DK0564895T3 - - Google Patents

Info

Publication number
DK0564895T3
DK0564895T3 DK93104806.0T DK93104806T DK0564895T3 DK 0564895 T3 DK0564895 T3 DK 0564895T3 DK 93104806 T DK93104806 T DK 93104806T DK 0564895 T3 DK0564895 T3 DK 0564895T3
Authority
DK
Denmark
Prior art keywords
diode
discharge lamp
capacitor
neutral line
parallel
Prior art date
Application number
DK93104806.0T
Other languages
Danish (da)
Inventor
Fredy Kamber
Original Assignee
Starkstrom Elektronik Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4202890&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK0564895(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Starkstrom Elektronik Ag filed Critical Starkstrom Elektronik Ag
Application granted granted Critical
Publication of DK0564895T3 publication Critical patent/DK0564895T3/da

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
    • H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2981—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2985—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal lamp operating conditions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)

Abstract

An invertor (4) which is connected to a DC source (3) supplies a discharge lamp (11) via an inductor (17) which is connected in series with the discharge lamp (11). A first capacitor (18) is arranged in parallel with the discharge lamp (11). A second capacitor (19), which is connected via a diode (20) to a neutral line (0), is furthermore connected in parallel with the parallel circuit formed by the discharge lamp (11) and the capacitor (18). When a positive current is flowing, a positive voltage is produced from the diode (20), which voltage is stored via a further diode (22) in a storage capacitor (23) which is connected to a control circuit for the invertor (4). Once the voltage on the storage capacitor (23) has reached a desired value, a zener diode 33 and two transistors (29, 30) short-circuit the diode (20) which is connected to the neutral line (0). When a negative current is flowing, the current passes via this diode (20) directly to the neutral line (0). In consequence, unnecessary losses are avoided. <IMAGE>
DK93104806.0T 1992-04-06 1993-03-24 DK0564895T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1117/92A CH683219A5 (en) 1992-04-06 1992-04-06 Electronic ballast for a low-pressure gas discharge lamp.

Publications (1)

Publication Number Publication Date
DK0564895T3 true DK0564895T3 (en) 1997-03-10

Family

ID=4202890

Family Applications (1)

Application Number Title Priority Date Filing Date
DK93104806.0T DK0564895T3 (en) 1992-04-06 1993-03-24

Country Status (5)

Country Link
EP (1) EP0564895B1 (en)
AT (1) ATE144094T1 (en)
CH (1) CH683219A5 (en)
DE (1) DE59304073D1 (en)
DK (1) DK0564895T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19505460A1 (en) * 1995-02-17 1996-08-22 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Circuit arrangement for operating a discharge lamp
DE10106438A1 (en) * 2001-02-09 2002-08-14 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Ballast for operating electric lamps
US6545432B2 (en) * 2001-08-06 2003-04-08 Osram Sylvania Inc. Ballast with fast-responding lamp-out detection circuit
CN101347048A (en) * 2005-12-22 2009-01-14 皇家飞利浦电子股份有限公司 Auxiliary power supply in a lamp driver circuit
DE102008016754A1 (en) * 2008-03-31 2009-10-01 Tridonicatco Gmbh & Co. Kg Low-voltage supply in control gear for bulbs

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2644314A1 (en) * 1989-03-10 1990-09-14 Harel Jean Claude ELECTRONIC STARTING AND SUPPLY DEVICE FOR FLUORESCENT TUBES WITH PREHEATABLE ELECTRODES
DE4018865A1 (en) * 1990-01-20 1991-12-19 Semperlux Gmbh ELECTRONIC CONTROL UNIT FOR THE OPERATION OF DISCHARGE LAMPS

Also Published As

Publication number Publication date
CH683219A5 (en) 1994-01-31
EP0564895B1 (en) 1996-10-09
DE59304073D1 (en) 1996-11-14
ATE144094T1 (en) 1996-10-15
EP0564895A1 (en) 1993-10-13

Similar Documents

Publication Publication Date Title
US4127797A (en) Inverter oscillator with current feedback
KR900002520A (en) Power supply
CA2116347A1 (en) A resonance mode converter with series-parallel resonance
KR960704385A (en) Circuit arrangement
US5168435A (en) Converter
US5416361A (en) Low dissipation snubber for switching power transistor
US4983887A (en) Controlled series-resonance-loaded ballast
US6107750A (en) Converter/inverter circuit having a single switching element
DK0564895T3 (en)
KR900702755A (en) Inductive load power control circuit
DE69726703D1 (en) Low power DC / DC converter with a large input voltage range
EP0567108B1 (en) A control circuit for a gas discharge lamp, particularly for use in motor vehicles
DE3669242D1 (en) CIRCUIT ARRANGEMENT TO REDUCE PEAK CURRENT IN A BLOCKING CONVERTER SWITCHING POWER SUPPLY.
JPS6472495A (en) Electronic device driving load like discharge lamp and method of driving the load
GB2270428B (en) Shunt type motor speed control circuit
GB1529679A (en) Dc supply circuits
CA2107139A1 (en) Fluorescent Lamp Starter
EP0320605A3 (en) Electronic switching power supply with an inductance dc-dc converter
KR850001963Y1 (en) A rapid lighting device for a fluorescent lamp
SU750454A1 (en) Pulsed dc voltage stabilizer
SU1631677A1 (en) Single-ended dc voltage converter
SU978294A1 (en) One-cycle stabilized dc voltage converter
SU1647801A1 (en) Secondary power supply source
KR950009769Y1 (en) Electronical large current switch protect circuit of unisource circuit
JPS576573A (en) Transistor inverter

Legal Events

Date Code Title Description
AHB Application shelved due to non-payment