DE59105746D1 - Electronic ballast. - Google Patents

Electronic ballast.

Info

Publication number
DE59105746D1
DE59105746D1 DE59105746T DE59105746T DE59105746D1 DE 59105746 D1 DE59105746 D1 DE 59105746D1 DE 59105746 T DE59105746 T DE 59105746T DE 59105746 T DE59105746 T DE 59105746T DE 59105746 D1 DE59105746 D1 DE 59105746D1
Authority
DE
Germany
Prior art keywords
voltage
circuit
control circuit
supply
transistor
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.)
Expired - Fee Related
Application number
DE59105746T
Other languages
German (de)
Inventor
Dieter Dipl Ing Albert
Peter Prof Dr Ing Marx
Burkhard Prof Dr Ing Karstaedt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Semperlux GmbH
Original Assignee
Semperlux GmbH
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
Priority claimed from DE19904001549 external-priority patent/DE4001549A1/en
Application filed by Semperlux GmbH filed Critical Semperlux GmbH
Application granted granted Critical
Publication of DE59105746D1 publication Critical patent/DE59105746D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H05B41/282—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
    • H05B41/2825—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 by means of a bridge converter in the final stage
    • H05B41/2828—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 by means of a bridge converter in the final stage using control circuits for the switching elements

Abstract

An electronic ballast for low-pressure discharge lamps supplied from DC or AC voltage networks, having an invertor (1) which supplies at least one lamp (8) via a capacitive reactance (6) connected in parallel with it and an inductive reactance (2) connected in series with it, an electronic harmonic filter (4) with a step-up inductor (L3) and a digital control circuit (2) for the invertor, which control circuit is connected to a DC voltage supply circuit (3). The DC voltage supply circuit is connected to the harmonic filter and has a capacitor (C3) which can be charged to the supply voltage of the control circuit via a first transistor (T4). The first transistor switches on immediately after the supply voltage of the electronic ballast has switched on. A blocking circuit (R6, R7, C4, T5) switches the first transistor off once the capacitor is charged and the latter is continuously recharged via an additional auxiliary winding (N1) of the step-up inductor and a rectifier circuit (D1-D4) connected thereto. In consequence, the voltage required to supply the control circuit is made available immediately after the start, in the case of both DC and AC voltage operation. <IMAGE>
DE59105746T 1990-01-20 1991-01-17 Electronic ballast. Expired - Fee Related DE59105746D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904001549 DE4001549A1 (en) 1990-01-20 1990-01-20 Electronic starter circuit for discharge lamps - has PWM integrated circuit with frequency varied to adjust brightness
DE4018865A DE4018865A1 (en) 1990-01-20 1990-06-13 ELECTRONIC CONTROL UNIT FOR THE OPERATION OF DISCHARGE LAMPS

Publications (1)

Publication Number Publication Date
DE59105746D1 true DE59105746D1 (en) 1995-07-27

Family

ID=25889237

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4018865A Withdrawn DE4018865A1 (en) 1990-01-20 1990-06-13 ELECTRONIC CONTROL UNIT FOR THE OPERATION OF DISCHARGE LAMPS
DE59105746T Expired - Fee Related DE59105746D1 (en) 1990-01-20 1991-01-17 Electronic ballast.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE4018865A Withdrawn DE4018865A1 (en) 1990-01-20 1990-06-13 ELECTRONIC CONTROL UNIT FOR THE OPERATION OF DISCHARGE LAMPS

Country Status (3)

Country Link
EP (1) EP0439240B1 (en)
AT (1) ATE124202T1 (en)
DE (2) DE4018865A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3257561B2 (en) * 1991-09-30 2002-02-18 東芝ライテック株式会社 Discharge lamp lighting device and lighting equipment
CH683219A5 (en) * 1992-04-06 1994-01-31 Starkstrom Elektronik Ag Electronic ballast for a low-pressure gas discharge lamp.
EP0620700A1 (en) * 1993-04-15 1994-10-19 Heinrich Korte Electronic ballast
JP2750072B2 (en) * 1993-07-27 1998-05-13 松下電工株式会社 Power converter
DE4328306A1 (en) * 1993-08-23 1994-03-17 Spindler Bernhard Dipl Ing Circuit for HF operation for low presence discharge lamps - has rectifier and inverter and several opto-couplers, with controlled load circuit
DE4406000A1 (en) * 1994-02-24 1995-08-31 Hilite Lighting And Electronic Dimmer for gas-discharge lamps driven off converter producing HF voltage
DE19543419A1 (en) * 1995-11-21 1997-05-22 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Method and circuit arrangement for operating cold cathode fluorescent lamps
DE29605087U1 (en) * 1996-03-19 1996-08-08 Trilux Lenze Gmbh & Co Kg Fluorescent ballast with step-up converter
US5719472A (en) * 1996-05-13 1998-02-17 General Electric Company High voltage IC-driven half-bridge gas discharge ballast
DE29609839U1 (en) * 1996-06-04 1996-08-22 Trilux Lenze Gmbh & Co Kg Fluorescent ballast
JP4252117B2 (en) 1997-05-16 2009-04-08 株式会社デンソー Discharge lamp device
DE10106438A1 (en) * 2001-02-09 2002-08-14 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Ballast for operating electric lamps
DE10134566A1 (en) * 2001-07-16 2003-02-06 Tridonicatco Gmbh & Co Kg Electronic ballast with preheating mode
ATE553633T1 (en) * 2007-04-23 2012-04-15 Osram Ag CIRCUIT ARRANGEMENT FOR GENERATING AN AUXILIARY VOLTAGE AND FOR OPERATING AT LEAST ONE DISCHARGE LAMP
DE102007058982A1 (en) * 2007-12-07 2009-06-10 Tridonicatco Gmbh & Co. Kg Operating device for e.g. gas-discharge lamp in emergency light device, has interface formed as input port, and control unit designed to switch interface such that interface serves for voltage supply for illuminating unit i.e. LED
JP2014512794A (en) 2011-04-22 2014-05-22 コーニンクレッカ フィリップス エヌ ヴェ Power supply circuit for PFC converter
JP6233568B2 (en) * 2013-09-27 2017-11-22 東芝ライテック株式会社 Power supply circuit and lighting device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059064B1 (en) * 1981-02-21 1985-10-02 THORN EMI plc Lamp driver circuits
NL8702847A (en) * 1987-11-27 1989-06-16 Philips Nv DC-AC BRIDGE SWITCH.
DE3888675D1 (en) * 1988-04-20 1994-04-28 Zumtobel Ag Dornbirn Ballast for a discharge lamp.
FR2644314A1 (en) * 1989-03-10 1990-09-14 Harel Jean Claude ELECTRONIC STARTING AND SUPPLY DEVICE FOR FLUORESCENT TUBES WITH PREHEATABLE ELECTRODES

Also Published As

Publication number Publication date
EP0439240A3 (en) 1992-08-19
EP0439240A2 (en) 1991-07-31
DE4018865A1 (en) 1991-12-19
ATE124202T1 (en) 1995-07-15
EP0439240B1 (en) 1995-06-21

Similar Documents

Publication Publication Date Title
DE59105746D1 (en) Electronic ballast.
KR950000803B1 (en) Fluorescent lamp lighting apparatus
KR100289019B1 (en) Lamp ballast circuit
US5744915A (en) Electronic ballast for instant-start lamps
JPS6329496A (en) Low voltage discharge lamp operating circuit device
US4259616A (en) Multiple gaseous lamp electronic ballast circuit
EP0440244A2 (en) Discharge lamp lighting apparatus
DE3265163D1 (en) Ballast circuit for the operation of low-pressure discharge lamps
US5051662A (en) Fluorescent lamp system
ES2118355T3 (en) ELECTRONIC REACTOR FOR THE SUPPLY OF DISCHARGE LAMPS WITH AN OSCILLATOR CIRCUIT TO LIMIT THE CREST FACTOR AND CORRECT THE POWER FACTOR.
IN171097B (en)
US6703794B2 (en) Power factor correction device including electronic ballast function
US5982159A (en) Dimmable, single stage fluorescent lamp
EP0606664B1 (en) Ballast circuit
KR960706282A (en) ELECTRONIC BALLAST WITH LOW HARMONIC DISTORTION
ATE168853T1 (en) ELECTRONIC BALLAST FOR POWERING A LOAD, FOR EXAMPLE A LAMP
JPH11307291A (en) Discharge lamp lighting device
JP3733675B2 (en) Inverter device, discharge lamp lighting device and lighting device
ZA977311B (en) Electronic ballast for gas discharge lamps.
JP2906056B2 (en) Discharge lamp lighting circuit
KR100499745B1 (en) Lamp power supply with dimming function and Light system with dimming control
DK0824300T3 (en) Inverter for discharge lamps power supply with means to improve the power factor
DE59309134D1 (en) Inverter circuit with two smoothing capacitors connected in series
JP3653915B2 (en) Power supply device, discharge lamp lighting device, and lighting device
JP3134958B2 (en) Power supply device, discharge lamp lighting device and lighting device

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee