Light emitting diode driving circuit
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United States of America Patent
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N/A
Issued Date -
Jun 9, 2005
app pub date -
Dec 9, 2003
filing date -
Dec 9, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A light emitting diode (LED) driving circuit includes a power supply, a rectification circuit, an LED array and a current control circuit. The invention is characterized that, when the power supply passes through the current control circuit, using charging and discharging of a capacitor and parallel equivalent resistance current-limiting characteristics of a capacitor and a resistor, the rectification circuit converts an alternating current into a direct current that is outputted to the LED array, thereby providing the LED array with a stable quota driving current.
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