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. 05, 2005
Filed:
Nov. 11, 2002
Applicants:
Akira Suzuki, Nukata-gun, JP;
Hirofumi Abe, Kamagoori, JP;
Hideaki Ishihara, Okazaki, JP;
Inventors:
Assignee:
DENSO Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F001/40 ; G05F001/56 ; G05F001/44 ;
U.S. Cl.
CPC ...
Abstract
A reference voltage circuit and an operational amplifier operate when an output voltage is produced from an output terminal of a power supply circuit. When the output voltage is low in the rising phase of a power source voltage, a transistor Qin a startup circuit turns on and a transistor Qturns off to surely turn on transistors Qand Q. Upon the output voltage exceeding a predetermined level, the transistor Qturns off and an ordinary feedback control starts.
Suzuki, Akira. (2005). Power supply circuit having a start up circuit (U.S. Patent No. 6876180). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6876180
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile