Half-wave rectification circuit with a low-pass filter for LED light strings
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United States of America Patent
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Apr 14, 2009
Grant Date -
Sep 18, 2008
app pub date -
Sep 24, 2007
filing date -
Mar 12, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed is a low cost LED string circuit design that uses an inexpensive half-wave rectification and low-pass filter circuit that is designed to produce minimal flicker in the LED string that is connected to the circuit. The components of the half-wave rectification and low-pass filter circuit are selected in accordance with design principles that prevent glittering and flickering of the LED string. The circuit components of the half-wave rectification and low-pass filter circuit can be embedded in an outlet plug or as a separate independent unit between an AC power plug and the LED string.
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