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. 14, 2010
Filed:
Nov. 17, 2006
Rosario Scollo, Misterbianco, IT;
Santina Leo, Furci Siculo, IT;
Rosario Scollo, Misterbianco, IT;
Santina Leo, Furci Siculo, IT;
STMicroelectronics S.R.L., Agrate Brianza (MI), IT;
Abstract
A method and system controls the power factor associated with a power supply line. The system includes a control circuit having a power factor control cell connected to the power supply line. The power factor control is performed by modulating the conduction time of a bipolar transistor in the control cell using the storage time of the bipolar transistor, and by regulating the modulation of the conduction time by feedback-driving a control terminal of the bipolar transistor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile