EP0243948A3 - Control circuit for an arc lamp - Google Patents

Control circuit for an arc lamp Download PDF

Info

Publication number: EP0243948A3
Authority: EP; European Patent Office
Prior art keywords: control circuit; arc lamp; lamp; arc; circuit
Prior art date: 1986-04-30
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.): Granted

Application number

EP87106228A

Other languages

German (de)

Other versions

EP0243948A2 (en

EP0243948B1 (en

Inventor

Michael Dipl.-Ing. Schmidt

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.)

Individual

Original Assignee

Individual

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.)

1986-04-30

Filing date

1987-04-29

Publication date

1988-01-20

1987-04-29 Application filed by Individual filed Critical Individual

1987-11-04 Publication of EP0243948A2 publication Critical patent/EP0243948A2/en

1988-01-20 Publication of EP0243948A3 publication Critical patent/EP0243948A3/en

1990-09-26 Application granted granted Critical

1990-09-26 Publication of EP0243948B1 publication Critical patent/EP0243948B1/en

2007-04-29 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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
- H05B41/288—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 without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
- H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions

EP87106228A 1986-04-30 1987-04-29 Control circuit for an arc lamp Expired - Lifetime EP0243948B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3614708		1986-04-30
DE19863614708 DE3614708A1 (en)	1986-04-30	1986-04-30	CONTROL CIRCUIT FOR AN ARC LAMP

Publications (3)

Publication Number	Publication Date
EP0243948A2 EP0243948A2 (en)	1987-11-04
EP0243948A3 true EP0243948A3 (en)	1988-01-20
EP0243948B1 EP0243948B1 (en)	1990-09-26

Family

ID=6299907

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP87106228A Expired - Lifetime EP0243948B1 (en)	1986-04-30	1987-04-29	Control circuit for an arc lamp

Country Status (2)

Country	Link
EP (1)	EP0243948B1 (en)
DE (2)	DE3614708A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2212995A (en) *	1987-10-23	1989-08-02	Rockwell International Corp	Fluorescent lamp dimmer
DE3925654A1 (en) *	1989-08-03	1991-02-07	Schmidt Michael	Control unit for discharge lamp(s) - has switches in series connected to DC circuit and diode in parallel in blocking direction
DE4224996A1 (en) *	1992-07-29	1994-02-03	Hella Kg Hueck & Co	Ballast for operating high-pressure gas discharge lamps with low-frequency, rectangular voltage in motor vehicles
JP2879514B2 (en) *	1993-01-07	1999-04-05	株式会社小糸製作所	Lighting circuit for vehicle discharge lamps
DE4301184C2 (en) *	1993-01-19	1997-12-18	B & S Elektronische Geraete Gm	Control device for at least one discharge lamp

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2307416A1 (en) *	1972-02-16	1973-08-23	Thorn Electrical Ind Ltd	DISCHARGE LAMP BALLAST CIRCUIT
DE2904393A1 (en) *	1978-02-07	1979-08-09	Cremer Soc	CONVERTER FOR SUPPLYING DISCHARGE LAMPS AND PROJECTOR EQUIPPED WITH IT

1986
- 1986-04-30 DE DE19863614708 patent/DE3614708A1/en not_active Withdrawn
1987
- 1987-04-29 EP EP87106228A patent/EP0243948B1/en not_active Expired - Lifetime
- 1987-04-29 DE DE8787106228T patent/DE3765163D1/en not_active Expired - Lifetime

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2307416A1 (en) *	1972-02-16	1973-08-23	Thorn Electrical Ind Ltd	DISCHARGE LAMP BALLAST CIRCUIT
DE2904393A1 (en) *	1978-02-07	1979-08-09	Cremer Soc	CONVERTER FOR SUPPLYING DISCHARGE LAMPS AND PROJECTOR EQUIPPED WITH IT

Also Published As

Publication number	Publication date
EP0243948A2 (en)	1987-11-04
DE3614708A1 (en)	1987-11-19
DE3765163D1 (en)	1990-10-31
EP0243948B1 (en)	1990-09-26

Legal Events

Date	Code	Title	Description
1987-09-19	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1987-11-04	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB IT
1987-11-04	ITCL	It: translation for ep claims filed	Representative=s name: MODIANO & ASSOCIATI S.R.L.
1987-12-02	GBC	Gb: translation of claims filed (gb section 78(7)/1977)
1987-12-02	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1987-12-18	EL	Fr: translation of claims filed
1988-01-20	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE FR GB IT
1988-04-06	17P	Request for examination filed	Effective date: 19880206
1990-04-18	17Q	First examination report despatched	Effective date: 19900306
1990-08-11	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1990-09-26	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB IT
1990-10-24	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
1990-10-31	REF	Corresponds to:	Ref document number: 3765163 Country of ref document: DE Date of ref document: 19901031
1990-12-19	ITF	It: translation for a ep patent filed	Owner name: MODIANO & ASSOCIATI S.R.L.
1990-12-21	ET	Fr: translation filed
1991-04-30	ITTA	It: last paid annual fee
1991-07-27	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1991-07-27	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1991-09-18	26N	No opposition filed
1994-04-13	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19940413 Year of fee payment: 8
1995-12-29	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19951229
1996-03-29	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
2002-01-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: IF02
2004-04-28	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20040428 Year of fee payment: 18
2004-05-08	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20040508 Year of fee payment: 18
2005-04-29	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050429 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050429
2005-11-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051101
2005-12-28	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20050429

Publication	Publication Date	Title
GB8714756D0 (en)	1987-07-29	Operating lamp circuit
GB8808963D0 (en)	1988-05-18	Operating circuit for direct current discharge lamp
AU574664B2 (en)	1988-07-14	Control circuit for discharge lamp
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EP0243948A3 (en)	1988-01-20	Control circuit for an arc lamp
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GB8729611D0 (en)	1988-02-03	Control circuit
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