Low-voltage alternating current powered polydopamine-protected copper phosphide nanowire for electroporation-disinfection in water

2019 ◽  
Vol 7 (13) ◽  
pp. 7347-7354 ◽  
Author(s):  
Zheng-Yang Huo ◽  
Hai Liu ◽  
Wen-Long Wang ◽  
Yun-Hong Wang ◽  
Yin-Hu Wu ◽  
...  
Keyword(s):  
High Frequency ◽  
High Efficiency ◽  
Low Voltage ◽  
Alternating Current ◽  
Continuous Operation ◽  
Copper Phosphide ◽  
High Frequency Ac

Powered by high-frequency AC, PDA-Cu3PNW-Cu electrodes enable complete microorganism disinfection in water with high efficiency for a 15 day continuous operation.

High-frequency drive of high-Xe-content PDPs for high efficiency and low-voltage performance

2004 ◽  
Vol 12 (2) ◽  
pp. 191 ◽  
Author(s):  
Tetsuo Minami ◽  
Tomokazu Shiga ◽  
Shigeo Mikoshiba ◽  
Gerrit Oversluizen
Keyword(s):  
High Frequency ◽  
High Efficiency ◽  
Low Voltage ◽  
Voltage Performance

Design of a High Efficiency Fuel Cell dc/dc Converter Dedicated to Transportation Applications

2008 ◽  
Vol 5 (4) ◽  
Author(s):  
Abdellah Narjiss ◽  
Daniel Depernet ◽  
Frédéric Gustin ◽  
Daniel Hissel ◽  
Alain Berthon
Keyword(s):  
Fuel Cell ◽  
Embedded System ◽  
Digital Signal Processor ◽  
High Frequency ◽  
High Efficiency ◽  
Low Voltage ◽  
Electrical Power ◽  
Digital Signal ◽  
Polymer Electrolyte Fuel Cell ◽  
High Frequency Transformer

This work consists in a theoretical and practical study of a dc/dc converter designed to be coupled to a fuel cell stack in transport applications. It also proposes analysis and control of the whole system using digital signal processor (DSP) controller. The research is focused on the integration of a polymer electrolyte fuel cell (PEFC) stack in an embedded system. The fuel cell is characterized by a low-voltage high-current electrical power deliverty. Therefore, it is obvious that a dedicated power interface is necessary to adapt and fix voltage and current levels accordingly to the application requirements. In our case, the power conversion will be done by a high-frequency-transformer-based DC/DC converter. The use of a high frequency transformer allows obtaining significant output voltage ratio (approximately 12 in our case), high efficiency, reduce compactness of used elements and limited semi-conductors losses.

scholarly journals A Comparative Analysis of Half-Bridge LLC Resonant Converters Using Si and SiC MOSFETs

2021 ◽  
Vol 12 (1) ◽  
pp. 43
Author(s):  
Hasaan Farooq ◽  
Hassan Abdullah Khalid ◽  
Waleed Ali ◽  
Ismail Shahid
Keyword(s):  
Silicon Carbide ◽  
Renewable Energy ◽  
High Frequency ◽  
High Efficiency ◽  
Low Voltage ◽  
Low Cost ◽  
Renewable Energy Sources ◽  
Input Voltage ◽  
Resonant Converters ◽  
Wide Range

With the expansion of renewable energy sources worldwide, the need for developing more economical and more efficient converters that can operate on a high frequency with minimal switching and conduction losses has been increased. In power electronic converters, achieving high efficiency is one of the most challenging targets to achieve. The utilization of wideband switches can achieve this goal but add additional cost to the system. LLC resonant converters are widely used in different applications of renewable energy systems, i.e., PV, wind, hydro and geothermal, etc. This type of converter has more benefits than the other converters such as high electrical isolation, high power density, low EMI, and high efficiency. In this paper, a comparison between silicon carbide (SiC) MOSFET and silicon (Si) MOSFET switches was made, by considering a 3KW half-bridge LLC converter with a wide range of input voltage. The switching losses and conduction losses were analyzed through mathematical calculations, and their authenticity was validated with the help of software simulations in PSIM. The results show that silicon carbide (SiC) MOSFETs can work more efficiently, as compared with silicon (Si) MOSFETs in high-frequency power applications. However, in low-voltage and low-power applications, Si MOSFETs are still preferable due to their low-cost advantage.

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