GB902958A - Improvements relating to power supply arrangements - Google Patents
Improvements relating to power supply arrangementsInfo
- Publication number
- GB902958A GB902958A GB1223762A GB1223762A GB902958A GB 902958 A GB902958 A GB 902958A GB 1223762 A GB1223762 A GB 1223762A GB 1223762 A GB1223762 A GB 1223762A GB 902958 A GB902958 A GB 902958A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- output
- rectifier
- current
- transductor
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/36—Repeater circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Rectifiers (AREA)
- Dc-Dc Converters (AREA)
Abstract
902,958. Automatic current and voltage control systems. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Oct. 16, 1958 [Oct. 16, 1957], No. 12237/62. Divided out of 902,957. Class 38 (4). A telephone cable is supplied from both ends by rectifier sets which are arranged to normally supply a constant current provided the output voltage does not rise above a set value. The two characteristics therefore intersect, Fig. 9 (not shown), so that the two sets divide the total voltage between them. Each set is basically as shown in Specification 902,957, but the magnetic current discriminator D, which controls the output current, is connected in series with the D.C. terminals of a bridge rectifier AM5, the A.C. energization of which is controlled by a transductor 21 in accordance with the output voltage of the main rectifier. The output of the transductor thus rises with output voltage and is arranged to be larger than the cable current through rectifier AM5 when the voltage reaches its limiting value. Thereafter the discriminator D becomes energized via diode AM6 in accordance with the output voltage and the output is reduced to hold the voltage at this upper limit. The transductor 21 may be replaced by an impedance energized over an isolating transformer from the A.C. input to the main rectifier.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1223762A GB902958A (en) | 1957-10-16 | 1957-10-16 | Improvements relating to power supply arrangements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1223762A GB902958A (en) | 1957-10-16 | 1957-10-16 | Improvements relating to power supply arrangements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB902958A true GB902958A (en) | 1962-08-09 |
Family
ID=10000894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1223762A Expired GB902958A (en) | 1957-10-16 | 1957-10-16 | Improvements relating to power supply arrangements |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB902958A (en) |
-
1957
- 1957-10-16 GB GB1223762A patent/GB902958A/en not_active Expired
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