GB399408A - Generator of relaxation oscillations of controlled frequency - Google Patents

Generator of relaxation oscillations of controlled frequency

Info

Publication number
GB399408A
GB399408A GB7947/33A GB794733A GB399408A GB 399408 A GB399408 A GB 399408A GB 7947/33 A GB7947/33 A GB 7947/33A GB 794733 A GB794733 A GB 794733A GB 399408 A GB399408 A GB 399408A
Authority
GB
United Kingdom
Prior art keywords
tube
generator
discharge tube
relaxation oscillations
march
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
GB7947/33A
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.)
Loewe Opta GmbH
Original Assignee
Loewe Opta GmbH
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 Loewe Opta GmbH filed Critical Loewe Opta GmbH
Publication of GB399408A publication Critical patent/GB399408A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/12—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
    • C22C27/02—Alloys based on vanadium, niobium, or tantalum
    • 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
    • H03B13/00—Generation of oscillations using deflection of electron beam in a cathode-ray tube
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/04—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by counting or integrating cycles of oscillations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K9/00—Demodulating pulses which have been modulated with a continuously-variable signal
    • H03K9/06—Demodulating pulses which have been modulated with a continuously-variable signal of frequency- or rate-modulated pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Amplitude Modulation (AREA)

Abstract

399,408. Converting. RADIOAKT.- GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and SCHLESINGER, K., 39, Friedrichstrasse, Friedrichshagen, both in Berlin. March 16, 1933, No. 7947. Convention date, March 17, 1932. [Class 38 (ii).] The frequency of a generator of relaxation oscillations is controlled by an alternating potential applied to the discharge tube 3 which is so arranged that impulses in one direction only are effective. The Figure shows a. condenser 2 charged through a tube 1 and dis-, charged by tube 3 which has a negative bias such that it is operated only by the positive peaks of the control potential. The discharge tube preferably has a high mutual conductance and is a screen-grid tube, and operated at the lower bend of the valve characteristic. A limiting amplifier 4 may be provided with a transformer coupled to the discharge tube 3.
GB7947/33A 1932-03-17 1933-03-16 Generator of relaxation oscillations of controlled frequency Expired GB399408A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE399408X 1932-03-17

Publications (1)

Publication Number Publication Date
GB399408A true GB399408A (en) 1933-10-05

Family

ID=6397484

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7947/33A Expired GB399408A (en) 1932-03-17 1933-03-16 Generator of relaxation oscillations of controlled frequency

Country Status (4)

Country Link
DE (1) DE572142C (en)
FR (1) FR752532A (en)
GB (1) GB399408A (en)
NL (2) NL103578C (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE407565A (en) * 1934-03-17
DE763069C (en) * 1935-02-28 1953-02-09 Rca Corp Circuit arrangement for phase shifting pulses
DE767199C (en) * 1935-03-27 1952-03-31 Telefunken Gmbh Circuit for generating short pulses
DE767529C (en) * 1936-03-17 1952-09-29 Telefunken Gmbh Device for generating approximately rectangular scanning pulses used for modulating the license plate transmitter in a method for determining direction by means of rotary radio beacons
DE757154C (en) * 1938-02-16 1952-09-15 Csf Pulse generator
DE755390C (en) * 1938-02-17 1953-08-10 Lorenz C Ag Arrangement for the control of tilting devices by means of synchronizing impulses which pass through a separating device and have lost their edge steepness as a result
DE767944C (en) * 1938-09-01 1955-04-07 Siemens App Device for generating electrical measuring pulses by means of grid-controlled electron tubes
BE477722A (en) * 1939-11-03

Also Published As

Publication number Publication date
DE572142C (en) 1933-03-10
NL31724C (en)
FR752532A (en) 1933-09-25
NL103578C (en)

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