JPS56110276A - Driving device for luminous diode - Google Patents

Driving device for luminous diode

Info

Publication number
JPS56110276A
JPS56110276A JP1277880A JP1277880A JPS56110276A JP S56110276 A JPS56110276 A JP S56110276A JP 1277880 A JP1277880 A JP 1277880A JP 1277880 A JP1277880 A JP 1277880A JP S56110276 A JPS56110276 A JP S56110276A
Authority
JP
Japan
Prior art keywords
luminous diode
transistor
luminous
driving device
given
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
JP1277880A
Other languages
Japanese (ja)
Other versions
JPS6138874B2 (en
Inventor
Masayuki Iwai
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1277880A priority Critical patent/JPS56110276A/en
Publication of JPS56110276A publication Critical patent/JPS56110276A/en
Publication of JPS6138874B2 publication Critical patent/JPS6138874B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors

Landscapes

  • Led Devices (AREA)

Abstract

PURPOSE:To arrange so that a luminous diode may not shed a light unnecessarily by keeping a transistor electrically turned on without fail with the assistance of a flip-flop so that no voltage may not be applied to the luminous diode, even if a power supply voltage were at low level. CONSTITUTION:Luminous diodes 1 to 4 are connected to between the emitters and collectors of transistors 5 to 8 respectively. The base of a transistor paired to a transistor whose base is given a high level, is given a high level. As this transistor is surely electrically turned on, the luminous diode will never be caused to light up by mistake.
JP1277880A 1980-02-04 1980-02-04 Driving device for luminous diode Granted JPS56110276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1277880A JPS56110276A (en) 1980-02-04 1980-02-04 Driving device for luminous diode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1277880A JPS56110276A (en) 1980-02-04 1980-02-04 Driving device for luminous diode

Publications (2)

Publication Number Publication Date
JPS56110276A true JPS56110276A (en) 1981-09-01
JPS6138874B2 JPS6138874B2 (en) 1986-09-01

Family

ID=11814858

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1277880A Granted JPS56110276A (en) 1980-02-04 1980-02-04 Driving device for luminous diode

Country Status (1)

Country Link
JP (1) JPS56110276A (en)

Also Published As

Publication number Publication date
JPS6138874B2 (en) 1986-09-01

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