H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 37/00 (2006.01) H01K 1/62 (2006.01) H02M 5/293 (2006.01) H05B 39/00 (2006.01)
Patent
CA 2529519
A lamp contains a lamp voltage conversion circuit that is entirely within a base for converting a line voltage at a lamp terminal to an RMS load voltage at a light emitting element. The voltage conversion circuit includes a forward clipping circuit with a three-terminal thyristor that forward clips a load voltage to define the RMS load voltage, and a time-based pulse source that provides pulses the trigger conduction of the three-terminal thyristor at constant time intervals that are independent of the magnitude of the line voltage.
Ballenger Matthew B.
Weyhrauch Ernest C.
Fetherstonhaugh & Co.
Osram Sylvania Inc.
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