ATE173576T1 - INVERTER CIRCUIT WITH TWO SMOOTHING CAPACITIES CONNECTED IN SERIES - Google Patents

INVERTER CIRCUIT WITH TWO SMOOTHING CAPACITIES CONNECTED IN SERIES

Info

Publication number
ATE173576T1
ATE173576T1 AT93113170T AT93113170T ATE173576T1 AT E173576 T1 ATE173576 T1 AT E173576T1 AT 93113170 T AT93113170 T AT 93113170T AT 93113170 T AT93113170 T AT 93113170T AT E173576 T1 ATE173576 T1 AT E173576T1
Authority
AT
Austria
Prior art keywords
series
centre tap
series circuit
capacitors
inverter circuit
Prior art date
Application number
AT93113170T
Other languages
German (de)
Inventor
Bernard Ing Apsner
Norbert Ing Primisser
Original Assignee
Tridonic Bauelemente
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 Tridonic Bauelemente filed Critical Tridonic Bauelemente
Application granted granted Critical
Publication of ATE173576T1 publication Critical patent/ATE173576T1/en

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

Abstract

A ballast for a gas-discharge lamp having a rectifier which is supplied from the mains, has two smoothing capacitors (220, 221) in a series circuit between its two outputs and, for its part, supplies an invertor which comprises two controllable switches (201, 202) which are arranged in series and are connected between the two inputs (A, B); a series circuit which is arranged in parallel with the two controllable switches (201,202) and consists of two further capacitors (218,219); and a series circuit consisting of a primary winding (209) of a saturable transformer, an inductor (215) and a parallel circuit comprising a capacitor (217) and the gas-discharge lamp (216), the series circuit connecting the centre tap of the two switches (201, 202) to the centre tap of the two further capacitors (218, 219), and the centre tap of the two further capacitors (218, 219) being connected via a conductor (222) to the centre tap of the two smoothing capacitors (220, 221). <IMAGE>
AT93113170T 1992-08-28 1993-08-17 INVERTER CIRCUIT WITH TWO SMOOTHING CAPACITIES CONNECTED IN SERIES ATE173576T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4228682A DE4228682A1 (en) 1992-08-28 1992-08-28 Ballast for a gas discharge lamp with an inverter circuit

Publications (1)

Publication Number Publication Date
ATE173576T1 true ATE173576T1 (en) 1998-12-15

Family

ID=6466668

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93113170T ATE173576T1 (en) 1992-08-28 1993-08-17 INVERTER CIRCUIT WITH TWO SMOOTHING CAPACITIES CONNECTED IN SERIES

Country Status (3)

Country Link
EP (1) EP0585727B1 (en)
AT (1) ATE173576T1 (en)
DE (2) DE4228682A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6731075B2 (en) 2001-11-02 2004-05-04 Ampr Llc Method and apparatus for lighting a discharge lamp

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909605A1 (en) * 1979-03-12 1980-09-25 Patra Patent Treuhand CONTROL UNIT FOR OPERATING A DISCHARGE LAMP
GB2124042B (en) * 1982-06-01 1986-10-01 Control Logic Reduction of harmonics in gas discharge lamp ballasts
GB2139028A (en) * 1983-01-28 1984-10-31 Control Logic Method and circuit for load dependent switching of an oscillator
US4996462A (en) * 1988-07-27 1991-02-26 Siemens Aktiengesellschaft Electronic ballast for fluoroscent lamps
US4914558A (en) * 1989-03-06 1990-04-03 Jon Flickinger Series resonant inverter and method of lamp starting
DE69016815T2 (en) * 1989-04-14 1995-09-07 Tlg Plc Ballasts for gas discharge lamps.
IL93265A0 (en) * 1990-02-04 1990-11-29 Gaash Lighting Ind Electronic ballast for gas discharge lamp
DE4021640A1 (en) * 1990-07-06 1992-01-09 Zumtobel Ag BRIGHTNESS CONTROL CIRCUIT ARRANGEMENT

Also Published As

Publication number Publication date
EP0585727A1 (en) 1994-03-09
EP0585727B1 (en) 1998-11-18
DE4228682A1 (en) 1994-03-03
DE59309134D1 (en) 1998-12-24

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee