Twin-Buck Converter With Zero-Voltage Transition

Moo, C.S.; Chen, Yu-Jen; Cheng, Hung‐Liang; Hsieh, Yao Ching

doi:10.1109/tie.2010.2069072

Cited by 51 publications

(30 citation statements)

References 29 publications

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“…In addition to increasing power capacity and reducing current ripple, some interleaved dc/dc converters also have the advantages of ZVS operation [17][18][19][20]. In these interleaved converters, the active switches are arranged to be turned on and off alternately and an additional inductor is added.…”

Section: Introductionmentioning

confidence: 99%

An Interleaved DC/DC Converter with Soft-switching Characteristic and high Step-up Ratio

et al. 2020

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This study presents a dc/dc converter featuring soft-switching characteristic, high conversion efficiency, and high step-up ratio. The proposed circuit is composed of two parallel-connected boost converters. Only one coupled inductor is used to replace inductors of the boost converters which are interleaved operated at discontinuous-conduction mode (DCM). The current ripples at the input and the output terminals are reduced due to the interleaved operation. By freewheeling the current of the coupled inductor to discharge the stored electric charges in the parasitic capacitors of the active switches, both active switches can fulfill zero-voltage switching on (ZVS). Owing to DCM operation, the freewheeling diodes can fulfill zero-current switching off (ZCS). Therefore, the power conversion efficiency is improved. The operation principle for each operation mode is analyzed in detail and design equations for the component parameters are provided in this report. Finally, a prototype 200 W 48–400 V converter was implemented and measured to demonstrate the effectiveness of the proposed circuit.

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Section: Introductionmentioning

confidence: 99%

An Interleaved DC/DC Converter with Soft-switching Characteristic and high Step-up Ratio

et al. 2020

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“…There exist topologies capable for avoiding the small duty ratio; these use transformers, capacitors and/or multistage converters [4][5][6][7][8][9][10][11][12]. According to literature [13], the system may also operate at two stages, on the first hand may include a conventional buck converter and, on the second hand an isolated converter, which may operate under 50% of the duty ratio.…”

Section: Introductionmentioning

confidence: 99%

Delayed quadratic buck converter

Vázquez

Reyes-Malanche

Vázquez³

et al. 2016

IET Power Electronics

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Nowadays, the microprocessors family normally require for the input source not only low voltage but also high current. There exists an increasing necessity for developing new applied techniques on topologies and control strategies, which may be able to fulfil such requirements. Although a considerable amount of applications use the conventional buck converter for step-down for DC/DC conversion, when a high step-down conversion is required is a much better choice to implement the quadratic buck converter (QBC); however, the problem for obtaining a high step-down conversion at wide duty ratio still remains. This document proposes the delayed quadratic buck converter, which offers a very high-step-down dc-dc conversion with a wide duty cycle. The QBC is modified in its topology by adding an inductor, which allows us to obtain for the duty cycle a higher increment than this normally obtained by a quadratic one. Converter behaviour and analysis are illustrated. Experimental results are also shown for a conversion from 36 to 1.5 V and an output power of 20 W.

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“…In order to eliminate the switching losses in buck converter, various soft-switching techniques have been proposed [5] [6]. In these circuits, soft-switching operations are achieved at the expense of increased voltage and current stresses, increased cost and complexity, and auxiliary circuits commonly consisting of a combination of passive components such as inductors and capacitors and additional active components such as MOSFETs and diodes.…”

Section: Introductionmentioning

confidence: 99%

“…In high power applications, interleaving technique has been widely used to achieve lower current ripple, smaller filter footprint, better dynamic performance, and lower losses per switch for an easier thermal design [6]- [10]. In [11], it was shown that reverse-recovery losses can be greatly reduced in the interleaved boost converter with coupled inductors.…”

Section: Introductionmentioning

confidence: 99%

An interleaved buck converter with reduced reverse-recovery problems

Cao

Ansari

Kim

2014

2014 IEEE International Conference on Industrial Technology (ICIT)

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An interleaved buck converter with low conduction losses and reduced diode reverse-recovery problems is proposed in this paper. The circuit consists of two interleaved buck converters with one coupled inductor for each phase, operating in continuous conduction mode (CCM). Zero-current switching (ZCS) condition duting turn-on transitions and significant reduction of the losses associated with diode reverse recovery are accomplished through the coupled inductors. The two phases operate in out of phase mode. Thus, the input and output currents can be continuous with low ripple. Constant frequency operation with low switching losses and low output current ripple is very suitable for the realization of battery chargers in standalone PV applications. The operating principle of the proposed converter are presented in detail. Finally, an 400 W, 100 kHz experimental prototype was built to verify the theoretical analysis and feasibility of the proposed converter, with the efficiency up to 94.5 %.

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Twin-Buck Converter With Zero-Voltage Transition

Cited by 51 publications

References 29 publications

An Interleaved DC/DC Converter with Soft-switching Characteristic and high Step-up Ratio

An Interleaved DC/DC Converter with Soft-switching Characteristic and high Step-up Ratio

Delayed quadratic buck converter

An interleaved buck converter with reduced reverse-recovery problems

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