Control Device of Cup Lamp
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United States of America Patent
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N/A
Issued Date -
Oct 21, 2010
app pub date -
Apr 18, 2009
filing date -
Apr 18, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A control device includes a rectification circuit, a filter circuit, a detection circuit, a voltage regulator circuit, a constant current circuit and at least one light emitting diode (LED). The rectification circuit is provided for receiving an input voltage of 5 to 24V, and the detection circuit is provided for detecting a quantity of LEDs and an actual required voltage to produce an actual required voltage value, such that the voltage regulator circuit and the constant current circuit can adjust an output current and an output voltage for the LED according to a detection result.
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