The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 09, 2010

Filed:

Nov. 16, 2001
Applicants:

Satoshi Aoyagi, Wako, JP;

Hibiki Saeki, Wako, JP;

Yusuke Hasegawa, Wako, JP;

Kazuo Kotaka, Wako, JP;

Inventors:

Satoshi Aoyagi, Wako, JP;

Hibiki Saeki, Wako, JP;

Yusuke Hasegawa, Wako, JP;

Kazuo Kotaka, Wako, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2006.01); G01R 21/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a highly efficient fuel cell power supply unit, which is constructed by directly connecting a fuel cell with a capacitor. In this power supply unit, a control device of the unit calculates the output voltage Vof the fuel cell after the variation of electrical load based on the synthetic current-voltage characteristics of the fuel cell and the capacitor and the predetermined width of the variation of electrical load ΔI, calculates the corresponding current Ifc', and then calculates the equilibrium reacting gas supply amount Qa, and supplies an excess amount of the reacting gas exceeding Qabefore the variation of electrical load.


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