H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 37/02 (2006.01) H05B 39/04 (2006.01)
Patent
CA 2528671
A lamp includes a phase-control power controller within the lamp. The phase-control power controller includes an analog load voltage sensor that provides an optical output related to an RMS load voltage and a phase-controlled dimming circuit that has a comparison circuit that varies a resistance in the phase-controlled dimming circuit responsive to the optical output from the load voltage sensor.
Ballenger Matthew B.
Kendrick George B.
Fetherstonhaugh & Co.
Osram Sylvania Inc.
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