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Communication Dans Un Congrès Année : 2012

Association of Flyback Converters to Harvest Energy from Multiple Hydraulically Connected Biofuel Cells

Nicolas Degrenne
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Marilyne Boileau
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Florent Morel
Firas Khaled
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Olivier Ondel
François Buret

Résumé

Biofuel cells use catalysts (chemical, enzymatic or microbial) to convert chemical energy from organic substrates into electrical energy. This paper investigates energy harvesting from several low-power biofuel cells to power a load under several volts. As biofuel cells can share the same fuel source, an isolation is required to aggregate energy towards high voltages (compared to a cell voltage). The proposed converter is based on the well known flyback topology. The efficiency of the flyback converter is about 60% for an input power of 10mW. The PCB area is 29 cm2 compared to around 74 cm2 for a previously built boost converter. The topology of the flyback converter includes a control circuit which allows a regulation of the input voltage to keep it around the maximum power point (MPP at around 0.3 V). This control circuit is powered internally through an auxiliary sub-circuit.
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Dates et versions

hal-00765561 , version 1 (14-12-2012)

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Nicolas Degrenne, Marilyne Boileau, Florent Morel, Firas Khaled, Olivier Ondel, et al.. Association of Flyback Converters to Harvest Energy from Multiple Hydraulically Connected Biofuel Cells. GreenCom, Nov 2012, Besançon, France. pp.CD, ⟨10.1109/GreenCom.2012.106⟩. ⟨hal-00765561⟩
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