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. 24, 2000
Filed:
Oct. 16, 1998
Applicant:
Inventor:
Mihail S Moisin, Brookline, MA (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
3152 / ; 315161 ; 315291 ; 315307 ;
Abstract
A ballast circuit includes a rectifier for coupling to independent first and second AC input signals, a first inverter for energizing a first lamp and a second inverter for energizing a second lamp. A boost converter can be coupled between the rectifier and the inverters. The first inverter is enabled when the first AC input signal is applied to the rectifier and the second inverter is enabled when the second AC input signal is present.