High reliability driving solution for solid state lighting

LED should be driven by a constant current (CC) source due to its diode-like characteristic. The redundancy design for CC drivers is different from that for conventional CV power supplies. Different redundancy solutions are discussed in this paper. The stability issue for N+1 redundancy system is an...

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Bibliographic Details
Published in2016 13th China International Forum on Solid State Lighting (SSLChina) pp. 57 - 59
Main Authors Delai Jiang, Huajian Zhang, Guichao Hua
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2016
Subjects
Light emitting diodes
Lighting
Power system reliability
Redundancy
Sensitivity
Vehicles
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Summary:LED should be driven by a constant current (CC) source due to its diode-like characteristic. The redundancy design for CC drivers is different from that for conventional CV power supplies. Different redundancy solutions are discussed in this paper. The stability issue for N+1 redundancy system is analyzed based on the small signal model. Related solution is suggested and verified by experimental results.
DOI:10.1109/SSLCHINA.2016.7804350