JPS5815472A - Overload protecting device for inverter - Google Patents

Overload protecting device for inverter

Info

Publication number
JPS5815472A
JPS5815472A JP56113490A JP11349081A JPS5815472A JP S5815472 A JPS5815472 A JP S5815472A JP 56113490 A JP56113490 A JP 56113490A JP 11349081 A JP11349081 A JP 11349081A JP S5815472 A JPS5815472 A JP S5815472A
Authority
JP
Japan
Prior art keywords
inverter
signal
control circuit
output
current
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
JP56113490A
Other languages
Japanese (ja)
Inventor
Yoshiaki Miyazawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56113490A priority Critical patent/JPS5815472A/en
Publication of JPS5815472A publication Critical patent/JPS5815472A/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

Abstract

PURPOSE:To effectively prevent a shortcircuit trouble without using expensive semiconductor breaker and current limiting resistor by detecting the defect, limiting the output current for the prescribed period of time and then softly starting an inverter. CONSTITUTION:When a shortcircuit defect occurs at the load side, an overcurrent detector 15 operates to input a set signal to a flip-flop 16, and the output of which is applied to a gate control circuit 14, a constant-voltage circuit 11, a constant-current control circuit 12, and a timer 17. As a result, the output current is abruptly reduced to zero, and the timer 17 starts operating. After the prescribed period of time is elapsed, a reset signal is inputted to the filp- flop 16, the output of which releases the OFF signal to the gate control circuit 14, an ON signal is applied to an inverter 2, thereby softly starting the inverter 2.
JP56113490A 1981-07-22 1981-07-22 Overload protecting device for inverter Pending JPS5815472A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56113490A JPS5815472A (en) 1981-07-22 1981-07-22 Overload protecting device for inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56113490A JPS5815472A (en) 1981-07-22 1981-07-22 Overload protecting device for inverter

Publications (1)

Publication Number Publication Date
JPS5815472A true JPS5815472A (en) 1983-01-28

Family

ID=14613615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56113490A Pending JPS5815472A (en) 1981-07-22 1981-07-22 Overload protecting device for inverter

Country Status (1)

Country Link
JP (1) JPS5815472A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59213285A (en) * 1983-05-18 1984-12-03 Sanyo Electric Co Ltd Protecting device of inverter circuit
JPS62202021U (en) * 1986-06-12 1987-12-23

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59213285A (en) * 1983-05-18 1984-12-03 Sanyo Electric Co Ltd Protecting device of inverter circuit
JPS62202021U (en) * 1986-06-12 1987-12-23

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