JPS57106377A - Modulation system for pulse width modulation inverter - Google Patents

Modulation system for pulse width modulation inverter

Info

Publication number
JPS57106377A
JPS57106377A JP55180872A JP18087280A JPS57106377A JP S57106377 A JPS57106377 A JP S57106377A JP 55180872 A JP55180872 A JP 55180872A JP 18087280 A JP18087280 A JP 18087280A JP S57106377 A JPS57106377 A JP S57106377A
Authority
JP
Japan
Prior art keywords
signals
waves
phase
generating circuit
euvw
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
JP55180872A
Other languages
Japanese (ja)
Inventor
Hideo Koo
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 JP55180872A priority Critical patent/JPS57106377A/en
Publication of JPS57106377A publication Critical patent/JPS57106377A/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 simplify constitution, and to eliminate the unbalance of three phases by obtaining composite gate signals corresponding to the three phases by comparing a pair of carrier waves and modulated waves, dividing the signals at every each phase and acquiring gate signals at every phase. CONSTITUTION:Clock signals CL are inputted, the modulated waves EUVW are generated from a modulated wave generating circuit 18 and the carrier waves EO from a carrier wave generating circuit 20 by output signals from a phase angle generating circuit 19, and an amplification circuit 22 amplifies the modulated waves EUVW on the basis of the output of a voltage comparator 21. A voltage comparator 23 compares the modulaed waves EUVW and the carrier waves EO and the composite gate signals GUVW corresponding to the three phases are obtained, the gate signals are supplied to each phase gate signal dividing circuit 24, 25, 26, and each phase gate signal GU, GV, GW is acquired on the basis of the output signals of the phase angle generating circuit 20.
JP55180872A 1980-12-19 1980-12-19 Modulation system for pulse width modulation inverter Pending JPS57106377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55180872A JPS57106377A (en) 1980-12-19 1980-12-19 Modulation system for pulse width modulation inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55180872A JPS57106377A (en) 1980-12-19 1980-12-19 Modulation system for pulse width modulation inverter

Publications (1)

Publication Number Publication Date
JPS57106377A true JPS57106377A (en) 1982-07-02

Family

ID=16090814

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55180872A Pending JPS57106377A (en) 1980-12-19 1980-12-19 Modulation system for pulse width modulation inverter

Country Status (1)

Country Link
JP (1) JPS57106377A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6087677A (en) * 1983-10-17 1985-05-17 Sanken Electric Co Ltd 3-phase inverter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6087677A (en) * 1983-10-17 1985-05-17 Sanken Electric Co Ltd 3-phase inverter

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