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. 21, 1998
Filed:
Dec. 03, 1996
Applicant:
Inventor:
Alain Bailly, Simiane Collongue, FR;
Assignee:
SGS-Thomson Microelectronics S.A., Saint Genis, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ; G05F / ; G05F / ; H02M / ;
U.S. Cl.
CPC ...
323282 ; 323285 ; 323288 ; 323222 ; 363 89 ;
Abstract
Disclosed is a switching supply device having a power factor close to unity. The device is characterized by its limited number of components, namely only one power switch, only one control circuit and basic components. Application to power supplies for fluorescent lamps (lighting).