Analysis of Current Mode in High Power Density Boost Converters with Magnetic Coupling

2016 ◽  
Vol 136 (10) ◽  
pp. 778-783
Author(s):  
Yasuo Sasaki ◽  
Yusuke Sugihara ◽  
Kimihiro Nanamori ◽  
Masayoshi Yamamoto
Keyword(s):  
Power Density ◽  
High Power ◽  
Magnetic Coupling ◽  
Current Mode ◽  
High Power Density ◽  
Boost Converters

An Investigation of Size-Reduction Effects in High Power Density Boost Converters with a Magnetic Coupling

2016 ◽  
Vol 197 (1) ◽  
pp. 35-45
Author(s):  
SHOGO AOTO ◽  
SHOTA KIMURA ◽  
JUN IMAOKA ◽  
MASAYOSHI YAMAMOTO
Keyword(s):  
Power Density ◽  
High Power ◽  
Magnetic Coupling ◽  
Size Reduction ◽  
High Power Density ◽  
Boost Converters

scholarly journals Interleaved, Switched Inductor and High-Gain Wide Bandgap Based Boost Converter Proposal

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 800
Author(s):  
David Marroqui ◽  
Ausias Garrigós ◽  
Cristian Torres ◽  
Carlos Orts ◽  
Jose M. Blanes ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
Low Voltage ◽  
High Gain ◽  
Wide Bandgap ◽  
High Power Density ◽  
Boost Converters ◽  
Proposal A ◽  
Current Ripples ◽  
Current Ripple

Many applications (electric vehicles, renewable energies, low-voltage DC grids) require simple, high-power density and low-current ripple-boost converters. Traditional step-up converters are limited when large transformation ratios are involved. In this work is proposed a step-up converter that brings together the characteristics of high gain, low ripple, and high-power density. From the converter proposal, a mathematical analysis of its operation is first performed, including its static transfer function, stress of components, and voltage and current ripples. Furthermore, it provides a design example for an application of Vin = 48 V to Vo = 270 V and 500 W. For its implementation, two different wide bandgap (WBG) semiconductor models have been used, hybrid GaN cascodes and SiC MOSFETs. Finally, the experimental results of the produced prototypes are shown, and the results are discussed.

Switched-Capacitorized DC/DC Converters

2013 ◽  
Vol 310 ◽  
pp. 453-465
Author(s):  
Fang Lin Luo
Keyword(s):  
Power Density ◽  
High Power ◽  
Current Mode ◽  
Input Current ◽  
Switched Capacitor ◽  
High Power Density ◽  
Stored Energy ◽  
Switched Capacitors ◽  
Conversion Operation ◽  
Source Voltage

Switched capacitor DC/DC converters are new prototype of DC/DC conversion technology. Since switched capacitor can be integrated into a power IC chip, consequently, these converters have small size and high power density. Switched capacitor can be used in voltage-lift technique to construct DC/DC converters. The clue is that for the converters operating in discontinuous input current mode (DICM) the switched capacitors can be charged during the input current discontinuous period. The switched capacitors are charged to the source voltage during the switch-off period. They will join the conversion operation during switch-on period, and the stored energy in them will be delivered through further elements to the load. These converters are called switched-capacitorized DC/DC converters. Simulation and experimental results are provided for verification of this design.

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