Active-clamp ZVS converter with step-up voltage conversion ratio

Lin, Bor‐Ren; Dong, Jia-Yu; Chen, Jyun-Ji

doi:10.1080/00207210802696142

Cited by 12 publications

(4 citation statements)

References 6 publications

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“…Output voltage gain is achieved in (8). The proposed converter has a considerable gain, comparing with other multiple input converters as proposed in [31], where the output voltage is the summation of its multiple input levels.…”

Section: Steady-state Analysismentioning

confidence: 90%

“…Several types of DC/DC converters such as tapped inductors, coupled inductors, quadratic, cascaded converters, multi-port and so on, are suggested. Isolated converters like secondary-series boost converters [5,6], voltage-lift techniques [7,8] and boost-type converters integrated with transformer [9,10], those with coupled inductors, such as flyback or isolation Sepic converters can obtain high conversion ratio. However, the leakage energy lowers the conversion efficiency, induces high-voltage stress and switching losses and also increases electromagnetic interference (EMI) problems.…”

Section: Introductionmentioning

confidence: 99%

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Non‐isolated multi‐input–single‐output DC/DC converter for photovoltaic power generation systems

Banaei

Ardi

Alizadeh

et al. 2014

IET Power Electronics

196

143

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A new multi-input non-isolated DC/DC converter with high-voltage transfer gain is proposed in this study. The presented converter consists of the conventional buck-boost and boost converters. All the stages except the last stage are buck-boost converters. The last stage is the conventional boost converter. The proposed multi-input high-voltage gain converter benefits from various advantages such as reduced semiconductor current stress, no limitation for switching duty cycle and wide control range of different input powers. The presented converter can even operate when one or some power input fail to provide energy to the load. The steady-state operation and dynamic modelling of the suggested converter are analysed thoroughly. Experimental results are also provided to verify the feasibility of the presented converter.

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Section: Steady-state Analysismentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Non‐isolated multi‐input–single‐output DC/DC converter for photovoltaic power generation systems

Banaei

Ardi

Alizadeh

et al. 2014

IET Power Electronics

196

143

View full text Add to dashboard Cite

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“…After , assuming the resonant in time interval 6 cannot cause condition described in equation (14) happen again, the capacitor C1 will stop resonant and keep a constant value. D1 and D2 are both blocked.…”

Section: ) Time Interval 7[t6~t7]mentioning

confidence: 98%

“…To cope with the leakage problem, conversional RCD snubber, energy regenerative snubber [11] [13] or the active clamp method [14] were commonly used as typical solutions. A new configuration organically integrated the snubber with the main circuit was reported in paper [15], which realized leakage energy recycling and voltage clamp by operation of two symmetrical active switches at the primary side.…”

Section: Introductionmentioning

confidence: 99%

A new Isolated Hybrid Boosting Converter

Smedley

2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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A new Isolated Hybrid Boosting Converter (IHBC) is proposed in this paper. It employs fly-back structure at primary side of transformer and a Bipolar Voltage Multiplier (BVM) structure at secondary side to increase the voltage gain. The circuit alternates between forward and fly-back modes, which avoids the use of magnetic reset winding. The proposed converter has symmetrical configuration with interleaving capability at secondary side. Due to the cascading flying capacitors, the high voltage rating output filter capacitor which exists in most of other converters can be eliminated. In addition, an energy regenerative snubber is utilized to recycle the leakage energy at primary side. A 200W prototype that converts 35V to 400V was built and efficiency of 91.2% was achieved at rated power. The simulation and experimental results both verified the feasibility of proposed converter.

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