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. 20, 1993
Filed:
Sep. 20, 1991
Masahito Ohnishi, Amagasaki, JP;
Takashi Kanda, Hirakata, JP;
Matsushita Electric Works, Ltd., Osaka, JP;
Abstract
An apparatus for operating discharge lamps includes first closed circuit for connecting a discharge lamp through first switching means to a pulsating power source, second closed circuit for connecting the lamp to the power source through a series circuit of second switching means which operates during OFF period of the first switching means and an energy-storing means, and an arrangement for controlling the both switching means. A pulsating source voltage is thereby applied to the discharge lamp. The apparatus is made thus capable at least of minimizing current-limiting impedance and realizing a continuously stabilized discharge of the lamp.