Electric lamp and discharge devices: systems – Condenser in the supply circuit – Resistance in the condenser circuit
Reexamination Certificate
2004-10-16
2009-11-03
Vy, Hung T (Department: 2163)
Electric lamp and discharge devices: systems
Condenser in the supply circuit
Resistance in the condenser circuit
C315S194000, C315S291000, C315S244000
Reexamination Certificate
active
07612504
ABSTRACT:
An incandescent lamp includes a lamp voltage conversion circuit within the lamp and connected to a lamp terminal, where the voltage conversion circuit converts a first line voltage at the lamp terminal to a second RMS load voltage usable by a light emitting element of the lamp. The voltage conversion circuit includes a triac phase-controlled dimming circuit, which in turn includes a voltage controlled resistor that varies a resistance in the phase-controlled dimming circuit as the first voltage varies so as to maintain the second voltage substantially constant. The voltage conversion circuit may be an integrated circuit that is in the lamp base and connected between the lamp terminal and the light emitting element.
REFERENCES:
patent: 3609402 (1971-09-01), Ferro
patent: 3869631 (1975-03-01), Anderson et al.
patent: 4224563 (1980-09-01), Hardy
patent: 4977346 (1990-12-01), Gibson et al.
patent: 4988921 (1991-01-01), Ratner et al.
patent: 5055742 (1991-10-01), Jurell et al.
patent: 5083255 (1992-01-01), Nilssen
patent: 5144205 (1992-09-01), Motto et al.
patent: 5231627 (1993-07-01), Paul et al.
patent: 5892391 (1999-04-01), Hughes
patent: 6037722 (2000-03-01), Moisin
patent: 6445133 (2002-09-01), Lin et al.
patent: 6690040 (2004-02-01), Chaudhry et al.
patent: 6727665 (2004-04-01), Yao
patent: 6870327 (2005-03-01), Takahashi et al.
Ballenger Matthew B.
Kendrick George B.
Ho Binh V
Montana Shaun P.
OSRAM SYLVANIA Inc.
Vy Hung T
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