GB600205A - Improvements in or relating to thermionic valve generating circuits - Google Patents

Improvements in or relating to thermionic valve generating circuits

Info

Publication number
GB600205A
GB600205A GB976345A GB976345A GB600205A GB 600205 A GB600205 A GB 600205A GB 976345 A GB976345 A GB 976345A GB 976345 A GB976345 A GB 976345A GB 600205 A GB600205 A GB 600205A
Authority
GB
United Kingdom
Prior art keywords
voltage
anode
waveform
grid
cathode
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
GB976345A
Original Assignee
Alban Harrison
Filing date
Publication date
Application filed by Alban Harrison filed Critical Alban Harrison
Publication of GB600205A publication Critical patent/GB600205A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K4/00Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/12Generating 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
    • H03K4/20Generating 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 using a tube with negative feedback by capacitor, e.g. Miller integrator

Abstract

600,205. Pulse circuits. HARRISON, A. April 18, 1945, No. 9763. [Class 40 (vi)] In a Miller integrating circuit, a conductive impedance is included in the cathode circuit and means are provided for feeding an external voltage across this impedance, so that the injected waveform is superimposed on the linear fall in anode voltage which occurs through normal operation of the Miller circuit. In Fig. 2, the anode and control grids are connected to H.T. positive through loads 2 and 3 and the suppressor grid is normally biassed beyond cutoff, so that current through the valve may be released by a positive pulse on the suppressor grid. The resulting fall in anode voltage is fed to the control grid through condenser 4, which tends to reduce anode current and the potential of the grid rises as condenser 4 discharges, thus tending to increase anode current. A steady state is reached where the control grid maintains a substantially steady potential, while a substantially linear fall in anode voltage occurs. A proof is given that the injection of a waveform voltage to the cathode across impedance 7 produces an equal variation in the voltage at the anode, so that the final voltage of the anode is the algebraic sum of the cathode applied waveform and the linear fall voltage. The final waveform may be used to select any one of the input oscillations by arranging for it to be applied to a switching device (such as a separate valve biassed to a voltage below cutoff) which will operate when the voltage drops to the predetermined value. Specification 580,891 is referred to.
GB976345A 1945-04-18 Improvements in or relating to thermionic valve generating circuits Expired GB600205A (en)

Publications (1)

Publication Number Publication Date
GB600205A true GB600205A (en) 1948-04-02

Family

ID=1629965

Family Applications (1)

Application Number Title Priority Date Filing Date
GB976345A Expired GB600205A (en) 1945-04-18 Improvements in or relating to thermionic valve generating circuits

Country Status (1)

Country Link
GB (1) GB600205A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2689300A (en) * 1948-06-15 1954-09-14 Roelof M M Oberman Arrangement to obtain a voltage interval multiplier
US2972110A (en) * 1958-05-22 1961-02-14 Robert L Watters Pulse-generating circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2689300A (en) * 1948-06-15 1954-09-14 Roelof M M Oberman Arrangement to obtain a voltage interval multiplier
US2972110A (en) * 1958-05-22 1961-02-14 Robert L Watters Pulse-generating circuit

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