FR2456455A1 - Power control for electric discharge lamp - includes transformer in series with supply line, with secondary winding connected to switchable inductance - Google Patents

Power control for electric discharge lamp - includes transformer in series with supply line, with secondary winding connected to switchable inductance

Info

Publication number
FR2456455A1
FR2456455A1 FR7911925A FR7911925A FR2456455A1 FR 2456455 A1 FR2456455 A1 FR 2456455A1 FR 7911925 A FR7911925 A FR 7911925A FR 7911925 A FR7911925 A FR 7911925A FR 2456455 A1 FR2456455 A1 FR 2456455A1
Authority
FR
France
Prior art keywords
inductance
transformer
series
secondary winding
self
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.)
Pending
Application number
FR7911925A
Other languages
French (fr)
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
Priority to FR7911925A priority Critical patent/FR2456455A1/en
Publication of FR2456455A1 publication Critical patent/FR2456455A1/en
Pending 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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

The circuit for controlling the operation of an electric discharge lamp includes the lamp itself stabilised by a self-inductance (2) in series compensated by a capacitor (3) in parallel with the self inductance and lamp. An impedance comprising a current transformer (4) is connected in series with the supply line. The secondary winding of this transformer is connected to a self-inductance (5) which may be short-circuited by a switch (6). The assembly is powered by the mains voltage (VR) and provides an operating voltage (VU). If the self-inductance (5) is zero (switch closed) the primary winding of the transformer provides a very small opposing voltage corresponding to the short circuit voltage of the transformer. If the switch is open, the impedance (5) is in use and the demagnetising current passing through the secondary winding diminishes. As a result the primary winding of the transformer provides an opposing voltage. The circuit reduces the power drawn by such a lamp.
FR7911925A 1979-05-10 1979-05-10 Power control for electric discharge lamp - includes transformer in series with supply line, with secondary winding connected to switchable inductance Pending FR2456455A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7911925A FR2456455A1 (en) 1979-05-10 1979-05-10 Power control for electric discharge lamp - includes transformer in series with supply line, with secondary winding connected to switchable inductance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7911925A FR2456455A1 (en) 1979-05-10 1979-05-10 Power control for electric discharge lamp - includes transformer in series with supply line, with secondary winding connected to switchable inductance

Publications (1)

Publication Number Publication Date
FR2456455A1 true FR2456455A1 (en) 1980-12-05

Family

ID=9225312

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7911925A Pending FR2456455A1 (en) 1979-05-10 1979-05-10 Power control for electric discharge lamp - includes transformer in series with supply line, with secondary winding connected to switchable inductance

Country Status (1)

Country Link
FR (1) FR2456455A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552597A1 (en) * 1983-09-23 1985-03-29 Degremont Sa ELECTRIC POWER SUPPLY DEVICE FOR OZONE GENERATOR

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552597A1 (en) * 1983-09-23 1985-03-29 Degremont Sa ELECTRIC POWER SUPPLY DEVICE FOR OZONE GENERATOR
EP0136225A1 (en) * 1983-09-23 1985-04-03 "DEGREMONT" Société dite: Power supply circuit for an ozone generator
US4587591A (en) * 1983-09-23 1986-05-06 Degremont Power supply for ozone generator

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