GB888894A - Improvements in or relating to pulse amplitude discriminating circuits - Google Patents

Improvements in or relating to pulse amplitude discriminating circuits

Info

Publication number
GB888894A
GB888894A GB1788459A GB1788459A GB888894A GB 888894 A GB888894 A GB 888894A GB 1788459 A GB1788459 A GB 1788459A GB 1788459 A GB1788459 A GB 1788459A GB 888894 A GB888894 A GB 888894A
Authority
GB
United Kingdom
Prior art keywords
pulses
transistor
output
amplitude
standard
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
GB1788459A
Inventor
George Brian Barrie Chaplin
Alwyn Roberts Owens
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB1788459A priority Critical patent/GB888894A/en
Publication of GB888894A publication Critical patent/GB888894A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
    • H03K5/24—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K9/00—Demodulating pulses which have been modulated with a continuously-variable signal

Landscapes

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

Abstract

888,894. Transistor pulse discriminating circuits. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 12, 1960 [May 26, 1959], No. 17884/59. Class 40(6). The threshold level of a pulse amplitude discriminator is controlled by feeding pulses of standard amplitude into the input, the resulting output being gated, rectified and used to provide a bias voltage to the discriminator so that it just passes pulses of standard amplitude. As shown, an avalanche transistor J3 is triggered by any pulses arriving at terminal 8 having an amplitude above a predetermined threshold value. The negative output pulses from J3 are passed via an emitter follower J4 to the output terminal 9. Standard amplitude pulses at 50 c/s. are provided by transistor J7. The output from these pulses is selected by the gating transistor J5 (rendered conductive by 50 c/s. pulses from TR2), rectified by a diode pump circuit comprising components D2, D3, C2, C3 and the resulting direct current, passed by the emitter follower J6 to control the threshold level of J3 so that standard amplitude pulses are just sufficient to trigger the discriminator. The standard pulses are eliminated from terminal 9 by means not shown. In Fig. 1 (not shown) the controlling bias is derived by rectifying the output of a blocking oscillator fed from the gating circuit and is used to control the gain of the first stage of a transistor amplifier preceding the discriminating trigger circuit.
GB1788459A 1959-05-26 1959-05-26 Improvements in or relating to pulse amplitude discriminating circuits Expired GB888894A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1788459A GB888894A (en) 1959-05-26 1959-05-26 Improvements in or relating to pulse amplitude discriminating circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1788459A GB888894A (en) 1959-05-26 1959-05-26 Improvements in or relating to pulse amplitude discriminating circuits

Publications (1)

Publication Number Publication Date
GB888894A true GB888894A (en) 1962-02-07

Family

ID=10102913

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1788459A Expired GB888894A (en) 1959-05-26 1959-05-26 Improvements in or relating to pulse amplitude discriminating circuits

Country Status (1)

Country Link
GB (1) GB888894A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3312908A (en) * 1964-05-15 1967-04-04 Karl G Porges Device for superregulation of an amplifier-discriminator circuit
FR2214206A1 (en) * 1973-01-16 1974-08-09 Eltro Gmbh

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3312908A (en) * 1964-05-15 1967-04-04 Karl G Porges Device for superregulation of an amplifier-discriminator circuit
FR2214206A1 (en) * 1973-01-16 1974-08-09 Eltro Gmbh

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