GB699995A - Improvements in and relating to signal discriminators - Google Patents

Improvements in and relating to signal discriminators

Info

Publication number
GB699995A
GB699995A GB29875/51A GB2987551A GB699995A GB 699995 A GB699995 A GB 699995A GB 29875/51 A GB29875/51 A GB 29875/51A GB 2987551 A GB2987551 A GB 2987551A GB 699995 A GB699995 A GB 699995A
Authority
GB
United Kingdom
Prior art keywords
capacitor
potential
rectifiers
dec
conduct
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
Application number
GB29875/51A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB699995A publication Critical patent/GB699995A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D13/00—Circuits for comparing the phase or frequency of two mutually-independent oscillations
    • H03D13/007—Circuits for comparing the phase or frequency of two mutually-independent oscillations by analog multiplication of the oscillations or by performing a similar analog operation on the oscillations
    • H03D13/009—Circuits for comparing the phase or frequency of two mutually-independent oscillations by analog multiplication of the oscillations or by performing a similar analog operation on the oscillations using diodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)

Abstract

699,995. Converting. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 20, 1951 [Dec. 30, 1950], No. 29875/51. Class 38 (ii). [Also in Group XL (c). In a circuit for discriminating against out-ofphase components in an A.C. signal of the same frequency as an A.C. reference voltage a capacitor is charged to a D.C. potential substantially proportional to the peak value of the in-phase component or a modulator or chopper produces an A.C. voltage in phase with the reference voltage. At the positive peak of the line voltage, rectifiers 5, 6, 7, 8, Fig. 1, conduct to cause a momentary connection to exist between input terminal 1 and. capacitor 15 so that the potential appearing on the capacitor is equal to the peak value of the in-phase component. The time constant of the network 11, 12 is such that conduction only occurs over a short period. Rectifiers 23, 25 conduct on alternate half-cycles to cause the point 18 to be near earth potential so that the D.C. potential on the capacitor 15 applied. over high resistor 16 appears as a square wave at the output terminals 29, 30.
GB29875/51A 1950-12-30 1951-12-20 Improvements in and relating to signal discriminators Expired GB699995A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US699995XA 1950-12-30 1950-12-30

Publications (1)

Publication Number Publication Date
GB699995A true GB699995A (en) 1953-11-18

Family

ID=22092499

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29875/51A Expired GB699995A (en) 1950-12-30 1951-12-20 Improvements in and relating to signal discriminators

Country Status (1)

Country Link
GB (1) GB699995A (en)

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