High step-up converter with passive lossless clamp circuit and switched-capacitor: Analysis, design, and experimentation

He, Liangzong; Lei, Jiazhi

doi:10.1109/apec.2013.6520581

Cited by 4 publications

(4 citation statements)

References 27 publications

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“…To simplify configurations and achieve high step-up voltage gain, three approaches have been presented [12][13][14][15][16][17][18]. One approach is switched-capacitor technique [12][13][14][15]. Although these converters can extend voltage gain and reduce the voltage stress of the semiconductor devices, its switches suffer from large pulsed current, which leads huge conducting losses.…”

Section: Introductionmentioning

confidence: 99%

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High step‐up DC–DC converter with switched‐capacitor and its zero‐voltage switching realisation

Zheng

2017

IET Power Electronics

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As generally acknowledged, the high step-up DC-DC converter is widely used in the sustainable energy system as the front-end stage of the DC-AC converter. Therefore, a novel high step-up DC-DC converter is proposed in this study. The proposed converter with network of switched-inductor and switched-capacitor can achieve high voltage gain under low duty cycle. Meanwhile, the active switches and diodes suffer from low voltage stress. More importantly, an auxiliary resonant circuit with lower losses and cost is employed to realise zero-voltage switching (ZVS) turned-on and ZVS turned-off for the active switches, resulting in high conversion efficiency. Firstly, the operation principle and steady-state performance are discussed in detail. Then, prototype with power rating of 200 W is built to verify the performance of the proposed converter. The maximum efficiency of the prototype can be up to 96%, and the experimental results agree with the theoretical analysis and the simulation results well.

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Section: Introductionmentioning

confidence: 99%

“…To simplify configurations and achieve high step‐up voltage gain, three approaches have been presented [12–18]. One approach is switched‐capacitor technique [12–15].…”

Section: Introductionmentioning

confidence: 99%

High step‐up DC–DC converter with switched‐capacitor and its zero‐voltage switching realisation

Zheng

2017

IET Power Electronics

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“…To improve the efficiency of DC-DC converters and reduce switching losses, different soft-switching methods are introduced including lossless snubbers [17][18][19], active clamp circuits [20][21][22][23], zero voltage/zero current transition (ZVT/ZCT) methods [10,[13][14][15] and resonant converters [24,25]. Among these methods, ZVT converters benefit from load-independent soft-switching condition.…”

Section: Introductionmentioning

confidence: 99%

“…In [16][17][18][19], interleaved converters employing lossless snubbers are proposed. In the lossless snubbers-based structures, the main switches turn on under ZCS condition, which has high capacitive turn-on loss (E oss ).…”

Section: Introductionmentioning

confidence: 99%

Soft‐switching non‐isolated high step‐up three‐level boost converter using single magnetic element

Jazi

Fekri

Keshani

et al. 2021

IET Power Electronics

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Here, a soft switched three-level boost converter with high voltage gain is proposed which is suitable for high step-up applications with wide output power range. In this converter, a ZVT auxiliary circuit is used which provides soft switching in a wide range of output power independent of load variation. Utilizing coupled-inductors with one magnetic core removes extra auxiliary core in the soft switching circuit and provides high voltage gain in conjunction with size reduction. Also, the secondary and tertiary leakage inductances of the coupled-inductors minimize the reverse recovery problem of the output diodes. Due to its three-level structure, it has very low voltage stress over semiconductor elements in comparison to the existing interleaved structures, resulting in using MOSFETs with low on-resistance and thus lower conduction losses and cost. Operating modes as well as analytical analysis of the proposed converter are discussed. Finally, in order to validate the proposed converter performance, experimental results from a 200-W laboratory prototype are presented.How to cite this article: Jazi, H.M., Fekri, M., Keshani, M., et al.: Soft-switching non-isolated high step-up three-level boost converter using single magnetic element.

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An Advanced Current-Auto-Balance High-Step-Up Converter with a Multi-Coupled Inductor and Voltage Multiplier for a Renewable Power Generation System

Liao

2015

IEEE Trans. Power Electron.

105

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High step-up converter with passive lossless clamp circuit and switched-capacitor: Analysis, design, and experimentation

Cited by 4 publications

References 27 publications

High step‐up DC–DC converter with switched‐capacitor and its zero‐voltage switching realisation

High step‐up DC–DC converter with switched‐capacitor and its zero‐voltage switching realisation

Soft‐switching non‐isolated high step‐up three‐level boost converter using single magnetic element

An Advanced Current-Auto-Balance High-Step-Up Converter with a Multi-Coupled Inductor and Voltage Multiplier for a Renewable Power Generation System

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