Dim control circuit dimming method and system

Details Dim control circuit dimming method and system Dim control circuit dimming method and system

2006-01-18

2010-10-05

Vu, David Hung (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S219000, C315SDIG002

Reexamination Certificate

active

07808191

ABSTRACT:
A dim control circuit dimming method and system with a dimming ballast dim control circuit (148) includes a dimmer switch input (120) having a first terminal (154) and a second terminal (156), the dimmer switch input (120) operably connected to receive a dim signal (106); a power supply (124); a current limiter (126); and a coupler (128). The power supply (124), the current limiter (126), and the coupler (128) are connected in series between the first terminal (154) and the second terminal (156), and the coupler (128) generates a lamp dim control signal (132) when the first terminal (154) and the second terminal (156) are electrically connected.

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Philips Application US040061, Fig. 1, 4, 5. p. 2, line 30 to 33, p.. 3, line 9, 10,20-22, 28, 29, p. 4, line 5-15, p. 5, lines 29-33, p. 6, line 1-5, p. 8, line 11-13, Jan. 21, 2004.

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