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. 07, 2019
Filed:
Jan. 15, 2016
Tridonic Gmbh & CO KG, Dornbirn, AT;
Jamie Kelly, Tyne and Wear, GB;
Deepak Makwana, Tyne and Wear, GB;
TRIDONIC GMBH & CO KG, Dornbirn, AT;
Abstract
The invention is related to a driving circuit that provides an operating current for at least one lighting means. The driving circuit comprises an isolated switched converter having a switch () controlled by a control circuit (), wherein a primary side choke () is charged when the switch () is in its conducting state and the primary side choke () is discharged when the control circuit () controls the switch () in its non-conducting state. The circuit comprises first determining means () for monitoring the current through the primary side choke (), and second determining means () for determining a switch-off time, wherein the second determining means () comprises an auxiliary winding () coupled to a secondary side choke () and the second determining means () is configured to monitor the voltage across the auxiliary winding () for determining a switch-off time.