Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
Reexamination Certificate
2006-08-01
2006-08-01
Tran, Thuy V. (Department: 2821)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
Automatic regulation
C315S307000
Reexamination Certificate
active
07084586
ABSTRACT:
The present invention relates to a discharge lamp lighting apparatus which can prevent an increase of loss and a rise of temperature in the area where discharge lamp tube voltage is low. The power conversion circuit1converts the input power Pin to output the DC power Pd. The discharge lamp driving circuit5converts the DC power Pd supplied from the power conversion circuit1to output AC voltage Vo and AC current Io. The controller2provides constant power control for maintaining the AC power Po provided by the AC voltage Vo and AC current Io to be constant when the AC voltage Vo is higher than the predetermined value V1, and provides power reduction control for reducing AC power Po to the power conversion circuit1when the AC voltage Vo is lower than the predetermined value V1.
REFERENCES:
patent: 5142203 (1992-08-01), Oda et al.
patent: 5151631 (1992-09-01), Oda et al.
patent: 5295036 (1994-03-01), Yagi et al.
patent: 5317237 (1994-05-01), Allison et al.
patent: 5365152 (1994-11-01), Ozawa et al.
patent: 5463287 (1995-10-01), Kurihara et al.
patent: 5481163 (1996-01-01), Nakamura et al.
patent: 5486740 (1996-01-01), Yamashita et al.
patent: 5572094 (1996-11-01), Yamashita et al.
patent: 5828177 (1998-10-01), Toda et al.
patent: 6008594 (1999-12-01), Kita et al.
patent: 6046551 (2000-04-01), Kita
patent: 6153987 (2000-11-01), Toda et al.
patent: 6163115 (2000-12-01), Ishizuka
patent: 6191568 (2001-02-01), Poletti
patent: 6208089 (2001-03-01), Itoh et al.
patent: 6281642 (2001-08-01), Konishi et al.
patent: 6340870 (2002-01-01), Yamashita et al.
patent: 6472829 (2002-10-01), Ito et al.
patent: 6531830 (2003-03-01), Akimoto et al.
patent: 6700335 (2004-03-01), Prasad
Ishihara Yutaka
Okawa Kazuo
Le Tung
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Seiko Epson Corporation
TDK Corporation
Tran Thuy V.
LandOfFree
Discharge lamp lighting apparatus and discharge lamp 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 and discharge lamp apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discharge lamp lighting apparatus and discharge lamp apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3637896