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:
Mar. 21, 2017
Filed:
Jul. 12, 2013
Philips Lighting Holding B.v., Eindhoven, NL;
Harald Josef Günther Radermacher, Aachen, DE;
Peter Deixler, Valkenswaard, NL;
Peter Hubertus Franciscus Deurenberg, s-Hertogenbosch, NL;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
The present invention relates to a driver device () for driving a load (), in particular a light unit () having one or more light emitters, comprising input terminals for receiving an input voltage (V) from an external power source (), output terminals for providing electrical power to the load for powering the load (), a driver stage () connected to the input terminals and to the output terminals, wherein the driver stage () is adapted to control an input current (I) drawn from the external power supply () and to control the electrical power provided to the output terminal shaving a predefined level, a detection device () for measuring at least one electrical parameter (V, V, I, V) of the driver stage () and for determining an input voltage deviation from predefined supply conditions on the basis of the electrical parameter (V, V, I, V), wherein the driver stage () is adapted to control the input current (I) according to predefined conditions if the input voltage deviation is lower than a threshold level () and to allow a deviation of the input current (I) from the predefined conditions if the input voltage deviation exceeds the threshold level ().