JPS5288721A - Frequency converting system - Google Patents
Frequency converting systemInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4858331A (en) * | 1971-11-24 | 1973-08-16 |
-
1976
- 1976-01-20 JP JP530176A patent/JPS5288721A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4858331A (en) * | 1971-11-24 | 1973-08-16 |
Cited By (1)
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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