FR2237394A1 - Lamps intensity control and switch system - has large button acting as switch and moving potentiometer slider to control shunt triac. - Google Patents

Lamps intensity control and switch system - has large button acting as switch and moving potentiometer slider to control shunt triac.

Info

Publication number
FR2237394A1
FR2237394A1 FR7325534A FR7325534A FR2237394A1 FR 2237394 A1 FR2237394 A1 FR 2237394A1 FR 7325534 A FR7325534 A FR 7325534A FR 7325534 A FR7325534 A FR 7325534A FR 2237394 A1 FR2237394 A1 FR 2237394A1
Authority
FR
France
Prior art keywords
switch
control
triac
large button
potentiometer
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Withdrawn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
FR7325534A
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.)
TRINH XUAN DIEU FR
Original Assignee
TRINH XUAN DIEU FR
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 TRINH XUAN DIEU FR filed Critical TRINH XUAN DIEU FR
Priority to FR7325534A priority Critical patent/FR2237394A1/en
Publication of FR2237394A1 publication Critical patent/FR2237394A1/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Withdrawn legal-status Critical Current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
    • 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

Abstract

The intensity control and switch system, for lamps, has a large button (B) operating both the supply switch and a potentiometer slider. The potentiometer (P) is coupled in series with a capacitor (C) across the a.c. supply to form an RC circuit whose time constant varies with the potentiometer setting. A triac (TR) is also connected across the supply and acts as a regulating shunt for the current through the lamp. the triac gate is connected over a diac (D1) to the junction between potentiometer and capacitor. The control allows the lamp intensity to be varied between very bright and very dim.
FR7325534A 1973-07-12 1973-07-12 Lamps intensity control and switch system - has large button acting as switch and moving potentiometer slider to control shunt triac. Withdrawn FR2237394A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7325534A FR2237394A1 (en) 1973-07-12 1973-07-12 Lamps intensity control and switch system - has large button acting as switch and moving potentiometer slider to control shunt triac.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7325534A FR2237394A1 (en) 1973-07-12 1973-07-12 Lamps intensity control and switch system - has large button acting as switch and moving potentiometer slider to control shunt triac.

Publications (1)

Publication Number Publication Date
FR2237394A1 true FR2237394A1 (en) 1975-02-07

Family

ID=9122460

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7325534A Withdrawn FR2237394A1 (en) 1973-07-12 1973-07-12 Lamps intensity control and switch system - has large button acting as switch and moving potentiometer slider to control shunt triac.

Country Status (1)

Country Link
FR (1) FR2237394A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990002472A1 (en) * 1988-08-26 1990-03-08 Bowden, Brett, Antony Reduced power switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990002472A1 (en) * 1988-08-26 1990-03-08 Bowden, Brett, Antony Reduced power switch

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Legal Events

Date Code Title Description
ST Notification of lapse