Fuel cell charger interface with multiple voltage outputs for portable devices
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United States of America Patent
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Issued Date -
Dec 13, 2007
app pub date -
Jun 12, 2006
filing date -
Jun 12, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A fuel cell-based powerpack for use with an electronic device that requires multiple voltages is provided. The power pack includes an interface between a direct oxidation fuel cell and one or more rechargeable batteries coupled to supply power to the electronic application device. The interface is connected to receive the output of the fuel cell and includes one or more DC-DC converters that not only boost power to said one or more batteries, but are further coupled to the electronic device such that the fuel cell can be used to directly provide one or more subvoltages, at required voltage rails, directly to said electronic device. The output voltage can also be linearly regulated if needed in a particular application.
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