JPS6423783A - Rotational frequency controlling circuit for motor - Google Patents
Rotational frequency controlling circuit for motorInfo
- Publication number
- JPS6423783A JPS6423783A JP62178242A JP17824287A JPS6423783A JP S6423783 A JPS6423783 A JP S6423783A JP 62178242 A JP62178242 A JP 62178242A JP 17824287 A JP17824287 A JP 17824287A JP S6423783 A JPS6423783 A JP S6423783A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- desired value
- controlled variable
- gain
- value
- 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 Ac Motors In General (AREA)
Abstract
PURPOSE:To enhance the adaptability and stability of a controlling system at the same time, by changing the gain of counter input deviation characteristic according to a difference between a desired value and an actual value. CONSTITUTION:From a comparing circuit 21a, a deviation Y between a desired value Ys and an actual value Y is applied to a motor 3 via an operational amplifier circuit 21b. In the meantime, from a set division circuit 22a, the output of the specified controlled variable Yi of a properly divided difference between the desired value Ys, and a controlled variable initial-value at a control starting time point against the desired value Ys is generated. Then, from a gain setting circuit 22b, the output of a gain Ni/ Y according to a difference between the desired value Ys and the controlled variable Yi is generated. Besides, by a comparing circuit 22c, the actual value Y and the controlled variable Yi are compared with each other, and a selection circuit 22d is turned ON/OFF. Then, from the selection circuit 22d, by the output of the comparing circuit 22c, the gain Ni/ Y is applied to the operational amplifier 21b. As a result, the adaptability and stability of a controlling system can be improved together.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62178242A JPS6423783A (en) | 1987-07-17 | 1987-07-17 | Rotational frequency controlling circuit for motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62178242A JPS6423783A (en) | 1987-07-17 | 1987-07-17 | Rotational frequency controlling circuit for motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6423783A true JPS6423783A (en) | 1989-01-26 |
Family
ID=16045079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62178242A Pending JPS6423783A (en) | 1987-07-17 | 1987-07-17 | Rotational frequency controlling circuit for motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6423783A (en) |
-
1987
- 1987-07-17 JP JP62178242A patent/JPS6423783A/en active Pending
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