GB639299A - Improvements in or relating to circuit-arrangements of the kind comprising a crystaloscillator - Google Patents

Improvements in or relating to circuit-arrangements of the kind comprising a crystaloscillator

Info

Publication number
GB639299A
GB639299A GB6436/48A GB643648A GB639299A GB 639299 A GB639299 A GB 639299A GB 6436/48 A GB6436/48 A GB 6436/48A GB 643648 A GB643648 A GB 643648A GB 639299 A GB639299 A GB 639299A
Authority
GB
United Kingdom
Prior art keywords
voltage
valve
oscillator
synchronizing
switch
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
GB6436/48A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB639299A publication Critical patent/GB639299A/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
    • H03B5/34—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 vacuum tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/06—Arrangements for supplying the carrier waves ; Arrangements for supplying synchronisation signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/06—Arrangements for supplying the carrier waves ; Arrangements for supplying synchronisation signals
    • H04J1/065—Synchronisation of carrier sources at the receiving station with the carrier source at the transmitting station

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

639,299. Valve generating circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 1, 1948, No. 6436. Convention date, March 4, 1947. [Class 40 (vi)] A discharge tube oscillator 12 stabilized by a piezo-electric crystal 15 has an alternating synchronizing voltage applied to its control grid across a circuit containing the crystal. The synchronizing voltage is applied to terminals 7, 8 and is taken from a winding 10 coupled to the anode circuit of an amplifier 9 and applied through switch S 1 across resistance 11. The synchronizing voltage is effectively applied across circuit 14, 15, 29, and the voltage across condenser 14 is applied to the control grid of valve 12 to effect synchronization. The output is taken from a transformer 17 in the anode circuit and fed to a load 16, a glowdischarge tube 18 serving to limit the output voltage. A sample of the synchronizing voltage from a winding 20, and of the oscillator voltage from a winding 21, are fed to a ring modulator 30 to give, across resistance 22, a voltage which is a measure of the phase difference between the two voltages. An adjustable phase-shift network 23 is interposed so that for a desired maximum phase difference between the synchronizing and oscillator voltages the voltage across resistance 22 will cause a valve 24 to become conductive. This causes operation of relay Re<2> to energize an alarm lamp 26 and to move switch S2 to position 1 to put a negative cut-off bias on valve 9 so as to intercept the synchronizing voltage. This causes operation of a relay Re<1> in the anode circuit of valve 9 to move switch 8 1 to. position 1 to connect the output to load resistance 28. Oscillator 12 then runs freely. To resynchronize, switch S2 is moved to position 1 and lamp 26 flashes periodically. Condenser 29 is varied to trim the oscillator frequency until the frequencies are equal as shown by the lamp 26 ceasing to flash. Switch S1 is then moved to position 1.
GB6436/48A 1947-03-04 1948-03-01 Improvements in or relating to circuit-arrangements of the kind comprising a crystaloscillator Expired GB639299A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL269951X 1947-03-04

Publications (1)

Publication Number Publication Date
GB639299A true GB639299A (en) 1950-06-28

Family

ID=19781882

Family Applications (2)

Application Number Title Priority Date Filing Date
GB6436/48A Expired GB639299A (en) 1947-03-04 1948-03-01 Improvements in or relating to circuit-arrangements of the kind comprising a crystaloscillator
GB21297/49A Expired GB675105A (en) 1947-03-04 1949-08-16 Improvements in or relating to automatic frequency-control circuits for electric oscillators

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB21297/49A Expired GB675105A (en) 1947-03-04 1949-08-16 Improvements in or relating to automatic frequency-control circuits for electric oscillators

Country Status (5)

Country Link
BE (1) BE490686A (en)
CH (2) CH269951A (en)
DE (2) DE806555C (en)
FR (2) FR962564A (en)
GB (2) GB639299A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL86620C (en) * 1951-04-09
DE916893C (en) * 1952-05-24 1954-08-19 Telefunken Gmbh Device for triggering a warning signal with an automatic frequency control
DE1147991B (en) * 1955-05-04 1963-05-02 Felten & Guilleaume Gmbh Circuit arrangement for the automatic, in-phase connection of a synchronizing AC voltage to one or more vibration generators of the same nominal frequency
NL107041C (en) * 1957-01-30
DE1175268B (en) * 1962-09-12 1964-08-06 Siemens Ag Pulling device for basic generators used in carrier frequency systems

Also Published As

Publication number Publication date
DE807697C (en) 1951-07-02
FR993365A (en) 1951-10-30
CH275998A (en) 1951-06-15
DE806555C (en) 1951-06-14
GB675105A (en) 1952-07-02
FR962564A (en) 1950-06-14
BE490686A (en) 1950-02-17
CH269951A (en) 1950-07-31

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