JPS5416991A - Driving circuit of light emitting diodes by cml elements - Google Patents

Driving circuit of light emitting diodes by cml elements

Info

Publication number
JPS5416991A
JPS5416991A JP8158377A JP8158377A JPS5416991A JP S5416991 A JPS5416991 A JP S5416991A JP 8158377 A JP8158377 A JP 8158377A JP 8158377 A JP8158377 A JP 8158377A JP S5416991 A JPS5416991 A JP S5416991A
Authority
JP
Japan
Prior art keywords
light emitting
cml
driving circuit
emitting diodes
elements
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
JP8158377A
Other languages
Japanese (ja)
Other versions
JPS6036113B2 (en
Inventor
Shuichi Hashimoto
Kyoichi Iwasa
Naoharu Horino
Takashi Tokura
Kazumasa Okamura
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.)
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon Electric 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 Fujitsu Ltd, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP52081583A priority Critical patent/JPS6036113B2/en
Publication of JPS5416991A publication Critical patent/JPS5416991A/en
Publication of JPS6036113B2 publication Critical patent/JPS6036113B2/en
Expired 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]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • 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

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Led Devices (AREA)

Abstract

PURPOSE:To obtain a driving circuit of light emitting diodes by CML elements without requiring any special power source other than CML system power source by enabling flickering of the light emitting diode to be performed positively by shifting the output level of the CML element.
JP52081583A 1977-07-08 1977-07-08 Light emitting diode drive circuit using CML elements Expired JPS6036113B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52081583A JPS6036113B2 (en) 1977-07-08 1977-07-08 Light emitting diode drive circuit using CML elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52081583A JPS6036113B2 (en) 1977-07-08 1977-07-08 Light emitting diode drive circuit using CML elements

Publications (2)

Publication Number Publication Date
JPS5416991A true JPS5416991A (en) 1979-02-07
JPS6036113B2 JPS6036113B2 (en) 1985-08-19

Family

ID=13750332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52081583A Expired JPS6036113B2 (en) 1977-07-08 1977-07-08 Light emitting diode drive circuit using CML elements

Country Status (1)

Country Link
JP (1) JPS6036113B2 (en)

Also Published As

Publication number Publication date
JPS6036113B2 (en) 1985-08-19

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