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:
Nov. 17, 2009
Filed:
Jul. 07, 2005
Roy Hendrik Anna Maria Van Zundert, Eindhoven, NL;
Subramanian Muthu, Hoffman Estates, IL (US);
Wouter Edgard Koen Broeckx, Dessel, BE;
Gerlach Corne Pieter Maria Emmen, Ravels-Eel, BE;
Oscar Jan Deurloo, Rosmalen, NL;
Lukas Leyten, Waalre, NL;
Roy Hendrik Anna Maria Van Zundert, Eindhoven, NL;
Subramanian Muthu, Hoffman Estates, IL (US);
Wouter Edgard Koen Broeckx, Dessel, BE;
Gerlach Corne Pieter Maria Emmen, Ravels-Eel, BE;
Oscar Jan Deurloo, Rosmalen, NL;
Lukas Leyten, Waalre, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A method of electronic ballast protection including providing an electronic ballast having an AC/DC converterwith an electronic ballast input and a mains voltage connectionconnectable to a mains voltage, an inverteroperably connected to the AC/DC converterand having an electronic ballast outputconnectable to a lamp, a control circuitcontrolling the inverter, and a low voltage power supplyproviding low voltage power to the control circuit; supplying power to the low voltage power supplyfrom the electronic ballast input when the mains voltage connectionis wired to mains voltage; and disconnecting the power to the low voltage power supplywhen the electronic ballast outputis wired to the mains voltage