JPS5513613A - Speed controller for electric motor - Google Patents
Speed controller for electric motorInfo
- Publication number
- JPS5513613A JPS5513613A JP8400078A JP8400078A JPS5513613A JP S5513613 A JPS5513613 A JP S5513613A JP 8400078 A JP8400078 A JP 8400078A JP 8400078 A JP8400078 A JP 8400078A JP S5513613 A JPS5513613 A JP S5513613A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- speed
- current
- limiter
- control circuit
- 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
Links
Landscapes
- Control Of Direct Current Motors (AREA)
Abstract
PURPOSE: To maintain the acceleration time of an electric motor at a prescribed value independently of the load conditions, by reducing a current command when the rate of the speed variation of the motor has exceeded a prescribed level.
CONSTITUTION: A speed control circuit 5 generates an output signal corresponding to the difference between the output signals of a speed command circuit 4 and a tachometer generator 3. A signal corresponding to the difference between the output signal of the speed control circuit 5 passed through a limiter 12 and that of a current detector 7 is supplied from a current control circuit 8 through an automatic pulse phase shifter 9 to a converter 1 for controlling the applied voltage to the DC motor 2. When the output of a variation rate detection circuit 10 for detecting the rate of the speed variation has exceeded a prescribed value, a limiter instruction circuit 11 reduces the limit value of the limiter 12 to lower the upper limit for the current of the motor.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8400078A JPS5513613A (en) | 1978-07-12 | 1978-07-12 | Speed controller for electric motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8400078A JPS5513613A (en) | 1978-07-12 | 1978-07-12 | Speed controller for electric motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5513613A true JPS5513613A (en) | 1980-01-30 |
Family
ID=13818249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8400078A Pending JPS5513613A (en) | 1978-07-12 | 1978-07-12 | Speed controller for electric motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5513613A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62160006A (en) * | 1985-12-31 | 1987-07-16 | Nippon Yusoki Co Ltd | Controlling method for dead slow speed of unmanned conveying vehicle |
JPH0340102A (en) * | 1989-07-07 | 1991-02-20 | Toshiba Corp | Control device |
-
1978
- 1978-07-12 JP JP8400078A patent/JPS5513613A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62160006A (en) * | 1985-12-31 | 1987-07-16 | Nippon Yusoki Co Ltd | Controlling method for dead slow speed of unmanned conveying vehicle |
JPH0340102A (en) * | 1989-07-07 | 1991-02-20 | Toshiba Corp | Control device |
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