GB484157A - Improvements in or relating to electric oscillatory circuits - Google Patents

Improvements in or relating to electric oscillatory circuits

Info

Publication number
GB484157A
GB484157A GB2933036A GB2933036A GB484157A GB 484157 A GB484157 A GB 484157A GB 2933036 A GB2933036 A GB 2933036A GB 2933036 A GB2933036 A GB 2933036A GB 484157 A GB484157 A GB 484157A
Authority
GB
United Kingdom
Prior art keywords
condenser
valve
current
circuit
voltage
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
GB2933036A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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
Priority to DET2462D priority Critical patent/DE866074C/en
Priority to DET2247D priority patent/DE872388C/en
Priority to DET2463D priority patent/DE872389C/en
Priority to FR810600D priority patent/FR810600A/en
Priority to US101781A priority patent/US2168403A/en
Application filed by Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Priority to GB2933036A priority patent/GB484157A/en
Publication of GB484157A publication Critical patent/GB484157A/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
    • 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
    • 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
    • H03K4/28—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 a switching device
    • 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
    • H03K4/28—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 a switching device
    • H03K4/32—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 a switching device combined with means for generating the driving pulses
    • H03K4/34—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 a switching device combined with means for generating the driving pulses using a single tube with positive feedback through a transformer

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Treatment Devices (AREA)

Abstract

484,157. Valve generating circuits. GEIGER, M., and TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Oct. 28, 1936, No. 29330. [Class 40 (v)] A saw-tooth oscillator comprises a switching- device, such as a thermionic valve 19, Fig. 4, for interrupting a current through an inductance coil 18, the resulting voltage being applied through a step-down transformer to charge a condenser 16 rapidly through a unilateral conductor 15, and the condenser being discharged slowly through a shunt resistance 17. The interruptions are effected by negative pulses applied to the grid of the valve 19, and at each interruption oscillations tend to be set up in the circuit 18, 16. Owing however to the unilateral conductor 15, the oscillation cannot proceed beyond the stage of charging the condenser 16, and this charge gradually leaks away across the resistance 17 to provide the slow sawtooth stroke. The condenser may be coupled to the coil 18 by an auto-transformer tapping, or by separate coils. The condenser 16 may be replaced by two condensers in series with their junction connected to a point of fixed voltage, to provide symmetrical scanning- voltages, Fig. 5 (not shown). As shown in Fig. 6, the voltage across the condenser 16 is fed into the grid circuit of the valve 19 in series with the trigging impulse with the result that a saw-tooth current is developed in the plate circuit of the valve, which current may be used for electromagnetic scanning.
GB2933036A 1935-09-26 1936-10-28 Improvements in or relating to electric oscillatory circuits Expired GB484157A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DET2462D DE866074C (en) 1935-09-26 1935-09-26 Circuit arrangement for generating sawtooth-like curve shapes
DET2247D DE872388C (en) 1935-09-26 1935-09-26 Circuit for generating sawtooth-like curve shape
DET2463D DE872389C (en) 1935-09-26 1935-09-26 Circuit arrangement for generating sawtooth-like voltages
FR810600D FR810600A (en) 1935-09-26 1936-09-14 Mounting system to obtain characteristic sawtooth curves
US101781A US2168403A (en) 1935-09-26 1936-09-21 Saw-tooth wave generator
GB2933036A GB484157A (en) 1936-10-28 1936-10-28 Improvements in or relating to electric oscillatory circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2933036A GB484157A (en) 1936-10-28 1936-10-28 Improvements in or relating to electric oscillatory circuits

Publications (1)

Publication Number Publication Date
GB484157A true GB484157A (en) 1938-04-28

Family

ID=10289838

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2933036A Expired GB484157A (en) 1935-09-26 1936-10-28 Improvements in or relating to electric oscillatory circuits

Country Status (1)

Country Link
GB (1) GB484157A (en)

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