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:
Oct. 31, 2000
Filed:
Apr. 07, 1999
Naoaki Sudo, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A boosting circuit includes a plurality of boosting circuit units, a voltage detecting circuit and a boost control circuit. The plurality of boosting circuit units have their outputs connected together and respectively having voltage boosting functions. Each of the plurality of boosting circuit units generates a boosted voltage higher than a power supply voltage in response to a drive signal. The voltage detecting circuit detects whether or not the boosted voltage is higher than a predetermined voltage, to generate a voltage control signal when it is detected that the boosted voltage is higher than a predetermined voltage. The boost control circuit limits the voltage boosting functions of predetermined ones of the plurality of boosting circuit units in response to the voltage control signal.