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JPS5546873A - Light-triggered thyristor - Google Patents

Light-triggered thyristor

Info

Publication number
JPS5546873A
JPS5546873A JP11895678A JP11895678A JPS5546873A JP S5546873 A JPS5546873 A JP S5546873A JP 11895678 A JP11895678 A JP 11895678A JP 11895678 A JP11895678 A JP 11895678A JP S5546873 A JPS5546873 A JP S5546873A
Authority
JP
Japan
Prior art keywords
light
thyristor
emitting diode
turn
emit
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
JP11895678A
Other languages
Japanese (ja)
Other versions
JPS6311867B2 (en
Inventor
Keiji Kishi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11895678A priority Critical patent/JPS5546873A/en
Publication of JPS5546873A publication Critical patent/JPS5546873A/en
Publication of JPS6311867B2 publication Critical patent/JPS6311867B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electronic Switches (AREA)
  • Protection Of Static Devices (AREA)
  • Power Conversion In General (AREA)

Abstract

PURPOSE: To efficiently and stably turn on a light-triggered thyristor, by making the output level of light signal from a first light emitter variable by a light signal from a second light emitter which is caused to emit light by the turn-on of the thyristor.
CONSTITUTION: A light emission control circuit 1 comprises a transistor 12 and a phototransistor 21. A first light-emitting diode 2 is energized to emit light, which is supplied to a light-triggered thyristor 4 through a first light guide 3 to turn on the thyristor to supply an output to a load 5 and energize a second light-emitting diode to emit light. This light is supplied to the phototransistor 21 of the light emission control circuit 1 through a second light guide 9. As a result, the output time of light signal from the first light-emitting diode 2 can be shortened to reduce the decrease in its lifetime. Even if the output level of the diode 2 falls, the thyristor can be surely turned on.
COPYRIGHT: (C)1980,JPO&Japio
JP11895678A 1978-09-27 1978-09-27 Light-triggered thyristor Granted JPS5546873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11895678A JPS5546873A (en) 1978-09-27 1978-09-27 Light-triggered thyristor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11895678A JPS5546873A (en) 1978-09-27 1978-09-27 Light-triggered thyristor

Publications (2)

Publication Number Publication Date
JPS5546873A true JPS5546873A (en) 1980-04-02
JPS6311867B2 JPS6311867B2 (en) 1988-03-16

Family

ID=14749424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11895678A Granted JPS5546873A (en) 1978-09-27 1978-09-27 Light-triggered thyristor

Country Status (1)

Country Link
JP (1) JPS5546873A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5772372A (en) * 1980-10-23 1982-05-06 Toshiba Corp Monitoring method for light signal of optical thyristor transducer
JPS57145570A (en) * 1981-01-30 1982-09-08 Toshiba Corp Detection of abnormal photothyristor in converting unit
JPS57180368A (en) * 1981-04-28 1982-11-06 Matsushita Electric Works Ltd Light controller
JPS58175971A (en) * 1982-04-05 1983-10-15 Toshiba Corp Triggering method for photothyristor
JPH08142493A (en) * 1994-11-14 1996-06-04 Kondo Corp:Kk Flexible transfer seal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS494788A (en) * 1972-04-27 1974-01-16
JPS5361023A (en) * 1976-11-12 1978-06-01 Toshiba Corp Thyristor converter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS494788A (en) * 1972-04-27 1974-01-16
JPS5361023A (en) * 1976-11-12 1978-06-01 Toshiba Corp Thyristor converter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5772372A (en) * 1980-10-23 1982-05-06 Toshiba Corp Monitoring method for light signal of optical thyristor transducer
JPS57145570A (en) * 1981-01-30 1982-09-08 Toshiba Corp Detection of abnormal photothyristor in converting unit
JPS6337577B2 (en) * 1981-01-30 1988-07-26 Tokyo Shibaura Electric Co
JPS57180368A (en) * 1981-04-28 1982-11-06 Matsushita Electric Works Ltd Light controller
JPH0328151B2 (en) * 1981-04-28 1991-04-18 Matsushita Electric Works Ltd
JPS58175971A (en) * 1982-04-05 1983-10-15 Toshiba Corp Triggering method for photothyristor
JPH08142493A (en) * 1994-11-14 1996-06-04 Kondo Corp:Kk Flexible transfer seal

Also Published As

Publication number Publication date
JPS6311867B2 (en) 1988-03-16

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