GB8928897D0 - Control of fluorescent lights etc - Google Patents

Control of fluorescent lights etc

Info

Publication number
GB8928897D0
GB8928897D0 GB898928897A GB8928897A GB8928897D0 GB 8928897 D0 GB8928897 D0 GB 8928897D0 GB 898928897 A GB898928897 A GB 898928897A GB 8928897 A GB8928897 A GB 8928897A GB 8928897 D0 GB8928897 D0 GB 8928897D0
Authority
GB
United Kingdom
Prior art keywords
control
fluorescent lights
lights etc
fluorescent
lights
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.)
Withdrawn
Application number
GB898928897A
Other versions
GB2226463A (en
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.)
YAZDANIAN SIROUS
Original Assignee
YAZDANIAN SIROUS
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 YAZDANIAN SIROUS filed Critical YAZDANIAN SIROUS
Publication of GB8928897D0 publication Critical patent/GB8928897D0/en
Publication of GB2226463A publication Critical patent/GB2226463A/en
Withdrawn legal-status Critical Current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
    • H05B41/26—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
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • 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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3922—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations and measurement of the incident light
GB8928897A 1988-12-21 1989-12-21 Control of fluorescent lights Withdrawn GB2226463A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888829844A GB8829844D0 (en) 1988-12-21 1988-12-21 Control of fluorescent lights etc

Publications (2)

Publication Number Publication Date
GB8928897D0 true GB8928897D0 (en) 1990-02-28
GB2226463A GB2226463A (en) 1990-06-27

Family

ID=10648896

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888829844A Pending GB8829844D0 (en) 1988-12-21 1988-12-21 Control of fluorescent lights etc
GB8928897A Withdrawn GB2226463A (en) 1988-12-21 1989-12-21 Control of fluorescent lights

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888829844A Pending GB8829844D0 (en) 1988-12-21 1988-12-21 Control of fluorescent lights etc

Country Status (1)

Country Link
GB (2) GB8829844D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1097613B1 (en) * 1998-03-27 2003-03-05 Gapwoo Hwang Electronic ballast for high intensity discharge lamp
GB9825296D0 (en) 1998-11-18 1999-01-13 Microlights Ltd A improvement to electrical lamps
GB9825298D0 (en) * 1998-11-18 1999-01-13 Microlights Ltd An electronic ballast
GB9825299D0 (en) * 1998-11-18 1999-01-13 Microlights Ltd Improvements to electrical lamps
IT1313814B1 (en) * 1999-11-03 2002-09-23 Beghelli Spa AUTOMATIC DEVICE FOR ADJUSTING THE LIGHT INTENSITY

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059064B1 (en) * 1981-02-21 1985-10-02 THORN EMI plc Lamp driver circuits
NL8102364A (en) * 1981-05-14 1982-12-01 Philips Nv ELECTRICAL DEVICE FOR IGNITING AND POWERING ONE OF TWO PREHEATABLE ELECTRODES GAS AND / OR VAPOR DISCHARGE LAMP.
GB2117192B (en) * 1982-02-26 1986-01-02 Transtar Limited Lamp control circuit
DE3301108A1 (en) * 1983-01-14 1984-07-19 Siemens AG, 1000 Berlin und 8000 München METHOD FOR OPERATING A GAS DISCHARGE LAMP
DE3319352A1 (en) * 1983-05-27 1984-11-29 Siemens AG, 1000 Berlin und 8000 München INVERTER FOR POWERING DISCHARGE LAMPS
EP0265431A1 (en) * 1985-07-23 1988-05-04 WOLF, Karl Circuit for starting and operating at least one low-pressure or high-pressure gas discharge lamp with high-frequnency oscillations
FR2607996B1 (en) * 1986-12-04 1989-03-10 Perche Ets METHOD AND DEVICE FOR IGNITION OF DISCHARGE LAMPS
GB2211038A (en) * 1987-10-14 1989-06-21 Sum Wing Lau Protective electronic ballast circuit for fluorescent lamps

Also Published As

Publication number Publication date
GB8829844D0 (en) 1989-02-15
GB2226463A (en) 1990-06-27

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)