GB767606A - Improvements relating to electrical sawtooth waveform generators - Google Patents

Improvements relating to electrical sawtooth waveform generators

Info

Publication number
GB767606A
GB767606A GB1683154A GB1683154A GB767606A GB 767606 A GB767606 A GB 767606A GB 1683154 A GB1683154 A GB 1683154A GB 1683154 A GB1683154 A GB 1683154A GB 767606 A GB767606 A GB 767606A
Authority
GB
United Kingdom
Prior art keywords
potential
screen
anode
suppressor
grid
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
GB1683154A
Inventor
Anthony Hall
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB1683154A priority Critical patent/GB767606A/en
Publication of GB767606A publication Critical patent/GB767606A/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
    • H03K4/20—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 using a tube with negative feedback by capacitor, e.g. Miller integrator
    • H03K4/22—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 using a tube with negative feedback by capacitor, e.g. Miller integrator combined with transitron, e.g. phantastron, sanatron

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details Of Television Scanning (AREA)

Abstract

767,606. Saw-tooth generating circuits. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 23, 1955 [June 8, 1954], No. 16831/54. Class 40(6) In a miller transitron saw tooth generator of the type in which the miller capacitance is coupled between anode and grid through a cathode follower, the transitron coupling between screen and suppressor grids is of the direct current type and a variable point in the cathode circuit of the cathode follower is connected to the screen and suppressor grids so that part of the positive going fly back voltage wave may retrigger the sweep when the anode potential reaches a predetermined level. In the circuit shown the miller capacitance discharges linearly until the anode potential of the valve V2 bottoms. The current is then diverted to the screen grid thus lowering the screen grid potential. The coupling through'R4 causes the suppressor potential to decrease correspondingly, hastening the lowering of the screen grid potential and this continues until the anode current is cut off. This causes the anode' potential to rise and when the corresponding potential at the tapping on cathode follower resistance' R8 has risen sufficiently the diode V3 conducts and supplies a positive going voltage to the screen and suppressor grids and initiating the next sweep. As the tapping of potentiometer R8 is moved towards the earthy end the repetition frequency of the output wave is decreased and the amplitude increased until a point is reached at which the circuit is no longer free running. Synchronizing or triggering voltages may be applied to the screen and suppressor grid through a diode V1.
GB1683154A 1954-06-08 1954-06-08 Improvements relating to electrical sawtooth waveform generators Expired GB767606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1683154A GB767606A (en) 1954-06-08 1954-06-08 Improvements relating to electrical sawtooth waveform generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1683154A GB767606A (en) 1954-06-08 1954-06-08 Improvements relating to electrical sawtooth waveform generators

Publications (1)

Publication Number Publication Date
GB767606A true GB767606A (en) 1957-02-06

Family

ID=10084468

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1683154A Expired GB767606A (en) 1954-06-08 1954-06-08 Improvements relating to electrical sawtooth waveform generators

Country Status (1)

Country Link
GB (1) GB767606A (en)

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