GB748257A - Phase modulation circuit - Google Patents
Phase modulation circuitInfo
- Publication number
- GB748257A GB748257A GB26017/54A GB2601754A GB748257A GB 748257 A GB748257 A GB 748257A GB 26017/54 A GB26017/54 A GB 26017/54A GB 2601754 A GB2601754 A GB 2601754A GB 748257 A GB748257 A GB 748257A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polarity
- transformer
- phase
- magnitude
- phase modulation
- 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
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C5/00—Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal
Landscapes
- Amplitude Modulation (AREA)
- Amplifiers (AREA)
Abstract
748,257. Phase-sense sensitive circuits. SPERRY CORPORATION. Sept. 8, 1954 (Nov. 30, 1953], No. 26017/54. Class 38 (4). A modulator consists of a push-pull pair of n-p-n junction transistors 10, 12 having a D.C. input signal Ei of reversible polarity applied differentially to their bases, whilst an A.C. reference signal er is applied via transformer 28 to their emitters. The output eo, which depends in phase and magnitude upon the polarity and magnitude of the D.C. input signal, is obtained at the secondary of the pushpull output transformer 32 connected across the transistor collectors. A condenser 36 tunes the secondary of the transformer 32 to resonance at the frequency of the A.C. reference signal. It is stated that p-n-p transistors may be used by reversing the polarity of the battery 34.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US748257XA | 1953-11-30 | 1953-11-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB748257A true GB748257A (en) | 1956-04-25 |
Family
ID=22121903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26017/54A Expired GB748257A (en) | 1953-11-30 | 1954-09-08 | Phase modulation circuit |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB748257A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2913597A (en) * | 1954-04-20 | 1959-11-17 | Westinghouse Electric Corp | Single transistor full wave rectifier |
DE1102218B (en) * | 1957-06-27 | 1961-03-16 | Honeywell Regulator Co | Modulation device for electrical signals |
DE1254712B (en) * | 1964-09-22 | 1967-11-23 | Tekade Felten & Guilleaume | Circuit arrangement for binary phase modulation of a carrier |
-
1954
- 1954-09-08 GB GB26017/54A patent/GB748257A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2913597A (en) * | 1954-04-20 | 1959-11-17 | Westinghouse Electric Corp | Single transistor full wave rectifier |
DE1102218B (en) * | 1957-06-27 | 1961-03-16 | Honeywell Regulator Co | Modulation device for electrical signals |
DE1254712B (en) * | 1964-09-22 | 1967-11-23 | Tekade Felten & Guilleaume | Circuit arrangement for binary phase modulation of a carrier |
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