JPS5722386A - Inverter circuit - Google Patents

Inverter circuit

Info

Publication number
JPS5722386A
JPS5722386A JP9402980A JP9402980A JPS5722386A JP S5722386 A JPS5722386 A JP S5722386A JP 9402980 A JP9402980 A JP 9402980A JP 9402980 A JP9402980 A JP 9402980A JP S5722386 A JPS5722386 A JP S5722386A
Authority
JP
Japan
Prior art keywords
gto
short
circuit
current
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
JP9402980A
Other languages
Japanese (ja)
Inventor
Hiroshi Fukui
Hisao Amano
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 JP9402980A priority Critical patent/JPS5722386A/en
Publication of JPS5722386A publication Critical patent/JPS5722386A/en
Pending 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/505—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/515—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only

Abstract

PURPOSE:To protect a gate turn off thyristor GTO as well as to block the spreading of a short-circuit trouble for the subject inverter circuit by a method wherein the voltage applied to the GTO is reduced when the short-circuit trouble is encountered and an overcurrent is broken by the GTO. CONSTITUTION:When the inverter short-circuit trouble takes place, the overcurrent flowing at that time is detected, a thyristor 16 is turned on and an off signal is given to the GTO (GT01 and GT02). The current of a DC power source 12 runs to the GTO and the applied voltage on the input side when the GTO is in off-state is suppressed. Accordingly, the controllable current of the GTO at that time is sharply increased and an excess short-circuit current can also be broken.
JP9402980A 1980-07-11 1980-07-11 Inverter circuit Pending JPS5722386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9402980A JPS5722386A (en) 1980-07-11 1980-07-11 Inverter circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9402980A JPS5722386A (en) 1980-07-11 1980-07-11 Inverter circuit

Publications (1)

Publication Number Publication Date
JPS5722386A true JPS5722386A (en) 1982-02-05

Family

ID=14099131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9402980A Pending JPS5722386A (en) 1980-07-11 1980-07-11 Inverter circuit

Country Status (1)

Country Link
JP (1) JPS5722386A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61217088A (en) * 1985-03-22 1986-09-26 株式会社タツノ・メカトロニクス Display unit
US4641231A (en) * 1985-12-06 1987-02-03 General Electric Company Apparatus and method for failure testing of a control turn-off semiconductor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61217088A (en) * 1985-03-22 1986-09-26 株式会社タツノ・メカトロニクス Display unit
US4641231A (en) * 1985-12-06 1987-02-03 General Electric Company Apparatus and method for failure testing of a control turn-off semiconductor

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