GB1153232A - Improvements in or relating to Frequency Stabilising Circuit Arrangements for Crystal Oscillators - Google Patents

Improvements in or relating to Frequency Stabilising Circuit Arrangements for Crystal Oscillators

Info

Publication number
GB1153232A
GB1153232A GB4005267A GB4005267A GB1153232A GB 1153232 A GB1153232 A GB 1153232A GB 4005267 A GB4005267 A GB 4005267A GB 4005267 A GB4005267 A GB 4005267A GB 1153232 A GB1153232 A GB 1153232A
Authority
GB
United Kingdom
Prior art keywords
bias voltage
crystal
temperature
frequency
relating
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
GB4005267A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1153232A publication Critical patent/GB1153232A/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
    • H03B5/30—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
    • H03B5/362—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 the amplifier being a single transistor
    • 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
    • H03B5/366—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 and comprising means for varying the frequency by a variable voltage or current
    • H03B5/368—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 and comprising means for varying the frequency by a variable voltage or current the means being voltage variable capacitance diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
    • H03L1/023—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using voltage variable capacitance diodes

Landscapes

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

Abstract

1,153,232. Crystal oscillator circuits. SIEMENS A.G. 1 Sept., 1967 [2 Sept., 1966], No. 40052/67. Heading H3T. In a crystal oscillator circuit having a capacitive diode D3 to which a D.C. bias voltage having a temperature dependent characteristic is applied to effect compensation of drift of the crystal frequency with temperature, the bias voltage is obtained from a circuit consisting of a centre tapped secondary winding 3 of a transformer U and two resistors R9, R10 connected to a half-wave rectifier D4. The capacitive diode D3 is supplied with a D.C. bias voltage having a temperature dependent characteristic (Fig. 3, not shown) to effect compensation of frequency drift of the crystal Q32 with temperature. The circuit for obtaining the D.C. bias voltage from the output of the oscillator includes a positive temperature coefficient resistor 9. The oscillator transistor TS is supplied with negative feedback to its base via winding 2 on the output transformer U. The amplitude of the oscillations is limited by diodes D1, D2.
GB4005267A 1966-09-02 1967-09-01 Improvements in or relating to Frequency Stabilising Circuit Arrangements for Crystal Oscillators Expired GB1153232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1966S0105668 DE1293244B (en) 1966-09-02 1966-09-02 Circuit arrangement for compensating the temperature response of quartz crystals

Publications (1)

Publication Number Publication Date
GB1153232A true GB1153232A (en) 1969-05-29

Family

ID=7526776

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4005267A Expired GB1153232A (en) 1966-09-02 1967-09-01 Improvements in or relating to Frequency Stabilising Circuit Arrangements for Crystal Oscillators

Country Status (4)

Country Link
DE (1) DE1293244B (en)
GB (1) GB1153232A (en)
NL (1) NL152412B (en)
SE (1) SE333955B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE549067C (en) * 1932-04-22 Telefunken Gmbh Arrangement for the total or partial cancellation of the temperature influence on the natural frequency of circles containing piezoelectric crystals
DE890067C (en) * 1942-04-21 1953-09-17 Aeg Arrangement to compensate the temperature error of piezoelectric measuring and control devices
FR921178A (en) * 1945-11-05 1947-04-29 Soc Indep Telegraphie Sans Fil Improvements in methods and devices for stabilizing the frequency of crystal oscillators
DE1060922B (en) * 1956-06-16 1959-07-09 Automatic Telephone & Elect Crystal oscillator with temperature compensation

Also Published As

Publication number Publication date
NL6711162A (en) 1968-03-04
NL152412B (en) 1977-02-15
DE1293244B (en) 1969-04-24
SE333955B (en) 1971-04-05

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee