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CH577779A5 - - Google Patents

Info

Publication number
CH577779A5
CH577779A5 CH1416574A CH1416574A CH577779A5 CH 577779 A5 CH577779 A5 CH 577779A5 CH 1416574 A CH1416574 A CH 1416574A CH 1416574 A CH1416574 A CH 1416574A CH 577779 A5 CH577779 A5 CH 577779A5
Authority
CH
Switzerland
Application number
CH1416574A
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Priority to CH1416574A priority Critical patent/CH577779A5/xx
Priority to DE19742453253 priority patent/DE2453253A1/en
Publication of CH577779A5 publication Critical patent/CH577779A5/xx

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
CH1416574A 1974-10-23 1974-10-23 CH577779A5 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH1416574A CH577779A5 (en) 1974-10-23 1974-10-23
DE19742453253 DE2453253A1 (en) 1974-10-23 1974-11-09 Ballast unit for ignition of fluorescent lamps - cathodes heated before ignition while ignition is by circuit interruption

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1416574A CH577779A5 (en) 1974-10-23 1974-10-23

Publications (1)

Publication Number Publication Date
CH577779A5 true CH577779A5 (en) 1976-07-15

Family

ID=4398521

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1416574A CH577779A5 (en) 1974-10-23 1974-10-23

Country Status (2)

Country Link
CH (1) CH577779A5 (en)
DE (1) DE2453253A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078790A2 (en) * 1981-11-02 1983-05-11 Franz Wittmann Electronic ignition circuit for gas discharge lamps

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476410A1 (en) * 1979-12-19 1981-08-21 Elam Ltd SUPPLY CIRCUIT, IN PARTICULAR OF A DISCHARGE LAMP
DE3009725A1 (en) * 1980-03-13 1981-09-17 Vossloh-Werke Gmbh, 5980 Werdohl Fluorescent lamp electronic starting and protection circuit - has bistable, astable and monostable sawtooth waveform generators to operate thyristor firing transistor
FR2498408A2 (en) * 1981-01-20 1982-07-23 Lampes Sa Fluorescent lamps ballast circuit - uses complementary monostable multivibrators formed from gates on CMOS integrated circuit to prevent simultaneous pre-heat and ignition
NL8101408A (en) * 1981-03-23 1982-10-18 Philips Nv ELECTRICAL DEVICE WITH AT LEAST A LOW-PRESSURE MERCURY VAPOR DISCHARGE TUBE.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078790A2 (en) * 1981-11-02 1983-05-11 Franz Wittmann Electronic ignition circuit for gas discharge lamps
EP0078790A3 (en) * 1981-11-02 1983-09-21 Franz Wittmann Electronic ignition circuit for gas discharge lamps

Also Published As

Publication number Publication date
DE2453253A1 (en) 1976-04-29

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Legal Events

Date Code Title Description
PL Patent ceased