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:
Mar. 26, 2013

Filed:

Aug. 31, 2010
Applicants:

Yasuhiro Nakada, Saitama, JP;

Minoru Maedako, Saitama, JP;

Inventors:

Yasuhiro Nakada, Saitama, JP;

Minoru Maedako, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 11/00 (2006.01); H02P 9/00 (2006.01); H02H 7/06 (2006.01); H02P 25/08 (2006.01); H02P 6/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

When a distortion of an output waveform of an alternating-current generator is improved, an output voltage control apparatus of a generator, which has versatility, is obtained. An output voltage control apparatus of a generator (), including a generator winding () and an excitation winding () wound around a stator side, a field winding () wound around a rotor (), and a rectifier () for rectifying a current generated by the excitation winding () and supplying the rectified current to the field winding (), the output voltage control apparatus includes a field current drive means () for comparing an output voltage generated to the generator winding () with a reference wave whose distortion ratio is 0% and flowing a field current to the field winding () by adjusting a drive timing of a PWM signal output by a drive unit () based on a result of the comparison.


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