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. 10, 2023
Filed:
Apr. 01, 2020
Tridonic Gmbh & CO KG, Dornbirn, AT;
Harald Netzer, Nenzing, AT;
Stefan Stark, Muntlix, AT;
Tridonic GmbH & Co KG, Dornbirn, AT;
Abstract
The invention relates to an LLC stage for an LED driver (), comprising a half bridge or full-bridge circuit () comprising two switches (M, M), connected in series, a control circuitry (), such as e.g. a microcontroller or ASIC, for controlling switching operations of the switches (M, M), wherein the control circuitry () for switches is arranged to monitor the middle point voltage between the two switches (M, M) and enables the switch on of one of the switches (M, M) only if the middle point voltage meets defined criteria. The control circuitry () is designed to issue an error signal, if a dead time, during which both switches are non-conducting and resulting from the monitoring of the midpoint voltage, is greater than a preset threshold value.