JPS56112885A - Protecting device for inverter - Google Patents
Protecting device for inverterInfo
- 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
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.
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)
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 |
-
1980
- 1980-02-06 JP JP1411880A patent/JPS56112885A/en active Pending
Cited By (4)
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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