JPS57153573A - Controlling circuit for inverter - Google Patents

Controlling circuit for inverter

Info

Publication number
JPS57153573A
JPS57153573A JP56038897A JP3889781A JPS57153573A JP S57153573 A JPS57153573 A JP S57153573A JP 56038897 A JP56038897 A JP 56038897A JP 3889781 A JP3889781 A JP 3889781A JP S57153573 A JPS57153573 A JP S57153573A
Authority
JP
Japan
Prior art keywords
inverter
output
signal
comparator
circuit
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.)
Granted
Application number
JP56038897A
Other languages
Japanese (ja)
Other versions
JPH026314B2 (en
Inventor
Osamu Miyazaki
Toru Miyajima
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 JP56038897A priority Critical patent/JPS57153573A/en
Publication of JPS57153573A publication Critical patent/JPS57153573A/en
Publication of JPH026314B2 publication Critical patent/JPH026314B2/ja
Granted 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)
  • Control Of Ac Motors In General (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To eliminate the stoppage of an inverter by providing a time limiter circuit which generates the prescribed time signal in accordance with the output of a comparator which compares the current of an inverter main circuit with a reference signal, and determining the output frequency of the inverter in accordance with the output of the time limiter. CONSTITUTION:A DC bus current detection signal If is compared by a comparator 11 with a stall preventive level reference signal Iref. When a main circuit current increases and the signal IF becomes higher than the signal Iref, the comparator 11 operates, with the result that a monostable multivibrator 12 produces a pulse, this output pulse is inputted to a frequency instructing circuit 8, and the output frequency of the inverter is fixed.
JP56038897A 1981-03-18 1981-03-18 Controlling circuit for inverter Granted JPS57153573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56038897A JPS57153573A (en) 1981-03-18 1981-03-18 Controlling circuit for inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56038897A JPS57153573A (en) 1981-03-18 1981-03-18 Controlling circuit for inverter

Publications (2)

Publication Number Publication Date
JPS57153573A true JPS57153573A (en) 1982-09-22
JPH026314B2 JPH026314B2 (en) 1990-02-08

Family

ID=12537988

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56038897A Granted JPS57153573A (en) 1981-03-18 1981-03-18 Controlling circuit for inverter

Country Status (1)

Country Link
JP (1) JPS57153573A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250519A (en) * 1975-10-21 1977-04-22 Toshiba Corp Frequency convertor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250519A (en) * 1975-10-21 1977-04-22 Toshiba Corp Frequency convertor

Also Published As

Publication number Publication date
JPH026314B2 (en) 1990-02-08

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