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GB801455A - Transistor-controlled oscillatory circuits - Google Patents

Transistor-controlled oscillatory circuits

Info

Publication number
GB801455A
GB801455A GB26683/56A GB2668356A GB801455A GB 801455 A GB801455 A GB 801455A GB 26683/56 A GB26683/56 A GB 26683/56A GB 2668356 A GB2668356 A GB 2668356A GB 801455 A GB801455 A GB 801455A
Authority
GB
United Kingdom
Prior art keywords
transistor
output
oscillator
shunt
rectified
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
GB26683/56A
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.)
AT&T Teletype Corp
Original Assignee
Teletype 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 Teletype Corp filed Critical Teletype Corp
Publication of GB801455A publication Critical patent/GB801455A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0052—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using diodes
    • 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
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • 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
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/0034—Circuit elements of oscillators including a buffer amplifier
    • 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
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/006—Functional aspects of oscillators
    • H03B2200/0066—Amplitude or AM detection

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)

Abstract

801,455. Automatic voltage control systems. TELETYPE CORPORATION. Aug. 31, 1956 [Oct. 27, 1955], No. 26683/56. Class 38 (4). [Also in Group XL (c)] The output from a transistor oscillator is maintained constant by rectifying an output from the collector of a transistor in the oscillator and controlling the impedance of a diode circuit connected in shunt with the input of the transistor in accordance with the rectified output. The Figure shows an oscillator comprising transistors 10 and 15 having a positive feedback circuit comprising crystal 18. The output of the oscillator is amplified in a transistor 28 and part of the resulting oscillation is rectified at 36 and applied to a germanium varistor 42 in shunt with the emitter of transistor 10. The amplitude of the oscillation output may be controlled by a resistor 23.
GB26683/56A 1955-10-27 1956-08-31 Transistor-controlled oscillatory circuits Expired GB801455A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US801455XA 1955-10-27 1955-10-27

Publications (1)

Publication Number Publication Date
GB801455A true GB801455A (en) 1958-09-17

Family

ID=22155541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26683/56A Expired GB801455A (en) 1955-10-27 1956-08-31 Transistor-controlled oscillatory circuits

Country Status (1)

Country Link
GB (1) GB801455A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980865A (en) * 1958-04-14 1961-04-18 Hazeltine Research Inc Stabilized transistor oscillator
US3134947A (en) * 1961-11-28 1964-05-26 Honeywell Regulator Co Amplitude stabilized transistor oscillator
US3218568A (en) * 1962-09-12 1965-11-16 Rca Corp Amplifier including momentary gain increasing means

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980865A (en) * 1958-04-14 1961-04-18 Hazeltine Research Inc Stabilized transistor oscillator
US3134947A (en) * 1961-11-28 1964-05-26 Honeywell Regulator Co Amplitude stabilized transistor oscillator
US3218568A (en) * 1962-09-12 1965-11-16 Rca Corp Amplifier including momentary gain increasing means

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