scholarly journals Single Inductor-Multiple Output DPWM DC-DC Boost Converter with a High Efficiency and Small Area

Energies ◽  
2018 ◽  
Vol 11 (4) ◽  
pp. 725 ◽  
Author(s):  
Young Park ◽  
Zaffar Khan ◽  
Seong Oh ◽  
Byeong Jang ◽  
Nabeel Ahmad ◽  
...  
Keyword(s):  
Small Area ◽  
High Efficiency ◽  
Boost Converter

A SIMO DC-DC boost converter with high efficiency and small area

2018 ◽  
Author(s):  
Zaffar Hayat Nawaz Khan ◽  
Nabeel Ahmad ◽  
Danial Khan ◽  
Hamed Abbasizadeh ◽  
Syed Adii Ali Shah ◽  
...  
Keyword(s):  
Small Area ◽  
High Efficiency ◽  
Boost Converter

scholarly journals High gain boost converter with modified voltage multiplier for stand alone PV system

2019 ◽  
Vol 14 (1) ◽  
pp. 185
Author(s):  
Getzial Anbu Mani ◽  
A. K. Parvathy
Keyword(s):  
High Efficiency ◽  
Input Voltage ◽  
High Gain ◽  
Boost Converter ◽  
Pv System ◽  
Boost Converters ◽  
Low Input ◽  
Voltage Multiplier ◽  
Photo Voltaic ◽  
Current Ripple

<p>Boost converters of high gain are used for photo voltaic systems to obtain high efficiency. These high gain Boost converters gives increased output voltage for a low input produces high outputs for low input voltage. The High gain boost converters have the following merits. Conduction losses input current ripple and stress across the switches is reduced while the efficiency is increases. The high gain of the converters with the above said merits is obtained by changing the duty cycle of switches accordingly .In this paper a boost converter working with interleaved concept along with a additional Nstage voltage Multiplier has been carried out by simulation using MATLAB/ simulink and the mathematical modeling of various parameters is also done.</p>

scholarly journals High Efficiency Buck-Boost Converter with Three Modes Selection for HV Applications using 0.18 μm Technology

2020 ◽  
Vol 18 (2) ◽  
pp. 137-144
Author(s):  
Fouad Farah ◽  
Mustapha El Alaoui ◽  
Abdelali El Boutahiri ◽  
Mounir Ouremchi ◽  
Karim El Khadiri ◽  
...  
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Output Voltage ◽  
High Efficiency ◽  
Power Conversion ◽  
Boost Converter ◽  
Current Control ◽  
Voltage Range ◽  
Operating Modes ◽  
Soft Start

In this paper, we aim to make a detailed study on the evaluation and the characteristics of the non-inverting buck–boost converter. In order to improve the behaviour of the buck-boost converter for the three operating modes, we propose an architecture based on peak current-control. Using a three modes selection circuit and a soft start circuit, this converter is able to expand the power conversion efficiency and reduce inrush current at the feedback loop. The proposed converter is designed to operate with a variable output voltage. In addition, we use LDMOS transistors with low on-resistance, which are adequate for HV applications. The obtained results show that the proposed buck-boost converter perform perfectly compared to others architecture and it is successfully implemented using 0.18 μm CMOS TSMC technology, with an output voltage regulated to 12V and input voltage range of 4-20 V. The power conversion efficiency for the three operating modes buck, boost and buck-boost are 97.6%, 96.3% and 95.5% respectively at load current of 4A.

Modeling and stability study of a high frequency and high efficiency photovoltaic DC boost converter

2020 ◽  
Vol 20 (3) ◽  
pp. 817-826
Author(s):  
Shengshan Li ◽  
Ming Li ◽  
Liangliang Liu
Keyword(s):  
Power Generation ◽  
High Frequency ◽  
Output Voltage ◽  
High Efficiency ◽  
Boost Converter ◽  
Stability Study ◽  
Power Circuit ◽  
Point Tracking ◽  
Photovoltaic Power ◽  
Power Generation Systems

Many practical photovoltaic power generation systems with higher output voltage levels rely on photovoltaic DC boost converters with high frequency and high efficiency, which performance directly affect the conversion efficiency of photovoltaic power generation systems. This paper investigates a high-frequency and high-efficiency photovoltaic DC boost converter, which adopts the Boost full-bridge isolation circuit topology with active clamps. The conductance increment method is used as the maximum power point tracking algorithm. The small signal models of its power circuit and control circuit are established to obtain the system model and analyze its stability. The simulation results indicate that the ripple coefficient of output current is less than 3%, and the ripple coefficient of output voltage is less than 5%, which meets the stability requirements.

scholarly journals Fully Integrated Buck and Boost Converter as a High Efficiency, High-Power-Density Off-Line LED Driver

2020 ◽  
Vol 35 (11) ◽  
pp. 12238-12251
Author(s):  
Guirguis Z. Abdelmessih ◽  
J. Marcos Alonso ◽  
Marco A. Dalla Costa ◽  
Yu-Jen Chen ◽  
Wen-Tien Tsai
Keyword(s):  
Power Density ◽  
High Power ◽  
High Efficiency ◽  
Boost Converter ◽  
High Power Density ◽  
Led Driver ◽  
Fully Integrated
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