A High Step-Up DC–DC Converter With Switched-Capacitor and Coupled-Inductor Techniques

Zhang, Min; Wei, Zhengyi; Zhou, Mingzhu; Wang, Fenglian; Cao, Yichang; Quan, Limin

doi:10.1109/jestie.2022.3173909

Cited by 22 publications

(19 citation statements)

References 33 publications

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“…Figure 8a shows the voltage gain of the competitors versus duty cycle. It is clear that the proposed converter achieves the highest voltage gain of almost all of the competitors except [29] and [38]. However, the voltage gain in [38] is sharply increased which makes the control of the output voltage more complex.…”

Section: Performance Comparisonmentioning

confidence: 99%

“…However, the voltage gain in [38] is sharply increased which makes the control of the output voltage more complex. Moreover, the conversion efficiencies of [29] and [38] are lower in comparison with the proposed converter. On the other hand, it is clear that among dual switches converters (see continuous lines), the proposed converter has the highest voltage gain of all.…”

Section: Performance Comparisonmentioning

confidence: 99%

“…Figure 8c demonstrates the comparison of the normalized voltage stresses across the MOSFETs. It is seen that a much lower voltage stress is imposed across the switches in the proposed converter and converter of [29] in comparison with the other converters. Therefore, low ON‐state resistance MOSFET such as CDS19506KS (80 V,20 mΩ) could be implemented to reduce the conduction losses and to improve the performance operation.…”

Section: Performance Comparisonmentioning

confidence: 99%

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A dual switches high step‐up DC–DC converter with low voltage stresses across switches

Radmehr

Nouri

Shaneh

2022

IET Renewable Power Gen

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A dual switches high step-up DC-DC converter with coupled inductor (CI) and voltage multiplier cell (VMC) is proposed in this paper. The gate pulses of the switches are synchronized with each other. During ON state of the switches, the CIs are charged in parallel through the input power source and during OFF state of the switches, they are discharged to the output in series. The energy of the leakage inductances is recycled by the passive clamp circuit. The passive clamp circuit for one of the metaloxidesemiconductor fieldeffect transistor (MOSFETs) is integrated with the VMC. In such a case, the clamp circuit participates in voltage gain extension which facilitates the utilization of lower number of the components, as well. Meanwhile, the MOSFETs and diodes are turned ON and turned OFF with zero current switching (ZCS) performance which reduces the switching losses. Through the dual switches concept and implementation of the CI VMC, the advantages such as high voltage gain, low voltage stresses across switches and distributed current stresses between MOSFETs are achieved. The steady-state analysis of the proposed converter is provided which is followed by a comparison with some published converters. Finally, a 300 W 25V to 400 V laboratory prototype is fabricated and tested to verify the performances.

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Section: Performance Comparisonmentioning

confidence: 99%

Section: Performance Comparisonmentioning

confidence: 99%

Section: Performance Comparisonmentioning

confidence: 99%

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A dual switches high step‐up DC–DC converter with low voltage stresses across switches

Radmehr

Nouri

Shaneh

2022

IET Renewable Power Gen

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“…Switched capacitor-based boost topologies are another versatile class of high gain dc to dc converters [11,12]. This method can increase voltage gain at a moderate duty cycle without employing magnetic elements.…”

Section: Introductionmentioning

confidence: 99%

“…The minimal input current rippling is one of the benefits of this class of converters. Furthermore, [26][27][28] introduces different kinds of single-MOSFET step-up topologies with regeneration passive clamp circuit. The primary power MOSFET in such converters is operated under ZCS conditions and low voltage stress.…”

Section: Introductionmentioning

confidence: 99%

A High Step-Up Cost Effective DC-to-DC Topology Based on Three-Winding Coupled-Inductor

Farsijani

Abbasian

Hafezi

et al. 2023

IEEE J. Emerg. Sel. Top. Ind. Electron.

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Owing to the low voltage level that renewable energy sources like solar panels frequently provide, and limited capability of simple Boost converter, need for high gain step-up dc to dc converters are increased. In this work a single switch high step-up dc to dc topology with high efficiency is developed. To obtain high voltage gain, the described step-up dc to dc topology employs three windings coupled inductor and voltage multiplier cell method. To get the high voltage gain, this innovative converter does not require to work at a high duty cycle state by increasing the turns ratio of the coupled inductor. The suggested converter's working modes and theoretical model are investigated, and lastly, a prototype setup is used to verify the theoretical and simulation analyses' correctness.

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Hybrid interleaved DC‐DC step‐up converter based on coupled inductor

Alizadeh,

Babaei,

Sabahi

et al. 2023

Circuit Theory & Apps

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SummaryIn this paper, a high voltage gain hybrid interleaved DC‐DC converter (HIC) with quadratic voltage gain is proposed that is suitable for renewable energy systems. The hybrid technique is used in this converter to increase the output voltage. The proposed DC‐DC converter utilizes the interleaved boost converter on the input side, and the input current is shared with a low ripple that lengthens the lifetime of the renewable power source. In addition, the proposed converter has low voltage stress across the components that can be adopted to reduce conduction losses and the cost of the elements. In addition, the proposed converter share ground between the input and output and has high efficiency. The operation modes of the proposed converter are analyzed, and its equations are calculated. Then, the elements of the proposed converter are designed in continuous conduction mode. A comprehensive comparison of the proposed converter with other recently presented existing converters is discussed to show the advantages and disadvantages of the proposed structure. Finally, to verify the performance of the proposed converter and the obtained relations, a 400 W prototype is built to demonstrate the effectiveness of the proposed converter.

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A High Step-Up DC–DC Converter With Switched-Capacitor and Coupled-Inductor Techniques

Cited by 22 publications

References 33 publications

A dual switches high step‐up DC–DC converter with low voltage stresses across switches

A dual switches high step‐up DC–DC converter with low voltage stresses across switches

A High Step-Up Cost Effective DC-to-DC Topology Based on Three-Winding Coupled-Inductor

Hybrid interleaved DC‐DC step‐up converter based on coupled inductor

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