GB1254205A - Line deflection circuit for a cathode ray tube - Google Patents

Line deflection circuit for a cathode ray tube

Info

Publication number
GB1254205A
GB1254205A GB907669A GB907669A GB1254205A GB 1254205 A GB1254205 A GB 1254205A GB 907669 A GB907669 A GB 907669A GB 907669 A GB907669 A GB 907669A GB 1254205 A GB1254205 A GB 1254205A
Authority
GB
United Kingdom
Prior art keywords
sweep
transistors
capacitor
ray tube
deflection circuit
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
GB907669A
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.)
JAN WESSELS RADIOFABRIKK RADIO
Original Assignee
JAN WESSELS RADIOFABRIKK RADIO
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 JAN WESSELS RADIOFABRIKK RADIO filed Critical JAN WESSELS RADIOFABRIKK RADIO
Publication of GB1254205A publication Critical patent/GB1254205A/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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)
  • Rectifiers (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

1,254,205. Transistor sawtooth circuits. JAN WESSELS RADIOFABRIKK RADIONETTE A/S. 19 Feb., 1969 [24 Feb., 1968], No. 9076/69. Heading H3T. A line deflection circuit for a cathode-ray tube comprises a pair of series-connected transistors T 1 , T 2 connected via an inductor or transformer 4 across a D.C. supply 3, a deflection coil 5 in series with a blocking capacitor 6 and being tuned by capacitor 7 being connected across one of the transistors. As described, transistors T 1 , T 2 are turned on during the second part of each sweep by pulses from a source 1, and turned off at the end of each sweep so that the energy in the deflection coil 5 is resonantly transferred to capacitor 7. After one-half cycle, diode 11 becomes conductive so that a linear build up of current occurs in coil 5, forming the beginning of the next sweep. A feedback loop 9 is provided to alter the conductive period of T 1 (relative to that of T 2 ) and so maintain the sweep amplitude constant. Diodes 11 and 12 may be replaced by the base-collector junction of T 2 .
GB907669A 1968-02-24 1969-02-19 Line deflection circuit for a cathode ray tube Expired GB1254205A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO68068A NO122709B (en) 1968-02-24 1968-02-24

Publications (1)

Publication Number Publication Date
GB1254205A true GB1254205A (en) 1971-11-17

Family

ID=19877752

Family Applications (1)

Application Number Title Priority Date Filing Date
GB907669A Expired GB1254205A (en) 1968-02-24 1969-02-19 Line deflection circuit for a cathode ray tube

Country Status (2)

Country Link
GB (1) GB1254205A (en)
NO (1) NO122709B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2397753A1 (en) * 1977-07-14 1979-02-09 Sony Corp CURRENT CONTROL CIRCUIT IN A COIL
FR2421514A1 (en) * 1978-03-27 1979-10-26 Sony Corp CURRENT CONTROL CIRCUIT THROUGH A COIL

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2397753A1 (en) * 1977-07-14 1979-02-09 Sony Corp CURRENT CONTROL CIRCUIT IN A COIL
FR2421514A1 (en) * 1978-03-27 1979-10-26 Sony Corp CURRENT CONTROL CIRCUIT THROUGH A COIL

Also Published As

Publication number Publication date
DE1908276A1 (en) 1969-09-25
DE1908276B2 (en) 1970-09-17
NO122709B (en) 1971-08-02

Similar Documents

Publication Publication Date Title
US3070727A (en) Transistor circuit for applying sawtooth currents to an inductance
ES367453A1 (en) Voltage regulator
ES370656A1 (en) Thyristor controlled power supply circuits and deflection circuitry associated with a kinescope
GB1254205A (en) Line deflection circuit for a cathode ray tube
GB1075093A (en) Waveform generator circuits for television receivers
GB1158414A (en) Television Deflection Power Recovery Circuit
GB1073608A (en) Linearity correction circuits for cathode ray devices
GB1529194A (en) Sawtooth current generators
GB1179961A (en) Television Deflection Circuit.
GB1151714A (en) Electron Beam Deflection and Low Voltage Supply Circuit
GB1157725A (en) Transistor Deflection Circuits for use with Cathode Ray Tubes
GB1091928A (en) Electrical deflection circuits for cathode ray tubes
GB1187500A (en) Horizontal Deflection Circuits for Cathode Ray Tubes
GB1108173A (en) Improvements in or relating to scanning circuit arrangements for magnetically deflected television and other cathode ray tubes
GB1234217A (en)
GB1220360A (en) Horizontal deflection circuit for cathode ray tube
SU466612A1 (en) Frame Sweep Generator
GB1026137A (en) Circuit arrangement for generating a sawtooth current in an inductive load
US3189756A (en) Waveform generator
GB995418A (en) Improvements relating to circuits for generating sawtooth waveform currents
US3780338A (en) Deflection system for color-television tube
ES371521A1 (en) Eht supply particularly for television receivers
GB1144186A (en) Improvements in scanning circuits for cathode-ray tubes
SU1637027A1 (en) Line sweep generator
GB1185142A (en) Vertical Deflection Circuit with High Linearity