FUEL CELL DC-DC CONVERTER
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United States of America Patent
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Issued Date -
Sep 18, 2014
app pub date -
Mar 15, 2013
filing date -
Mar 15, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and system for supplying power to a portable electronic device includes supplying current from one or more fuel cells to a DC-DC converter and regulating a current limit of the DC-DC converter as a function of a measured temperature of at least one of the power supply system and the portable electronic device. The current limit can vary as an inverse function of the measured temperature. The current limit can be an input current limit of the DC-DC converter or an output current limit of the DC-DC converter. Current produced by the one or more fuel cells can decrease proportionally to a decrease of the current limit of the DC-DC converter, reducing the heat produced by the one or more fuel cells and thereby reducing the measured temperature. A temperature sensor can be located on or near the one or more fuel cells. A temperature sensor can be located on an internal housing of the portable electronic device.
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