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:
Jul. 28, 1992
Filed:
Mar. 29, 1990
Applicant:
Inventors:
Shinichiro Iwasaki, Aichi, JP;
Motonobu Akagi, Aichi, JP;
Nobuyuki Oota, Aichi, JP;
Yasutoshi Yamada, Aichi, JP;
Assignee:
Aisin Seiki K.K., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F / ; H02M / ;
U.S. Cl.
CPC ...
323222 ; 323285 ; 363 71 ;
Abstract
A DC voltage converting device having a choke coil, a switching device, a capacitor for accumulating electric energy, an inhibition setting device for setting and releasing an inhibition of charging, a current detecting device for detecting a charge current of the choke coil, a charge/discharge setting device for setting a discharge of the choke coil, and a driving device for conductively energizing the switching device. Based on this construction, when a capacitor voltage exceeds a predetermined voltage, only a time for interrupting the charge is extended.