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:
Apr. 29, 2014
Filed:
May. 09, 2011
Robert Beland, St. Marthe sur le Lac, CA;
Giampaolo Carli, Saint-Lazare, CA;
Robert Beland, St. Marthe sur le Lac, CA;
Giampaolo Carli, Saint-Lazare, CA;
Other;
Abstract
An illumination system includes a power supply having a boost converter operating in the discontinuous conduction mode, a flyback converter operating in the critical conduction mode, and a switch coupled to the flyback converter. Several light emitting diodes receive power from the power supply. The boost converter may include a boost inductor (L) and a boost diode (D), constructed to perform the boost power factor correction (PFC) function. The flyback converter may includes a flyback inductor (L) and a flyback diode (D) and the power supply may be constructed to turn on the switch around the point where the current flowing in the flyback inductor reaches zero value.