Invention Grant
- Patent Title: Circuit and method for driving light sources and lighting system
- Patent Title (中): 用于驱动光源和照明系统的电路和方法
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Application No.: US13650183Application Date: 2012-10-12
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Publication No.: US08749150B2Publication Date: 2014-06-10
- Inventor: Alberto Alfier , Lorenzo-Roberto Trevisanello , Simone Massaro , Matteo Toscan
- Applicant: Osram AG
- Applicant Address: DE Munich
- Assignee: Osram AG
- Current Assignee: Osram AG
- Current Assignee Address: DE Munich
- Main IPC: H05B37/02
- IPC: H05B37/02

Abstract:
A circuit for driving a plurality of light sources via a current generator, wherein the light sources are grouped into a plurality of light source sets wherein the driver circuit comprises a plurality of inductive elements, a plurality of switches adapted to selectively connect each light source set in series with one of the inductive elements, and a control circuit configured for driving the switches, so that during a first operation time interval, each light source set is connected in series with a respective first inductive element, and during a second operation time interval, each light source set is connected in series with a respective second inductive element, wherein the respective second inductive element is separate from the respective first inductive element.
Public/Granted literature
- US20130093337A1 CIRCUIT AND METHOD FOR DRIVING LIGHT SOURCES AND LIGHTING SYSTEM Public/Granted day:2013-04-18
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