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:
Dec. 25, 2007
Filed:
Apr. 08, 2004
Applicants:
Kenichi Origasa, Takatsuki, JP;
Kiyoto Ohta, Takatsuki, JP;
Inventors:
Kenichi Origasa, Takatsuki, JP;
Kiyoto Ohta, Takatsuki, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/46 (2006.01); H02M 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A voltage booster power supply circuit using a first voltage VDDand a second voltage VDDM to boost the first voltage VDD, which is higher than the second voltage, to provide a boosted voltage VPP. Thus, a high efficiency of generation of a boosted voltage can be achieved compared with a configuration in which only the second voltage is used to boost the first voltage. A detector circuit detects the boosted voltage VPP to control a voltage booster circuit.