A Novel Turn-On/Off Snubber for Interleaved Boost Converters

Tseng, S.-Y.; Shiang, J.-Z.; Chang, Ho-Hsuan; Jwo, Wu-Shun; Hsieh, C.-T.

doi:10.1109/pesc.2007.4342376

Cited by 12 publications

(5 citation statements)

References 8 publications

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“…Accordingly, the multiphase converter with soft switching is presented. The literatures [33][34][35][36] adopt multiple phases with the corresponding number of auxiliary resonance circuits, leading to increasing the number of components to increase conduction loss as well as cost. In the literature [35], the two-phase converter uses the same auxiliary resonant circuit.…”

Section: Introductionmentioning

confidence: 99%

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Interleaved Boost Converter with ZVT-ZCT for the Main Switches and ZCS for the Auxiliary Switch

2020

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A soft-switching interleaved topology is presented herein and applied to the boost converter. The basic operating principle is that the main power switches are turned on at zero voltage and turned off at zero current via the same auxiliary resonant circuit whose switch is turned on from zero current. Furthermore, as compared to the traditional boost converter, the proposed topology has three additional auxiliary diodes, two additional auxiliary capacitors, one additional auxiliary inductor, and one additional auxiliary switch. On the other hand, since the interleaved control is adopted herein, the difference in current between the two phases exists. Hence, the cascaded control is utilized to regulate the output voltage to the desired voltage via the first phase, whereas the current-sharing control, based on half of the input current as the current reference for the second phase, is employed so as to make the load current extracted from the two phases as evenly as possible. In this paper, the effectiveness of the proposed topology and control strategy is demonstrated by some experimental results.

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Section: Introductionmentioning

confidence: 99%

“…However, only the ZVS is used, such that the efficiency improvement is limited. In the literature [36], the two-phase converter uses one snubber circuit so as to make the main switches achieve soft switching. However, the resonant inductor locates in the power path, thereby making conduction loss increased.…”

Section: Introductionmentioning

confidence: 99%

Interleaved Boost Converter with ZVT-ZCT for the Main Switches and ZCS for the Auxiliary Switch

2020

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“…Consequently, the inductance and core volume of the input inductors can be reduced (5)- (9) . Moreover, by considering multilevel structure topologies on the FCBC, the inductance and core volume of the input inductors can also be reduced (1)- (4) .…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, such topologies require additional inductors, capacitors, and switching devices, as well as other components and devices. Nevertheless, if a very-high-efficiency DC-DC boost converter is critical, regardless of size and weight, such topologies might be an option (1) (4)- (9) . Therefore, for single-phase operation and simplicity of the converter circuit, the FCBC offers a good option due to the need for fewer passive components and switching devices.…”

Section: Introductionmentioning

confidence: 99%

Size Reduction of DC-DC Converter using Flying Capacitor Topology with Small Capacitance

et al. 2014

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The purpose of the present paper is to analyze the input inductor design and to establish the relationship between the capacitance of the flying capacitor and the output voltage ripple in order to reduce the size and weight of the flying capacitor DC-DC boost converter (FCBC). The inductance of the input inductor is designed by considering the maximum input current ripple, and the experimental results are used to confirm that the input current ripple is within the designed value. Furthermore, according to the design specifications, the required inductance of an input inductor is approximately 25% of that of a conventional two-level DC-DC boost converter, and the required inductor core volume is approximately 35% of that of a conventional two-level DC-DC boost converter. Moreover, the capacitance of the flying capacitor and the output voltage ripple are confirmed to be independent of each other. Theoretically, this is because the time constant of the output capacitance and the output resistance of the FCBC is larger than the switching period of the switching frequency. This finding is confirmed by the simulation and experimental results of the present study. On the basis of this finding, the capacitance of the flying capacitor can be estimated and designed without considering the output voltage ripple. Moreover, the achieved maximum efficiency of the designed FCBC is 98.5% of the output power at 1 kW.

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“…Multiple boost converters connected in parallel form the IBC circuit (Phani and Veerachary 2006;Tseng et al 2007). Due to variations in environmental conditions, the insolation level varies; hence, the power output from the panel varies.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Interleaved Boost Converter Configurations for Solar Photovoltaic System Interface

Ramaprabha¹,

Balaji²,

Raj³

et al. 2013

Jou. Eng. Res.

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Solar photovoltaic (SPV) panels that convert light energy into electrical energy through the photovoltaic effect have nonlinear internal resistance. Hence, with the variation in the intensity of light falling on the panel, the internal resistance varies. For effective utilization of the SPV panel, it is necessary to extract the maximum power from it. For maximum power extraction from SPV panels, DC-DC converter interface is used. The problem in using high frequency converter interface is the resultant high frequency ripple interaction with the SPV system. In this work, an interleaved boost converter (IBC) is considered to reduce the ripple. Our finding is that IBC fed by a SPV panel reduces this ripple to a greater extent. IBC also has a faster transient response as compared to conventional boost converters with reduced ripple contents. The main aim of this paper is to present a comparative analysis of the performance of IBC with inductors that are coupled in different ways. The results of the simulation were extrapolated with the help of MATLAB software and verified through experimentation.

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A Novel Turn-On/Off Snubber for Interleaved Boost Converters

Cited by 12 publications

References 8 publications

Interleaved Boost Converter with ZVT-ZCT for the Main Switches and ZCS for the Auxiliary Switch

Interleaved Boost Converter with ZVT-ZCT for the Main Switches and ZCS for the Auxiliary Switch

Size Reduction of DC-DC Converter using Flying Capacitor Topology with Small Capacitance

Comparison of Interleaved Boost Converter Configurations for Solar Photovoltaic System Interface

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