JPS56112885A - Protecting device for inverter - Google Patents

Protecting device for inverter

Info

Publication number
JPS56112885A
JPS56112885A JP1411880A JP1411880A JPS56112885A JP S56112885 A JPS56112885 A JP S56112885A JP 1411880 A JP1411880 A JP 1411880A JP 1411880 A JP1411880 A JP 1411880A JP S56112885 A JPS56112885 A JP S56112885A
Authority
JP
Japan
Prior art keywords
circuit
power source
parallel
inverter
reactor
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
JP1411880A
Other languages
Japanese (ja)
Inventor
Sadao Mori
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.)
Panasonic Ecology Systems Co Ltd
Original Assignee
Matsushita Seiko 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 Matsushita Seiko Co Ltd filed Critical Matsushita Seiko Co Ltd
Priority to JP1411880A priority Critical patent/JPS56112885A/en
Publication of JPS56112885A publication Critical patent/JPS56112885A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To surely perform protection of a thyristor at the time of short-circuit by connecting a parallel circuit of a DC reactor and a diode to between a DC power source and an inverter and by providing a transistor in parallel to a resistance. CONSTITUTION:Between the DC power source 1 formed of a rectifier 111 and the inverter 10 is provided the parallel circuit of the DC reactor 100 and the diode 101, while the transistor 103 positioned in parallel to the resistance 102 is provided. And, when a load or the power source is short-circuited, the excess current generated thereby is detected by a detector 4 and supplied to a driving circuit 108 through the intermediary of a comparator 104 to turn the transistor 103 off, while operating a relay 6 to open a contact 110. Accordingly, even when the impedance of the DC power source 1 is small, short-circuit current is increased linearly by the DC reactor 100 and, by detecting the current, the circuit is opened. Therefore, sure operation for protection can be performed.
JP1411880A 1980-02-06 1980-02-06 Protecting device for inverter Pending JPS56112885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1411880A JPS56112885A (en) 1980-02-06 1980-02-06 Protecting device for inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1411880A JPS56112885A (en) 1980-02-06 1980-02-06 Protecting device for inverter

Publications (1)

Publication Number Publication Date
JPS56112885A true JPS56112885A (en) 1981-09-05

Family

ID=11852197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1411880A Pending JPS56112885A (en) 1980-02-06 1980-02-06 Protecting device for inverter

Country Status (1)

Country Link
JP (1) JPS56112885A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02119395U (en) * 1989-03-13 1990-09-26
WO2016023299A1 (en) * 2014-08-15 2016-02-18 京东方科技集团股份有限公司 Ac-dc convertor, power supply board and display device
CN106602915A (en) * 2016-09-28 2017-04-26 深圳市盈动力科技有限公司 Inversion device power limitation circuit and inversion device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02119395U (en) * 1989-03-13 1990-09-26
WO2016023299A1 (en) * 2014-08-15 2016-02-18 京东方科技集团股份有限公司 Ac-dc convertor, power supply board and display device
CN106602915A (en) * 2016-09-28 2017-04-26 深圳市盈动力科技有限公司 Inversion device power limitation circuit and inversion device
JP2018532356A (en) * 2016-09-28 2018-11-01 深▲せん▼市盈動力科技有限公司 Inverter power limiting circuit and inverter

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