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:
Apr. 09, 2013

Filed:

May. 03, 2010
Applicants:

Nobuhiro Kihara, Chiyoda-ku, JP;

Masayoshi Maeda, Aioi, JP;

Shinji Kawaguchi, Chiyoda-ku, JP;

Hiroshi Okuda, Chiyoda-ku, JP;

Fumito Uemura, Chiyoda-ku, JP;

Takahiro Urakabe, Chiyoda-ku, JP;

Masaya Inoue, Chiyoda-ku, JP;

Naoki Itoi, Chiyoda-ku, JP;

Kenji Ishi, Chiyoda-ku, JP;

Inventors:

Nobuhiro Kihara, Chiyoda-ku, JP;

Masayoshi Maeda, Aioi, JP;

Shinji Kawaguchi, Chiyoda-ku, JP;

Hiroshi Okuda, Chiyoda-ku, JP;

Fumito Uemura, Chiyoda-ku, JP;

Takahiro Urakabe, Chiyoda-ku, JP;

Masaya Inoue, Chiyoda-ku, JP;

Naoki Itoi, Chiyoda-ku, JP;

Kenji Ishi, Chiyoda-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 9/42 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a power supply device including: a magneto generator (), which includes: a rotor including a magnet forming a magnetic field; and a stator which generates an alternating current in stator windings by rotation of the rotor; a rectifying unit () which rectifies the alternating current generated by the magneto generator to a direct current; a variable transformation-ratio direct current voltage transformer () which transforms an output voltage of the direct current of the rectifying unit to a voltage between input terminals of an electrical load () to which electric power is supplied; and a voltage control unit () which controls a transformation ratio of the variable transformation-ratio direct current voltage transformer in accordance with at least one of an operating state signal regarding the rotation of the rotor of the magneto generator and an electrical load state signal of the electrical load.


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