Implementation of a ZVS interleaved converter with two transformers

Lin, Bor‐Ren; Huang, Chengcheng; Shih, Kun-Liang

doi:10.1049/iet-pel.2008.0142

Cited by 3 publications

(5 citation statements)

References 7 publications

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“…To achieve a higher step-down ratio, the proposed IBC does not require any transformer or coupled inductor [13,16]. The proposed IBC has higher step-down conversion ratio than the existing IBCs [11][12][13]16]. An IBC with higher step-down conversion ratio is introduced in [22].…”

Section: Experimental Setup and Resultsmentioning

confidence: 99%

“…The n depicts the turns ratio of the transformers and coupled inductors. To achieve a higher step‐down ratio, the proposed IBC does not require any transformer or coupled inductor [13, 16]. The proposed IBC has higher step‐down conversion ratio than the existing IBCs [11–13, 16].…”

Section: Experimental Setup and Resultsmentioning

confidence: 99%

“…Though the converter achieves a larger step-down ratio, the requirements of the inductor are so high that it makes the circuit complex, bulky and costly. With a soft-switching technique, an IBC is presented in [16]. The voltage conversion ratio depends upon the turns ratio of the transformer and does not achieve a high step-down conversion ratio.…”

Section: Introductionmentioning

confidence: 99%

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Two‐phase high efficiency interleaved buck converter with improved step‐down conversion ratio and low voltage stress

Biswas

Majhi

Nemade

2019

IET Power Electronics

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A two-phase interleaved buck converter (IBC) providing a high step-down conversion ratio is proposed in this study. The proposed IBC uses a switch-capacitor cell to achieve a high step-down conversion ratio compared to the conventional IBC. The cell consists of two parallel switches and two crossly placed identical capacitors. These identical capacitors are charged in series and discharged in parallel by producing a lower output voltage compared to the conventional IBC at the same duty ratio. The proposed converter provides less voltage and current stresses. The operation principle, the ripple and the average current through the inductors are described in continuous conduction mode. The boundary load condition is also determined. By describing the charging and discharging of the two identical capacitors of the cell, the capacitance value is determined. The losses and efficiency are analysed, and 96.33% efficiency is achieved. Finally, the proposed converter is implemented and experimental results are provided.

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Section: Experimental Setup and Resultsmentioning

confidence: 99%

Section: Experimental Setup and Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Two‐phase high efficiency interleaved buck converter with improved step‐down conversion ratio and low voltage stress

Biswas

Majhi

Nemade

2019

IET Power Electronics

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“…The RCD snubber is simple, but the power stored in snubber capacitor dissipates on the resistor and the switch turns off at hard-switching, thus the overall efficiency of converter is still low. In order to decrease the switching losses and absorb the voltage spikes while reducing the converter losses, active snubber and clamps are applied to dc-dc forward converters [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…The forward converters with the zero-voltage switching (ZVS) technique have been presented in [8][9][10][11][12]. However, the main drawbacks of these schemes are the complex control approach and too many power switches in the circuit.…”

Section: Introductionmentioning

confidence: 99%

Analysis, design and implementation of an improved two‐switch zero‐current zero‐voltage pulse‐width modulation forward converter

Soltanzadeh¹,

Dehghani²,

Khalilian³

2014

IET Power Electronics

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In this study, an improved two-switch zero-current zero-voltage switching pulse-width modulation (ZCZVS-PWM) forward converter, which employs a simple resonant lossless snubber circuit, is introduced. A simple resonant snubber circuit consists of a capacitor, an inductor and two diodes. In proposed converter, switch Q 1 operates under exactly zero-current switching at turn-on, and exactly zero-voltage switching (ZVS) at turn-off, and switch Q 2 operates under exactly ZCZVS at turn-on, and ZVS at turn-off, and the all-passive semiconductor devices operate under soft-switching at turn-on and turn-off. The proposed converter has no current and voltage spikes in the switches in comparison with the hard-switching forward converter counterpart and is suitable for high switching frequency and high-power operation. The proposed converter is analysed and various operating modes of the improved two-switch ZCZVS-PWM forward converter are discussed. Analysis and design considerations are presented and the prototype experimental results of a 160 W (32 V/5 A) proposed converter operating at 300 kHz switching frequency, confirm the validity of theoretical analysis.

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DSP-based current sharing of average current controlled two-cell interleaved boost power factor correction converter

Genç

İskender

2011

IET Power Electron.

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Implementation of a ZVS interleaved converter with two transformers

Cited by 3 publications

References 7 publications

Two‐phase high efficiency interleaved buck converter with improved step‐down conversion ratio and low voltage stress

Two‐phase high efficiency interleaved buck converter with improved step‐down conversion ratio and low voltage stress

Analysis, design and implementation of an improved two‐switch zero‐current zero‐voltage pulse‐width modulation forward converter

DSP-based current sharing of average current controlled two-cell interleaved boost power factor correction converter

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