JPS57173377A - Controlling circuit for pulse width modulation type inverter - Google Patents

Controlling circuit for pulse width modulation type inverter

Info

Publication number
JPS57173377A
JPS57173377A JP56058468A JP5846881A JPS57173377A JP S57173377 A JPS57173377 A JP S57173377A JP 56058468 A JP56058468 A JP 56058468A JP 5846881 A JP5846881 A JP 5846881A JP S57173377 A JPS57173377 A JP S57173377A
Authority
JP
Japan
Prior art keywords
pulse mode
instruction
output
generators
signal
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
JP56058468A
Other languages
Japanese (ja)
Inventor
Takeshi Shioda
Makoto Fukuyama
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.)
Toyo Denki Seizo KK
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Denki Seizo KK
Toyo Electric Manufacturing 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 Toyo Denki Seizo KK, Toyo Electric Manufacturing Ltd filed Critical Toyo Denki Seizo KK
Priority to JP56058468A priority Critical patent/JPS57173377A/en
Publication of JPS57173377A publication Critical patent/JPS57173377A/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 reduce the harmonic component of a noise by producing a pulse mode output mixed in the frequency width in the vicinity of an operating frequency for varying the pulse mode. CONSTITUTION:Pulse mode designation signals M' are repsectively outputted in response to a speed set signal S from pulse mode generators 14, 14', 14''. A mixed pulse mode instruction H is produced by the signal S from a frequency discriminator 11, and a flip-flop 12 produces an output I upon fall of the instruction H to a pulse mode switch 13. A signal generator 10 produces as 30 deg. interval signal G outputs P from a voltage/frequency convertor to the switch 13. When the instruction H is low level, the output I of the flip-flop is switched and is applied to the generators 14, 14', 14'' and when the instruction H is high level, the output G of the signal generator is switched and is applied to the generators 14, 14', 14''.
JP56058468A 1981-04-20 1981-04-20 Controlling circuit for pulse width modulation type inverter Pending JPS57173377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56058468A JPS57173377A (en) 1981-04-20 1981-04-20 Controlling circuit for pulse width modulation type inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56058468A JPS57173377A (en) 1981-04-20 1981-04-20 Controlling circuit for pulse width modulation type inverter

Publications (1)

Publication Number Publication Date
JPS57173377A true JPS57173377A (en) 1982-10-25

Family

ID=13085256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56058468A Pending JPS57173377A (en) 1981-04-20 1981-04-20 Controlling circuit for pulse width modulation type inverter

Country Status (1)

Country Link
JP (1) JPS57173377A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5872556A (en) * 1981-10-05 1983-04-30 シエル・インタ−ナシヨシヨネイル・リサ−チ・マ−チヤツピイ・ベ−・ウイ Manufacture of tertiary butylhydroperoxide
JPS605782A (en) * 1983-06-22 1985-01-12 Hitachi Ltd Inverter device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5872556A (en) * 1981-10-05 1983-04-30 シエル・インタ−ナシヨシヨネイル・リサ−チ・マ−チヤツピイ・ベ−・ウイ Manufacture of tertiary butylhydroperoxide
JPH046703B2 (en) * 1981-10-05 1992-02-06 Sheru Intern Risaachi Maachatsupii Bv
JPS605782A (en) * 1983-06-22 1985-01-12 Hitachi Ltd Inverter device
US4622628A (en) * 1983-06-22 1986-11-11 Hitachi, Ltd. PWM inverter apparatus with digital control
JPH0468867B2 (en) * 1983-06-22 1992-11-04 Hitachi Ltd

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