NL7501888A - Voorschakelinrichting. - Google Patents

Voorschakelinrichting.

Info

Publication number: NL7501888A
Authority: NL; Netherlands
Prior art keywords: front gear; gear
Prior art date: 1974-04-26

Application number

NL7501888A

Other languages

English (en)

Dutch (nl)

Original Assignee

Bertos 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.)

1974-04-26

Filing date

1975-02-18

Publication date

1975-10-28

1975-02-18 Application filed by Bertos Ag filed Critical Bertos Ag

1975-10-28 Publication of NL7501888A publication Critical patent/NL7501888A/xx

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
- H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
- H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
- H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
- H05B41/232—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps
- H05B41/2325—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps provided with pre-heating electrodes
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/08—High-leakage transformers or inductances
- H01F38/10—Ballasts, e.g. for discharge lamps

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Circuit Arrangements For Discharge Lamps (AREA)

NL7501888A 1974-04-26 1975-02-18 Voorschakelinrichting. NL7501888A (nl)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2420177A DE2420177A1 (de)	1974-04-26	1974-04-26	Vorschaltgeraet und dergleichen in der reihenresonanz-doppel-drosselschaltung

Publications (1)

Publication Number	Publication Date
NL7501888A true NL7501888A (nl)	1975-10-28

Family

ID=5913982

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7501888A NL7501888A (nl)	1974-04-26	1975-02-18	Voorschakelinrichting.

Country Status (2)

Country	Link
DE (1)	DE2420177A1 (xx)
NL (1)	NL7501888A (xx)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1080699B (de) *	1940-04-06	1960-04-28	Philips Patentverwaltung	Vorrichtung mit einer elektrischen Gasentladungsroehre
US3200290A (en) *	1960-05-25	1965-08-10	Philips Corp	Ballast device and circuit for gas discharge lamps
GB1235496A (en) *	1968-07-02	1971-06-16	Gen Electric Co Ltd	Improvements in or relating to circuit arrangements for starting and operating electric discharge lamps from alternating current supplies

1974
- 1974-04-26 DE DE2420177A patent/DE2420177A1/de not_active Ceased
1975
- 1975-02-18 NL NL7501888A patent/NL7501888A/xx not_active Application Discontinuation

Also Published As

Publication number	Publication date
DE2420177A1 (de)	1975-11-13

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Legal Events

Date	Code	Title
1982-03-01	BA	A request for search or an international-type search has been filed
1984-03-01	BB	A search report has been drawn up
1984-09-03	BV	The patent application has lapsed