GB516357A - Improvements in generators of electrical oscillations of saw-toothed wave form - Google Patents

Improvements in generators of electrical oscillations of saw-toothed wave form

Info

Publication number
GB516357A
GB516357A GB18376/38A GB1837638A GB516357A GB 516357 A GB516357 A GB 516357A GB 18376/38 A GB18376/38 A GB 18376/38A GB 1837638 A GB1837638 A GB 1837638A GB 516357 A GB516357 A GB 516357A
Authority
GB
United Kingdom
Prior art keywords
grid
condenser
current
valve
potential
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
GB18376/38A
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
Application filed by Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB516357A publication Critical patent/GB516357A/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
    • H03K4/16—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 single tube with positive feedback through transformer, e.g. blocking oscillator
    • 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)
  • X-Ray Techniques (AREA)
  • Control Of Charge By Means Of Generators (AREA)

Abstract

516,357. Valve generating circuits. TELEFUNKEN GES. FœR DRAHTLOSE TELEGRAPHIE. June 21, 1938, No. 18376. Convention date June, 21, 1937. [Class 40(v)] In a back-coupled oscillator in which the rate of flow through a grid-controlled electron discharge valve is periodically changed by negatively charging a condenser in the grid circuit through a rectifier and an inductance reactively coupled with the valve anode, a current-limiting impedance 17 is arranged in series with the control grid for restricting the potential to which the grid can be raised. The condenser 11 is charged slowly from battery 16 through impedance 15, and anode current flows at a slowly-increasing rate. When a synchronising pulse is received on an additional grid of valve 10, or when the voltage across the condenser exceeds that across coil 12, the condenser 11 and the magnetic energy of coil 14 discharge rapidly through rectifier 13, so that condenser 11 is charged in the opposite sense and the cycle then repeats. Normally grid current flows when the grid potential exceeds the cathode potential, and this varies the rate of charge of condenser 11. To prevent this a current-limiting impedance 17 is provided which maintains the grid potential practically constant after grid current starts and the anode current remains steady. Saw-tooth potentials are produced across condenser 11, whilst saw-tooth current flows in coil 12.
GB18376/38A 1937-06-21 1938-06-21 Improvements in generators of electrical oscillations of saw-toothed wave form Expired GB516357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE516357X 1937-06-21

Publications (1)

Publication Number Publication Date
GB516357A true GB516357A (en) 1940-01-01

Family

ID=6549209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18376/38A Expired GB516357A (en) 1937-06-21 1938-06-21 Improvements in generators of electrical oscillations of saw-toothed wave form

Country Status (2)

Country Link
US (1) US2220712A (en)
GB (1) GB516357A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442769A (en) * 1942-12-30 1948-06-08 Sperry Corp Electronic delay circuits
NL132117C (en) * 1946-05-10
NL70437C (en) * 1947-08-15
US3200261A (en) * 1961-11-21 1965-08-10 Gen Telephone & Elect Blocking oscillator

Also Published As

Publication number Publication date
US2220712A (en) 1940-11-05

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