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. 05, 2015
Filed:
Jan. 23, 2013
Dialog Semiconductor Gmbh, Kirchheim/Teck-Nabern, DE;
Nebojsa Jelaca, Graz, AT;
Stefan Zudrell-Koch, Kirchheim am Neckar, DE;
Dialog Semiconductor GmbH, Kirchheim/Teck-Nabern, DE;
Abstract
The present document relates to a method and system for dimming low power illumination devices, such as LED (Light Emitting Diode) assemblies. A controller for a driver circuit of a light source is described. The driver circuit controls a plurality of illumination states of the light source using a power converter, which converts power from an input voltage waveform of a mains power supply into a drive signal for the light source. The controller comprises an event detection unit; a state register to store an indication of a current state of the illumination states; a state processor to determine a target state of the illumination states, based on the detected event and based on the current state; and an output control unit controls the power converter of the driver circuit to provide a drive signal for the target state.