JPS56125992A - Current feedback signal generator for dc servo mechanism - Google Patents
Current feedback signal generator for dc servo mechanismInfo
- Publication number
- JPS56125992A JPS56125992A JP2731880A JP2731880A JPS56125992A JP S56125992 A JPS56125992 A JP S56125992A JP 2731880 A JP2731880 A JP 2731880A JP 2731880 A JP2731880 A JP 2731880A JP S56125992 A JPS56125992 A JP S56125992A
- Authority
- JP
- Japan
- Prior art keywords
- represented
- period
- current
- current feedback
- register
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Position Or Direction (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
PURPOSE:To digitize a current feedback circuit without measuring actually a current value by calculating with a detection signal from a photoelectric pulse encoder for detecting speed on the basis of a relation formula to thus calculate a current feedback signal. CONSTITUTION:When the torque coefficient of a motor 31 is represented by Kt, the inertial moment of a load is represented by J, a load braking coefficient is represented by R and a current feedback gain is represented by Fi, even if the feedback current value Ib is not actually detected, it can be calculated by a formula (1) using a pulse counted number omegaO of a period from a photoelectric pulse encoder 32. The number of pulses from the encoder 32 is counted by a counter 33 on the basis of the formula (1), the counted number of the n-th period and the counted number before one period are stored in an n-register 34 and (n-1) register 35, and the feedback current value Ib is calculated at every period. This calculated value is held in an H register 42 to be fed back to the current control loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2731880A JPS56125992A (en) | 1980-03-06 | 1980-03-06 | Current feedback signal generator for dc servo mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2731880A JPS56125992A (en) | 1980-03-06 | 1980-03-06 | Current feedback signal generator for dc servo mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56125992A true JPS56125992A (en) | 1981-10-02 |
Family
ID=12217725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2731880A Pending JPS56125992A (en) | 1980-03-06 | 1980-03-06 | Current feedback signal generator for dc servo mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56125992A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60101617A (en) * | 1983-11-07 | 1985-06-05 | Matsushita Electric Ind Co Ltd | Digital servo controller |
| EP0913923A2 (en) * | 1997-10-28 | 1999-05-06 | Tamagawa Seiki Kabushiki Kaisha | Servo-motor driving method |
-
1980
- 1980-03-06 JP JP2731880A patent/JPS56125992A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60101617A (en) * | 1983-11-07 | 1985-06-05 | Matsushita Electric Ind Co Ltd | Digital servo controller |
| EP0913923A2 (en) * | 1997-10-28 | 1999-05-06 | Tamagawa Seiki Kabushiki Kaisha | Servo-motor driving method |
| EP0913923A3 (en) * | 1997-10-28 | 1999-09-01 | Tamagawa Seiki Kabushiki Kaisha | Servo-motor driving method |
| US6020707A (en) * | 1997-10-28 | 2000-02-01 | Tamagawa Seiki Kabushiki Kaisha | Servo-motor driving method |
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