JPS5398789A - Compensation circuit for semiconductor light emitting element - Google Patents

Compensation circuit for semiconductor light emitting element

Info

Publication number
JPS5398789A
JPS5398789A JP1249377A JP1249377A JPS5398789A JP S5398789 A JPS5398789 A JP S5398789A JP 1249377 A JP1249377 A JP 1249377A JP 1249377 A JP1249377 A JP 1249377A JP S5398789 A JPS5398789 A JP S5398789A
Authority
JP
Japan
Prior art keywords
light emitting
emitting element
semiconductor light
compensation 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.)
Granted
Application number
JP1249377A
Other languages
Japanese (ja)
Other versions
JPS5714576B2 (en
Inventor
Masatsugu Suzuishi
Kazuo Murata
Iwao Okita
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP1249377A priority Critical patent/JPS5398789A/en
Publication of JPS5398789A publication Critical patent/JPS5398789A/en
Publication of JPS5714576B2 publication Critical patent/JPS5714576B2/ja
Granted 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/395—Linear regulators
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/18—Controlling the intensity of the light using temperature feedback
    • 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
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Led Devices (AREA)

Abstract

PURPOSE:To keep constant the quantity of light emission at all times by connecting a resistor of which resistance is varied with the changing rate of temperature to the forward voltage and current of element and that to the efficiency of light emisson, in series with the semiconductor light emitting element.
JP1249377A 1977-02-09 1977-02-09 Compensation circuit for semiconductor light emitting element Granted JPS5398789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1249377A JPS5398789A (en) 1977-02-09 1977-02-09 Compensation circuit for semiconductor light emitting element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1249377A JPS5398789A (en) 1977-02-09 1977-02-09 Compensation circuit for semiconductor light emitting element

Publications (2)

Publication Number Publication Date
JPS5398789A true JPS5398789A (en) 1978-08-29
JPS5714576B2 JPS5714576B2 (en) 1982-03-25

Family

ID=11806902

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1249377A Granted JPS5398789A (en) 1977-02-09 1977-02-09 Compensation circuit for semiconductor light emitting element

Country Status (1)

Country Link
JP (1) JPS5398789A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06294755A (en) * 1993-04-08 1994-10-21 Sharp Corp Method and circuit for automatic compensation of image quality

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6437188U (en) * 1987-08-28 1989-03-06
JPS6427358A (en) * 1988-07-08 1989-01-30 Aiphone Co Ltd Frequency division multiplex interphone transmission system
JP7152914B2 (en) 2018-09-14 2022-10-13 出光興産株式会社 Polycarbonate resin composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06294755A (en) * 1993-04-08 1994-10-21 Sharp Corp Method and circuit for automatic compensation of image quality

Also Published As

Publication number Publication date
JPS5714576B2 (en) 1982-03-25

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