GB578093A - Improvements in or relating to fluorescent tube lighting systems and transformers therefor - Google Patents

Improvements in or relating to fluorescent tube lighting systems and transformers therefor

Info

Publication number
GB578093A
GB578093A GB842443A GB842443A GB578093A GB 578093 A GB578093 A GB 578093A GB 842443 A GB842443 A GB 842443A GB 842443 A GB842443 A GB 842443A GB 578093 A GB578093 A GB 578093A
Authority
GB
United Kingdom
Prior art keywords
shunt
condenser
winding
flux
series
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
Application number
GB842443A
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.)
BOUCHER INV S Ltd
Original Assignee
BOUCHER INV S Ltd
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 BOUCHER INV S Ltd filed Critical BOUCHER INV S Ltd
Priority to GB842443A priority Critical patent/GB578093A/en
Publication of GB578093A publication Critical patent/GB578093A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

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

Abstract

578,093. Supply systems for space discharge apparatus; transformers. STEVENS, A. H. (Boucher Inventions, Ltd.). May 26, 1943, No. 8424. [Classes 38 (ii) and 38 (iv)] A supply system for two fluorescent tubes, T1, T2, comprises a high leakage reactance transformer 11 having two secondary windings S1, S2 each connected to a tube, there being flux shunts arranged between the secondary windings and the primary winding means and the reluctance of the shunt paths being different. Each secondary winding may supply one lamp, a condenser being in series with the winding associated with the flux shunt of higher reluctance ; the current in this lamp may be mainly controlled by the condenser and the shunt associated with the winding concerned may be eliminated. In a modification the two secondaries, the two tubes and a condenser may be in series. The transformer may have two primary windings connected in series or in parallel in either bucking or aiding relationship. Fig. 1 shows one arrangement the flux shunt sh3, sh4 having greater air gaps than the flux shunt sh1, sh2.
GB842443A 1943-05-26 1943-05-26 Improvements in or relating to fluorescent tube lighting systems and transformers therefor Expired GB578093A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB842443A GB578093A (en) 1943-05-26 1943-05-26 Improvements in or relating to fluorescent tube lighting systems and transformers therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB842443A GB578093A (en) 1943-05-26 1943-05-26 Improvements in or relating to fluorescent tube lighting systems and transformers therefor

Publications (1)

Publication Number Publication Date
GB578093A true GB578093A (en) 1946-06-14

Family

ID=9852242

Family Applications (1)

Application Number Title Priority Date Filing Date
GB842443A Expired GB578093A (en) 1943-05-26 1943-05-26 Improvements in or relating to fluorescent tube lighting systems and transformers therefor

Country Status (1)

Country Link
GB (1) GB578093A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494167A (en) * 1981-04-03 1985-01-15 The Marconi Company Limited Inductor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494167A (en) * 1981-04-03 1985-01-15 The Marconi Company Limited Inductor

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