Electric lamp and discharge devices: systems – Current and/or voltage regulation
Reexamination Certificate
2007-09-25
2007-09-25
Philogene, Haissa (Department: 2821)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
C315S224000, C315S2090SC, C315S247000, C315S312000, C315S307000, C315SDIG002
Reexamination Certificate
active
11314050
ABSTRACT:
A system for driving a lamp module (13) includes a converter (11), a driving circuit (12), and a pulse width modulation (PWM) controller (14). The lamp module includes a plurality of lamps. The converter converts a received voltage to a direct current (DC) voltage. The driving circuit converts the DC voltage to an alternating current (AC) voltage. The PWM controller is connected between the converter and the lamp module, for regulating the DC voltages outputted from the converter according to current flowing through the lamps of the lamp module. In one embodiment, the system includes a bus inverter controller. The bus inverter controller is connected between the driving circuit and the lamp module, for regulating a working frequency thereof and controlling the AC voltage outputted from the driving circuit when the lamps are turned on. The system has a reduced number of PWM controllers and a relatively low cost.
REFERENCES:
patent: 6104146 (2000-08-01), Chou et al.
patent: 6316881 (2001-11-01), Shannon et al.
patent: 6750842 (2004-06-01), Yu
patent: 6781325 (2004-08-01), Lee
patent: 6936975 (2005-08-01), Lin et al.
patent: 6947024 (2005-09-01), Lee et al.
patent: 6969958 (2005-11-01), Henry
patent: 2004/0032223 (2004-02-01), Henry
Chao Yu-Hsiao
Fan Chiang Che-Chen
Lee Chi-Hsiung
Lin Shian-Nan
Tsai Cheng-Chueh
Hon Hai Precision Industry Co. Ltd.
Morris Manning & Martin LLP
Philogene Haissa
Tingkang Xia, Esq. Tim
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