Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
Reexamination Certificate
2008-02-01
2010-06-08
Vu, David Hung (Department: 2821)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
Automatic regulation
C315S149000, C315S308000
Reexamination Certificate
active
07733035
ABSTRACT:
An electronic power supply device is provided for light-emitting diodes (LEDs), which employs electronic control to maintain the LEDs within the rated ranges of current, voltage and temperature and provides the LEDs with extremely stable current, voltage and temperature. Meanwhile, the power supply device is effective in confining the LEDs within the rated ranges of voltage, current, and temperature so that the excellent electronics protection and design of logic device realized by the power supply device effectively overcomes aging/deterioration of LEDs caused by exceeding voltage and current and burning out due to exceeding temperature and also effectively pushes the rated current and voltage of a (low-power) LED module toward the maximum values to provide the greatest luminous efficiency for upgrading the applications of the LEDs to the primary grade of lighting.
REFERENCES:
patent: 6659622 (2003-12-01), Katogi et al.
patent: 7224150 (2007-05-01), Iwabuki et al.
patent: 2004/0004446 (2004-01-01), Liu
Chen Li-Teh
Chen Siang-Hsiung
Hsu Min-Yung
Pai Hao-Chin
Lei Leong C.
Vu David Hung
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