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.
Patent No.:
Date of Patent:
Apr. 23, 1996
Filed:
Dec. 22, 1993
Kouji Tanaka, Anjo, JP;
Tooru Aoyama, Okazaki, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
A power generation control system for a generator is provided with a smoothing circuit, a voltage control circuit and an exciting current control circuit including a delaying circuit. When a terminal voltage of a smoothing capacitor is higher than a first reference voltage of a first comparator, a switching element is closed to supply current to an exciting coil. When a divided voltage of a voltage detecting circuit is lower than a second reference voltage of a second comparator, the smoothing capacitor is charged so that the terminal voltage thereof is gradually raised. When a detection voltage of the exciting current control circuit is higher than a third reference voltage of a third comparator, the smoothing capacitor is rapidly discharged so that the terminal voltage thereof is rapidly lowered down to a value not higher than the first reference voltage of the first comparator. Thereafter, the smoothing capacitor is charged again, in a manner as mentioned above, so that the terminal voltage thereof is gradually raised.