JPS5654791A - Light source driving circuit - Google Patents

Light source driving circuit

Info

Publication number
JPS5654791A
JPS5654791A JP13025679A JP13025679A JPS5654791A JP S5654791 A JPS5654791 A JP S5654791A JP 13025679 A JP13025679 A JP 13025679A JP 13025679 A JP13025679 A JP 13025679A JP S5654791 A JPS5654791 A JP S5654791A
Authority
JP
Japan
Prior art keywords
light source
driving circuit
source driving
circuit
light
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
JP13025679A
Other languages
English (en)
Inventor
Tadashi Sasaki
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.)
Fujinon Corp
Original Assignee
Fuji Photo Optical Co 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 Fuji Photo Optical Co Ltd filed Critical Fuji Photo Optical Co Ltd
Priority to JP13025679A priority Critical patent/JPS5654791A/ja
Priority to FR8021489A priority patent/FR2467441A1/fr
Priority to DE19803037957 priority patent/DE3037957C2/de
Publication of JPS5654791A publication Critical patent/JPS5654791A/ja
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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/02—Switching on, e.g. with predetermined rate of increase of lighting current
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/66—Regulating electric power

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
JP13025679A 1979-10-09 1979-10-09 Light source driving circuit Pending JPS5654791A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP13025679A JPS5654791A (en) 1979-10-09 1979-10-09 Light source driving circuit
FR8021489A FR2467441A1 (fr) 1979-10-09 1980-10-08 Circuit de commande d'une source lumineuse
DE19803037957 DE3037957C2 (de) 1979-10-09 1980-10-08 Schaltung zur Konstanthaltung der einer Lampe zugeführten elektrischen Leistung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13025679A JPS5654791A (en) 1979-10-09 1979-10-09 Light source driving circuit

Publications (1)

Publication Number Publication Date
JPS5654791A true JPS5654791A (en) 1981-05-14

Family

ID=15029899

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13025679A Pending JPS5654791A (en) 1979-10-09 1979-10-09 Light source driving circuit

Country Status (3)

Country Link
JP (1) JPS5654791A (ja)
DE (1) DE3037957C2 (ja)
FR (1) FR2467441A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60130098A (ja) * 1983-12-16 1985-07-11 株式会社日立製作所 照明装置の照明照度切換回路

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4421993A (en) * 1982-05-28 1983-12-20 General Electric Company Load resistance control circuitry
US4987348A (en) * 1989-12-15 1991-01-22 North American Philips Corporation Bilevel current limiter
DE4041338A1 (de) * 1990-12-21 1992-06-25 Bayerische Motoren Werke Ag Verfahren zur steigerung der wahrnehmbarkeit einer signalleuchte an kraftfahrzeugen
DE4327767C2 (de) * 1993-05-17 1996-06-20 Bosch Gmbh Robert Handscheinwerfer mit als Mikroprozessor ausgebildeter Regelungseinrichtung
DE10023950A1 (de) * 2000-05-16 2001-11-22 Bosch Gmbh Robert Halbleiter-Bauelement
KR20040077211A (ko) 2003-02-28 2004-09-04 삼성전자주식회사 표시 장치용 광원의 구동 장치

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50146851A (ja) * 1974-05-16 1975-11-25
JPS5039075B1 (ja) * 1969-12-31 1975-12-13

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US156166A (en) * 1874-10-20 Improvement in lathes for turning hubs
DD106122A1 (ja) * 1973-07-31 1974-05-20
US4101808A (en) * 1975-09-30 1978-07-18 Bell & Howell Company Lamp control circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5039075B1 (ja) * 1969-12-31 1975-12-13
JPS50146851A (ja) * 1974-05-16 1975-11-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60130098A (ja) * 1983-12-16 1985-07-11 株式会社日立製作所 照明装置の照明照度切換回路

Also Published As

Publication number Publication date
FR2467441B1 (ja) 1984-01-20
DE3037957A1 (de) 1981-04-23
FR2467441A1 (fr) 1981-04-17
DE3037957C2 (de) 1983-12-15

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