JPS57173376A - Controlling circuit for pulse width modulation type inverter - Google Patents

Controlling circuit for pulse width modulation type inverter

Info

Publication number
JPS57173376A
JPS57173376A JP56058467A JP5846781A JPS57173376A JP S57173376 A JPS57173376 A JP S57173376A JP 56058467 A JP56058467 A JP 56058467A JP 5846781 A JP5846781 A JP 5846781A JP S57173376 A JPS57173376 A JP S57173376A
Authority
JP
Japan
Prior art keywords
pulse mode
instruction
generators
output
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
JP56058467A
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 JP56058467A priority Critical patent/JPS57173376A/en
Publication of JPS57173376A publication Critical patent/JPS57173376A/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 prevent the variation in the tone color of a noise by mixing a pulse mode in a constant frequency width when the pylse mode is varied, thereby reducing the rate of the variation in the pulse mode. CONSTITUTION:Pulse mode designation signals M' are respectively 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 60 deg. interval signal G outputs A, B, C from 3-phase signal generator 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''.
JP56058467A 1981-04-20 1981-04-20 Controlling circuit for pulse width modulation type inverter Pending JPS57173376A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56058467A JPS57173376A (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
JP56058467A JPS57173376A (en) 1981-04-20 1981-04-20 Controlling circuit for pulse width modulation type inverter

Publications (1)

Publication Number Publication Date
JPS57173376A true JPS57173376A (en) 1982-10-25

Family

ID=13085231

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56058467A Pending JPS57173376A (en) 1981-04-20 1981-04-20 Controlling circuit for pulse width modulation type inverter

Country Status (1)

Country Link
JP (1) JPS57173376A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5874662A (en) * 1981-10-05 1983-05-06 シエル・インタ−ナシヨネイル・リサ−チ・マ−チヤツピイ・ベ−・ウイ Manufacture of tertiary butylhydroperoxide
US4622628A (en) * 1983-06-22 1986-11-11 Hitachi, Ltd. PWM inverter apparatus with digital control

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5874662A (en) * 1981-10-05 1983-05-06 シエル・インタ−ナシヨネイル・リサ−チ・マ−チヤツピイ・ベ−・ウイ Manufacture of tertiary butylhydroperoxide
JPH0354656B2 (en) * 1981-10-05 1991-08-20
US4622628A (en) * 1983-06-22 1986-11-11 Hitachi, Ltd. PWM inverter apparatus with digital control

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