JPS55141981A - Pulse duration modulation type inverter controlling device - Google Patents

Pulse duration modulation type inverter controlling device

Info

Publication number
JPS55141981A
JPS55141981A JP5040979A JP5040979A JPS55141981A JP S55141981 A JPS55141981 A JP S55141981A JP 5040979 A JP5040979 A JP 5040979A JP 5040979 A JP5040979 A JP 5040979A JP S55141981 A JPS55141981 A JP S55141981A
Authority
JP
Japan
Prior art keywords
frequency
divider
output
carrier
controlling device
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
JP5040979A
Other languages
Japanese (ja)
Inventor
Hiroshi Miki
Shigefumi Kurita
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
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 filed Critical Fuji Electric Co Ltd
Priority to JP5040979A priority Critical patent/JPS55141981A/en
Publication of JPS55141981A publication Critical patent/JPS55141981A/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
    • H02M7/505—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 using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/515—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 using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/525—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 using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency
    • H02M7/527—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 using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency by pulse width modulation

Landscapes

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

Abstract

PURPOSE:To minimize a harmonic component of a motor current by changing a modulation ratio automatically according to an output frequency of an inverter. CONSTITUTION:There is provided a carrier frquency generator 7' operating independently from a frequnecy divider 6. While an output of the frequency divider 6 is such frequency as will change in direct proportion to a signal frequency of a voltage/frequency converter 5, a carrier frequency generated by the carrier frequency generator 7' is a constant frquency which is totally independent from the signal frequency to the output frequency of the frequency divider gets small when the output frequency of the frequency divider 6 is high and vice versa.
JP5040979A 1979-04-24 1979-04-24 Pulse duration modulation type inverter controlling device Pending JPS55141981A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5040979A JPS55141981A (en) 1979-04-24 1979-04-24 Pulse duration modulation type inverter controlling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5040979A JPS55141981A (en) 1979-04-24 1979-04-24 Pulse duration modulation type inverter controlling device

Publications (1)

Publication Number Publication Date
JPS55141981A true JPS55141981A (en) 1980-11-06

Family

ID=12858058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5040979A Pending JPS55141981A (en) 1979-04-24 1979-04-24 Pulse duration modulation type inverter controlling device

Country Status (1)

Country Link
JP (1) JPS55141981A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947980A (en) * 1982-09-13 1984-03-17 Toshiba Corp Voltage type inverter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947980A (en) * 1982-09-13 1984-03-17 Toshiba Corp Voltage type inverter

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