ATE98837T1 - BALLAST FOR A DIRECTLY HEATED DISCHARGE LAMP. - Google Patents
BALLAST FOR A DIRECTLY HEATED DISCHARGE LAMP.Info
- Publication number
- ATE98837T1 ATE98837T1 AT90106385T AT90106385T ATE98837T1 AT E98837 T1 ATE98837 T1 AT E98837T1 AT 90106385 T AT90106385 T AT 90106385T AT 90106385 T AT90106385 T AT 90106385T AT E98837 T1 ATE98837 T1 AT E98837T1
- Authority
- AT
- Austria
- Prior art keywords
- ballast
- discharge lamp
- directly heated
- heated discharge
- lamp
- Prior art date
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
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
In a ballast for a directly heated discharge lamp (6) a controllable switch (14) is connected in series with the capacitor (5) which is located in parallel with the electrodes (7, 8) of the lamp and is part of the series resonant circuit (3, 4). After the lamp has ignited, this switch is opened by a changeover signal generated by a transformer (9). The transformer (9) has two primary windings (10, 11), of equal size but of opposite sense, and one secondary winding. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3910738A DE3910738A1 (en) | 1989-04-03 | 1989-04-03 | CONTROL UNIT FOR A DIRECTLY HEATED DISCHARGE LAMP |
EP90106385A EP0391360B1 (en) | 1989-04-03 | 1990-04-03 | Ballast for a direct heated discharge lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE98837T1 true ATE98837T1 (en) | 1994-01-15 |
Family
ID=6377733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT90106385T ATE98837T1 (en) | 1989-04-03 | 1990-04-03 | BALLAST FOR A DIRECTLY HEATED DISCHARGE LAMP. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0391360B1 (en) |
AT (1) | ATE98837T1 (en) |
DE (2) | DE3910738A1 (en) |
FI (1) | FI96160C (en) |
NO (1) | NO176640C (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4039161C2 (en) * | 1990-12-07 | 2001-05-31 | Zumtobel Ag Dornbirn | System for controlling the brightness and operating behavior of fluorescent lamps |
US5220248A (en) * | 1992-04-28 | 1993-06-15 | Wang Chin Tsan | Fluorescent-lamp protection device in an electronic instant starter assembly |
NL9301694A (en) * | 1993-10-01 | 1995-05-01 | Cm Personnel Participation Bv | Electronic ballast for gas discharge tubes. |
DE69616483T2 (en) * | 1995-06-29 | 2002-06-13 | Koninklijke Philips Electronics N.V., Eindhoven | CIRCUIT |
FI107009B (en) | 1999-03-31 | 2001-05-15 | Teknoware Oy | Fluorescent ballast |
DE20114623U1 (en) * | 2001-09-04 | 2004-02-12 | Wilken, Wilhelm, Dr. | Distal adapter for T5 fluorescent lamps with retrofit ECG |
DE102005018764A1 (en) * | 2005-04-22 | 2006-10-26 | Tridonicatco Gmbh & Co. Kg | Illuminant e.g. electric discharge lamp, output controlling method, involves controlling lamp output based on results of threshold discrimination on output parameter or further parameter as actual value |
DE102005022592A1 (en) * | 2005-05-17 | 2006-11-23 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Circuit arrangement for operating a discharge lamp with switchable resonance capacitor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK495979A (en) * | 1978-12-06 | 1980-06-07 | Moriyama Sangyo Kk | LIGHTING LIGHTING AND SUPPLY CIRCUITS |
AT389614B (en) * | 1981-03-12 | 1990-01-10 | Zumtobel Ag | CONTROL UNIT FOR AT LEAST ONE CONSUMER IGNITIONED AND SUPPLIED BY A GENERATOR |
AT383000B (en) * | 1983-06-23 | 1987-05-11 | Zumtobel Ag | CIRCUIT TO OPERATE AT LEAST ONE GAS DISCHARGE LAMP WITH HIGH FREQUENCY VOLTAGE |
US4603281A (en) * | 1983-12-12 | 1986-07-29 | Nilssen Ole K | Electronic fluorescent lamp starter |
-
1989
- 1989-04-03 DE DE3910738A patent/DE3910738A1/en not_active Withdrawn
-
1990
- 1990-04-02 NO NO901496A patent/NO176640C/en not_active IP Right Cessation
- 1990-04-03 EP EP90106385A patent/EP0391360B1/en not_active Expired - Lifetime
- 1990-04-03 AT AT90106385T patent/ATE98837T1/en not_active IP Right Cessation
- 1990-04-03 DE DE90106385T patent/DE59003830D1/en not_active Expired - Fee Related
- 1990-04-03 FI FI901687A patent/FI96160C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NO901496D0 (en) | 1990-04-02 |
FI96160C (en) | 1996-05-10 |
DE3910738A1 (en) | 1990-10-04 |
DE59003830D1 (en) | 1994-01-27 |
NO901496L (en) | 1990-10-04 |
NO176640B (en) | 1995-01-23 |
FI96160B (en) | 1996-01-31 |
NO176640C (en) | 1995-05-03 |
FI901687A0 (en) | 1990-04-03 |
EP0391360B1 (en) | 1993-12-15 |
EP0391360A1 (en) | 1990-10-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
REN | Ceased due to non-payment of the annual fee |