FR2362553A1 - Lamp supply current from battery - has switch connecting lamp in pulses with ON-OFF ratio depending on feedback signal (NL 21.2.78) - Google Patents

Lamp supply current from battery - has switch connecting lamp in pulses with ON-OFF ratio depending on feedback signal (NL 21.2.78)

Info

Publication number
FR2362553A1
FR2362553A1 FR7725033A FR7725033A FR2362553A1 FR 2362553 A1 FR2362553 A1 FR 2362553A1 FR 7725033 A FR7725033 A FR 7725033A FR 7725033 A FR7725033 A FR 7725033A FR 2362553 A1 FR2362553 A1 FR 2362553A1
Authority
FR
France
Prior art keywords
battery
lamp
ratio depending
pulses
feedback signal
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Withdrawn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
FR7725033A
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.)
Royal Industries Co Ltd
Royal Industries Inc
Original Assignee
Royal Industries Co Ltd
Royal Industries Inc
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
Priority claimed from US05/752,689 external-priority patent/US4156166A/en
Application filed by Royal Industries Co Ltd, Royal Industries Inc filed Critical Royal Industries Co Ltd
Publication of FR2362553A1 publication Critical patent/FR2362553A1/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Withdrawn legal-status Critical Current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
    • H05B39/041—Controlling the light-intensity of the source
    • H05B39/044—Controlling the light-intensity of the source continuously
    • H05B39/047—Controlling the light-intensity of the source continuously with pulse width modulation from a DC power source
    • 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

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

Battery voltage for e.g. traffic signalling in motor vehicles has a tendency to fall as the battery runs down. The present system makes best use of the battery by devices delivering a feed-back signal representative of a lamp operation factor. A switching unit between the battery relatively constant light flux over a wide range of source voltage. The switch connects the lamp pulse-like, with the on-off ratio depending on the feed-back signal.
FR7725033A 1976-08-18 1977-08-16 Lamp supply current from battery - has switch connecting lamp in pulses with ON-OFF ratio depending on feedback signal (NL 21.2.78) Withdrawn FR2362553A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71562976A 1976-08-18 1976-08-18
US05/752,689 US4156166A (en) 1976-08-18 1976-12-20 Method and apparatus for saving energy

Publications (1)

Publication Number Publication Date
FR2362553A1 true FR2362553A1 (en) 1978-03-17

Family

ID=27109388

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7725033A Withdrawn FR2362553A1 (en) 1976-08-18 1977-08-16 Lamp supply current from battery - has switch connecting lamp in pulses with ON-OFF ratio depending on feedback signal (NL 21.2.78)

Country Status (7)

Country Link
JP (1) JPS5326483A (en)
AU (1) AU502209B2 (en)
DE (1) DE2736859A1 (en)
FI (1) FI772029A (en)
FR (1) FR2362553A1 (en)
NL (1) NL7708244A (en)
SE (1) SE7709069L (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004125A1 (en) * 1978-02-04 1979-09-19 Hambro Machinery Limited Apparatus for separating airborne matter
FR2466933A1 (en) * 1979-09-28 1981-04-10 Papet Martin Trafficator controller - checks correct current in lamp circuit by comparing phase of pulse train from current controlled trigger with flashing frequency
EP0401911A1 (en) * 1989-06-07 1990-12-12 Koninklijke Philips Electronics N.V. Switching device
FR2741729A1 (en) * 1995-11-23 1997-05-30 Saft Nife Iberica Method to obtain constant voltage from variable DC source for lighting applications
EP1050965A2 (en) * 1999-05-03 2000-11-08 STMicroelectronics GmbH Electrical circuit for driving a load

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4237405A (en) * 1978-03-10 1980-12-02 Lear Siegler, Inc. Method and apparatus for conserving energy
JPS56105347A (en) * 1980-01-21 1981-08-21 Nec Corp Magnetic tape running control device
BR8204205A (en) * 1982-07-16 1984-02-21 Icotron Sa SOLAR POWERED LIQUID PUMPING SYSTEM
DE3325742A1 (en) * 1983-07-16 1985-01-24 Vdo Adolf Schindling Ag, 6000 Frankfurt ELECTRICAL CIRCUIT ARRANGEMENT FOR CONTROLLING A DC CURRENT, IN PARTICULAR FOR BRIGHTNESS-CHANGEABLE FITTING LIGHTING OF VEHICLES
WO1990013879A1 (en) * 1989-05-05 1990-11-15 James Timothy Toohey Location marker
US5203521A (en) * 1989-05-12 1993-04-20 Day Terence R Annular body aircraft
DE19854416A1 (en) * 1998-11-25 2000-05-31 Linde Ag Voltage converter and industrial truck with DC voltage supply
DE102012022204A1 (en) * 2012-11-13 2014-05-15 Jungheinrich Aktiengesellschaft Voltage converter for connecting electrical load to supply voltage, has clock generator that adjusts pulse width for electrical consumer, such that power supplied to load does not exceeds the rated voltage of load on average over time

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1489822A (en) * 1966-06-14 1967-07-28 Brion Leroux & Cie Ets Voltage regulator device particularly applicable to lighting networks supplied by a direct voltage source
FR1556312A (en) * 1967-12-14 1969-02-07
US3597652A (en) * 1969-01-14 1971-08-03 Eg & G Inc Apparatus for maintaining the temperature and operating a calibrated lamp in a constant resistance mode
US3931567A (en) * 1974-02-08 1976-01-06 Warwick Electronics Inc. DC power supply with load current regulation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4961973A (en) * 1972-10-16 1974-06-15
JPS5223170U (en) * 1975-08-07 1977-02-18

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1489822A (en) * 1966-06-14 1967-07-28 Brion Leroux & Cie Ets Voltage regulator device particularly applicable to lighting networks supplied by a direct voltage source
FR1556312A (en) * 1967-12-14 1969-02-07
US3597652A (en) * 1969-01-14 1971-08-03 Eg & G Inc Apparatus for maintaining the temperature and operating a calibrated lamp in a constant resistance mode
US3931567A (en) * 1974-02-08 1976-01-06 Warwick Electronics Inc. DC power supply with load current regulation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004125A1 (en) * 1978-02-04 1979-09-19 Hambro Machinery Limited Apparatus for separating airborne matter
FR2466933A1 (en) * 1979-09-28 1981-04-10 Papet Martin Trafficator controller - checks correct current in lamp circuit by comparing phase of pulse train from current controlled trigger with flashing frequency
EP0401911A1 (en) * 1989-06-07 1990-12-12 Koninklijke Philips Electronics N.V. Switching device
FR2741729A1 (en) * 1995-11-23 1997-05-30 Saft Nife Iberica Method to obtain constant voltage from variable DC source for lighting applications
EP1050965A2 (en) * 1999-05-03 2000-11-08 STMicroelectronics GmbH Electrical circuit for driving a load
EP1050965A3 (en) * 1999-05-03 2002-03-06 STMicroelectronics GmbH Electrical circuit for driving a load

Also Published As

Publication number Publication date
AU502209B2 (en) 1979-07-19
JPS5326483A (en) 1978-03-11
NL7708244A (en) 1978-02-21
FI772029A (en) 1978-02-19
AU2798377A (en) 1979-02-22
SE7709069L (en) 1978-02-19
DE2736859A1 (en) 1978-02-23

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Legal Events

Date Code Title Description
ST Notification of lapse