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. 20, 2015
Filed:
Sep. 07, 2010
Redouane Eddeane, Eindhoven, NL;
Robertus Leonardus Tousain, Eindhoven, NL;
Bertrand Johan Edward Hontele, Eindhoven, NL;
Dennis Johannes Antonius Claessens, Eindhoven, NL;
Etienne Nicolaas Kathalijntje Paulus Marie Eberson, Echt, NL;
Hong Jiang, Shanghai, CN;
Philip Louis Zulma Vael, Temse, BE;
Redouane Eddeane, Eindhoven, NL;
Robertus Leonardus Tousain, Eindhoven, NL;
Bertrand Johan Edward Hontele, Eindhoven, NL;
Dennis Johannes Antonius Claessens, Eindhoven, NL;
Etienne Nicolaas Kathalijntje Paulus Marie Eberson, Echt, NL;
Hong Jiang, Shanghai, CN;
Philip Louis Zulma Vael, Temse, BE;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
An illumination device () comprises: at least one low-power light source (); a power input stage () suitable for receiving AC low voltage from an electronic transformer (ET); a power buffer stage () having an input () connected to the input stage output (); a driver () for driving the light source and receiving electric power supply from the power buffer stage. The power input stage generates output current pulses for charging the power buffer stage at a relatively low frequency, and during each output current pulse, the power input stage draws input current, the input current always having a current magnitude higher than a minimum load requirement of the electronic transformer.