GB896371A - High pressure gas discharge lamp starting and operating circuits - Google Patents

High pressure gas discharge lamp starting and operating circuits

Info

Publication number
GB896371A
GB896371A GB4492/59A GB449259A GB896371A GB 896371 A GB896371 A GB 896371A GB 4492/59 A GB4492/59 A GB 4492/59A GB 449259 A GB449259 A GB 449259A GB 896371 A GB896371 A GB 896371A
Authority
GB
United Kingdom
Prior art keywords
lamp
relay coil
supply
switch
impulses
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
GB4492/59A
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon 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.)
Filing date
Publication date
Application filed by Zeiss Ikon AG filed Critical Zeiss Ikon AG
Publication of GB896371A publication Critical patent/GB896371A/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
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/048—Starting switches using electromagnetic relays

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Keying Circuit Devices (AREA)

Abstract

896,371. Control circuits for space discharge apparatus. ZEISS IKON A.G. Feb. 9, 1959 [Feb. 10, 1958], No. 4492/59. Class 38 (4). An operating circuit for a high-pressure gas discharge lamp is arranged so that high-frequency ignition impulses are repeated applied to the lamp, the number of the impulses being limited to a predetermined figure. A highpressure gas discharge lamp 1 is supplied from an alternating current supply over a rectifier 2, a known type of high-frequency ignition apparatus 3 being included in one of the direct current supply leads. When the supply to the lamp 1 is switched on a relay coil 4 is energized from the D.C. supply over a bimetallic switch 16b, a changeover switch 17b and a relay contact 9b. Contact 4a thus closes to complete the supply to the ignition apparatus 3 over a bimetallic switch 16a and changeover switch 17a, whereby a starting impulse is applied to the lamp 1. Simultaneously with the energization of relay coil 4 a condenser 10 commences to charge and when the voltage thereacross is sufficient, a relay coil 9 operates to open contacts 9a, 9b. Relay coil 4 is thus de-energized, and contact 4a releases to remove the supply from the ignition apparatus 3. At the same time the condenser 10 discharges through the relay coil 9 until it can no longer maintain contacts 9a, 9b open. Closure of these contacts once more energizes relay coil 4 to re-instate the supply to the ignition apparatus 3 whereby another starting impulse is applied to the lamp 1 and so on. After a predetermined number of starting impulses have been applied, the bimetallic switches 16a, 16b, 16c become heated sufficiently to operate to prevent further ignition impulses being applied to the lamp. An indicating lamp 18 operates to indicate that switch 16 has operated. An alternative supply circuit to the ignition apparatus 3 is provided by moving changeover switch so as to open switch 17b and close switch 17a on contact 20, the ignition impulses then being controlled by operation of a push-button 19. In a further embodiment the relay coil 4 is arranged to carry the charging current of the condenser. Specification 896,370 is referred to.
GB4492/59A 1958-02-10 1959-02-09 High pressure gas discharge lamp starting and operating circuits Expired GB896371A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE896371X 1958-02-10

Publications (1)

Publication Number Publication Date
GB896371A true GB896371A (en) 1962-05-16

Family

ID=6848182

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4492/59A Expired GB896371A (en) 1958-02-10 1959-02-09 High pressure gas discharge lamp starting and operating circuits

Country Status (1)

Country Link
GB (1) GB896371A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5194711A (en) * 1975-02-18 1976-08-19
GB2185867A (en) * 1986-01-23 1987-07-29 Hubbell Inc Harvey Circuit for starting hot restarting, and operating an HID lamp
US4763044A (en) * 1986-01-23 1988-08-09 Hubbell Incorporated Start, hot restart and operating lamp circuit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5194711A (en) * 1975-02-18 1976-08-19
JPS5729913B2 (en) * 1975-02-18 1982-06-25
GB2185867A (en) * 1986-01-23 1987-07-29 Hubbell Inc Harvey Circuit for starting hot restarting, and operating an HID lamp
US4763044A (en) * 1986-01-23 1988-08-09 Hubbell Incorporated Start, hot restart and operating lamp circuit
GB2185867B (en) * 1986-01-23 1990-06-13 Hubbell Inc Harvey High intensity discharge lamp starting, hot-restarting, and operating circuits
GB2203302A (en) * 1987-04-06 1988-10-12 Hubbell Inc Start, hot restart and operating circuit for an HIO lamp

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