Study of An Improved Dual-Switch Converter With Passive Lossless Clamping

Tang, Yu; Wang, Ting

doi:10.1109/tie.2014.2341608

Cited by 29 publications

(11 citation statements)

References 22 publications

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“…For this topology it is important to manage the voltage oscillations that appear on the inductors during t on (i.e. when the two are connected in series), an aspect which was analysed in the unidirectional topology in [30]. The initial voltage spike appears because of the tolerances of the two inductances, and is theoretically limited by a maximum of two times the nominal voltage, as can be observed from Figure 2.…”

Section: Resultsmentioning

confidence: 99%

A bidirectional hybrid switched inductor converter with wide voltage conversion range

Hulea

Cornea

Muntean

et al. 2021

IET Power Electronics

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A bidirectional hybrid switched inductor converter (BHSI) is proposed in this paper. The converter uses an inductor switching cell in order to achieve a wide voltage conversion range, smaller passive components, and lower stress on the active devices. Apart from these advantages, the introduction of the additional inductor in the switching cell does not increase the complexity of the control structure, as is usually the case with other topologies with multiple components. The BHSI is compared, in terms of inductor/capacitor energies and total device stress, to other state-of-the-art topologies and its advantages are highlighted. Two 3 kW prototypes were built, using Si-MOSFETs and GaN-FETs, in order to analyse their performances from the efficiency point of view, and to validate the theoretical findings. The stability analysis of the converter is performed and tested in a supercapacitor storage application, resulting in a good operation in both charge and discharge modes.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Resultsmentioning

confidence: 99%

A bidirectional hybrid switched inductor converter with wide voltage conversion range

Hulea

Cornea

Muntean

et al. 2021

IET Power Electronics

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“…In this case, the boost and the buck-boost converters are driven by D 1 and D 2 , respectively. Thus, F I G U R E 9 First converter published with A-SL: Converter I 27 F I G U R E 1 0 Improved dual-switch converter 30 [Colour figure can be viewed at wileyonlinelibrary.com]…”

Section: High-gain Differential Boost/buck-boost Convertermentioning

confidence: 99%

“…The input inductors and parasitic capacitors of the active switches can cause a resonant circuit, unbalancing the structure of the resulting converter. In this context, Tang and Wang 30 have presented a passive lossless clamping for the converter proposed by Yang et al, 27 in order to overcome the strict practical requirements of its components, minimizing the voltage stress on the switches and suppressing the resonance. The proposed clamping circuit 30 makes use of a diode and a capacitor to offer an alternative path for the current inequalities and to mitigate the voltage peaks across the power switches, as it is evidenced in Figure 10.…”

Section: High‐gain Differential Dc–dc Convertersmentioning

confidence: 99%

“…Moreover, it is important to highlight that the proposed methodology is not only a powerful tool in the synthesis of new converters, since it also allows understanding how several non-isolated high-gain DC-DC converters with two switches [27][28][29][30][31][32][33] are derived and what their common characteristics are. For example, the proposed methodology can reveal, in a way never shown before, that the active switched inductor (A-SL) network 27 can be synthetized by connecting the output of the classical boost (positive output) and buck-boost (negative output) converters in a differential manner.…”

Section: Introductionmentioning

confidence: 99%

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Methodology for synthesis of high‐gain step‐up DC–DC converters based on differential connections

Salvador

Andrade

Lazzarin

et al. 2020

Circuit Theory & Apps

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This paper presents a new methodology for synthesis of high-gain step-up DC-DC converters. This methodology is based on the differential connection of two basic non-isolated DC-DC converters, in which the output voltages are respectively positive and negative with reference to a common terminal. Any load connected between these positive and negative terminals is subjected to a differential voltage equivalent to the sum of the voltages individually synthetized by each basic converter. When only non-isolated basic DC-DC converters (boost, buck-boost, Cuk, single-ended primary-inductor converter, and Zeta) are considered, six differential converters may be derived by the proposed methodology; nevertheless, voltage lifting techniques based on gain cells can also be applied to further extend the gain, resulting in others high-gain topologies. Besides the proposition of the methodology, the paper investigates the operating principle of the derived converters under different modulation strategies, evaluates the possibility of eliminating redundant components after integration, and correlates the obtained converters with already existing topologies. In fact, it is demonstrated that several high-gain step-up DC-DC converters previously published could be addressed as particular cases of differential connections of basic converters. Experimental results are presented to validate the methodology herein proposed.

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“…The steady‐state operating conditions and design of a converter, which incorporates an active inductor network, a capacitor, and a diode connected in parallel to the switching devices, are discussed in [18]. This passive lossless clamping circuit balances the voltage in the circuits and suppresses resonance without deterioration of the high‐voltage gain.…”

Section: Introductionmentioning

confidence: 99%

Switching regulator based on a high‐voltage gain DC–DC converter with non‐pulsating input/output currents

Mota-Varona

Ortiz-Lopez

Langarica‐Cordoba

et al. 2018

IET Power Electronics

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In recent years, new technological advances are requiring the use of direct current (DC)-DC switching converters with higher conversion ratios between input and output voltages. Additionally, the desirable characteristics of the converters are non-pulsating input and output currents as well as a reduced voltage stress on the switching devices. In this work, a control strategy is proposed for the high-voltage gain converter to regulate the output voltage. The steady-state operating conditions are discussed as well as the bilinear switching, non-linear averaged, and linear averaged models. The transfer functions of variables to be used for control purposes are analysed too. Experimental results for a 300 W switching regulator with 97% conversion efficiency are given to validate the controller design procedure.

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Study of An Improved Dual-Switch Converter With Passive Lossless Clamping

Cited by 29 publications

References 22 publications

A bidirectional hybrid switched inductor converter with wide voltage conversion range

A bidirectional hybrid switched inductor converter with wide voltage conversion range

Methodology for synthesis of high‐gain step‐up DC–DC converters based on differential connections

Switching regulator based on a high‐voltage gain DC–DC converter with non‐pulsating input/output currents

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