Invention Grant
- Patent Title: Method of controlling a lighting emitting diode lighting device and a light emitting diode, LED, based lighting device
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Application No.: US17927045Application Date: 2021-06-08
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Publication No.: US12156307B2Publication Date: 2024-11-26
- Inventor: Vincent Arnoud Wouters , Berend Jan Willem Ter Weeme , Aldegonda Lucia Weijers
- Applicant: SIGNIFY HOLDING B.V.
- Applicant Address: NL Eindhoven
- Assignee: SIGNIFY HOLDING B.V.
- Current Assignee: SIGNIFY HOLDING B.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP20178967 20200609,EP20180174 20200616
- International Application: PCT/EP2021/065226 WO 20210608
- International Announcement: WO2021/249975 WO 20211216
- Main IPC: H05B45/20
- IPC: H05B45/20 ; F21S4/10 ; H05B45/305 ; H05B45/48 ; F21Y115/10

Abstract:
A method of controlling a multicolor LED lighting device is discloses. The LED lighting device comprises at least two series-connected LED light sources with different color metric values and supplied with a current, each LED light source is controlled by a respective switch operating according to a duty cycle. The method adapts an operating current amplitude supplied to the multicolor LED lighting device based on a color point that is required by a user. The method comprises the steps of receiving a designated color metric value for the LED lighting device; determining an operating current amplitude for the LED lighting device based on a current profile over a range of color metric values and the designated color metric value, and setting the current supplied to the LED light sources to the determined operating current amplitude.
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