Fuel cell power supply

Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature

Reexamination Certificate

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Details

C429S010000, C429S006000, C320S101000

Reexamination Certificate

active

07005204

ABSTRACT:
A fuel cell power supply has a fuel cell and a capacitor which are connected parallel to each other, and controls the amount of a reacting gas supplied to the fuel gas based on a target supply current. A capacitor open voltage calculator calculates an open voltage of the capacitor from a detected current of the capacitor, an output voltage of the fuel cell, and an internal resistance of the capacitor. A corrective quantity calculator calculates a corrective quantity for a target supply current based on the open voltage of the capacitor, the output voltage of the fuel cell, and the target supply current, so as to prevent an air compressor from operating excessively and also prevent the fuel cell from suffering a gas shortage, depending on current-voltage characteristic data of the fuel cell and current-voltage characteristic data of the capacitor.

REFERENCES:
patent: 4883724 (1989-11-01), Yamamoto
patent: 4931947 (1990-06-01), Werth et al.
patent: 6100665 (2000-08-01), Alderman
patent: 6160382 (2000-12-01), Yoon et al.
patent: 6321145 (2001-11-01), Rajashekara
patent: 6326763 (2001-12-01), King et al.
patent: 6384558 (2002-05-01), Yoshida et al.
patent: 6573682 (2003-06-01), Pearson
patent: 6684135 (2004-01-01), Uenodai et al.
patent: 6691810 (2004-02-01), Hasuka et al.
patent: 02287807 (1990-11-01), None
patent: 06-275296 (1994-09-01), None
patent: 11320462 (1999-11-01), None
JPO Web-page translation of JP 06-275296-A, Sep. 1994.

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