Lamp driving device

Details Lamp driving device Lamp driving device

2007-05-22

2007-05-22

Vu, David (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Impedance or current regulator in the supply circuit

C315S307000, C315S308000

Reexamination Certificate

active

11079090

ABSTRACT:
A lamp driving device for driving a lamp. A feedback circuit includes a voltage falling unit and a rectification circuit. The voltage falling unit provides a low voltage signal in response to a first DC power signal, a first AC power signal or a first driving power signal. The rectification circuit rectifies the low voltage signal to generate a feedback signal. The rectification circuit provides the feedback signal. A controller provides a control signal in response to the feedback signal. A first DC-to-AC converter transforms the first DC power signal to the first AC power signal in response to the control signal. A first voltage raising unit raises the voltage of the first AC power signal to generate the first driving power signal. The first raising unit provides the first driving power signal to a first end of the lamp, so that the lamp achieves the desired brightness stably.

REFERENCES:
patent: 6650070 (2003-11-01), Hudson et al.
patent: 6856103 (2005-02-01), Hudson et al.
patent: 2003/0076054 (2003-04-01), Bai
patent: 2003/0142060 (2003-07-01), Lee et al.

Affiliated with

Also associated with

Rating

Lamp driving device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3740124