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JPS56129425A - Circuit switching device - Google Patents

Circuit switching device

Info

Publication number
JPS56129425A
JPS56129425A JP3165480A JP3165480A JPS56129425A JP S56129425 A JPS56129425 A JP S56129425A JP 3165480 A JP3165480 A JP 3165480A JP 3165480 A JP3165480 A JP 3165480A JP S56129425 A JPS56129425 A JP S56129425A
Authority
JP
Japan
Prior art keywords
current
capacitor
gto2
turns
gto1
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
JP3165480A
Other languages
Japanese (ja)
Other versions
JPH0330324B2 (en
Inventor
Hiroshi Narita
Yoshio Tsutsui
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 JP3165480A priority Critical patent/JPS56129425A/en
Publication of JPS56129425A publication Critical patent/JPS56129425A/en
Publication of JPH0330324B2 publication Critical patent/JPH0330324B2/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
    • H03K17/10—Modifications for increasing the maximum permissible switched voltage
    • H03K17/105—Modifications for increasing the maximum permissible switched voltage in thyristor switches

Landscapes

  • Thyristor Switches And Gates (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To improve the voltage share at turn-off, by decreasing the current flowing to self-breaking type semiconductor element which turns off with a delay and quickening the turn-off. CONSTITUTION:A capacitor C is added to the snubber circuit consisting of resistances R1, R2 and capacitors C1, C2 in parallel connection with gate turning-off thyristors GTO1. GTO2. When GTO1 first turns off, the current IC1 flowing to GTO1 is branched into the capacitor C1 and capacitor C through the resistance R1. Since the current iC1 of the capacitor C1 flows to GTO2 which turns off with a delay, the current becomes decreased by the current iC1 branched to the capacitor C. In this case, the negative current of GTO2 is the current value distinguishing the original current before the reduction, then the turning-off operation of GTO2 can be quickened.
JP3165480A 1980-03-14 1980-03-14 Circuit switching device Granted JPS56129425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3165480A JPS56129425A (en) 1980-03-14 1980-03-14 Circuit switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3165480A JPS56129425A (en) 1980-03-14 1980-03-14 Circuit switching device

Publications (2)

Publication Number Publication Date
JPS56129425A true JPS56129425A (en) 1981-10-09
JPH0330324B2 JPH0330324B2 (en) 1991-04-30

Family

ID=12337145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3165480A Granted JPS56129425A (en) 1980-03-14 1980-03-14 Circuit switching device

Country Status (1)

Country Link
JP (1) JPS56129425A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52106276A (en) * 1976-03-03 1977-09-06 Hitachi Ltd Semiconductor device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52106276A (en) * 1976-03-03 1977-09-06 Hitachi Ltd Semiconductor device

Also Published As

Publication number Publication date
JPH0330324B2 (en) 1991-04-30

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