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. 15, 2008
Filed:
May. 24, 2005
Applicant:
Yukiyasu Ueno, Nishio, JP;
Inventor:
Yukiyasu Ueno, Nishio, JP;
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60L 1/00 (2006.01); B60L 3/00 (2006.01); H02G 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a power supply system for a passive safety device, a step-up circuit steps up an input voltage based on a supply voltage from a battery to obtain a predetermined output voltage. An input voltage detecting circuit detects the input voltage. An output voltage changing circuit changes the output voltage based on a detection signal from the input voltage detecting circuit. Thus, the control load on the step-up circuit is reduced and increase in the size and rating of the step-up circuit is suppressed.