GB2025715B - Lighting circuit - Google Patents

Lighting circuit

Info

Publication number
GB2025715B
GB2025715B GB7829688A GB7829688A GB2025715B GB 2025715 B GB2025715 B GB 2025715B GB 7829688 A GB7829688 A GB 7829688A GB 7829688 A GB7829688 A GB 7829688A GB 2025715 B GB2025715 B GB 2025715B
Authority
GB
United Kingdom
Prior art keywords
lighting circuit
lighting
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
GB7829688A
Other versions
GB2025715A (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB2025715A publication Critical patent/GB2025715A/en
Application granted granted Critical
Publication of GB2025715B publication Critical patent/GB2025715B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/725—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for ac voltages or currents
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
    • H03K17/79—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar semiconductor switches with more than two PN-junctions, or more than three electrodes, or more than one electrode connected to the same conductivity region
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
    • H03K17/795—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors
    • H03K17/7955—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors using phototransistors
    • 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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/08—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in 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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/09—Circuit arrangements or apparatus for operating incandescent light sources in which the lamp is fed by pulses
GB7829688A 1977-01-12 1978-07-13 Lighting circuit Expired GB2025715B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP222777 1977-01-12

Publications (2)

Publication Number Publication Date
GB2025715A GB2025715A (en) 1980-01-23
GB2025715B true GB2025715B (en) 1982-09-02

Family

ID=11523459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7829688A Expired GB2025715B (en) 1977-01-12 1978-07-13 Lighting circuit

Country Status (3)

Country Link
DE (1) DE2830682A1 (en)
FR (1) FR2431092A1 (en)
GB (1) GB2025715B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9308615U1 (en) * 1993-06-09 1993-08-26 Luenow Rosemarie Portable electric light
GB2347563A (en) * 1999-03-02 2000-09-06 James Kembal Davidson Flame flicker simulation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3495128A (en) * 1966-01-07 1970-02-10 Douglas G Gresham Random power gate
US3710182A (en) * 1971-04-30 1973-01-09 Reenen R Van Circuit producing candle-flicker light output from lamp

Also Published As

Publication number Publication date
GB2025715A (en) 1980-01-23
FR2431092A1 (en) 1980-02-08
DE2830682A1 (en) 1980-01-24
FR2431092B1 (en) 1984-02-24

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Legal Events

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