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. 26, 1995
Filed:
Jan. 27, 1994
Applicant:
Inventor:
Antonio Canova, Arezzo, IT;
Assignee:
Magnetek S.p.A., Siena, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ; H05B / ;
U.S. Cl.
CPC ...
363 56 ; 363134 ; 315D / ; 315D / ;
Abstract
An inverter for the supply of one or more discharge lamps with heated electrodes includes a load circuit with a series resonant circuit and at least one lamp, two controllable switches and a control circuit for the switches, causing the switches to conduct alternately. A normally isolated dissipative component is connected, when the voltage across the load circuit exceeds a given value, to the load circuit, thus modifying its figure of merit to limit the maximum voltage without varying the resonant frequency of the load circuit.