Results 261 to 270 of about 33,313 (293)

High voltage gain boost converter based on three-state switching cell and voltage multipliers

2008 34th Annual Conference of IEEE Industrial Electronics, 2008
A new type of non-isolated step-up converter with high voltage gain is proposed on this work. It is suitable for applications with a high voltage gain between the input and the output stages. In this converter, the output to input voltage ratio, for a given duty cycle, can be raised by adding voltage multiplier stages of capacitors (mc).The theoretical
Y.J.A. Alcazar, R.T. Bascope, D.S. de Oliveira, E.H.P. Andrade, W.G. Cardenas   +4 more
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Double‐Switch Series‐Resonant Cell‐Voltage Equalizer Using a Voltage Multiplier for Series‐Connected Energy Storage Cells

Electrical Engineering in Japan, 2014
SUMMARYSeries connections of energy storage cells, such as lithium‐ion cells and electric double‐layer capacitors (EDLCs), require cell‐voltage equalizers to ensure years of operation. Conventional equalizers require multiple switches, magnetic components, and/or secondary windings of a multiwinding transformer in proportion to the number of series ...
Masatoshi Uno, Akio Kukita
openaire   +1 more source

High-Voltage Step-Up DC-DC Converter Employing The Four State Switching Cell and Voltage Multiplier Cells

2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC), 2019
Distinct modern applications require wide voltage conversion range, e.g., renewable energy systems, uninterruptible power supplies (UPS), among others. However, this requirement brings some problems associated with the power converters used for this purpose, mainly related to the system efficiency, stresses on the semiconductor devices, and component ...
Paulo Henrique Feretti, Enio Roberto Ribeiro, Fernando Lessa Tofoli   +2 more
openaire   +1 more source

Bidirectional PWM Converter Integrating Cell Voltage Equalizer Using Series-Resonant Voltage Multiplier for Series-Connected Energy Storage Cells

IEEE Transactions on Power Electronics, 2015
In conventional energy storage systems using series-connected energy storage cells such as lithium-ion battery cells and supercapacitors (SCs), an interface bidirectional converter and cell voltage equalizer are separately required to manage charging/discharging and ensure years of safe operation.
Masatoshi Uno, Akio Kukita
openaire   +1 more source

Step-up converter with high voltage gain employing three-state switching cell and voltage multiplier

2008 IEEE Power Electronics Specialists Conference, 2008
This work proposes a new non-isolated DC-DC converter with high voltage gain using a three-state switching cell and voltage multiplier stages based on capacitors. The value of the gain can be modified depending on the requirements of the application by means of the number of multiplier stages and the duty cycle.
S.V. Araujo, R. P. T. Bascope, G. V. T. Bascope, L. Menezes   +3 more
openaire   +1 more source

Transformer-less bidirectional PWM converter integrating cell voltage equalizer using voltage multiplier for series connected energy storage cells

2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia), 2017
Traditional energy storage systems consisting of lithium-ion battery cells or electric double-layer capacitors (EDLCs) connected in series require a cell voltage equalizer in addition to a bidirectional PWM converter. The system is prone to complexity as two converters (i.e., the equalizer and bidirectional converter) are separately necessary.
Kazuki Yashiro, Masatoshi Uno
openaire   +1 more source

Comparative Analysis of Voltage Multiplier Cell Based Non-Isolated Step-Up Converters

2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2020
High gain dc-dc converters are widely employed in applications like electric vehicles and renewable energy systems; among them, cost-effective voltage multiplier cell (VMC) based converters are popular. This paper aims to compare the VMC based converters having the gain more than classical boost type converter in terms of various performance indices ...
SVK Naresh, Sankar Peddapati
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The folded Gilbert cell: a low voltage high performance CMOS multiplier

[1992] Proceedings of the 35th Midwest Symposium on Circuits and Systems, 2003
Three linearity-improved implementations of a Gilbert cell in CMOS technology are presented. They have low voltage supply requirements and wide input signal ranges on both inputs. Experimental results of a CMOS test chip are presented. The utilization of the cell as a very wide tuning range linear transconductor is discussed. >
J. Ramirez-Angulo, S. Ming-Shen
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Analysis and Design of Isolated SEPIC Converter with Greinacher Voltage Multiplier Cell

Anais do Congresso Brasileiro de Automática 2020, 2020
High step-up converters are required and used in photovoltaic applications, due to low voltage of photovoltaic modules. In this paper, an isolated dc-dc high step-up SEPIC with a Greinacher voltage doubler cell is presented. It has the advantage of continuous input current, high efficiency, high voltage gain, isolation and demands a single switch ...
Bernardo Andres, Leonardo Romitti, Fabrício Hoff Dupont, Leandro Roggia, Luciano Schuch   +4 more
openaire   +1 more source

Reduced order model of the boost converter with voltage multiplier cell

XI Brazilian Power Electronics Conference, 2011
The boost converter with voltage multiplier cell allows the extension of static gain by means of the switching capacitor technique, reducing the duty cycle needed to achieve the same voltage gain when compared to the conventional boost converter. However, the modeling of this converter is complex and requires the use of advanced techniques due to the ...
Fabricio Hoff Dupont, Cassiano Rech, Roger Gules, Jose Renes Pinheiro   +3 more
openaire   +1 more source