JPS5465466A - Control circuit for thyristor - Google Patents

Control circuit for thyristor

Info

Publication number
JPS5465466A
JPS5465466A JP13158077A JP13158077A JPS5465466A JP S5465466 A JPS5465466 A JP S5465466A JP 13158077 A JP13158077 A JP 13158077A JP 13158077 A JP13158077 A JP 13158077A JP S5465466 A JPS5465466 A JP S5465466A
Authority
JP
Japan
Prior art keywords
turn
gate
current
gto
thyristor
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
JP13158077A
Other languages
Japanese (ja)
Inventor
Kenichi Onda
Kiichi Tokunaga
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13158077A priority Critical patent/JPS5465466A/en
Publication of JPS5465466A publication Critical patent/JPS5465466A/en
Pending legal-status Critical Current

Links

Landscapes

  • Power Conversion In General (AREA)
  • Thyristor Switches And Gates (AREA)

Abstract

PURPOSE: To ensure the driving for the gate turn-off thyristor which features a miniature size, high efficiency and large capacity, by providing a capacitor which is charged by the turn-on power voltage.
CONSTITUTION: When the current flows to the base of transistor Tr1, capacitor Cg is charged via turn-on power source Eon with the polarity shown in the diagram. As a result, in addition to the current flowing resistance R1, the current flowing through acceleration circuit 1 also flows to the gate of gate turn-off thyristor GTO at the conduction time of Tr1. The turn-on gate current turns a large amount of the gate current only at the beginning of flowing to accelerate the turn-on of GTO. Thus, Tr1 is turned non-conductive after the desired conduction time. When the current flows to the base of transistor Tr2, GTO is turned off after the voltage of Cg becomes identical to turn-off power source Eoff. And the turn-off of GTO is accelerated at the beginning of the flowing of the turn-off gate current.
COPYRIGHT: (C)1979,JPO&Japio
JP13158077A 1977-11-04 1977-11-04 Control circuit for thyristor Pending JPS5465466A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13158077A JPS5465466A (en) 1977-11-04 1977-11-04 Control circuit for thyristor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13158077A JPS5465466A (en) 1977-11-04 1977-11-04 Control circuit for thyristor

Publications (1)

Publication Number Publication Date
JPS5465466A true JPS5465466A (en) 1979-05-26

Family

ID=15061366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13158077A Pending JPS5465466A (en) 1977-11-04 1977-11-04 Control circuit for thyristor

Country Status (1)

Country Link
JP (1) JPS5465466A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58142627A (en) * 1982-02-18 1983-08-24 Toshiba Corp Gate circuit of self arc extinction type semiconductor element
JPS62276923A (en) * 1986-05-26 1987-12-01 Hitachi Ltd Direct parallel connection circuit for gate turn-off type thyristor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58142627A (en) * 1982-02-18 1983-08-24 Toshiba Corp Gate circuit of self arc extinction type semiconductor element
JPH0352256B2 (en) * 1982-02-18 1991-08-09 Tokyo Shibaura Electric Co
JPS62276923A (en) * 1986-05-26 1987-12-01 Hitachi Ltd Direct parallel connection circuit for gate turn-off type thyristor
JPH0529167B2 (en) * 1986-05-26 1993-04-28 Hitachi Ltd

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