GB837914A - Electric motor control system - Google Patents
Electric motor control systemInfo
- Publication number
- GB837914A GB837914A GB26733/56A GB2673356A GB837914A GB 837914 A GB837914 A GB 837914A GB 26733/56 A GB26733/56 A GB 26733/56A GB 2673356 A GB2673356 A GB 2673356A GB 837914 A GB837914 A GB 837914A
- Authority
- GB
- United Kingdom
- Prior art keywords
- winding
- motor
- feed
- current
- control
- 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.)
- Expired
Links
- 238000004804 winding Methods 0.000 abstract 9
- 230000006698 induction Effects 0.000 abstract 2
- 230000001419 dependent effect Effects 0.000 abstract 1
- 230000002441 reversible effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
- G05D3/1418—Control of position or direction using feedback using an analogue comparing device with AC amplifier chain
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
837,914. Control of A.C. motors. STANDARD TELEPHONES & CABLES Ltd. Aug. 31, 1956 [Sept. 7, 1955], No. 26733/56. Class 38 (3). An induction motor having a control winding 29 and a reference winding 34 is controlled by means of D.C. signals derived from a source 1 which is connected through the secondary winding of a feed-back transformer 4 to the grid of a triode 6. This valve is arranged in an A.C. bridge circuit also comprising resistors 11, 14 and 15, the bridge being supplied from source 18 and having its output terminals connected to transformer winding 9. Thus, the phase and amplitude of the current in winding 9 are dependent upon the impedance of the triode 6, and this current is amplified in a push-pull amplifier and fed to the control winding of the motor. In order to prevent hunting, the motor drives an induction generator 37 with its rotor winding connected to the primary winding of the feed-back transformer 4, this feed-back voltage being effective to oppose the flow of current through the winding 9. The motor may be mechanically coupled to a reversible counter 33 for use in an aeroplane navigation system.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US837914XA | 1955-09-07 | 1955-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB837914A true GB837914A (en) | 1960-06-15 |
Family
ID=22180725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26733/56A Expired GB837914A (en) | 1955-09-07 | 1956-08-31 | Electric motor control system |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB837914A (en) |
-
1956
- 1956-08-31 GB GB26733/56A patent/GB837914A/en not_active Expired
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