A 140 mV Self-Starting 10 mW DC/DC Converter for Powering Low-Power Electronic Devices from Low-Voltage Microbial Fuel Cells

2012 ◽  
Vol 8 (4) ◽  
pp. 485-497 ◽  
Author(s):  
Nicolas Degrenne ◽  
Bruno Allard ◽  
François Buret ◽  
Salah-Eddine Adami ◽  
Denis Labrousse ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Low Power ◽  
Microbial Fuel Cells ◽  
Low Voltage ◽  
Electronic Devices ◽  
Power Electronic

Ultra-low power pH sensor powered by microbial fuel cells

2020 ◽  
Author(s):  
Nathaniel Brochu ◽  
Lingling Gong ◽  
Jesse Greener ◽  
Amine Miled
Keyword(s):  
Fuel Cells ◽  
Low Power ◽  
Microbial Fuel Cells ◽  
Ph Sensor ◽  
Ultra Low Power

Microbial fuel cells as a sustainable platform technology for bioenergy, biosensing, environmental monitoring, and other low power device applications

Fuel ◽  
2019 ◽  
Vol 255 ◽  
pp. 115682 ◽  
Author(s):  
Smita S. Kumar ◽  
Vivek Kumar ◽  
Ritesh Kumar ◽  
Sandeep K. Malyan ◽  
Arivalagan Pugazhendhi
Keyword(s):  
Fuel Cells ◽  
Low Power ◽  
Environmental Monitoring ◽  
Microbial Fuel Cells ◽  
Power Device ◽  
Platform Technology ◽  
Device Applications

scholarly journals Foreword Special Issue on Advanced Technology for Ultra-Low Power Electronic Devices

2016 ◽  
Vol 4 (5) ◽  
pp. 203-204
Author(s):  
Paul R. Berger ◽  
Albert Chin ◽  
Akira Nishiyama ◽  
Meikei Ieong
Keyword(s):  
Low Power ◽  
Electronic Devices ◽  
Advanced Technology ◽  
Power Electronic ◽  
Special Issue ◽  
Ultra Low Power

scholarly journals Фотовольтаические характеристики светодиодов с двумя последовательными p-n-переходами

2021 ◽  
Vol 47 (1) ◽  
pp. 47
Author(s):  
А.А. Соколовский ◽  
В.В. Моисеев
Keyword(s):  
Low Power ◽  
Spectral Range ◽  
High Power ◽  
Power Supply ◽  
Output Voltage ◽  
Optical Radiation ◽  
Electronic Devices ◽  
Power Electronic ◽  
Direct Power ◽  
Photovoltaic Characteristics

In this work, we investigated the photovoltaic characteristics of high-power IR LEDs manufactured by OSRAM GmbH based on structures with two vertically stacked p-n junctions. The spectral range of operation of PVTs based on LEDs with different radiation wavelengths was determined, and it was shown that the efficiency of photovoltaic conversion in them reaches more than 30% at a wavelength of 808 nm. The high (up to 2.6 V) output voltage of such converters allows them to be used for direct power supply of low-power electronic devices with optical radiation.

scholarly journals Application of a direct current circuit to pick up and to store bioelectricity produced by microbial fuel cells

2019 ◽  
Vol 48 (3) ◽  
pp. 26-35
Author(s):  
Daniel Gonzalo Arboleda Avilés ◽  
Oscar Fernando Núñez Barrionuevo ◽  
Omar Fernando Sánchez Olmedo ◽  
Billy Daniel Chinchin Piñan ◽  
Daniel Alexander Arboleda Briones ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Fuel Cells ◽  
Direct Current ◽  
Microbial Fuel Cells ◽  
Output Voltage ◽  
Low Voltage ◽  
Low Cost ◽  
Clean Energy ◽  
Maximum Power Density ◽  
Biochemical Reactors

Every year the demand for energy worldwide is increasing. There are some alternatives to reduce these problems, such as clean energy or renewable energy. A particular alternative is the microbial fuel cells. These cells are biochemical reactors that convert chemical energy into electricity. The present research evaluated the dairy serum to produce bioelectricity from micro fuel cells (MFC) that were constructed with low-cost materials and with isolated bacteria in anaerobic sediments, located in Ecuadorian national territory, producing maximum voltages of 0.830 V in the circuit and a maximum power density of 30mW / m2. This low voltage was worked with 50 mL MFCs and with an output voltage of 300 mV. Under these conditions, a FLYBACK lift circuit isolated by the transformer was designed. This new circuit could increase the voltage from 30 mV to enough voltage to light a 2.5 V LED. Therefore, the energy produced by the MFC can be directly used to light a LED and to charge capacitors. This study shows that these MFCs, together with the designed circuit, could be used potentially to generate clean energy.

scholarly journals Voltage control of magnetism in multiferroic heterostructures

2014 ◽  
Vol 372 (2009) ◽  
pp. 20120439 ◽  
Author(s):  
Ming Liu ◽  
Nian X. Sun
Keyword(s):  
Low Power ◽  
Communication Systems ◽  
Giant Magnetoresistance ◽  
Electronic Devices ◽  
Random Access ◽  
Microwave Devices ◽  
Power Electronic ◽  
Ultra Low Power ◽  
Multiferroic Heterostructures ◽  
Field Manipulation

Electrical tuning of magnetism is of great fundamental and technical importance for fast, compact and ultra-low power electronic devices. Multiferroics, simultaneously exhibiting ferroelectricity and ferromagnetism, have attracted much interest owing to the capability of controlling magnetism by an electric field through magnetoelectric (ME) coupling. In particular, strong strain-mediated ME interaction observed in layered multiferroic heterostructures makes it practically possible for realizing electrically reconfigurable microwave devices, ultra-low power electronics and magnetoelectric random access memories (MERAMs). In this review, we demonstrate this remarkable E-field manipulation of magnetism in various multiferroic composite systems, aiming at the creation of novel compact, lightweight, energy-efficient and tunable electronic and microwave devices. First of all, tunable microwave devices are demonstrated based on ferrite/ferroelectric and magnetic-metal/ferroelectric composites, showing giant ferromagnetic resonance (FMR) tunability with narrow FMR linewidth. Then, E-field manipulation of magnetoresistance in multiferroic anisotropic magnetoresistance and giant magnetoresistance devices for achieving low-power electronic devices is discussed. Finally, E-field control of exchange-bias and deterministic magnetization switching is demonstrated in exchange-coupled antiferromagnetic/ferromagnetic/ferroelectric multiferroic hetero-structures at room temperature, indicating an important step towards MERAMs. In addition, recent progress in electrically non-volatile tuning of magnetic states is also presented. These tunable multiferroic heterostructures and devices provide great opportunities for next-generation reconfigurable radio frequency/microwave communication systems and radars, spintronics, sensors and memories.

Sediment microbial fuel cells as a new source of renewable and sustainable energy: present status and future prospects

RSC Advances ◽  
2015 ◽  
Vol 5 (114) ◽  
pp. 94171-94183 ◽  
Author(s):  
Atieh Zabihallahpoor ◽  
Mostafa Rahimnejad ◽  
Farid Talebnia
Keyword(s):  
Organic Matter ◽  
Fuel Cells ◽  
Low Power ◽  
Production Technology ◽  
Present Status ◽  
Microbial Fuel Cells ◽  
Sustainable Energy ◽  
Future Prospects ◽  
Recent Advances ◽  
Renewable And Sustainable Energy

SMFCs are a bioelectricity production technology for low power applications. Recent advances in SMFCs are investigated to enhance their performance. Power improvement and organic matter reduction in SMFCs enlarge their range of applications.

Autonomous Flyback Converter for Energy Harvesting from Microbial Fuel Cells

2016 ◽  
Vol 3 (2) ◽  
Author(s):  
F. Khaled ◽  
B. Allard ◽  
O. Ondel ◽  
C. Vollaire
Keyword(s):  
Fuel Cells ◽  
Energy Harvesting ◽  
Microbial Fuel Cells ◽  
Low Voltage ◽  
Maximum Power ◽  
Flyback Converter ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Start Up ◽  
Power Point

Cover letterAn autonomous flyback converter was designed for energy harvesting from Microbial Fuel Cells (MFCs). The circuit was optimized to minimize the losses and maximize the efficiency. A Maximum Power Point Tracking (MPPT) algorithm was implanted in the converter to extract the maximum power available from MFC. Discontinuous conduction mode operation of the flyback allows controlling the MPP operation by impedance matching. The flyback can start-up at low voltage, around 300 mV. The output open circuit voltage is about 20 V and the voltage at MPP is 6.4 V with a maximum efficiency of 71.2%.: Microbial fuel cells (MFCs) use bacteria as the catalysts to oxidize organic matter and generate electricity. This energy can be used to supply low power electronic systems. A power management unit between the MFCs and the load is required to adapt the voltage and control the operation. The low voltage and low power characteristics of MFCs prohibit the use of standard converter topologies since the threshold voltage of standard CMOS transistors in CMOS technology is higher than the output voltage of MFCs. A low-voltage start-up sub-circuit is required to charge a primary capacitor to supply the driver. A specific sub-circuit is also required to control the operation of MFCs for Maximum Power Point Tracking (MPPT) issues. An optimized Discontinuous Conduction Mode (DCM) autonomous flyback converter for energy harvesting is presented for ambient sources, like MFCs. The converter is designed, fabricated, and tested. An MPPT algorithm is integrated in the system to control the operation and to extract the maximum available power from the MFC. The converter is able of start and step-up MFC output voltage to a value higher than 3 V under load. The peak efficiency of the converter is 71.2%.

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