JPS5558800A - Eddy-current-coupling control device - Google Patents
Eddy-current-coupling control deviceInfo
- Publication number
- JPS5558800A JPS5558800A JP13056178A JP13056178A JPS5558800A JP S5558800 A JPS5558800 A JP S5558800A JP 13056178 A JP13056178 A JP 13056178A JP 13056178 A JP13056178 A JP 13056178A JP S5558800 A JPS5558800 A JP S5558800A
- Authority
- JP
- Japan
- Prior art keywords
- current
- eddy
- coupling
- exciting
- output signal
- 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 obtain a device wherein responsiveness is excellent and an eddy-current coupling is not overheated by providing a control means which controls the maximum value of an exciting current at the value in the vicinity, where the magnetic exciting circuit of the eddy-current coupling is magnetically saturated.
CONSTITUTION: The current flowing in an exciter winding 1 of an eddy-current coupling is controlled by the phase control of a rectifier 2. The signal from a speed- command generator 4 and the output signal of a number-of revolution sensor 5 for the output of the coupling are compared and the difference signal is input to an amlifier 6. The output signal of the amplifier 6 goes through a variable resistor 8 which sets up the maximum value of an exciting current and is compared with the output signal of a shunt resistor 7 which detects the exciting current. A phase control circuit 3 is energized by th difference signal, thereby the exciting current of the eddy-current coupling is controlled.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13056178A JPS5558800A (en) | 1978-10-25 | 1978-10-25 | Eddy-current-coupling control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13056178A JPS5558800A (en) | 1978-10-25 | 1978-10-25 | Eddy-current-coupling control device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5558800A true JPS5558800A (en) | 1980-05-01 |
Family
ID=15037189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13056178A Pending JPS5558800A (en) | 1978-10-25 | 1978-10-25 | Eddy-current-coupling control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5558800A (en) |
-
1978
- 1978-10-25 JP JP13056178A patent/JPS5558800A/en active Pending
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