GB791313A - Improvements relating to electric regulating apparatus - Google Patents
Improvements relating to electric regulating apparatusInfo
- Publication number
- GB791313A GB791313A GB3083854A GB3083854A GB791313A GB 791313 A GB791313 A GB 791313A GB 3083854 A GB3083854 A GB 3083854A GB 3083854 A GB3083854 A GB 3083854A GB 791313 A GB791313 A GB 791313A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- reversely
- output
- measured
- reactor
- 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 current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
- G05F1/32—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using magnetic devices having a controllable degree of saturation as final control devices
- G05F1/34—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using magnetic devices having a controllable degree of saturation as final control devices combined with discharge tubes or semiconductor devices
- G05F1/38—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using magnetic devices having a controllable degree of saturation as final control devices combined with discharge tubes or semiconductor devices semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
791,313. Automatic voltage control systems. WESTINGHOUSE BRAKE & SIGNAL CO.,. Ltd., and MARTIN, R. G. Sept. 29, 1955 [Oct. 26, 1954], No. 30838/54. Class 38 (4). In an automatic voltage stabilizer the error in D.C. output voltage is measured by a transistor oscillator which provides an output varying in amplitude with the voltage to be measured. The output voltage of a rectifier 3 which is supplied from A.C. mains in series with a saturable reactor 5, is compared with a reference voltage tapped at 8 from a source stabilised by a neon tube 12. The resultant is applied to an earthed-base transistor oscillator 14 via an integrating network 2, 24, the capacitor 24 of which is shunted by reversely-poled rectifiers forming a non-linear resistor. The network increases the time constant of the circuit but its effect is reduced by the non-linear resistor 30 when the error signal is large. The network is claimed and described in Specification 791,314. The output of the oscillator 14 is amplified at 25, rectified at 27 and used to control the reactor 5. In a modification, Fig. 2 (not shown), a pair of opposed control windings on the reactor are supplied from two similar oscillators which are reversely connected to the voltage to be measured via reversely-poled bias batteries. In a further modification, Fig. 3 (not shown), two oscillators of reversed polarity characteristic are used. In another modification, Fig. 4 (not shown) the main rectifier and the reference source are connected through resistors in parallel opposition instead of in series.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3083854A GB791313A (en) | 1954-10-26 | 1954-10-26 | Improvements relating to electric regulating apparatus |
| FR1145682D FR1145682A (en) | 1954-10-26 | 1955-10-18 | Electric regulation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3083854A GB791313A (en) | 1954-10-26 | 1954-10-26 | Improvements relating to electric regulating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB791313A true GB791313A (en) | 1958-02-26 |
Family
ID=10313934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3083854A Expired GB791313A (en) | 1954-10-26 | 1954-10-26 | Improvements relating to electric regulating apparatus |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1145682A (en) |
| GB (1) | GB791313A (en) |
-
1954
- 1954-10-26 GB GB3083854A patent/GB791313A/en not_active Expired
-
1955
- 1955-10-18 FR FR1145682D patent/FR1145682A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1145682A (en) | 1957-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1119003A (en) | Electric analogue signal multiplier | |
| GB1178348A (en) | Negative Feedback Circuit Employing Combination Amplifier and Lead-Lag Compensation Network. | |
| GB1516397A (en) | Transducer circuit | |
| US3113274A (en) | Analog squaring device | |
| GB1285103A (en) | Electrical measurement converter based on the two-wire principle | |
| GB791313A (en) | Improvements relating to electric regulating apparatus | |
| US2889517A (en) | Electrical measuring apparatus | |
| GB821089A (en) | Voltage regulator | |
| GB773470A (en) | Improvements in or relating to detector-circuit arrangements | |
| GB764861A (en) | Improvements relating to square wave voltage generators | |
| US3025466A (en) | Impedance measuring apparatus | |
| GB1093538A (en) | Improvements in or relating to switched frequency oscillators | |
| US2659856A (en) | Duration ratio regulator | |
| GB765444A (en) | Edge correcting system for visual image transference apparatus | |
| US3321706A (en) | Comparison voltage measuring circuits using condenser charging and discharging | |
| GB1402546A (en) | Adjustable frequency oscillator | |
| GB970370A (en) | Alternating current bridge circuit | |
| GB787691A (en) | Improvements in or relating to amplifying and rectifying circuit-arrangements | |
| GB1121760A (en) | Amplitude-to-frequency converters | |
| GB864963A (en) | Improvements in or relating to integrator circuit arrangements | |
| GB939757A (en) | Improvements in well logging apparatus | |
| GB1423399A (en) | Electronic analogue operational circuit | |
| GB890176A (en) | Direct current amplifier device | |
| GB1106902A (en) | Improvements in or relating to automatic balancing direct current potentiometers | |
| GB792418A (en) | Improvements in electric circuits including amplitude limiting semiconductor devices |