GB679550A - Improvements relating to sawtooth waveform generators - Google Patents

Improvements relating to sawtooth waveform generators

Info

Publication number
GB679550A
GB679550A GB2028149A GB2028149A GB679550A GB 679550 A GB679550 A GB 679550A GB 2028149 A GB2028149 A GB 2028149A GB 2028149 A GB2028149 A GB 2028149A GB 679550 A GB679550 A GB 679550A
Authority
GB
United Kingdom
Prior art keywords
valve
anode
circuit
wave
capacitor
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
GB2028149A
Inventor
Keith Gordon Huntley
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB2028149A priority Critical patent/GB679550A/en
Publication of GB679550A publication Critical patent/GB679550A/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
    • 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
    • H03K4/26—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 current is produced through an inductor
    • H03K4/39—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 current is produced through an inductor using a tube operating as an amplifier
    • H03K4/43—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 current is produced through an inductor using a tube operating as an amplifier combined with means for generating the driving pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)

Abstract

679,550. Saw-tooth generating circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 17, 1950 [Aug. 4, 1949], No. 20281/49. Class 40 (vi). A linear saw-tooth wave is produced at the anode of a valve from a non-linear wave fed to the cathode by providing a time constant circuit in a negative feed-back path between the anode and control grid. In the circuit shown the non-linear wave is generated by charging a capacitor 1 and discharging it rapidly through a valve 4 and the wave is fed to the cathode of a valve 8 through a valve 6. The negative feedback path between the anode and grid of valve 8 includes a circuit 10, 11, preferably having a time constant equal to that of capacitor 1 and resistor 2. In an alternative circuit (Fig. 2, not shown) an output coil is provided in the anode circuit of valve 8 and a cathode follower is provided between the anode and the input of the feed-back capacitor 10.
GB2028149A 1949-08-04 1949-08-04 Improvements relating to sawtooth waveform generators Expired GB679550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2028149A GB679550A (en) 1949-08-04 1949-08-04 Improvements relating to sawtooth waveform generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2028149A GB679550A (en) 1949-08-04 1949-08-04 Improvements relating to sawtooth waveform generators

Publications (1)

Publication Number Publication Date
GB679550A true GB679550A (en) 1952-09-17

Family

ID=10143387

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2028149A Expired GB679550A (en) 1949-08-04 1949-08-04 Improvements relating to sawtooth waveform generators

Country Status (1)

Country Link
GB (1) GB679550A (en)

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