GB1261240A - Current controlled oscillator circuit - Google Patents

Current controlled oscillator circuit

Info

Publication number
GB1261240A
GB1261240A GB2191869A GB2191869A GB1261240A GB 1261240 A GB1261240 A GB 1261240A GB 2191869 A GB2191869 A GB 2191869A GB 2191869 A GB2191869 A GB 2191869A GB 1261240 A GB1261240 A GB 1261240A
Authority
GB
United Kingdom
Prior art keywords
oscillator circuit
controlled oscillator
current controlled
transistor
source
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
GB2191869A
Inventor
Zbigniew Wiencek
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.)
BAE Systems Aerospace Inc
Original Assignee
Hazeltine 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 Hazeltine Corp filed Critical Hazeltine Corp
Priority to GB2191869A priority Critical patent/GB1261240A/en
Publication of GB1261240A publication Critical patent/GB1261240A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
    • H03C3/14—Angle modulation by means of variable impedance by means of a variable reactive element simulated by circuit comprising active element with at least three electrodes, e.g. reactance-tube circuit
    • H03C3/16—Angle modulation by means of variable impedance by means of a variable reactive element simulated by circuit comprising active element with at least three electrodes, e.g. reactance-tube circuit in which the active element simultaneously serves as the active element of an oscillator

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)

Abstract

1,261,240. Frequency modulation. HAZELTINE CORP. 30 April, 1969, No. 21918/69. Heading H3R. A crystal oscillator circuit is frequency modulated by varying the internal capacitance of an active semi-conductor device, e.g. the baseemitter capacitance of transistor 11. The transistor is the active element of an oscillator having a crystal 15 as its frequency determining circuit. The control signal is applied between the base and emitter from a source 20 connected in parallel with a capacitor 21. Either terminal of the source may be earthed.
GB2191869A 1969-04-30 1969-04-30 Current controlled oscillator circuit Expired GB1261240A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2191869A GB1261240A (en) 1969-04-30 1969-04-30 Current controlled oscillator circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2191869A GB1261240A (en) 1969-04-30 1969-04-30 Current controlled oscillator circuit

Publications (1)

Publication Number Publication Date
GB1261240A true GB1261240A (en) 1972-01-26

Family

ID=10170991

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2191869A Expired GB1261240A (en) 1969-04-30 1969-04-30 Current controlled oscillator circuit

Country Status (1)

Country Link
GB (1) GB1261240A (en)

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