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. 26, 2005
Filed:
Oct. 10, 2002
Applicants:
Akira Ohmichi, Tokyo, JP;
Keiichiro Numakura, Tokyo, JP;
Inventors:
Akira Ohmichi, Tokyo, JP;
Keiichiro Numakura, Tokyo, JP;
Assignee:
Renesas Technology Corp., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K003/00 ;
U.S. Cl.
CPC ...
Abstract
A drive circuit includes a totem-pole output stage including a top arm and a bottom arm, a pre-drive circuit including a top arm driver and a bottom arm driver, and a power supply voltage boosting power supply circuit. The boosting power supply circuit includes a top arm driver boosting power supply circuit that boosts the top arm and a bottom arm driver boosting power supply circuit that boosts the power supply voltage and outputs a boosted voltage.