JPS5736584A - Shortcircuit protection device - Google Patents

Shortcircuit protection device

Info

Publication number
JPS5736584A
JPS5736584A JP11053980A JP11053980A JPS5736584A JP S5736584 A JPS5736584 A JP S5736584A JP 11053980 A JP11053980 A JP 11053980A JP 11053980 A JP11053980 A JP 11053980A JP S5736584 A JPS5736584 A JP S5736584A
Authority
JP
Japan
Prior art keywords
shortcircuit
detection signal
produced
pulse
firing signals
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
JP11053980A
Other languages
Japanese (ja)
Inventor
Osamu Kawabata
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP11053980A priority Critical patent/JPS5736584A/en
Publication of JPS5736584A publication Critical patent/JPS5736584A/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
    • H02M7/53—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 triode or transistor type requiring continuous application of a control signal
    • H02M7/537—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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Protection Of Static Devices (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To perform protective operation of high reliability, by suppressing protective operation even if shortcircuit is detected for a certain period of time in synchronization with firing signals. CONSTITUTION:Firing signals F conduct and control transistors RP and SN (waveform a), and RN and SP (waveform b). A timing circuit 8 produces a gate signal c with pulse-width DELTAt based on phase of the firing signals F. When charging current ic of a snubber circuit produces pulse-width DELTAt for several micro-seconds, pulse- width DELTAt will be set to be 10 micro-seconds. A timing circuit 8 suppresses generation of a shortcircuit detection signal S0 even if a shortcircuit detection signal S is inputted while a gate signal is produced. The shortcircuit detection signal S0 will be produced, when a shortcircuit detection signal is inputted while a gate signal is not produced.
JP11053980A 1980-08-12 1980-08-12 Shortcircuit protection device Pending JPS5736584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11053980A JPS5736584A (en) 1980-08-12 1980-08-12 Shortcircuit protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11053980A JPS5736584A (en) 1980-08-12 1980-08-12 Shortcircuit protection device

Publications (1)

Publication Number Publication Date
JPS5736584A true JPS5736584A (en) 1982-02-27

Family

ID=14538371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11053980A Pending JPS5736584A (en) 1980-08-12 1980-08-12 Shortcircuit protection device

Country Status (1)

Country Link
JP (1) JPS5736584A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58172389U (en) * 1982-05-12 1983-11-17 澤藤電機株式会社 Inverter destruction prevention device
JPS5953013A (en) * 1982-09-20 1984-03-27 東京電力株式会社 Overcurrent protection system for dc transmission system
JPS5992594U (en) * 1982-12-10 1984-06-23 三菱電機株式会社 Current limiting device for air conditioners with inverters
JPS59164448U (en) * 1983-04-20 1984-11-05 株式会社東芝 Overcurrent detection device for high-speed shield breakers
JPS6064291U (en) * 1983-10-12 1985-05-07 セイコーエプソン株式会社 Mechanical fixing structure of mobile watch
JPS6481669A (en) * 1987-09-21 1989-03-27 Fuji Electric Co Ltd Transistor inverter for threephase ac motor
JP6395991B1 (en) * 2017-10-18 2018-09-26 三菱電機株式会社 Multiphase power converter
JP2018207557A (en) * 2017-05-30 2018-12-27 ダイキン工業株式会社 Controller of power conversion device and refrigeration apparatus
WO2019077785A1 (en) * 2017-10-18 2019-04-25 三菱電機株式会社 Multi-phase power conversion device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58172389U (en) * 1982-05-12 1983-11-17 澤藤電機株式会社 Inverter destruction prevention device
JPS5953013A (en) * 1982-09-20 1984-03-27 東京電力株式会社 Overcurrent protection system for dc transmission system
JPH0216658B2 (en) * 1982-09-20 1990-04-17 Tokyo Denryoku Kk
JPS5992594U (en) * 1982-12-10 1984-06-23 三菱電機株式会社 Current limiting device for air conditioners with inverters
JPS59164448U (en) * 1983-04-20 1984-11-05 株式会社東芝 Overcurrent detection device for high-speed shield breakers
JPS6064291U (en) * 1983-10-12 1985-05-07 セイコーエプソン株式会社 Mechanical fixing structure of mobile watch
JPH0140075Y2 (en) * 1983-10-12 1989-12-01
JPS6481669A (en) * 1987-09-21 1989-03-27 Fuji Electric Co Ltd Transistor inverter for threephase ac motor
JP2018207557A (en) * 2017-05-30 2018-12-27 ダイキン工業株式会社 Controller of power conversion device and refrigeration apparatus
JP6395991B1 (en) * 2017-10-18 2018-09-26 三菱電機株式会社 Multiphase power converter
WO2019077785A1 (en) * 2017-10-18 2019-04-25 三菱電機株式会社 Multi-phase power conversion device

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