FR2308273A1 - LUMINOUS FLOW CONTROL DEVICE OF A PLURALITY OF FLUORESCENT LAMPS BY A PARALLEL CONNECTED REGULATOR - Google Patents
LUMINOUS FLOW CONTROL DEVICE OF A PLURALITY OF FLUORESCENT LAMPS BY A PARALLEL CONNECTED REGULATORInfo
- Publication number
- FR2308273A1 FR2308273A1 FR7611325A FR7611325A FR2308273A1 FR 2308273 A1 FR2308273 A1 FR 2308273A1 FR 7611325 A FR7611325 A FR 7611325A FR 7611325 A FR7611325 A FR 7611325A FR 2308273 A1 FR2308273 A1 FR 2308273A1
- Authority
- FR
- France
- Prior art keywords
- switch
- circuit
- lamp
- regulation
- control device
- Prior art date
- 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
- H05B41/3924—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by phase control, e.g. using a triac
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
Abstract
In the case of the light-control circuit, the heating current regulation is carried out via a series-connected switch (1) and the light regulation via a parallel switch which is decoupled via a rectifier (6). In order that the lamp will start irrespective of the value of the inductance of the commercially available ballasts, a starting switch (14) is provided which periodically connects a starting voltage generator (13) to the lamp circuit. A protection switch (15) is used to maintain the heating current in the intact lamps at the rated value in the event of lamp electrodes on the earth side being interrupted by periodic short-circuiting of these lamp electrodes. The circuit is designed such that the series switch (1), the parallel switch (7), the starting switch (14) and the protection switch (15) commutate during the respective zero crossing of the current flowing through them. The circuit is used for illumination regulation in all types of rooms.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752517211 DE2517211C2 (en) | 1975-04-16 | 1975-04-16 | Circuit for brightness control of gas discharge lamps |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2308273A1 true FR2308273A1 (en) | 1976-11-12 |
FR2308273B3 FR2308273B3 (en) | 1979-01-12 |
Family
ID=5944383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7611325A Granted FR2308273A1 (en) | 1975-04-16 | 1976-04-16 | LUMINOUS FLOW CONTROL DEVICE OF A PLURALITY OF FLUORESCENT LAMPS BY A PARALLEL CONNECTED REGULATOR |
Country Status (5)
Country | Link |
---|---|
AT (1) | AT362840B (en) |
CH (1) | CH608155A5 (en) |
DE (1) | DE2517211C2 (en) |
FR (1) | FR2308273A1 (en) |
NL (1) | NL7603999A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5757145A (en) * | 1994-06-10 | 1998-05-26 | Beacon Light Products, Inc. | Dimming control system and method for a fluorescent lamp |
US5652481A (en) * | 1994-06-10 | 1997-07-29 | Beacon Light Products, Inc. | Automatic state tranition controller for a fluorescent lamp |
WO1996028958A1 (en) * | 1995-03-16 | 1996-09-19 | Beacon Light Products, Inc. | Dimming controller and method for a fluorescent lamp |
US5631523A (en) * | 1995-09-19 | 1997-05-20 | Beacon Light Products, Inc. | Method of regulating lamp current through a fluorescent lamp by pulse energizing a driving supply |
US5739640A (en) * | 1995-12-08 | 1998-04-14 | Beacon Light Products, Inc. | Low line voltage detection control module and method for a fluorescent lamp |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2332682C2 (en) * | 1973-06-25 | 1985-06-27 | Deutsche Itt Industries Gmbh, 7800 Freiburg | Circuit for brightness control of gas discharge lamps |
-
1975
- 1975-04-16 DE DE19752517211 patent/DE2517211C2/en not_active Expired
-
1976
- 1976-04-09 CH CH449676A patent/CH608155A5/en not_active IP Right Cessation
- 1976-04-15 AT AT280576A patent/AT362840B/en not_active IP Right Cessation
- 1976-04-15 NL NL7603999A patent/NL7603999A/en not_active Application Discontinuation
- 1976-04-16 FR FR7611325A patent/FR2308273A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2517211C2 (en) | 1987-02-26 |
DE2517211A1 (en) | 1976-10-21 |
NL7603999A (en) | 1976-10-19 |
AT362840B (en) | 1981-06-25 |
FR2308273B3 (en) | 1979-01-12 |
ATA280576A (en) | 1980-11-15 |
CH608155A5 (en) | 1978-12-15 |
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