JPS5546885A - Speed-control device for variable-speed motor - Google Patents
Speed-control device for variable-speed motorInfo
- Publication number
- JPS5546885A JPS5546885A JP11765178A JP11765178A JPS5546885A JP S5546885 A JPS5546885 A JP S5546885A JP 11765178 A JP11765178 A JP 11765178A JP 11765178 A JP11765178 A JP 11765178A JP S5546885 A JPS5546885 A JP S5546885A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- speed
- voltage
- pulse
- generated
- 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 Electric Motors In General (AREA)
Abstract
PURPOSE: To accomplish highly accurate speed regulation even under thermal disturbance by providing a pulse operation unit which generates a control signal; and a differential unit, which controls a supplied voltage, between a speed setting unit and a control unit.
CONSTITUTION: A control unit 6, which controls a voltage supplied from a speed- setting unit 5, is intervened between the speed setting unit 5 and a variable-speed motor unit 4, and pulses based on frequencies generated by a generator 3 is generated by a pulse generator 7. A pulse signal P8, which is generated in a voltage-frequency conversion unit 8 by digitally converting a voltage V5 or corresponding voltage V'5 supplied from the unit 5, and a pulse signal P7 from the pulse generator 7 are calculated in a pulse operation unit 9, thereby a control signal is generated. A differential unit 10 receives the control signal, and controls the voltage supplied by the speed-setting unit 5, thereby highly accurate speed control can be accomplished.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11765178A JPS5546885A (en) | 1978-09-25 | 1978-09-25 | Speed-control device for variable-speed motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11765178A JPS5546885A (en) | 1978-09-25 | 1978-09-25 | Speed-control device for variable-speed motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5546885A true JPS5546885A (en) | 1980-04-02 |
Family
ID=14716944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11765178A Pending JPS5546885A (en) | 1978-09-25 | 1978-09-25 | Speed-control device for variable-speed motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5546885A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4471281A (en) * | 1981-06-17 | 1984-09-11 | Mitsubishi Denki Kabushiki Kaisha | Digital control device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5028596A (en) * | 1973-06-15 | 1975-03-24 |
-
1978
- 1978-09-25 JP JP11765178A patent/JPS5546885A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5028596A (en) * | 1973-06-15 | 1975-03-24 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4471281A (en) * | 1981-06-17 | 1984-09-11 | Mitsubishi Denki Kabushiki Kaisha | Digital control device |
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