JPS57153566A - Gate waveform generating circuit for frequency converter - Google Patents

Gate waveform generating circuit for frequency converter

Info

Publication number
JPS57153566A
JPS57153566A JP56038390A JP3839081A JPS57153566A JP S57153566 A JPS57153566 A JP S57153566A JP 56038390 A JP56038390 A JP 56038390A JP 3839081 A JP3839081 A JP 3839081A JP S57153566 A JPS57153566 A JP S57153566A
Authority
JP
Japan
Prior art keywords
output
frequency
sinusoidal wave
converter
sinusoidal
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
JP56038390A
Other languages
Japanese (ja)
Inventor
Yoshiro Yoshikawa
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP56038390A priority Critical patent/JPS57153566A/en
Publication of JPS57153566A publication Critical patent/JPS57153566A/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 remove harmonic wave components of an output waveform of a frequency converter by producing a sinusoidal wave output proportional to the input frequency from a D/A converter by a sinusoidal wave peak value controller, thereby approaching the frequency-divided signal to the sinusoidal wave. CONSTITUTION:The output from a frequency divider 1 is inputted to a pulse number switching circuit 2, and an inequal pulse number is determined. The amplitude of the sinusoidal wave a of the output of the first D/A converter 4 is controlled by a sinusoidal wave peak value controller 6 to produce a waveform for controlling the voltage of the output of a 3-phase AC power source, the input signal of a frequency divider 1 is inputted to the second D/A converter 3 as it is, the triangular wave D of the frequency of 3(2n+1) of the sinusoidal frequency is synchronized with the sinusoidal wave a and is produced. In this manner the voltage of the output of the 3-phase AC power source becomes inequal width pulse, and the output waveform becomes near the sinusoidal wave.
JP56038390A 1981-03-16 1981-03-16 Gate waveform generating circuit for frequency converter Pending JPS57153566A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56038390A JPS57153566A (en) 1981-03-16 1981-03-16 Gate waveform generating circuit for frequency converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56038390A JPS57153566A (en) 1981-03-16 1981-03-16 Gate waveform generating circuit for frequency converter

Publications (1)

Publication Number Publication Date
JPS57153566A true JPS57153566A (en) 1982-09-22

Family

ID=12523949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56038390A Pending JPS57153566A (en) 1981-03-16 1981-03-16 Gate waveform generating circuit for frequency converter

Country Status (1)

Country Link
JP (1) JPS57153566A (en)

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