GB1175252A - Improvements in or relating to High-Frequency Generators for Supplying Discharge Tubes. - Google Patents

Improvements in or relating to High-Frequency Generators for Supplying Discharge Tubes.

Info

Publication number
GB1175252A
GB1175252A GB6272/67A GB627267A GB1175252A GB 1175252 A GB1175252 A GB 1175252A GB 6272/67 A GB6272/67 A GB 6272/67A GB 627267 A GB627267 A GB 627267A GB 1175252 A GB1175252 A GB 1175252A
Authority
GB
United Kingdom
Prior art keywords
capacitor
lamp
thyristor
supply
circuit
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
GB6272/67A
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 GB1175252A publication Critical patent/GB1175252A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/25—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/27—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means for conversion of frequency
    • 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
    • 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
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with 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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/04—Sources of current
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Landscapes

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

Abstract

1,175,252. Supply systems for discharge tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 9 Feb., 1967 [12 Feb., 1966], No. 6272/67. Heading H2H. A circuit for striking and supplying a discharge lamp includes a high-frequency generator which operates by discharging a capacitor through a switching element such as a thyristor. In the circuit shown in Fig. 1, a mains supply is connected to terminals 1, 2 so that the capacitor 5 is charged through a coupling impedance 3 and the primary winding 4 of a transformer whose secondary is connected across the lamp 8. Before the peak voltage of the supply is reached, the potential at the gate of the thyristor. 6 becomes sufficient to trigger it, and the capacitor now discharges through the thyristor, the effective frequency being determined by the magnitudes of the inductor 4 and capacitor 5. A number of such chargedischarge cycles will occur in each half-wave of the mains supply. In a modification, Fig. 2 (not shown), the mains is also connected to the discharge lamp and the circuit is arranged so that the high frequency generator serves only to ignite the lamp. In this arrangement also, the lamp is provided with preheater cathodes.
GB6272/67A 1966-02-12 1967-02-09 Improvements in or relating to High-Frequency Generators for Supplying Discharge Tubes. Expired GB1175252A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6601803A NL6601803A (en) 1966-02-12 1966-02-12

Publications (1)

Publication Number Publication Date
GB1175252A true GB1175252A (en) 1969-12-23

Family

ID=19795717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6272/67A Expired GB1175252A (en) 1966-02-12 1967-02-09 Improvements in or relating to High-Frequency Generators for Supplying Discharge Tubes.

Country Status (10)

Country Link
AT (1) AT274959B (en)
BE (1) BE693960A (en)
CH (1) CH466431A (en)
DE (1) DE1589239C3 (en)
DK (1) DK120349B (en)
ES (1) ES336671A1 (en)
FR (1) FR1511279A (en)
GB (1) GB1175252A (en)
NL (1) NL6601803A (en)
SE (1) SE306576B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666942A1 (en) * 1990-09-17 1992-03-20 Gaboriaud Paul Resonant inverter in circuit continuity mode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666942A1 (en) * 1990-09-17 1992-03-20 Gaboriaud Paul Resonant inverter in circuit continuity mode

Also Published As

Publication number Publication date
DE1589239C3 (en) 1975-04-30
FR1511279A (en) 1968-01-26
DK120349B (en) 1971-05-17
NL6601803A (en) 1967-08-14
ES336671A1 (en) 1968-04-01
AT274959B (en) 1969-10-10
CH466431A (en) 1968-12-15
SE306576B (en) 1968-12-02
DE1589239A1 (en) 1970-06-04
DE1589239B2 (en) 1974-09-26
BE693960A (en) 1967-08-10

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Legal Events

Date Code Title Description
PS Patent sealed
PE Patent expired