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This paper presents a system that can harvest energy in the water and use the harvested energy to power electronic devices deployed in the water. The system consists of a microbial fuel cell (MFC) and a power management system. The MFC uses electrochemical reactions and bacteria that exist in the water to harvest energy and generate electricity. The power management system consisting of a charge pump,...
In this paper, a ripple mirror (RM) technique is proposed to achieve zero ripple condition. By choosing a boost converter as an illustrative example, the corresponding ripple mirror circuit is proposed where the average output voltage serves as the input of the RM circuit and the corresponding mirror control signal is the same as that of the boost converter. To avoid circulating current, a blocking...
This paper proposes a novel DC-AC converter topology for fuel cells applications, and mentions the reduction methods of input current-ripple. Fuel cells are generated electricity by chemical reaction. Chemical reaction time is much slower than commercial frequency. So, input current-ripple may damage the fuel consumption and life span. The conventional DC-AC converter for fuel cells has large capacitor...
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