GB1146356A - Improvements in magnetic scanning circuits for electron beam tubes - Google Patents

Improvements in magnetic scanning circuits for electron beam tubes

Info

Publication number
GB1146356A
GB1146356A GB3266366A GB3266366A GB1146356A GB 1146356 A GB1146356 A GB 1146356A GB 3266366 A GB3266366 A GB 3266366A GB 3266366 A GB3266366 A GB 3266366A GB 1146356 A GB1146356 A GB 1146356A
Authority
GB
United Kingdom
Prior art keywords
coils
deflection
sawtooth
pulses
autotransformer
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
GB3266366A
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Publication of GB1146356A publication Critical patent/GB1146356A/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
    • H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
    • H03K4/60—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor
    • H03K4/62—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor using a semiconductor device 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
    • H03K4/90—Linearisation of ramp; Synchronisation of pulses

Landscapes

  • Details Of Television Scanning (AREA)

Abstract

1,146,356. Transistor sawtooth circuits. COMPAGNIE FRANCAISE THOMSON HOUSTON - HOTCHKISS BRANDT. 20 July, 1966 [20 July, 1965], No. 32663/66. Heading H3T. In a magnetic deflection circuit for a cathoderay tube, of the type in which errors due to the resistance R of the deflection coils 4 are corrected by feeding an additional sawtooth waveform to the coils, the main deflection and additional deflection waveforms are coupled to the coils via a common autotransformer. As shown, sawtooth current in deflection coils 4 is initiated by pulses fed to the base of transistor T1, the resulting negative pulses at the collector being coupled by the autotransformer aTr. Pulses induced in an auxiliary winding n3 are integrated at 3 to provide a sawtooth waveform which is amplified by the feedback amplifier comprising transistors T2, T3 and fed via the autotransformer aTr to correct the error due to resistance R. The scan amplitude is adjustable by the biascontrolling potentiometer P1. In Fig. 2 (not shown) the tappings connecting transistors T1 and coils 4 are interchanged, the auxiliary sawtooth voltage being provided by integrating the pulses at the collector of T1.
GB3266366A 1962-05-28 1966-07-20 Improvements in magnetic scanning circuits for electron beam tubes Expired GB1146356A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR898933A FR1332609A (en) 1962-05-28 1962-05-28 Enhancements to Magnetic Scanning Circuits
FR25297A FR88389E (en) 1962-05-28 1965-07-20 Enhancements to Magnetic Scanning Circuits

Publications (1)

Publication Number Publication Date
GB1146356A true GB1146356A (en) 1969-03-26

Family

ID=26164895

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3266366A Expired GB1146356A (en) 1962-05-28 1966-07-20 Improvements in magnetic scanning circuits for electron beam tubes

Country Status (3)

Country Link
DE (1) DE1539791A1 (en)
FR (2) FR1332609A (en)
GB (1) GB1146356A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1281487B (en) * 1967-12-08 1968-10-31 Telefunken Patent Vertical deflection circuit, especially for a television receiver
US4297620A (en) * 1980-03-10 1981-10-27 Ampex Corporation Quasi feedback horizontal scan linearization for cathode ray tubes

Also Published As

Publication number Publication date
FR88389E (en) 1967-01-27
FR1332609A (en) 1963-07-19
DE1464497A1 (en) 1968-12-05
DE1464497B2 (en) 1971-02-04
DE1539791A1 (en) 1970-04-09

Similar Documents

Publication Publication Date Title
GB1202307A (en) A deflection circuit for a cathode ray tube
GB1060023A (en) Focusing circuit for cathode ray tube
GB1146356A (en) Improvements in magnetic scanning circuits for electron beam tubes
GB1261520A (en) Improvements in and relating to power supply arrangements for cathode ray tubes
GB1511899A (en) Television line deflection circuit
GB1045342A (en) Circuit arrangement for producing voltages of sawtooth waveform
GB1157725A (en) Transistor Deflection Circuits for use with Cathode Ray Tubes
US3403288A (en) Dynamic intensity corrections circuit
GB908755A (en) Improvements in or relating to circuit arrangements for dynamic focusing in cathode-ray tubes
GB1043376A (en) Circuit for controlling beam deflection in cathode ray tubes
GB1008998A (en) Dynamic focus circuit
GB1270342A (en) Beam deflection means for cathode ray tube systems
US3109122A (en) Deflection amplifier
US3706907A (en) Deflection circuit with means for generating correction waveform
GB1361756A (en) Linearity correction circuit suitable for cathode ray tubes
GB997222A (en) Improvements in and relating to cathode ray tube apparatus
JPS54152912A (en) Deflection output circuit
GB1220687A (en) Improvements in or relating to electro-magnetic deflection coil arrangements for cathode ray tubes
GB995418A (en) Improvements relating to circuits for generating sawtooth waveform currents
GB867281A (en) Improvements in or relating to deflection systems for cathode ray tubes
GB1174183A (en) Improvements in and relating to circuit arrangements for the correction of pin cushion distortion in display tubes
GB798776A (en) Focussing arrangements for cathode ray tubes
GB1126436A (en) Improvements in magnetic scanning circuits for electron beam tubes
GB915516A (en) Improvements relating to high tension generating circuits for cathode ray tubes
GB1215201A (en) Improvements in or relating to deflection circuit arrangements for cathode ray tubes