Invention Grant
- Patent Title: Segmental driving of light emitting circuits
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Application No.: US16101296Application Date: 2018-08-10
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Publication No.: US10798795B2Publication Date: 2020-10-06
- Inventor: Henricus Marius Joseph Maria Kahlman , Ralph Kurt
- 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
- Agent Daniel J. Piotrowski
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@71a5608a
- Main IPC: H05B45/48
- IPC: H05B45/48 ; H05B45/37 ; H05B45/44 ; H05B45/50 ; H05B45/10 ; H05B47/10 ; G09G3/34 ; H02M3/156 ; H05B41/282 ; H05B41/392

Abstract:
Disclosed is a driver that include a switching circuit for guiding current signal during time-intervals for the sequential driving of light emitting circuit. The time-intervals are defined by the fact that amplitudes of a mains signal are in ranges during the time-intervals. More specifically, there is a bypass switching circuit for guiding a bypass current signal which bypasses all light emitting circuit during an initial time-interval. An adaptation circuit adapts amplitudes of the respective current signals during the respective time-intervals, to reduce a total harmonic distortion. Said adapting may comprise an adaptation in response to information derived from the amplitude of the mains signal, and may comprise shaping the amplitudes of the current signals in response to information derived from the amplitude of the mains signal.
Public/Granted literature
- US20190053338A1 SEGMENTAL DRIVING OF LIGHT EMITTING CIRCUITS Public/Granted day:2019-02-14
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