JPS56123779A - Method for gate turn-off for thyristor inverter - Google Patents

Method for gate turn-off for thyristor inverter

Info

Publication number
JPS56123779A
JPS56123779A JP2757280A JP2757280A JPS56123779A JP S56123779 A JPS56123779 A JP S56123779A JP 2757280 A JP2757280 A JP 2757280A JP 2757280 A JP2757280 A JP 2757280A JP S56123779 A JPS56123779 A JP S56123779A
Authority
JP
Japan
Prior art keywords
signal
pulse
gate
valve
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.)
Granted
Application number
JP2757280A
Other languages
Japanese (ja)
Other versions
JPS6251075B2 (en
Inventor
Hidetoshi Ino
Atsuo Kobayashi
Tadashi Takahashi
Yoshiro Tagami
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 JP2757280A priority Critical patent/JPS56123779A/en
Publication of JPS56123779A publication Critical patent/JPS56123779A/en
Publication of JPS6251075B2 publication Critical patent/JPS6251075B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/06—Circuits specially adapted for rendering non-conductive gas discharge tubes or equivalent semiconductor devices, e.g. thyratrons, thyristors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)

Abstract

PURPOSE:To turn off a thyristor valve without damaging the valve, by giving a gate pulse signal with a set time interval after a by-passed switch-on signal is generated. CONSTITUTION:A by-pass switch-on signal (C), a turn-off signal (g) for a U-phase valve 12 and a forward voltage signal FV are inputted to an AND gate 19, and an output signal (h) is input to a timer circuit 20. After a set delay time, a signal (i) is outputted to a pulse circuit 21. The pulse circuit 21 outputs a one-shot pulse (j) and outputs a reset signal to a flip-flop 14 in an OR gate with both an output signal (c) of an additional coverage angle period discriminating circuit 16 and the one shot pulse (j) as the input signals. With such a simple arrangement a gate pulse can be turned off with sureness without damaging a valve.
JP2757280A 1980-03-05 1980-03-05 Method for gate turn-off for thyristor inverter Granted JPS56123779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2757280A JPS56123779A (en) 1980-03-05 1980-03-05 Method for gate turn-off for thyristor inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2757280A JPS56123779A (en) 1980-03-05 1980-03-05 Method for gate turn-off for thyristor inverter

Publications (2)

Publication Number Publication Date
JPS56123779A true JPS56123779A (en) 1981-09-29
JPS6251075B2 JPS6251075B2 (en) 1987-10-28

Family

ID=12224715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2757280A Granted JPS56123779A (en) 1980-03-05 1980-03-05 Method for gate turn-off for thyristor inverter

Country Status (1)

Country Link
JP (1) JPS56123779A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5517229A (en) * 1978-07-21 1980-02-06 Hitachi Ltd Gate pulse generator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5517229A (en) * 1978-07-21 1980-02-06 Hitachi Ltd Gate pulse generator

Also Published As

Publication number Publication date
JPS6251075B2 (en) 1987-10-28

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