GB674348A - Improvements in and relating to low impedance servo amplifier systems - Google Patents
Improvements in and relating to low impedance servo amplifier systemsInfo
- Publication number
- GB674348A GB674348A GB1315/50A GB131550A GB674348A GB 674348 A GB674348 A GB 674348A GB 1315/50 A GB1315/50 A GB 1315/50A GB 131550 A GB131550 A GB 131550A GB 674348 A GB674348 A GB 674348A
- Authority
- GB
- United Kingdom
- Prior art keywords
- winding
- motor
- phase
- amplifier
- low impedance
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/04—Display arrangements
- G01S7/06—Cathode-ray tube displays or other two dimensional or three-dimensional displays
- G01S7/10—Providing two-dimensional and co-ordinated display of distance and direction
- G01S7/12—Plan-position indicators, i.e. P.P.I.
-
- 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
- G05D3/121—Control of position or direction using feedback using synchromachines (selsyns)
- G05D3/122—Control of position or direction using feedback using synchromachines (selsyns) without modulation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
674,348. Electric correspondence control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 18, 1950. [Jan. 28, 1949] No. 1315/50. Class 40 (i). A follow-up system wherein two shafts are maintained in positional correspondence, comprising an amplifier for the error signal with a negative feedback circuit to reduce the output impedance, and thereby reduce hunting of the driving motor, is characterized by the use of a 2-phase motor. As shown, Fig. 1, the error voltage developed in the 1-phase receiver winding 11 of a selsyn with rotation of the energized 1-phase transmitter winding 7 is amplified at 14, 15 and fed to a control winding 5 of a 2-phase motor 2, whose other winding 4 is connected to an independent A.C. supply. Resistances 24, 25 are connected across the control winding 5, and a feedback voltage is obtained from a tapping on resistance 25 and fed back to amplifier 14, thus reducing the output impedance of the complete amplifier circuit. The effect of this low impedance across the control winding 5 of the motor 2 is to increase the magnetic flux opposing the motion of the motor with independent motion thereof, thus introducing an anti-hunting force.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US674348XA | 1949-01-28 | 1949-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB674348A true GB674348A (en) | 1952-06-25 |
Family
ID=22075957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1315/50A Expired GB674348A (en) | 1949-01-28 | 1950-01-18 | Improvements in and relating to low impedance servo amplifier systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB674348A (en) |
-
1950
- 1950-01-18 GB GB1315/50A patent/GB674348A/en not_active Expired
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