JPS5553176A - Thyristor converter - Google Patents

Thyristor converter

Info

Publication number
JPS5553176A
JPS5553176A JP12431478A JP12431478A JPS5553176A JP S5553176 A JPS5553176 A JP S5553176A JP 12431478 A JP12431478 A JP 12431478A JP 12431478 A JP12431478 A JP 12431478A JP S5553176 A JPS5553176 A JP S5553176A
Authority
JP
Japan
Prior art keywords
thyristor
light
photo thyristor
signal
photo
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
JP12431478A
Other languages
Japanese (ja)
Other versions
JPS6019230B2 (en
Inventor
Atsuo Kobayashi
Tadashi Takahashi
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 JP12431478A priority Critical patent/JPS6019230B2/en
Publication of JPS5553176A publication Critical patent/JPS5553176A/en
Publication of JPS6019230B2 publication Critical patent/JPS6019230B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To improve responsibility of a thyristor converter by triggering by gate control light signals a photo thyristor having a gate part which gives light signals of two guides while triggering it forcedly by light signals of an overvoltage detecting circuit equipped in parallel with the photothyristor.
CONSTITUTION: A gate control signal produced by a signal generator 2 is converted into a light signal by a light emitting device 3 and this light signal is supplied to a photo thyristor 1 through a light guide 4. The photo thyristor 1 turns on and the thyristor converter is brought into prescribed motion. On the other hand, if a forward overvoltage is added to the photo thyristor 1 during operation of the thyristor conveter or during the floating, the prescribed current is applied to a light emitting device 6 and a light signal produces. This light signal makes a trigger signal given to the gate part of the photo thyristor 1 through a light guide 5, turns on the photo thyristor 1 and protects the photo thyristor form the forward overvoltage.
COPYRIGHT: (C)1980,JPO&Japio
JP12431478A 1978-10-09 1978-10-09 thyristor converter Expired JPS6019230B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12431478A JPS6019230B2 (en) 1978-10-09 1978-10-09 thyristor converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12431478A JPS6019230B2 (en) 1978-10-09 1978-10-09 thyristor converter

Publications (2)

Publication Number Publication Date
JPS5553176A true JPS5553176A (en) 1980-04-18
JPS6019230B2 JPS6019230B2 (en) 1985-05-15

Family

ID=14882255

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12431478A Expired JPS6019230B2 (en) 1978-10-09 1978-10-09 thyristor converter

Country Status (1)

Country Link
JP (1) JPS6019230B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5911772A (en) * 1982-07-12 1984-01-21 Kansai Electric Power Co Inc:The Overvoltage protecting device of optically firing thyristor
JPH0421353A (en) * 1990-05-14 1992-01-24 Toshiba Corp Method for protecting thyristor valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5911772A (en) * 1982-07-12 1984-01-21 Kansai Electric Power Co Inc:The Overvoltage protecting device of optically firing thyristor
JPH0258849B2 (en) * 1982-07-12 1990-12-10 Kansai Denryoku Kk
JPH0421353A (en) * 1990-05-14 1992-01-24 Toshiba Corp Method for protecting thyristor valve
JPH0793811B2 (en) * 1990-05-14 1995-10-09 株式会社東芝 Thyristor valve protection device

Also Published As

Publication number Publication date
JPS6019230B2 (en) 1985-05-15

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