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:
Sep. 15, 2015
Filed:
Jul. 09, 2013
Tridonic Gmbh and CO KG, Dornbirn, AT;
Tridonic Ag, Ennenda, CH;
Guenter Marent, Bartholomaeberg, AT;
Michael Zimmermann, Heiligkreuz, CH;
Alexander Barth, Alberschwende, AT;
Markus Mayrhofer, Dornbirn, AT;
TRIDONIC GMBH and CO KG, Dornbirn, AT;
TRIDONIC AG, Ennenda, CH;
Abstract
A circuit for operating at least one LED ('driver circuit') includes input terminals to be connected to an input or operating voltage in the form of a direct current (DC) voltage or a rectified alternating current (AC) voltage, and output terminals to be connected to a load circuit containing the at least one LED. The circuit includes a clocked switch and a control circuit for clocking the switch. The control circuit is in the form of an integrated circuit (IC) and is provided with input and output pins. The control circuit generates a clock signal for the switch depending on at least two actual value signals, such that there is a control loop with the manipulated variable 'clocking of the switch.'