LED LAMP

PURPOSE: An LED lamp is provided to preannounce a lifetime of the LED lamp by installing a preannouncing portion in the LED lamp. CONSTITUTION: An AC(Alternating Current) power source connecting portion(1) includes an AC power source. A plug(1) is used as the AC power source connection portion. The...

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Bibliographic Details
Main Authors IMAI FUMIO, OISHI MASATOSHI, TOKIMOTO TOYOTARO
Format Patent
LanguageEnglish
Korean
Published 09.05.2002
Edition7
Subjects
BLASTING
HEATING
LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL
LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE
LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATINGELEMENTS
LIGHTING
MECHANICAL ENGINEERING
NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE
WEAPONS
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Summary:PURPOSE: An LED lamp is provided to preannounce a lifetime of the LED lamp by installing a preannouncing portion in the LED lamp. CONSTITUTION: An AC(Alternating Current) power source connecting portion(1) includes an AC power source. A plug(1) is used as the AC power source connection portion. The AC power is converted to DC power by a bridge-diode rectifier circuit(3) and a capacitor(4). A red LED group(5a), a green LED group(5b), and a blue LED group(5c) are connected to a red driver(6a), a green driver(6b), and a blue driver(6c) by a DC power source line. A control circuit is driven by the DC power. The control circuit is formed with a micro computer including a CPU(71), a RAM(72), an EEPROM(73), a comparator(74), a counter(75), a capacitor(C), and a resistor(R). The control circuit performs an integrating function, a counting function, a power supply mode control function, and a light adjusting function.
Bibliography:Application Number: KR20000064818