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GB1208489A - Circuit arrangement for igniting and supplying a gas and/or vapour-discharge lamp - Google Patents

Circuit arrangement for igniting and supplying a gas and/or vapour-discharge lamp

Info

Publication number
GB1208489A
GB1208489A GB3561968A GB3561968A GB1208489A GB 1208489 A GB1208489 A GB 1208489A GB 3561968 A GB3561968 A GB 3561968A GB 3561968 A GB3561968 A GB 3561968A GB 1208489 A GB1208489 A GB 1208489A
Authority
GB
United Kingdom
Prior art keywords
circuit
capacitor
conduct
igniting
gas
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
GB3561968A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1208489A publication Critical patent/GB1208489A/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
    • H05B41/042—Starting switches using semiconductor devices
    • H05B41/044—Starting switches using semiconductor devices for lamp provided with pre-heating electrodes
    • H05B41/046—Starting switches using semiconductor devices for lamp provided with pre-heating electrodes using controlled semiconductor devices
    • 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
    • H05B41/042—Starting switches using semiconductor devices

Landscapes

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

Abstract

1,208,489. Igniting discharge lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 25 July, 1968 [28 July, 1967], No. 35619/68. Heading H2H. Gas and/or vapour discharge lamps are ignited and fed in a circuit which has a semiconductor switching device 9 which ceases to conduct when current in it due to discharge of a capacitor 4 across the lamp 5 tends to reverse and which is controlled to conduct again after a time greater than 1/4f where f is the natural frequency of the circuit across the input terminals 1, 2 which includes the capacitor 4. This provides a derived high frequency ignition voltage for a discharge lamp with or without heaters 6, 7. In Fig. 4 an autotransformer 65 has part of its winding in the capacitor circuit to increase the ignition voltage and the control circuit 69 operates on reverse parallel semiconductor rectifiers 31<SP>1</SP>, 32<SP>1</SP>. This control circuit has discs 37<SP>1</SP>, 40 which break down when respective capacitors 36<SP>1</SP>, 39<SP>1</SP> are charged and make the thyristors 31<SP>1</SP>, 32<SP>1</SP> conduct. In Fig. 5 (not shown) a single controlled rectifier is connected in the circuit through a rectifier bridge.
GB3561968A 1967-07-28 1968-07-25 Circuit arrangement for igniting and supplying a gas and/or vapour-discharge lamp Expired GB1208489A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6710431A NL162814C (en) 1967-07-28 1967-07-28 APPARATUS FOR IGNITION AND OPERATION OF A GAS AND / OR VAPOR DISCHARGE TUBE.

Publications (1)

Publication Number Publication Date
GB1208489A true GB1208489A (en) 1970-10-14

Family

ID=19800820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3561968A Expired GB1208489A (en) 1967-07-28 1968-07-25 Circuit arrangement for igniting and supplying a gas and/or vapour-discharge lamp

Country Status (8)

Country Link
AT (1) AT291391B (en)
BE (1) BE718701A (en)
CH (1) CH477801A (en)
DE (1) DE1764624C3 (en)
ES (1) ES356518A1 (en)
FR (1) FR1581149A (en)
GB (1) GB1208489A (en)
NL (1) NL162814C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942070A (en) * 1974-09-10 1976-03-02 Hitachi, Ltd. Electric discharge lamp lighting device
WO2007131625A1 (en) * 2006-05-12 2007-11-22 Heartsine Technologies Limited Switching circuit

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5037938B1 (en) * 1969-04-22 1975-12-05
NL179697C (en) * 1975-02-21 1986-10-16 Philips Nv DEVICE FOR IGNITION AND POWERING A GAS AND / OR VAPOR DISCHARGE LAMP.
JPS5636073Y1 (en) * 1975-07-10 1981-08-25
JPS5353325Y1 (en) * 1975-10-01 1978-12-20
NL7613356A (en) * 1976-12-01 1978-06-05 Philips Nv STARTER FOR IGNITIONING A GAS AND / OR VAPOR DISCHARGE LAMP.
DE3137940C2 (en) * 1981-09-24 1985-08-29 Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg Electronic ballast for at least one fluorescent lamp
GB2124042B (en) * 1982-06-01 1986-10-01 Control Logic Reduction of harmonics in gas discharge lamp ballasts

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942070A (en) * 1974-09-10 1976-03-02 Hitachi, Ltd. Electric discharge lamp lighting device
WO2007131625A1 (en) * 2006-05-12 2007-11-22 Heartsine Technologies Limited Switching circuit
AU2007250216B2 (en) * 2006-05-12 2010-11-18 Stryker European Operations Limited Switching circuit
AU2007250216B9 (en) * 2006-05-12 2011-05-26 Stryker European Operations Limited Switching circuit
US8209007B2 (en) 2006-05-12 2012-06-26 Heartsine Technologies Ltd. Switching circuit

Also Published As

Publication number Publication date
AT291391B (en) 1971-07-12
DE1764624A1 (en) 1971-09-09
NL162814C (en) 1980-06-16
DE1764624C3 (en) 1975-06-26
DE1764624B2 (en) 1974-10-17
BE718701A (en) 1969-01-27
FR1581149A (en) 1969-09-12
NL162814B (en) 1980-01-15
ES356518A1 (en) 1970-01-16
CH477801A (en) 1969-08-31
NL6710431A (en) 1969-01-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee