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. 31, 2001
Filed:
Apr. 12, 1999
Applicant:
Inventor:
Koji Naganawa, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/10 ;
U.S. Cl.
CPC ...
G05F 1/10 ;
Abstract
Power source voltage is supplied to a boost driver of a booster circuit. The boost driver generates a pulse signal when a boost-starting signal indicative of start of boost is input. A boost capacitor boosts voltage level of an output terminal when the pulse signal is received. A precharge circuit supplies voltage to the output terminal on standby before boosting. A constant-voltage generating circuit supplies constant voltage to the precharge circuit.