Journal ArticleDOI
Nonisolated High-Step-Up DC–DC Converter Derived from Switched-Inductors and Switched-Capacitors
TLDR
The principle of operation, theoretical analysis, design methodology, and a comparison of the proposed topology regarding other converters from the literature that use similar principles are approached.Abstract:
A new nonisolated high-step-up dc–dc converter based on active switched-inductors and passive switched-capacitors is proposed in this article. The main advantages of the converter are the high voltage gain (higher than 20), high efficiency, reduced voltage stresses, and reduced component count. This article approaches the principle of operation, theoretical analysis, design methodology, and a comparison of the proposed topology regarding other converters from the literature that use similar principles. Finally, the theoretical study is verified from a 200-W prototype designed to accomplish an input voltage of 20 V and an output voltage of 300 V, in which a peak efficiency of 96.2% is reached.read more
Citations
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Journal ArticleDOI
A High Step-Up Nonisolated DC–DC Converter With Flexible Voltage Gain
Vafa Marzang,Seyed Hossein Hosseini,Naghi Rostami,Peyman Alavi,Parham Mohseni,Seyed Majid Hashemzadeh +5 more
TL;DR: In this paper, a high step-up non-isolated dc-dc converter is proposed to provide high voltage gain with low voltage stress on semiconductors, which can provide constant output voltages with a reasonable range of voltage stress.
Journal ArticleDOI
Hybrid High Voltage Gain Transformerless DC–DC Converter
TL;DR: In this paper , a hybrid transformerless high voltage gain dc-dc converter was created by merging a two-inductor boost converter with voltage multiplier and switched capacitor cells, which reached a maximum efficiency of 98.24%.
Journal ArticleDOI
Family of Transformerless Active Switched Inductor and Switched Capacitor Ćuk DC–DC Converter for High Voltage Gain Applications
António Manuel Santos Spencer Andrade,Tiago Miguel Klein Faistel,Ademir Toebe,Ronaldo Antonio Guisso +3 more
TL;DR: In this article, a family of transformerless active switched inductor and switched capacitor Cuk high voltage gain dc-dc converters is presented, which has the advantages of nonpulsating output current, high step-up voltage gain, low voltage, and current stress across the component.
Journal ArticleDOI
High step-up dc–dc converter based on modified active switched-inductor and switched-capacitor cells
TL;DR: In this article, a new high gain step-up dc-dc converter based on modified active switched-inductor (MASL) and switched-capacitor (SC) is proposed.
Journal ArticleDOI
Switched-Capacitor High Voltage Gain Z-Source Converter With Common Ground and Reduced Passive Component
Jiawei Zhao,Daolian Chen +1 more
TL;DR: In this paper, a novel Z-source based dc-dc boost converter with high step-up capability and low device voltage stress is proposed, which can achieve higher voltage gain under the same duty ratio and maintain low voltage stresses on the switch and diode.
References
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Journal ArticleDOI
Switched-Capacitor/Switched-Inductor Structures for Getting Transformerless Hybrid DC–DC PWM Converters
TL;DR: The superiority of the new, hybrid converters is mainly based on less energy in the magnetic field, leading to saving in the size and cost of the inductors, and less current stresses in the switching elements, lead to smaller conduction losses.
Journal ArticleDOI
Review of Nonisolated High-Step-Up DC/DC Converters in Photovoltaic Grid-Connected Applications
Wuhua Li,Xiangning He +1 more
TL;DR: A general conceptual circuit for high-step-up, low-cost, and high-efficiency dc/dc conversion is proposed to derive the next-generation topologies for the PV grid-connected power system.
Journal ArticleDOI
High-efficiency, high step-up DC-DC converters
Qun Zhao,Fred C. Lee +1 more
TL;DR: In this article, a family of high-efficiency, high step-up DC-DC converters with simple topologies is proposed, which use diodes and coupled windings instead of active switches to realize functions similar to those of active clamps.
Journal ArticleDOI
Transformerless DC–DC Converters With High Step-Up Voltage Gain
TL;DR: This paper proposes transformerless dc-dc converters to achieve high step-up voltage gain without an extremely high duty ratio and develops a prototype circuit to verify the performance.
Journal ArticleDOI
A DC-DC multilevel boost converter
TL;DR: A DC-DC converter topology is proposed, which combines the boost converter and the switched capacitor function to provide different output voltages and a self-balanced voltage using only one driven switch, one inductor, 2 diodes and 2 capacitors for an Nx MBC.
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