GB594612A - Improvements in electronic control apparatus, particularly for controlling the speedof d.c. motors - Google Patents
Improvements in electronic control apparatus, particularly for controlling the speedof d.c. motorsInfo
- Publication number
- GB594612A GB594612A GB1392645A GB1392645A GB594612A GB 594612 A GB594612 A GB 594612A GB 1392645 A GB1392645 A GB 1392645A GB 1392645 A GB1392645 A GB 1392645A GB 594612 A GB594612 A GB 594612A
- Authority
- GB
- United Kingdom
- Prior art keywords
- centre
- resistor
- rectifiers
- motors
- controlling
- 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
- 239000003990 capacitor Substances 0.000 abstract 2
- 230000003334 potential Effects 0.000 abstract 2
- 230000000903 blocking Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/26—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using discharge tubes
- H02P7/265—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using discharge tubes whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
594,612. Follow-up control systems. BURT, E. G. C. June 2, 1945, No. 13926. [Class 40 (i)] In a circuit for deriving an A.C. voltage varying in amplitude and phase in accordance with the valve and sense of the difference between two D.C. potentials, two rectifiers are connected in series with a centre-tapped resistor across a centre-tapped supply transformer. The two D.C. potentials being applied to the terminals 14 and 15 so that on the halfcycles when the rectifiers are conducting, current will flow through resistor 13 giving rise to a polarized A.C. potential in resistor 13, the A.C. component of which is taken off through blocking capacitor 18. Any higher frequencies present are byepassed by capacitor 16. A centre-tapped resistor may be used to dispense with the transformer centre tap. The rectifiers may be crystals or diodes. The circuit may be used in a system for controlling D.C. motors.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB594612A true GB594612A (en) | 1947-11-14 |
Family
ID=1730321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1392645A Expired GB594612A (en) | 1945-06-02 | Improvements in electronic control apparatus, particularly for controlling the speedof d.c. motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB594612A (en) |
-
1945
- 1945-06-02 GB GB1392645A patent/GB594612A/en not_active Expired
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