GB1039716A - Crystal resonators - Google Patents

Crystal resonators

Info

Publication number
GB1039716A
GB1039716A GB930165A GB930165A GB1039716A GB 1039716 A GB1039716 A GB 1039716A GB 930165 A GB930165 A GB 930165A GB 930165 A GB930165 A GB 930165A GB 1039716 A GB1039716 A GB 1039716A
Authority
GB
United Kingdom
Prior art keywords
crystal
junction
inductor
march
terminals
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
GB930165A
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.)
Bendix Corp
Original Assignee
Bendix 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 Bendix Corp filed Critical Bendix Corp
Publication of GB1039716A publication Critical patent/GB1039716A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
    • H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
    • 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
    • H03C3/22—Angle modulation by means of variable impedance by means of a variable reactive element the element being a semiconductor diode, e.g. varicap diode

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

1,039,716. Crystal resonators; frequency modulation. BENDIX CORPORATION. March 4, 1965 [March 5, 1964], No. 9301/65. Headings H3R and H3U. A piezo-electric crystal 10 is connected in series between terminals X, X with an inductor 12 and a semi-conductor junction 14 having a capacitive reactance which is variable by a variable D.C. voltage applied across its terminals. The junction 14 and inductor 12 are made series resonant at a frequency equal or close to the series resonant frequency of the crystal. The D.C. voltage is derived from a source 28 and is supplied to the junction 14 through a potentiometer 26 and resistive network 18, 20, 22, 24, 30, the resistors 20, 30 being temperature-sensitive so as to compensate for temperature-related changes in the crystal 10.
GB930165A 1964-03-05 1965-03-04 Crystal resonators Expired GB1039716A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34963464A 1964-03-05 1964-03-05

Publications (1)

Publication Number Publication Date
GB1039716A true GB1039716A (en) 1966-08-17

Family

ID=23373298

Family Applications (1)

Application Number Title Priority Date Filing Date
GB930165A Expired GB1039716A (en) 1964-03-05 1965-03-04 Crystal resonators

Country Status (2)

Country Link
GB (1) GB1039716A (en)
NL (1) NL6502876A (en)

Also Published As

Publication number Publication date
NL6502876A (en) 1965-09-06

Similar Documents

Publication Publication Date Title
GB1035080A (en) Piezoelectric tuned coupling element and method of making same
GB1390975A (en) Automatic engine speed control system
GB1446061A (en) Rf oscillator frequency control utilizing surface wave delay lines
US3503010A (en) Temperature compensating unit for crystal oscillators
US4020426A (en) Temperature compensation circuit for crystal oscillator
GB1481630A (en) Variable frequency oscillators
GB1039716A (en) Crystal resonators
GB1507399A (en) Wide-band oscillator with electrical frequency control
GB1084945A (en) Improvements in temperature compensation of crystal oscillators
GB1387984A (en) Transistor oscillators
GB1020080A (en) Improvements in arrangements for compensating drift effects due to temperature variation
US3299293A (en) Sinusoidal to rectangular wave converter and amplifier
US2853615A (en) Crystal controlled transistor oscillator systems
US2460800A (en) Fractional frequency generator
GB1238762A (en)
GB1130657A (en) Improvements in or relating to gunn effect oscillators
GB1163064A (en) Circuits for Controlling the Resonant Frequency of a Piezo-Electric Crystal or the like.
SU146348A1 (en) Swing Frequency Generator
FR2126090B1 (en)
GB1112637A (en) Improvements in or relating to gunn effect amplifiers and oscillators
GB967705A (en) Frequency control in electronic oscillators
GB1044048A (en) Tunnel diode frequency controlled oscillator
SU1205254A1 (en) Multivibrator
GB1119235A (en) Improvements in or relating to piezoelectric coupling elements
GB1322310A (en) Controlled oscillator