US4128789A
(en)
*
|
1976-06-30 |
1978-12-05 |
General Electric Company |
Method of operating gaseous discharge lamps
|
US4051412A
(en)
*
|
1976-09-02 |
1977-09-27 |
General Electric Company |
Discharge lamp operating circuit
|
DE2738065A1
(de)
*
|
1976-09-02 |
1978-03-09 |
Gen Electric |
Schaltung zum betrieb von gasentladungslampen
|
US4168453A
(en)
*
|
1977-12-28 |
1979-09-18 |
Datapower, Inc. |
Variable intensity control apparatus for operating a gas discharge lamp
|
JPH0156518B2
(fr)
*
|
1977-12-28 |
1989-11-30 |
Deetapawaa Inc |
|
EP0081862B1
(fr)
*
|
1977-12-28 |
1987-06-24 |
Datapower, Inc. |
Appareil de commande pour le fonctionnement d'une lampe à décharge
|
US4253046A
(en)
*
|
1978-12-11 |
1981-02-24 |
Datapower, Inc. |
Variable intensity control apparatus for operating a gas discharge lamp
|
US4230971A
(en)
*
|
1978-09-07 |
1980-10-28 |
Datapower, Inc. |
Variable intensity control apparatus for operating a gas discharge lamp
|
US4238710A
(en)
*
|
1978-12-27 |
1980-12-09 |
Datapower, Inc. |
Symmetry regulated high frequency ballast
|
US4266165A
(en)
*
|
1978-12-27 |
1981-05-05 |
Datapower, Inc. |
High intensity discharge lamp starting circuit
|
US5469028A
(en)
*
|
1978-03-20 |
1995-11-21 |
Nilssen; Ole K. |
Electronic ballast drawing sinusoidal line current
|
DE2924069C2
(de)
*
|
1979-06-15 |
1982-05-13 |
Philips Patentverwaltung Gmbh, 2000 Hamburg |
Schaltungsanordnung zum Zünden und Betrieb einer Gas- und/oder Dampfentladungslampe
|
DE3101568C2
(de)
*
|
1981-01-20 |
1986-01-09 |
Wollank, Gerhard, Prof. Dipl.-Phys., 5040 Brühl |
Schaltungsanordnung zum Betrieb von Niederdruckentladungslampen mit einstellbarem Lichtstrom
|
FI63314C
(fi)
|
1981-06-08 |
1983-05-10 |
Helvar Oy |
Elektroniskt foerkopplingsdon foer gasurladdningslampa
|
JPS5870624U
(ja)
*
|
1981-11-06 |
1983-05-13 |
松下電器産業株式会社 |
操作ボタン装置
|
US4422138A
(en)
*
|
1981-12-11 |
1983-12-20 |
General Electric Company |
Power supply for low-voltage load
|
GB2126810A
(en)
*
|
1982-09-06 |
1984-03-28 |
David John Martin |
Electronic drive circuit for discharge lamps
|
US4894587A
(en)
*
|
1984-08-17 |
1990-01-16 |
Lutron Electronics Co., Inc. |
High frequency gas discharge lamp dimming ballast
|
US4663570A
(en)
*
|
1984-08-17 |
1987-05-05 |
Lutron Electronics Co., Inc. |
High frequency gas discharge lamp dimming ballast
|
US4686428A
(en)
*
|
1985-08-28 |
1987-08-11 |
Innovative Controls, Incorporated |
High intensity discharge lamp self-adjusting ballast system with current limiters and a current feedback loop
|
US4682084A
(en)
*
|
1985-08-28 |
1987-07-21 |
Innovative Controls, Incorporated |
High intensity discharge lamp self-adjusting ballast system sensitive to the radiant energy or heat of the lamp
|
US4999547A
(en)
*
|
1986-09-25 |
1991-03-12 |
Innovative Controls, Incorporated |
Ballast for high pressure sodium lamps having constant line and lamp wattage
|
US4857810A
(en)
*
|
1987-03-17 |
1989-08-15 |
General Electric Company |
Current interruption operating circuit for a gaseous discharge lamp
|
US4904903A
(en)
*
|
1988-04-05 |
1990-02-27 |
Innovative Controls, Inc. |
Ballast for high intensity discharge lamps
|
US4952847A
(en)
*
|
1989-06-05 |
1990-08-28 |
Lin Tieng Fu |
Stable ignition means for fluorescent lamp or the like
|
US4970437A
(en)
*
|
1989-07-10 |
1990-11-13 |
Motorola Lighting, Inc. |
Chopper for conventional ballast system
|
DE69132919T2
(de)
*
|
1990-09-25 |
2002-08-29 |
Matsushita Electric Works Ltd |
Betriebsgerät für Entladungslampen
|
FR2771590B1
(fr)
*
|
1997-11-21 |
2003-01-03 |
Sgs Thomson Microelectronics |
Circuit de commande de lampe fluorescente
|
US6121734A
(en)
*
|
1998-10-16 |
2000-09-19 |
Szabados; Barna |
Apparatus for dimming a fluorescent lamp with a magnetic ballast
|
US6538395B2
(en)
|
1999-10-15 |
2003-03-25 |
1263357 Ontario Inc. |
Apparatus for dimming a fluorescent lamp with a magnetic ballast
|
US20050110439A1
(en)
*
|
2005-02-04 |
2005-05-26 |
Osram Sylvania Inc. |
Method of operating a lamp containing a fixed forward phase switching power supply
|
US20050110438A1
(en)
*
|
2005-02-04 |
2005-05-26 |
Osram Sylvania Inc. |
Fixed forward phase switching power supply with time-based triggering
|
US7291984B2
(en)
*
|
2005-02-04 |
2007-11-06 |
Osram Sylvania Inc. |
Method of reducing RMS load voltage in a lamp using pulse width modulation
|
US7274148B2
(en)
*
|
2005-02-04 |
2007-09-25 |
Osram Sylvania Inc. |
Lamp having fixed forward phase switching power supply with time-based triggering
|