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:
May. 16, 2017
Filed:
Apr. 30, 2014
Tridonic Gmbh & Co. KG, Dornbirn, AT;
Frank Lochmann, Esseratsweiler, DE;
Markus Schertler, Hittisau, AT;
Tridonic GmbH & Co KG, Dornbirn, AT;
Abstract
The invention relates to an operating circuit for at least one LED, said operating circuit being supplied with DC voltage or with rectified alternating voltage and providing a supply voltage for at least one LED by means of a coil (L) and a first switch (S) clocked by a control/regulation unit (SR). When the first switch (S) is activated energy is temporarily stored in the coil (L) and when the first switch (S) is deactivated said energy is discharged via a diode (D) and via at least one LED. The control/regulation unit (SR) activates the first switch (S) when a reactivation condition has been met, and the control/regulation unit (SR) deactivates the first switch (S) when a deactivation condition has been met. Said reactivation condition and/or deactivation condition can be set in accordance with the current dimming level.