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:
Nov. 04, 2008
Filed:
Aug. 01, 2006
Kazunori Yamane, Kanagawa, JP;
Akira Satou, Kanagawa, JP;
Toshiharu Okamoto, Kanagawa, JP;
NEC Electronics Corporation, Kanagawa, JP;
Abstract
Disclosed is a booster circuit comprising a voltage detection circuit for outputting a decision output signal for detecting a boosted voltage and controlling a voltage boosting operation, an oscillation circuit, and a plurality of charge pump circuits. The oscillation circuit includes an odd number of stages of control-type inverters. When the decision output signal from the voltage detection circuit indicates the voltage boosting operation (oscillation), the odd number of stages of inverters constitute a closed path. Oscillation outputs from outputs of the control-type inverters are thereby extracted, respectively. When the decision output signal indicates a stop of the voltage boosting operation (stop of the oscillation), output values of the control-type inverters are not inverted and held, and the oscillation is thereby stopped. The charge pump circuits receive output signals from the control-type inverters as clock signals, respectively, and operate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile