Modelling and analysis of switch-mode cascade converters with a single active switch

Pereira

2014 11th IEEE/IAS International Conference on Industry Applications

et al. 2014

High voltage step-up is necessary in several applications, especially considering that dc-ac converters must be supplied by high dc voltages. The conventional boost converter is the most popular topology for this purpose, although the conversion efficiency is limited at high duty cycle values. In order to overcome such limitation and improve the conversion ratio, many converter topologies have been proposed so far. Within this context, this work intends to review some of the most important works regarding boost-based dc-dc converters. Some structures are covered and classified basically as converters with and without wide conversion ratio. Some of the main advantages and drawbacks regarding the existing approaches are also discussed. Finally, a proper comparison is established among the most significant converters regarding the voltage stress across the semiconductor elements, number of components, and static gain.

Section: ) Cascaded Boost Convertersmentioning

confidence: 99%

An extensive review of nonisolated DC-DC boost-based converters

Pereira

2014 11th IEEE/IAS International Conference on Industry Applications

et al. 2014

Journal of Electrical Engineering and Technology

“…one power switch per one boost stage, and suffers from low overall efficiency when a number of the boost stage is increased. In [7][8][9][10], an N-stage cascade boost converter with one active switch is proposed. It uses only one power switch and has the same voltage gain as the N boost converters connected in series.…”

Section: Introductionmentioning

confidence: 99%

A Novel Clamp-Mode Coupled-Inductor Boost Converter with High Step-Up Voltage Gain

Tattiwong¹,

Bunlaksananusorn²

2017

-In this paper, a new coupled inductor DC-DC converter with a high step-up voltage gain is proposed. It is developed from a clamp-mode coupled-inductor boost converter by incorporating an additional capacitor and diode. The proposed converter is able to achieve the higher voltage gain, while still retaining the switch voltage clamp property of its predecessor. In the paper, operation and analysis of the proposed converter are described. Experimental results from a prototype converter are presented to verify the validity of the analysis. The prototype circuit attains the highest efficiency of 92.8%.

TENCON 2014 - 2014 IEEE Region 10 Conference

“…one power switch per one boost stage) and suffers from low overall efficiency as a number of the cascaded stages increases. In [5], an N-stage cascade boost converter with one active switch is proposed. It has the same voltage gain as the series connection of N boost converter stages, but uses only one power switch.…”

Section: Introductionmentioning

confidence: 99%

Analysis design and experimental verification of a quadratic boost converter

Tattiwong

Bunlaksananusorn

2014

This paper presents analysis, design and experimentation of a Quadratic Boost Converter (QBC). Operation of the QBC is analyzed, leading to mathematical expressions that can be used to design the converter. Based on the derived analytical expressions, a 100W, 12V-to-48V, QBC converter is designed and built. Experiment shows that the prototyped converter operates satisfactorily throughout its operating range and achieves the highest efficiency of 83%.