JPS5288721A - Frequency converting system - Google Patents

Frequency converting system

Info

Publication number
JPS5288721A
JPS5288721A JP530176A JP530176A JPS5288721A JP S5288721 A JPS5288721 A JP S5288721A JP 530176 A JP530176 A JP 530176A JP 530176 A JP530176 A JP 530176A JP S5288721 A JPS5288721 A JP S5288721A
Authority
JP
Japan
Prior art keywords
frequency converting
converting system
time
accelerating
motor
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.)
Granted
Application number
JP530176A
Other languages
Japanese (ja)
Other versions
JPS5628478B2 (en
Inventor
Akio Hirata
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP530176A priority Critical patent/JPS5288721A/en
Priority to CA250,154A priority patent/CA1076251A/en
Priority to US05/676,814 priority patent/US4096532A/en
Priority to AU13039/76A priority patent/AU489866B2/en
Publication of JPS5288721A publication Critical patent/JPS5288721A/en
Publication of JPS5628478B2 publication Critical patent/JPS5628478B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE: To make the accelerating or decelerating time the shortest and to perform the optimum speed control by respectively settling the accelerating time and decelerating time of an alternating current motor to synchronize with the torque characteristic of the motor.
COPYRIGHT: (C)1977,JPO&Japio
JP530176A 1975-04-18 1976-01-20 Frequency converting system Granted JPS5288721A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP530176A JPS5288721A (en) 1976-01-20 1976-01-20 Frequency converting system
CA250,154A CA1076251A (en) 1975-04-18 1976-04-13 Magnetic tape copying method and apparatus
US05/676,814 US4096532A (en) 1975-04-18 1976-04-14 Magnetic tape copying method and apparatus
AU13039/76A AU489866B2 (en) 1976-04-15 Magnetic tape copying method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP530176A JPS5288721A (en) 1976-01-20 1976-01-20 Frequency converting system

Publications (2)

Publication Number Publication Date
JPS5288721A true JPS5288721A (en) 1977-07-25
JPS5628478B2 JPS5628478B2 (en) 1981-07-02

Family

ID=11607418

Family Applications (1)

Application Number Title Priority Date Filing Date
JP530176A Granted JPS5288721A (en) 1975-04-18 1976-01-20 Frequency converting system

Country Status (1)

Country Link
JP (1) JPS5288721A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6138897U (en) * 1984-08-13 1986-03-11 川鉄鉄構工業株式会社 Induction motor control device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4858331A (en) * 1971-11-24 1973-08-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4858331A (en) * 1971-11-24 1973-08-16

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6138897U (en) * 1984-08-13 1986-03-11 川鉄鉄構工業株式会社 Induction motor control device

Also Published As

Publication number Publication date
JPS5628478B2 (en) 1981-07-02

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