Efficient electrically isolated light sources

Details Efficient electrically isolated light sources Efficient electrically isolated light sources

H - Electricity

05

B

H05B 37/00 (2006.01) F21K 99/00 (2010.01) H05B 37/02 (2006.01)

Patent

CA 2718819

Solid state light sources are compatible with AC phase-cut dimmers. The light sources may have switching mode power supplies having primary and secondary sides that are in first and second circuit parts that are electrically isolated from one another. Information regarding a waveform of input electrical power is extracted in the first circuit part and passed to a controller in the second circuit part by way of a galvanic isolator. Additional isolated paths may be provided to provide bi-directional exchange of information between the first and second circuit parts and/or to provide for the exchange of additional information relevant to control. The signal path from the first side to the second side may have a low latency.

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