Comparative evaluation of soft-switching concepts for bi-directional buck&amp;#x002B;boost dc-dc converters

Waffler, S.; Kolar, Johann W.

doi:10.1109/ipec.2010.5542152

Cited by 33 publications

(6 citation statements)

References 19 publications

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“…Thus, topologies providing soft-switching are preferred such as e.g. phase-shift full bridge (PSFB), dual active bridge (DAB) or cascaded buck-boost converters [2] for DC-DC conversion and triangular current mode (TCM) boost converter [3] for power factor corrected (PFC) AC-DC conversion, as shown in Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

ZVS of Power MOSFETs Revisited

Kasper

Burkart

Deboy

et al. 2016

IEEE Trans. Power Electron.

293

127

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Aiming for converters with high efficiency and high power density demands converter topologies with zero-voltage switching (ZVS) capabilities. This paper shows, that in order to determine whether ZVS is provided at a given operating point, the stored charge within in the MOSFETs has to be considered and the condition LI 2 ≥ 2QossVDC has to be fulfilled. In the case of incomplete soft-switching, non-zero losses occur which are analytically derived and experimentally verified in this paper. Furthermore, the issue of non-ideal soft-switching behavior of Si super-junction MOSFETs is addressed.

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Section: Introductionmentioning

confidence: 99%

ZVS of Power MOSFETs Revisited

Kasper

Burkart

Deboy

et al. 2016

IEEE Trans. Power Electron.

293

127

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show abstract

“…It is reversely connected by a buck converter and a boost converter without the low side DC-link capacitor. For the NIBBC, above-mentioned soft-switching methods can be used to be control-only soft-switching NIBBCs [143][144], ALC ZVS NIBBCs [145][146][147], and ZVT NIBBCs [148][149] [150]. The NIBBC has several softswitching modulation methods listed by [144].…”

Section: A Combined Convertersmentioning

confidence: 99%

State-of-the-Art Review on Soft-Switching Technologies for Non-Isolated DC-DC Converters

et al. 2021

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The soft-switching technology is widely used in DC-DC converters, DC-AC inverters, and AC-DC rectifiers. Soft-switching non-isolated DC/DC converters (Buck, Boost, and Buck-Boost) are the most active research area of the soft-switching technology, and fruitful results are achieved. However, there is currently no comprehensive review for the soft-switching technology of non-isolated DC/DC converters. This paper introduces soft-switching topologies for non-isolated DC/DC converters, and presents classification and characteristic of all kinds of soft-switching technologies. Some soft-switching technologies of derivative converters (non-inverting Buck-Boost converters and multiphase converters) are also presented. Finally future trends and generalized constitution methods of the soft-switching topology for non-isolated DC/DC converters are concluded. The soft-switching theory and constitution methods summarized in this article are expected to be able to guide the proposing of new soft-switching technologies for DC-DC converters.

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“…For DC power supply systems, a buck + boost converter topology is considered promising [1,3]. The power circuit diagram of such a converter is shown in figure 1.…”

Section: Introductionmentioning

confidence: 99%

A software-based method for energy losses decreasing in cascaded buck + boost DC-DC converter

Nepomnyaschiy

Krasnobaev

Sazonov

et al. 2022

J. Phys.: Conf. Ser.

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A MOSFETs switching times calculation method for the known modulation strategy for bidirectional buck + boost DC-DC converter is presented. A former low-loss, constant-frequency modulation strategy based on a negative inductor offset current takes place at the beginning of each conversion period which provides the ability to turn on converter’s MOSFET switches under zero-voltage and zero current switching (ZVS/ZCS) condition. Time interval between switching times of half-bridge MOSFETs is needed to provide the ability to turn on the MOSFET under ZVS/ZCS due to its antiparallel diode takes over an inductor current. Described method based on a switching delay time estimation for the worst case of converter’s circuit components spread which allows to calculate proper MOSFETs switching times by Digital Control Unit (DCU). The article describes in detail the switching of the input half-bridge MOSFETs at first switching time. The clarified offset current calculation method, based on an estimated switching delay and converter’s input voltage is presented.

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Comparative evaluation of soft-switching concepts for bi-directional buck+boost dc-dc converters

Cited by 33 publications

References 19 publications

ZVS of Power MOSFETs Revisited

ZVS of Power MOSFETs Revisited

State-of-the-Art Review on Soft-Switching Technologies for Non-Isolated DC-DC Converters

A software-based method for energy losses decreasing in cascaded buck + boost DC-DC converter

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