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:
Feb. 24, 2009
Filed:
Sep. 13, 2007
Yukihiro Shima, Ibaraki, JP;
Masahiro Inaniwa, Ibaraki, JP;
Hiroyuki Oda, Ibaraki, JP;
Takashi Ueda, Ibaraki, JP;
Yoshihiro Nakano, Ibaraki, JP;
Yukihiro Shima, Ibaraki, JP;
Masahiro Inaniwa, Ibaraki, JP;
Hiroyuki Oda, Ibaraki, JP;
Takashi Ueda, Ibaraki, JP;
Yoshihiro Nakano, Ibaraki, JP;
Hitachi Koki Co., Ltd., Tokyo, JP;
Abstract
Even when a transient decrease has arisen in a battery voltage Vof a battery pack at startup of a motor that drives a flywheel, a power terminal Vcc and a reset terminal RES (or an input terminal IN of a reset IC) of a microcomputer are replenished with a normal voltage by the voltage accumulated by a capacitor of the backup power circuit, and hence a controller can maintain normal operation without involvement of faulty operation. As a result, even the battery pack whose battery has a smaller amount of remaining energy can be effectively utilized as the power source of an electric driving machine.