FR2251980A1 - - Google Patents
Info
- Publication number
- FR2251980A1 FR2251980A1 FR7438055A FR7438055A FR2251980A1 FR 2251980 A1 FR2251980 A1 FR 2251980A1 FR 7438055 A FR7438055 A FR 7438055A FR 7438055 A FR7438055 A FR 7438055A FR 2251980 A1 FR2251980 A1 FR 2251980A1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
- H05B41/38—Controlling the intensity of light
- H05B41/39—Controlling the intensity of light continuously
- H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
- H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S315/00—Electric lamp and discharge devices: systems
- Y10S315/07—Starting and control circuits for gas discharge lamp using transistors
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US416869A US3919592A (en) | 1973-11-19 | 1973-11-19 | High intensity discharge mercury vapor lamp dimming system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2251980A1 true FR2251980A1 (enExample) | 1975-06-13 |
| FR2251980B1 FR2251980B1 (enExample) | 1979-06-15 |
Family
ID=23651642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7438055A Expired FR2251980B1 (enExample) | 1973-11-19 | 1974-11-19 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3919592A (enExample) |
| JP (1) | JPS5084071A (enExample) |
| DE (1) | DE2454806C2 (enExample) |
| FR (1) | FR2251980B1 (enExample) |
| GB (1) | GB1449079A (enExample) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2469082A1 (fr) * | 1978-12-05 | 1981-05-08 | Lutron Electronics Co | Systeme de commande d'eclairage a economie d'energie et convertisseur utilisable dans un tel systeme |
| FR2506554A1 (fr) * | 1981-05-20 | 1982-11-26 | Signaux Entr Electriques | Dispositif d'alimentation electronique pour lampes a decharge |
| EP0072622A3 (en) * | 1981-07-17 | 1984-05-16 | Flexiwatt Corporation | Energy conservation system providing current control |
| EP0390285A3 (en) * | 1989-03-28 | 1993-02-24 | Matsushita Electric Works, Ltd. | Discharge lamp lighting device |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4060752A (en) * | 1976-03-01 | 1977-11-29 | General Electric Company | Discharge lamp auxiliary circuit with dI/dt switching control |
| FR2352466A1 (fr) * | 1976-05-18 | 1977-12-16 | France Etat | Dispositifs d'alimentation en courant continu des lampes a decharge et appareils d'eclairage equipes de ces dispositifs |
| US4092565A (en) * | 1976-11-22 | 1978-05-30 | General Electric Company | Pulse circuit for gaseous discharge lamps |
| US4045709A (en) * | 1976-06-02 | 1977-08-30 | General Electric Company | Discharge lamp operating circuit |
| US5426349A (en) * | 1978-03-20 | 1995-06-20 | Nilssen; Ole K. | Electronic ballast with two-transistor switching device |
| US4210846A (en) * | 1978-12-05 | 1980-07-01 | Lutron Electronics Co., Inc. | Inverter circuit for energizing and dimming gas discharge lamps |
| US4207498A (en) * | 1978-12-05 | 1980-06-10 | Lutron Electronics Co., Inc. | System for energizing and dimming gas discharge lamps |
| US4286196A (en) * | 1980-02-14 | 1981-08-25 | Auer William F | Automatic dimmer cutout for arc lamp of fiber optic light source |
| HU181323B (en) * | 1981-05-08 | 1983-07-28 | Egyesuelt Izzolampa | High-frequency system of additional resistor for electric discharge lamp |
| NL8104200A (nl) * | 1981-09-11 | 1983-04-05 | Philips Nv | Elektrische schakeling voor het bedrijven van een gas- en/of dampontladingslamp. |
| GB2120470A (en) * | 1982-04-27 | 1983-11-30 | Emi Plc Thorn | Improvements in or relating to discharge lamp circuits |
| US4511823A (en) * | 1982-06-01 | 1985-04-16 | Eaton William L | Reduction of harmonics in gas discharge lamp ballasts |
| DE3528838A1 (de) * | 1985-08-10 | 1987-02-12 | Diehl Gmbh & Co | Zuend- und dimmschaltung fuer eine leuchtstoffroehre |
| US5140228A (en) * | 1990-02-23 | 1992-08-18 | Stocker & Yale, Inc. | Apparatus for regulating the intensity of light emitted by a lamp |
| US5381009A (en) * | 1993-05-28 | 1995-01-10 | Seg Corporation | Motion sensor assembly |
| US5422547A (en) * | 1993-06-16 | 1995-06-06 | Seg Corporation | Fluorescent lamp control circuit with dimmer |
| US5583423A (en) | 1993-11-22 | 1996-12-10 | Bangerter; Fred F. | Energy saving power control method |
| US5606222A (en) * | 1994-12-29 | 1997-02-25 | Philips Electronics North America Corporation | Lighting system with a device for reducing system wattage |
| DE19531458A1 (de) * | 1995-08-26 | 1997-02-27 | Telefunken Microelectron | Verfahren zum Betrieb einer Leuchtstofflampe |
| US5754036A (en) * | 1996-07-25 | 1998-05-19 | Lti International, Inc. | Energy saving power control system and method |
| US6252355B1 (en) * | 1998-12-31 | 2001-06-26 | Honeywell International Inc. | Methods and apparatus for controlling the intensity and/or efficiency of a fluorescent lamp |
| US6172489B1 (en) | 1999-12-28 | 2001-01-09 | Ultrawatt.Com Inc. | Voltage control system and method |
| EP1836883B1 (en) * | 2005-01-03 | 2011-03-02 | Philips Intellectual Property & Standards GmbH | A method and an operation controller for operation of a mercury vapour discharge lamp in an image rendering system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3327202A (en) * | 1963-06-03 | 1967-06-20 | Bell Telephone Labor Inc | Regulated d.c. power supply system |
| US3462643A (en) * | 1967-03-31 | 1969-08-19 | Rca Corp | Switching type voltage and current regulator and which can include voltage doubling means for a load |
| US3483428A (en) * | 1967-07-24 | 1969-12-09 | Bell & Howell Co | Arc lamp supply with constant light regulation and over current protection |
| US3500127A (en) * | 1967-11-28 | 1970-03-10 | Rca Corp | Switching type voltage and current regulator and load therefor |
| US3486070A (en) * | 1968-04-29 | 1969-12-23 | Westinghouse Electric Corp | Solid-state constant power ballast for electric discharge device |
| US3648106A (en) * | 1970-02-24 | 1972-03-07 | Westinghouse Electric Corp | Dynamic reactorless high-frequency vapor lamp ballast |
| US3626277A (en) * | 1970-07-27 | 1971-12-07 | Emerson Electric Co | Current regulator suitable for mercury lamp ballast |
| US3697854A (en) * | 1972-01-27 | 1972-10-10 | Pioneer Magnetics Inc | Regulated dc-dc power supply |
-
1973
- 1973-11-19 US US416869A patent/US3919592A/en not_active Expired - Lifetime
-
1974
- 1974-11-04 GB GB4754474A patent/GB1449079A/en not_active Expired
- 1974-11-19 JP JP49133087A patent/JPS5084071A/ja active Pending
- 1974-11-19 DE DE2454806A patent/DE2454806C2/de not_active Expired
- 1974-11-19 FR FR7438055A patent/FR2251980B1/fr not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2469082A1 (fr) * | 1978-12-05 | 1981-05-08 | Lutron Electronics Co | Systeme de commande d'eclairage a economie d'energie et convertisseur utilisable dans un tel systeme |
| FR2506554A1 (fr) * | 1981-05-20 | 1982-11-26 | Signaux Entr Electriques | Dispositif d'alimentation electronique pour lampes a decharge |
| EP0066481A1 (fr) * | 1981-05-20 | 1982-12-08 | Compagnie De Signaux Et D'entreprises Electriques | Dispositif d'alimentation électronique pour lampes à décharge |
| EP0072622A3 (en) * | 1981-07-17 | 1984-05-16 | Flexiwatt Corporation | Energy conservation system providing current control |
| EP0390285A3 (en) * | 1989-03-28 | 1993-02-24 | Matsushita Electric Works, Ltd. | Discharge lamp lighting device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2454806C2 (de) | 1986-05-28 |
| US3919592A (en) | 1975-11-11 |
| FR2251980B1 (enExample) | 1979-06-15 |
| GB1449079A (en) | 1976-09-08 |
| JPS5084071A (enExample) | 1975-07-07 |
| DE2454806A1 (de) | 1975-05-22 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |