DE59209374D1 - AC ballast for electric discharge lamps - Google Patents

AC ballast for electric discharge lamps

Info

Publication number
DE59209374D1
DE59209374D1 DE59209374T DE59209374T DE59209374D1 DE 59209374 D1 DE59209374 D1 DE 59209374D1 DE 59209374 T DE59209374 T DE 59209374T DE 59209374 T DE59209374 T DE 59209374T DE 59209374 D1 DE59209374 D1 DE 59209374D1
Authority
DE
Germany
Prior art keywords
control unit
charge
discharge
cycle
input voltage
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
DE59209374T
Other languages
German (de)
Inventor
Ferdinand Dipl Ing Mertens
Norbert Dipl Ing Wittig
Fred Dr Ing Hasemann
Karl Dipl Ing Lehnhoff
Franz-Josef Dipl Ing Pitter
Erhard Dipl Ing Muesch
Peter Dipl Ing Maurer
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.)
Trilux GmbH and Co KG
Original Assignee
Trilux Lenze GmbH and Co KG
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
Application filed by Trilux Lenze GmbH and Co KG filed Critical Trilux Lenze GmbH and Co KG
Application granted granted Critical
Publication of DE59209374D1 publication Critical patent/DE59209374D1/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
    • H05B41/2821—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 single-switch converter or a parallel push-pull converter in the final stage
    • H05B41/2824—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 single-switch converter or a parallel push-pull converter in the final stage using control circuits for the switching element

Abstract

An inductance (L) is connected by means of a first electronic switch (T1) to an input voltage (UN) and thereby charged. Discharging is carried out with the switch (T1) in the locked state, the discharge current flowing through the discharge lamp (EL). A control unit (SE) controls the charge and discharge cycles. The control unit (SE) specifies the cycle frequency of the charge and discharge cycles, or the maximum charge current (iO), as a function of the phase angle of the input voltage (UN) and terminates the respective cycle after the cycle duration has expired. By specifying the parameter characteristic stored in the control unit (SE), the power can be evened out without generating an impermissibly high harmonic component. <IMAGE>
DE59209374T 1992-11-06 1992-11-06 AC ballast for electric discharge lamps Expired - Fee Related DE59209374D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92119005A EP0596152B1 (en) 1992-11-06 1992-11-06 AC ballast for electric discharge lamps

Publications (1)

Publication Number Publication Date
DE59209374D1 true DE59209374D1 (en) 1998-07-16

Family

ID=8210209

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59209374T Expired - Fee Related DE59209374D1 (en) 1992-11-06 1992-11-06 AC ballast for electric discharge lamps

Country Status (3)

Country Link
EP (1) EP0596152B1 (en)
AT (1) ATE167352T1 (en)
DE (1) DE59209374D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19619745A1 (en) * 1996-05-15 1997-11-20 Tridonic Bauelemente Circuit arrangement for operating a load and electronic ballast with such a circuit arrangement for operating a lamp
JP2002528884A (en) * 1998-10-22 2002-09-03 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Circuit layout
JP2002528885A (en) * 1998-10-22 2002-09-03 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Circuit layout
US6707285B2 (en) 2001-01-10 2004-03-16 Iwatt Phase-controlled AC-DC power converter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4873471A (en) * 1986-03-28 1989-10-10 Thomas Industries Inc. High frequency ballast for gaseous discharge lamps
DE4101980A1 (en) * 1991-01-24 1992-08-06 Trilux Lenze Gmbh & Co Kg AC voltage ballast for electric discharge lamps

Also Published As

Publication number Publication date
EP0596152A1 (en) 1994-05-11
EP0596152B1 (en) 1998-06-10
ATE167352T1 (en) 1998-06-15

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Legal Events

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