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GB1469374A - Frequency-doubler circuit - Google Patents

Frequency-doubler circuit

Info

Publication number
GB1469374A
GB1469374A GB2703675A GB2703675A GB1469374A GB 1469374 A GB1469374 A GB 1469374A GB 2703675 A GB2703675 A GB 2703675A GB 2703675 A GB2703675 A GB 2703675A GB 1469374 A GB1469374 A GB 1469374A
Authority
GB
United Kingdom
Prior art keywords
frequency
sine wave
pulse train
mark
rectified
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
GB2703675A
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.)
Unisys Corp
Original Assignee
Burroughs 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 Burroughs Corp filed Critical Burroughs Corp
Priority to GB2703675A priority Critical patent/GB1469374A/en
Publication of GB1469374A publication Critical patent/GB1469374A/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
    • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • 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
    • H03K5/00006—Changing the frequency

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

1469374 Frequency doubler BURROUGHS CORP 26 June 1975 27036/75 Heading H3P A frequency doubler produces a pulse train output, Fig. 3, having a frequency twice that of an input sine wave, by an arrangement in which the sine wave is full wave rectified 3, Fig. 2, and the resulting signal is thresholded 6 with a level which, for a unity mark/space ratio, is approximately 0À7 times the peak level of the rectified sine wave, the peak level being detected 4 by a conventional diode D3 and capacitor C and appropriately scaled by a potentiometer 51, whose setting determines the mark/space ratio of the output pulse train.
GB2703675A 1975-06-26 1975-06-26 Frequency-doubler circuit Expired GB1469374A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2703675A GB1469374A (en) 1975-06-26 1975-06-26 Frequency-doubler circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2703675A GB1469374A (en) 1975-06-26 1975-06-26 Frequency-doubler circuit

Publications (1)

Publication Number Publication Date
GB1469374A true GB1469374A (en) 1977-04-06

Family

ID=10253129

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2703675A Expired GB1469374A (en) 1975-06-26 1975-06-26 Frequency-doubler circuit

Country Status (1)

Country Link
GB (1) GB1469374A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136233A (en) * 1983-02-28 1984-09-12 Westinghouse Electric Corp Circuit for sensing the status of a voltage input over a wide range of voltage levels and waveforms
EP0448048A3 (en) * 1990-03-20 1991-12-18 Fujitsu Limited A signal detecting circuit for detecting a signal specified in a designated frequency
EP0701324A4 (en) * 1993-09-17 1997-05-28 Oki Electric Ind Co Ltd Clock multiplying signal control circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136233A (en) * 1983-02-28 1984-09-12 Westinghouse Electric Corp Circuit for sensing the status of a voltage input over a wide range of voltage levels and waveforms
EP0448048A3 (en) * 1990-03-20 1991-12-18 Fujitsu Limited A signal detecting circuit for detecting a signal specified in a designated frequency
EP0701324A4 (en) * 1993-09-17 1997-05-28 Oki Electric Ind Co Ltd Clock multiplying signal control circuit

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee