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JPS5350988A - Driving circuit of light emitting diode - Google Patents

Driving circuit of light emitting diode

Info

Publication number
JPS5350988A
JPS5350988A JP12649076A JP12649076A JPS5350988A JP S5350988 A JPS5350988 A JP S5350988A JP 12649076 A JP12649076 A JP 12649076A JP 12649076 A JP12649076 A JP 12649076A JP S5350988 A JPS5350988 A JP S5350988A
Authority
JP
Japan
Prior art keywords
light emitting
emitting diode
driving circuit
terminals
circuit
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
JP12649076A
Other languages
Japanese (ja)
Inventor
Hiroshi Matsunaga
Shinichiro Obara
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
Original Assignee
Fujitsu 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 filed Critical Fujitsu Ltd
Priority to JP12649076A priority Critical patent/JPS5350988A/en
Publication of JPS5350988A publication Critical patent/JPS5350988A/en
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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits

Landscapes

  • Led Devices (AREA)

Abstract

PURPOSE:To perform selective light emission with a simple circuit by connecting respective one terminals of two light emitting diodes to a power supply through one resistor and connecting the other terminals of the two diodes to a voltage level shifting circuit and a logical operation circuit having one output terminal showing two levels of high and low respectively.
JP12649076A 1976-10-20 1976-10-20 Driving circuit of light emitting diode Pending JPS5350988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12649076A JPS5350988A (en) 1976-10-20 1976-10-20 Driving circuit of light emitting diode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12649076A JPS5350988A (en) 1976-10-20 1976-10-20 Driving circuit of light emitting diode

Publications (1)

Publication Number Publication Date
JPS5350988A true JPS5350988A (en) 1978-05-09

Family

ID=14936487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12649076A Pending JPS5350988A (en) 1976-10-20 1976-10-20 Driving circuit of light emitting diode

Country Status (1)

Country Link
JP (1) JPS5350988A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5655887U (en) * 1979-10-04 1981-05-15
JPS5923760U (en) * 1982-08-06 1984-02-14 株式会社ケンウッド Light emitting diode switching circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5655887U (en) * 1979-10-04 1981-05-15
JPS6241341Y2 (en) * 1979-10-04 1987-10-22
JPS5923760U (en) * 1982-08-06 1984-02-14 株式会社ケンウッド Light emitting diode switching circuit

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