GB561389A - Improvements relating to the stabilisation of a direct current voltage - Google Patents
Improvements relating to the stabilisation of a direct current voltageInfo
- Publication number
- GB561389A GB561389A GB1856842A GB1856842A GB561389A GB 561389 A GB561389 A GB 561389A GB 1856842 A GB1856842 A GB 1856842A GB 1856842 A GB1856842 A GB 1856842A GB 561389 A GB561389 A GB 561389A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- series
- neon tubes
- grid
- shunt
- 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
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or currentÂ
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is DC
- G05F1/52—Regulating voltage or current wherein the variable actually regulated by the final control device is DC using discharge tubes in series with the load as final control devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
561,389. Automatic regulation. SIEMENS BROS. & CO., Ltd., ROSEN, A., and ARCUS.' G. W. Dec. 31, 1942, No. 18568. [Class 38 (iv)] A d.c. voltage is stabilized by a screen-grid thermionic valve in series between a source and the load circuit, a constant voltage device or devices, such as neon tubes, being connected in one or more shunt circuits. As shown, the valve T11 has its screen grid connected to a point between two of a number of neon tubes T1 to T10 in a shunt circuit from a point between two resistances R1, R2 in series with the valve, so that by adjusting the resistance R1 the potential of the control grid may be biassed to overcome the tendency of the screen grid to change the conductivity of the valve when the source voltage changes. The constant current through the valve may be varied by adjusting the resistance R2. A second shunt circuit of neon tubes T12 to T20 may be connected after the valve and the load circuit may be variably tapped across these. A network comprising more than two series resistances or constant current devices with a like number of shunt circuits may be used, but the thermionic valve is preferably the last of the series. To prevent overload on this valve, a relay operated by a coil R in series with one or more neon tubes and in parallel with the valve may be adapted to disconnect the load circuit. A ballast resistance BR prevents change in the cathode heating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1856842A GB561389A (en) | 1942-12-31 | 1942-12-31 | Improvements relating to the stabilisation of a direct current voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1856842A GB561389A (en) | 1942-12-31 | 1942-12-31 | Improvements relating to the stabilisation of a direct current voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB561389A true GB561389A (en) | 1944-05-17 |
Family
ID=10114685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1856842A Expired GB561389A (en) | 1942-12-31 | 1942-12-31 | Improvements relating to the stabilisation of a direct current voltage |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB561389A (en) |
-
1942
- 1942-12-31 GB GB1856842A patent/GB561389A/en not_active Expired
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