JPS55111685A - Motor speed controller - Google Patents
Motor speed controllerInfo
- Publication number
- JPS55111685A JPS55111685A JP1733479A JP1733479A JPS55111685A JP S55111685 A JPS55111685 A JP S55111685A JP 1733479 A JP1733479 A JP 1733479A JP 1733479 A JP1733479 A JP 1733479A JP S55111685 A JPS55111685 A JP S55111685A
- Authority
- JP
- Japan
- Prior art keywords
- current
- motor
- signal
- current instruction
- magnetic phase
- 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 improve the reliability and economy of a motor by forming a current controller for generating a phase signal corresponding to the deviation value between the current command from a signal controller and a current signal from the motor of a pair of positive and negative magnetic phase shifters.
CONSTITUTION: An elevator motor 8 is controlled at its speed by producing a current instruction in response to the deviation between the output from a speed instructing unit 1 and the outut from a speed detector 2, supplying the current instruction to a pair of positive and negative magnetic phase shifters 15, 16 with voltage drop occurred at the auxiliary winding 10 of the motor 8 as a feedback signal and controlling thyristor bridges 7a, 7b through pulse circuits 17, 18. The current instruction is applied to a hysteresis circuit 19. When the current instruction exceeds certain level, the polarity of the output signal is inverted. Thus, the current can be simply detected by using a magnetic phase shifter having preferable insulation to improve the safety and reliability of the motor.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1733479A JPS55111685A (en) | 1979-02-19 | 1979-02-19 | Motor speed controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1733479A JPS55111685A (en) | 1979-02-19 | 1979-02-19 | Motor speed controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55111685A true JPS55111685A (en) | 1980-08-28 |
Family
ID=11941147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1733479A Pending JPS55111685A (en) | 1979-02-19 | 1979-02-19 | Motor speed controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55111685A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63107481A (en) * | 1986-10-21 | 1988-05-12 | Sharp Corp | Control system for 4-quadrant chopper |
-
1979
- 1979-02-19 JP JP1733479A patent/JPS55111685A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63107481A (en) * | 1986-10-21 | 1988-05-12 | Sharp Corp | Control system for 4-quadrant chopper |
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