GB542032A - Improvements in or relating to arrangements for generating oscillatory electric currents of saw-tooth wave form - Google Patents

Improvements in or relating to arrangements for generating oscillatory electric currents of saw-tooth wave form

Info

Publication number
GB542032A
GB542032A GB10610/40A GB1061040A GB542032A GB 542032 A GB542032 A GB 542032A GB 10610/40 A GB10610/40 A GB 10610/40A GB 1061040 A GB1061040 A GB 1061040A GB 542032 A GB542032 A GB 542032A
Authority
GB
United Kingdom
Prior art keywords
valve
load
transformer
voltage
tube
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
GB10610/40A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi 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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB542032A publication Critical patent/GB542032A/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
    • H03K4/26—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

Landscapes

  • Control Of Electrical Variables (AREA)
  • Details Of Television Scanning (AREA)

Abstract

542,032. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 20, 1940, No. 10610. Convention date; June 30, 1939. [Class 40 (v)] In circuits for generating saw-tooth currents in an inductive load, particularly those of the kind described in Specification 400,976 in which the return stroke is effected by virtue of the reactive properties of the load which is shunted by a damping tube, the wave-form is improved by varying the impedance of the damping tube in accordance with the output of the generator. The current from the valve 1 divides between the load 2 and the tube 3, the impedance of which is varied by the voltage across a resistance 6 through which the total alternating current output of the valve passes. The current through the tube 3 may be controlled by a biasing voltage developed across the network 13, 14. In modification (1) the valve 1 may be connected through a transformer to the load and damping tube, the impedance of the latter being determined (a) by the voltage across a resistance in the primary circuit of the transformer, Figs. 2 and 5 (not shown), or (b) by the voltage across a resistance in the cathode circuit of the valve, Fig. 4 (not shown) ; (2) the damping tube may lie across the primary circuit of the transformer and the load in the secondary circuit, Fig. 3 (not shown); (3) the load may be connected directly to the valve, the damping tube being connected through a transformer, Fig. 5 (not shown). The valve 1 may be supplied with an input voltage of a slightly logarithmic wave form.
GB10610/40A 1939-06-30 1940-06-20 Improvements in or relating to arrangements for generating oscillatory electric currents of saw-tooth wave form Expired GB542032A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US282276A US2280733A (en) 1939-06-30 1939-06-30 Deflecting circuits

Publications (1)

Publication Number Publication Date
GB542032A true GB542032A (en) 1941-12-23

Family

ID=23080782

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10610/40A Expired GB542032A (en) 1939-06-30 1940-06-20 Improvements in or relating to arrangements for generating oscillatory electric currents of saw-tooth wave form

Country Status (2)

Country Link
US (1) US2280733A (en)
GB (1) GB542032A (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521741A (en) * 1950-09-12 Deflection circuit
BE445079A (en) * 1941-04-03
GB565099A (en) * 1943-03-17 1944-10-26 Bertram Morton Hadfield Improvements in or relating to alternating current generators whose frequency is proportional to and controlled by a direct current
US2440786A (en) * 1943-06-30 1948-05-04 Rca Corp Cathode-ray beam deflecting circuits
US2495115A (en) * 1943-11-30 1950-01-17 Gen Electric Keyed oscillator circuit
US2466784A (en) * 1945-01-13 1949-04-12 Rca Corp Cathode-ray beam deflecting circuit
US2460601A (en) * 1945-01-18 1949-02-01 Rca Corp Cathode-ray tube deflecting system
US2478606A (en) * 1945-03-14 1949-08-09 Rca Corp Electromagnetic deflection generator
US2485569A (en) * 1945-03-15 1949-10-25 Francis T Coughlin Method of and apparatus for compensating for residual magnetization in cathode-ray apparatus
US2451026A (en) * 1945-10-02 1948-10-12 Rca Corp Television system
US2476854A (en) * 1945-10-02 1949-07-19 Rca Corp Transformer
US2579633A (en) * 1946-03-01 1951-12-25 Le Roy J Wadzinski Variload and varibias circuits
US2597092A (en) * 1946-09-19 1952-05-20 Motorola Inc Vertical sweep generator
US2579014A (en) * 1947-12-04 1951-12-18 Motorola Inc Saw-tooth current generator
BE487602A (en) * 1948-02-28
NL75718C (en) * 1948-07-09 1954-08-16
US2505732A (en) * 1948-07-31 1950-04-25 Rca Corp Signal translating system
US2587420A (en) * 1948-08-31 1952-02-26 Rca Corp Linearity control for cathode-ray tubes
US2552357A (en) * 1948-08-31 1951-05-08 Rca Corp Registration of scanning patterns of cathode-ray tubes
US2574732A (en) * 1949-04-01 1951-11-13 Rca Corp Automatic control for wave forms
US2536838A (en) * 1949-05-24 1951-01-02 Rca Corp High-efficiency cathode-ray beam deflection system
NL83733C (en) * 1949-11-30
US2654854A (en) * 1950-12-22 1953-10-06 Rca Corp Image registration in color television systems or the like
US2644105A (en) * 1952-01-30 1953-06-30 Motorola Inc Television circuit
US2774911A (en) * 1954-02-08 1956-12-18 Int Standard Electric Corp Circuit arrangement for the generation of saw-tooth shaped deflecting currents

Also Published As

Publication number Publication date
US2280733A (en) 1942-04-21

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