GB912181A - Improvements in or relating to circuit arrangements for fluorescent lamps - Google Patents

Improvements in or relating to circuit arrangements for fluorescent lamps

Info

Publication number
GB912181A
GB912181A GB4131159A GB4131159A GB912181A GB 912181 A GB912181 A GB 912181A GB 4131159 A GB4131159 A GB 4131159A GB 4131159 A GB4131159 A GB 4131159A GB 912181 A GB912181 A GB 912181A
Authority
GB
United Kingdom
Prior art keywords
impedance
electrodes
inductive impedance
dec
inductive
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
GB4131159A
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.)
FLUOTECHNIC
Original Assignee
FLUOTECHNIC
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 FLUOTECHNIC filed Critical FLUOTECHNIC
Publication of GB912181A publication Critical patent/GB912181A/en
Expired 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
    • H05B41/16—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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

912,181. Supply circuits for discharge lamps. FLUOTECHNIC. Dec. 4, 1959 [Dec. 6, 1958], No. 41311/59. Class 38 (4). A circuit arrangement for starting and operating a fluorescent lamp 2 comprises a series connection consisting of the two lamp electrodes 1, a non-linear voltage-dependent resistor 3, at least one inductive impedance 4 and at least one capacitive impedance 5. arranged such that one impedance, e.g. 5, and the resistor are connected between the electrodes and the other impedance is connected between one of the mains terminals and one of the electrodes. The inductive impedance may be in two parts connected as shown in Fig. 5a and, with this arrangement, the capacitor 5 may be connected in series with that part of the inductive impedance between the one mains terminal and the associated lamp electrode. A plurality of discharge lamps may be divided into two groups, one having a predominantly inductive impedance between a mains terminal and an associated lamp electrode and the other having a predominately capacitive impedance similarly located so that the two circuits work reciprocally as a power factor corrector.
GB4131159A 1958-12-06 1959-12-04 Improvements in or relating to circuit arrangements for fluorescent lamps Expired GB912181A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF27214A DE1111733B (en) 1958-12-06 1958-12-06 Circuit arrangement for fluorescent lamps

Publications (1)

Publication Number Publication Date
GB912181A true GB912181A (en) 1962-12-05

Family

ID=7092341

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4131159A Expired GB912181A (en) 1958-12-06 1959-12-04 Improvements in or relating to circuit arrangements for fluorescent lamps

Country Status (3)

Country Link
CH (1) CH384075A (en)
DE (1) DE1111733B (en)
GB (1) GB912181A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3584256A (en) * 1968-08-06 1971-06-08 Matsushita Electric Ind Co Ltd Discharge lamp starter device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL164723C (en) * 1971-11-12 1981-01-15 Philips Nv APPARATUS, EQUIPPED WITH A GAS AND / OR VAPOR DISCHARGE TUBE.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2429415A (en) * 1945-06-07 1947-10-21 Gen Electric Circuit for electric discharge devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3584256A (en) * 1968-08-06 1971-06-08 Matsushita Electric Ind Co Ltd Discharge lamp starter device

Also Published As

Publication number Publication date
CH384075A (en) 1964-11-15
DE1111733B (en) 1961-07-27

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