A New Hybrid Ćuk Converter

Lica, Septimiu; Pop-Calimanu, Ioana-Monica; Lascu, Dan; Popescu, Sorin; Tomoroga, Mircea; Ciresan, Aurel

doi:10.1109/isetc.2018.8583911

Cited by 2 publications

(6 citation statements)

References 10 publications

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“…The output capacitor is design such that to be high enough to assure an output voltage ripple less than the value imposed by specifications. From Equations (5) and (24) its minimum value is given by:…”

Section: Semiconductor Stresses and Inductor Currents And Capacitor Vmentioning

confidence: 99%

“…A comparison between the proposed hybridĆuk dc-dc converter and different step-up/step-down topologies namely the classical Buck-Boost [30], classicalĆuk [32] and hybridĆuk from Reference [24] is presented in Table 1. In order the comparison to be fair, it is considered that they are supplied by the same input voltage V g , they deliver the same output voltage V o on the same load R. Hence, the conversion ratio M and the output power P o are the same.…”

Section: Comparison To Similar Converter Topologiesmentioning

confidence: 99%

“…These power circuits should be able to step-up [1][2][3][4][5][6][7][8][9], step-down [10][11][12][13] or step-up/step-down [14][15][16][17][18][19][20][21] the voltage from the input. The polarity of the output voltage can be the same [1][2][3][4][6][7][8] or reverse [5,[22][23][24][25][26][27][28][29] compared to that of the input voltage. Regarding to the static conversion ratio, the converter can be used in applications where a small or large difference between the input and output voltages of the converter are encountered.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, depending on the application requirements, considering the few parameters mentioned before, different types of converters exist on the market. Because this paper introduces a newĆuk topology, different types of both step-down/step-up converters have been analyzed [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32]. If isolation is not necessary, the classical Buck-Boost converter [30] can be used.…”

Section: Introductionmentioning

confidence: 99%

“…The same work reported in References [25,27] improve the step-up capabilities by inserting a switched inductor structure in the classicalĆuk converter. In References [24,28], it is shown that coupling the inductors in the additional switching cell inserted in aĆuk converter, this leads to a higher step-up conversion ratio than in the classical one. Different structures of isolatedĆuk converters are presented in References [33,34].…”

Section: Introductionmentioning

confidence: 99%

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A New Hybrid Ćuk DC-DC Converter with Coupled Inductors

2020

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This paper proposes a new hybrid Ćuk-type converter employing two inductors built on the same core which can be successfully used in applications requiring an output voltage considering higher than the input one. With few components added, in the proposed converter the static conversion ratio can be easily extended becoming wider compared to the classical Ćuk topology. At the same duty cycle range the output voltage is higher than in the classical Ćuk converter. The output voltage remains with negative polarity and with a reduced ripple. An advantage of the new converter is given by its two degrees of freedom. A DC and AC analysis is carried out, device stresses are evaluated and a comparative analysis of the proposed hybrid Ćuk topology to other indirect converters has also been performed. All the equations necessary for designing the converter are provided. The simulations performed together with the practical experiments carried out, all results confirm that the theoretical considerations are correct and validate the features that the proposed converter can provide a higher static conversion ratio without operating at high duty cycles.

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Section: Semiconductor Stresses and Inductor Currents And Capacitor Vmentioning

confidence: 99%

Section: Comparison To Similar Converter Topologiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A New Hybrid Ćuk DC-DC Converter with Coupled Inductors

2020

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Modelling of hybrid Cuk converters using the methodology of voltage and current references

2022

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This paper presents a methodology for obtaining the voltage and current references that permits the modelling of Hybrid Cuk (HC) Converters. The passive sign convention when system elements absorb energy is used to derive the differential equations governing the behaviour of the converter. This allows the explanation of the operation principle of the converter that is performed through the switching states. The behavior of the converter is studied by means of an energy interchange analysis between inductors and capacitors. After the deduction of the references and operating principle, the differential equations (DEs) that allow the modelling of the converter are deduced. Finally, a comparison between the mathematical model and the circuital representation of the converter is performed in OpenModelica for validation purposes. The simulations’ results allow to conclude that the obtained references and differential equations are coherent with the circuital implementation.

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A New Hybrid Ćuk Converter

Cited by 2 publications

References 10 publications

A New Hybrid Ćuk DC-DC Converter with Coupled Inductors

A New Hybrid Ćuk DC-DC Converter with Coupled Inductors

Modelling of hybrid Cuk converters using the methodology of voltage and current references

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