JPS57113775A - Control circuit for inverter - Google Patents

Control circuit for inverter

Info

Publication number
JPS57113775A
JPS57113775A JP55187564A JP18756480A JPS57113775A JP S57113775 A JPS57113775 A JP S57113775A JP 55187564 A JP55187564 A JP 55187564A JP 18756480 A JP18756480 A JP 18756480A JP S57113775 A JPS57113775 A JP S57113775A
Authority
JP
Japan
Prior art keywords
output
circuit
inverter
frequency
smoothing
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
JP55187564A
Other languages
Japanese (ja)
Inventor
Hiroo Tomita
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Fuji Electric Manufacturing 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 Fuji Electric Co Ltd, Fuji Electric Manufacturing Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP55187564A priority Critical patent/JPS57113775A/en
Publication of JPS57113775A publication Critical patent/JPS57113775A/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 limit the ratio of the output voltage and output frequency in an inverter to a predetermined value by fixing the output frequency in the inverter to approximately linear function of conductivity. CONSTITUTION:A smoothing circuit 15 smoothing the output pulses in a pulse- width modulating circuit 10 is provided to limit the output in a frequency command circuit 9' becoming the input in a frequency generating circuit 12 by the output in the smoothing circuit 15. When the output current in an inverter becomes excessive, an overcurrent detection circuit 7 works to narrow the output pulse width in the pulse width modulating circuit 10. Therefore, the output in the smoothing circuit 15 smoothing, the signal is reduced and the output in the frequency command circuit 9' is also reduced as the output is fed to the smoothing circuit 15 and the output in the frequency generating circuit, namely, the output frequency in the inverter is also reduced. Therefore, the ratio of the output voltage and output frequency in the inverter is always limited to a predetermined value.
JP55187564A 1980-12-29 1980-12-29 Control circuit for inverter Pending JPS57113775A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55187564A JPS57113775A (en) 1980-12-29 1980-12-29 Control circuit for inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55187564A JPS57113775A (en) 1980-12-29 1980-12-29 Control circuit for inverter

Publications (1)

Publication Number Publication Date
JPS57113775A true JPS57113775A (en) 1982-07-15

Family

ID=16208285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55187564A Pending JPS57113775A (en) 1980-12-29 1980-12-29 Control circuit for inverter

Country Status (1)

Country Link
JP (1) JPS57113775A (en)

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