GB776228A - Improvements in or relating to frequency doubling circuit arrangement - Google Patents

Improvements in or relating to frequency doubling circuit arrangement

Info

Publication number
GB776228A
GB776228A GB25522/55A GB2552255A GB776228A GB 776228 A GB776228 A GB 776228A GB 25522/55 A GB25522/55 A GB 25522/55A GB 2552255 A GB2552255 A GB 2552255A GB 776228 A GB776228 A GB 776228A
Authority
GB
United Kingdom
Prior art keywords
valve
anode
grid
frequency doubling
voltage
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
GB25522/55A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB776228A publication Critical patent/GB776228A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/78—Generating a single train of pulses having a predetermined pattern, e.g. a predetermined number
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/40—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes
    • H01J17/44—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes having one or more control electrodes
    • 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
    • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • H03B19/06—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes
    • H03B19/08—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes by means of a discharge device
    • H03B19/10—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes by means of a discharge device using multiplication only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
    • H01J2893/0065—Electrode systems
    • H01J2893/0068—Electrode systems electrode assembly with control electrodes, e.g. including a screen

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
  • Particle Accelerators (AREA)

Abstract

776,228. Frequency doubling circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 6, 1955 [Sept. 9, 1954], No- 25522/55. Class 40(6) A frequency doubler comprises two valves having a common cathode resistor and having the anode of the first valveconnected to a tapping on the anode load of the second, the input signal being applied to the grid of the first valve and the grid of the second being earthed. It. is explained that as the instantaneous voltage Ui on the first grid increases from cut off value V1 (Fig. 2) the anode current of the first value increases and that of the second decreases so that the anode voltage Va of the second valve increases until at the point Vo the current in the second valve cuts off whereupon the increasing current in the first valve causes the voltage to decrease again. Accordingly if the first valve is biased to the point Vo, frequency doubling of the input signal takes place. It is stated that by suitable choice of valves the characteristic of the circuit may be made symmetrical and a substantial sinusoidal voltage output may be obtained.
GB25522/55A 1954-09-09 1955-09-06 Improvements in or relating to frequency doubling circuit arrangement Expired GB776228A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL776228X 1954-09-09

Publications (1)

Publication Number Publication Date
GB776228A true GB776228A (en) 1957-06-05

Family

ID=19829993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25522/55A Expired GB776228A (en) 1954-09-09 1955-09-06 Improvements in or relating to frequency doubling circuit arrangement

Country Status (5)

Country Link
US (1) US2835806A (en)
DE (1) DE955696C (en)
FR (1) FR1130901A (en)
GB (1) GB776228A (en)
NL (3) NL86357C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3681705A (en) * 1969-12-30 1972-08-01 Lewis C Spence Circuit and method for enhancement of signal-noise ratio

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2230243A (en) * 1938-06-28 1941-02-04 Philip M Haffcke Signal selection by amplitude discrimination
US2273090A (en) * 1940-02-03 1942-02-17 Rca Corp Superregenerative limiter

Also Published As

Publication number Publication date
NL190662A (en)
FR1130901A (en) 1957-02-13
NL174285B (en)
NL86357C (en)
US2835806A (en) 1958-05-20
DE955696C (en) 1957-01-10

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