Discharge lamp driving apparatus

Details Discharge lamp driving apparatus Discharge lamp driving apparatus

2006-09-19

2006-09-19

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Impedance or current regulator in the supply circuit

C315S226000, C315S259000, C315S277000, C315S248000, C315S308000, C315S312000, C315SDIG002

Reexamination Certificate

active

07109667

ABSTRACT:
A discharge lamp driving apparatus comprises a DC power supply, a control circuit, switching elements, a step-up transformer, and a lamp current controlling circuit. In the discharge lamp driving apparatus, the secondary side of the step-up transformer is connected to multiple discharge lamps respectively via variable inductance elements, a series resonant circuit is constituted by a capacitor provided between the variable inductance element and the discharge lamp, leakage inductance of the step-up transformer, and inductance of the variable inductance element, and an output of the lamp current controlling circuit is connected to the variable inductance element, wherein the inductance of the variable inductance element is varied thereby controlling the lamp current of the discharge lamp.

REFERENCES:
patent: 4016477 (1977-04-01), Ghiringhelli
patent: 4547705 (1985-10-01), Hirayama et al.
patent: 6310444 (2001-10-01), Chang
patent: 6515427 (2003-02-01), Oura et al.
patent: 6703796 (2004-03-01), Che-Chen et al.
patent: 6717372 (2004-04-01), Lin et al.
patent: 6731075 (2004-05-01), Pak
patent: 6784627 (2004-08-01), Suzuki et al.
patent: 2003/0001524 (2003-01-01), Lin et al.
patent: 2003/0057869 (2003-03-01), Ito et al.
patent: 11-260580 (1999-09-01), None
patent: 11-260586 (1999-09-01), None

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