DC/AC converter for supplying two gas discharge lamps

Details DC/AC converter for supplying two gas discharge lamps DC/AC converter for supplying two gas discharge lamps

2003-12-02

2008-03-04

Vu, David H. (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Periodic switch in the primary circuit of the supply...

C315S224000, C315SDIG002

Reexamination Certificate

active

07339326

ABSTRACT:
An DC/AC converter for supplying two gas discharge lamps, includes a double bridge configuration of four switches and a controller. The controller controls the conducting periods of the switches with a duty cycle which is variable. By control of the conducting periods of the switches, a proper control of the energy supplied to the lamps is obtained.

REFERENCES:
patent: 4734624 (1988-03-01), Nagase et al.
patent: 5875103 (1999-02-01), Bhagwat et al.
patent: 6278245 (2001-08-01), Li et al.
patent: 2002/0190665 (2002-12-01), Sun
patent: 0395159 (1990-10-01), None
patent: 0395159 (1990-10-01), None
patent: 0567108 (1993-10-01), None
patent: 0395159 (1995-03-01), None
ISR, International Search Report PCT/IB03/05762, Feb. 3, 2004.

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