Dimming control circuit
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United States of America Patent
Stats
-
Apr 2, 1991
Grant Date -
N/A
app pub date -
Jan 6, 1989
filing date -
Jan 6, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A circuit and a method for controlling the dimming of incandescent lights using a pair of antiparallel connected SCRs which are fired at the same frequency as the frequency of the AC line power to achieve phase control of the power supplied to the light. Only one SCR of the pair is utilized in the 0% to 50% brightness range while both SCRs are utilized in the 51% to 100% brightness range.
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Cited Art Landscape
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