Discharge lamp lighting apparatus

Details Discharge lamp lighting apparatus Discharge lamp lighting apparatus

2005-11-18

2009-12-01

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Impedance or current regulator in the supply circuit

C315S225000, C315S247000, C315S2090SC, C315S291000

Reexamination Certificate

active

07626341

ABSTRACT:
A discharge lamp lighting apparatus includes an input power supply, a power supply circuit, a bridge circuit having switching elements that performs AC operation of a discharge lamp, a lighting circuit, a control circuit that controls the power supply circuit, and a drive circuit that drives bridge circuit. An overcurrent suppressing circuit having a resistance element and a switching element connected to the resistance element in parallel therewith is connected between the negative side of the bridge circuit and the negative side of the power supply circuit, so that the overcurrent suppressing circuit automatically adjusts current flowing to the switching elements and suppresses the overcurrent upon starting the discharge lamp.

REFERENCES:
patent: 7239089 (2007-07-01), Suzuki et al.
patent: 7518319 (2009-04-01), Konno et al.
patent: A 5-152088 (1993-06-01), None
patent: A 9-322548 (1997-12-01), None
patent: B2 3258758 (2001-12-01), None
patent: A 2005-5185 (2005-01-01), None

Affiliated with

Also associated with

Rating

Discharge lamp lighting apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Discharge lamp lighting apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discharge lamp lighting apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4057612