switching Techniques

GÖRDÜK¹,

TOPUZ²,

Yıldırım³

2022

Sakarya University Journal of Science

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Power density of the power converters became one of the most important parameters in many applications. Power density is increased by reducing the losses through use of better performing components and circuit topologies. It can be increased further by reducing the size of filter components through increasing the switching frequency. In hard-switching converters however, losses due to switching will eventually render this method not applicable. Instead, resonant converters are utilized in many high-frequency switched power supplies. Soft-switching feature of these converters provide increased efficiency due to decreased switching losses. Such converters exploit the resonance of the specific inductors and capacitors in the circuit called as resonant tank elements. Resonance behavior is used in order to eliminate turn-on or turn-off losses. Existing power converter topologies can be modified to create the resonance during switching period. Such converters are called as quasi-resonant converters. This paper presents analysis and design of Zero Current Switching (ZCS) half-wave quasi-resonant buck converters. In this topology, high-side switching is required. Two different non-isolated highside switching techniques are utilized. Experimental results are obtained for light load to full load operation. Both techniques are compared in detail.

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