GB747877A - Improvements in or relating to circuits supplying electro-luminescent lighting panels - Google Patents

Improvements in or relating to circuits supplying electro-luminescent lighting panels

Info

Publication number
GB747877A
GB747877A GB2768/54A GB276854A GB747877A GB 747877 A GB747877 A GB 747877A GB 2768/54 A GB2768/54 A GB 2768/54A GB 276854 A GB276854 A GB 276854A GB 747877 A GB747877 A GB 747877A
Authority
GB
United Kingdom
Prior art keywords
panel
mains
oscillator
voltage
relating
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
GB2768/54A
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 Electrical Industries Ltd
Original Assignee
Philips Electrical 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 Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB747877A publication Critical patent/GB747877A/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
    • H05B44/00—Circuit arrangements for operating electroluminescent light sources
    • 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
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

747,877. Electroluminescence. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Jan. 29, 1954 [Feb. 3, 1953], No. 2768/54. Class 39 (1). [Also in Group XL (c)] An electroluminescent lighting panel is supplied with alternating voltage from an oscillator comprising capacitance and resistance and provided with inductive feedback. The panel 1 which also acts as a capacitor is connected in parallel with a tapped inductance 3 connected to the cathode grid and anode of a directly heated triode 2. Tapping 4 is connected to mains terminal 8 and capacitors 5, 6 and resistance 7 are connected to grid and cathode as shown. The circuit produces a peaky voltage curve with steep edges, the characteristics of which are discussed. In a modification (Fig. 3, not shown), one side of the panel is connected to the mains, and a switch permits the disconnection of the oscillator and the application of mains voltage for low illumination. The application of oscillator and mains voltage together reduces flicker. Two oscillations operating in phase opposition may also supply the electroluminescent panel (Fig. 4, not shown).
GB2768/54A 1953-02-03 1954-01-29 Improvements in or relating to circuits supplying electro-luminescent lighting panels Expired GB747877A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL747877X 1953-02-03

Publications (1)

Publication Number Publication Date
GB747877A true GB747877A (en) 1956-04-18

Family

ID=19822864

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2768/54A Expired GB747877A (en) 1953-02-03 1954-01-29 Improvements in or relating to circuits supplying electro-luminescent lighting panels

Country Status (1)

Country Link
GB (1) GB747877A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3012011A1 (en) * 1979-03-29 1980-10-09 Timex Corp LIGHTING DEVICE WITH AN ELECTROLUMINE SCENE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3012011A1 (en) * 1979-03-29 1980-10-09 Timex Corp LIGHTING DEVICE WITH AN ELECTROLUMINE SCENE

Similar Documents

Publication Publication Date Title
CN101171890A (en) Method and circuit for enabling dimming using triac dimmer
KR101070949B1 (en) Interface circuit for operating capacitive loads
US3787751A (en) Ballast circuits for discharge lamps
GB930082A (en) Improvements in transistor inverter circuits
GB747877A (en) Improvements in or relating to circuits supplying electro-luminescent lighting panels
CA2149327C (en) Circuit arrangement for operating low-pressure discharge lamps
SE7609953L (en) URL CHARGING LAMP
ES353276A1 (en) Method for operating fluorescent tubes
US3463965A (en) Gas discharge lamp starting circuit with a pise generator control
US2842715A (en) Fluorescent lamp lighting circuits
US2843804A (en) Device for supplying lighting panels
CN211509373U (en) LED linear constant current circuit based on double triodes
GB1385018A (en) Operating circuits for electric discharge lamps
GB683345A (en) Improvements in and relating to electric circuits
GB912181A (en) Improvements in or relating to circuit arrangements for fluorescent lamps
GB763316A (en) Improvements in or relating to transistor circuits for stabilizing voltage
GB720279A (en) Improvements in or relating to circuits for operating electric discharge lamps
GB1325361A (en) Electrical heating devices
GB1019066A (en) Improvements relating to the operation of electric discharge lamps from alternating current supplies
CN112506258A (en) Distributed voltage stabilizing circuit
GB743844A (en) Improvements in or relating to electric circuit arrangements for operating low pressure electric discharge lamps
GB743899A (en) Improvements in or relating to electric circuit arrangements for operating low pressure electric discharge lamps
GB829455A (en) Improvements in or relating to electric lighting installations
GB587660A (en) Circuit arrangements for electric discharge lamps
GB1428072A (en) Circuit arrangement for dc-operated fluorescent lamps