GB892959A - Improvements in oscillators - Google Patents

Improvements in oscillators

Info

Publication number
GB892959A
GB892959A GB31523/60A GB3152360A GB892959A GB 892959 A GB892959 A GB 892959A GB 31523/60 A GB31523/60 A GB 31523/60A GB 3152360 A GB3152360 A GB 3152360A GB 892959 A GB892959 A GB 892959A
Authority
GB
United Kingdom
Prior art keywords
resistance
variable
oscillator
amplifier
particular value
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
GB31523/60A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB892959A publication Critical patent/GB892959A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
    • H03B5/24—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator active element in amplifier being semiconductor device

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

892,959. Transistor oscillating circuits; keying carrier frequencies. WESTINGHOUSE ELECTRIC CORPORATION. Sept. 13, 1960 [Jan. 27, 1960], No. 31523/60. Classes 40(5) and 40(6). [Also in Groups XXXVI and XL(b)] A narrow band rejection filter 54 of the type disclosed in Specification 882,974, comprising a distributed resistance and capacitance structure in combination with further resistance 51 is used in a feedback path around an amplifier 55 to form an oscillator. The amplifier 55 may be of the transistor type and may be structurally combined with the distributed resistance and capacitance structure. The resistance 51 in the filter may be variable and used to indicate a particular value of a variable quantity, e.g. position, strain, temperature, by use of a suitable resistance element, utilizing the property of the oscillator that for values of the resistance 51 greater than a particular value oscillations cease. The resistance 51 may alternatively be replaced by a direct connection to earth, the network 54 being completed by a condenser, which may be variable, interconnecting its input and output terminals.
GB31523/60A 1960-01-27 1960-09-13 Improvements in oscillators Expired GB892959A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US892959XA 1960-01-27 1960-01-27

Publications (1)

Publication Number Publication Date
GB892959A true GB892959A (en) 1962-04-04

Family

ID=22216831

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31523/60A Expired GB892959A (en) 1960-01-27 1960-09-13 Improvements in oscillators

Country Status (1)

Country Link
GB (1) GB892959A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345582A (en) * 1966-09-13 1967-10-03 Honeywell Inc Semiconductor condition responsive phase shift oscillators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345582A (en) * 1966-09-13 1967-10-03 Honeywell Inc Semiconductor condition responsive phase shift oscillators

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