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:
Nov. 02, 2004
Filed:
Aug. 06, 2002
Yasuhiro Tamai, Shizuoka, JP;
Tetsuya Hasegawa, Shizuoka, JP;
Yazaki Corporation, Tokyo, JP;
Abstract
A load driving device of the invention includes an electric charge control unit , which charges a low-voltage battery with a direct-current voltage from a DC/DC converter that converts a high voltage from a high-voltage battery into a low voltage. The electric charge control unit includes a switching regulator for performing switching of the direct-current voltage from the DC/DC converter varying an output voltage supplied to the low-voltage battery , a series regulator for inputting the direct-current voltage from the DC/DC converter and adjusting power consumption to vary an output voltage supplied to the low-voltage battery , and a voltage-current detector for detecting a voltage in accordance with a charge ratio of the low-voltage battery