IT1250203B - Dispositivo di controllo della linearita' in stadi di deflessione orizzontale - Google Patents

Dispositivo di controllo della linearita' in stadi di deflessione orizzontale

Info

Publication number
IT1250203B
IT1250203B ITTO910579A ITTO910579A IT1250203B IT 1250203 B IT1250203 B IT 1250203B IT TO910579 A ITTO910579 A IT TO910579A IT TO910579 A ITTO910579 A IT TO910579A IT 1250203 B IT1250203 B IT 1250203B
Authority
IT
Italy
Prior art keywords
yoke
yoke current
capacitor
control device
horizontal deflection
Prior art date
Application number
ITTO910579A
Other languages
English (en)
Inventor
Mauro Merlo
Silvano Gornati
Original Assignee
St Microelectronics Srl
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 St Microelectronics Srl filed Critical St Microelectronics Srl
Priority to ITTO910579A priority Critical patent/IT1250203B/it
Publication of ITTO910579A0 publication Critical patent/ITTO910579A0/it
Priority to EP92112117A priority patent/EP0528176B1/en
Priority to DE69222495T priority patent/DE69222495T2/de
Priority to US07/916,386 priority patent/US5416389A/en
Priority to JP19711892A priority patent/JP3268832B2/ja
Publication of ITTO910579A1 publication Critical patent/ITTO910579A1/it
Application granted granted Critical
Publication of IT1250203B publication Critical patent/IT1250203B/it

Links

Classifications

    • 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
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
    • H04N3/233—Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)

Abstract

In uno stadio (1) di deflessione orizzontale comprendente un giogo (6) di deflessione che è attraversato da una corrente di giogo (ig) controllata, da un interruttore (2, 4) ed è collegato in serie ad un condensatore (7) che varia la tensione sul giogo a seconda della fase della corrente di giogo (ig), il dispositivo (10) di controllo della linearità comprende un circuito (11, 12) di rilevamento della corrente di giogo (ig) che genera un segnale reale proporzionale alla corrente di giogo, un generatore di rampa (13-15) che genera un segnale di rampa ideale avente un andamento ad S desiderato nei tratti crescenti, un amplificatore d'errore (16), ricevente il segnale reale ed il segnale di rampa ideale e generante un segnale di errore utilizzato per pilotare un transistore di potenza (17) collegato con i suoi terminali di emettitore e collettore in parallelo al condensatore (7) per modificare la tensione esistente sul condensatore stesso e per far assumere alla corrente nel giogo l'andamento desiderato.Figura 3
ITTO910579A 1991-07-23 1991-07-23 Dispositivo di controllo della linearita' in stadi di deflessione orizzontale IT1250203B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITTO910579A IT1250203B (it) 1991-07-23 1991-07-23 Dispositivo di controllo della linearita' in stadi di deflessione orizzontale
EP92112117A EP0528176B1 (en) 1991-07-23 1992-07-15 Horizontal deflection stage linearity control device
DE69222495T DE69222495T2 (de) 1991-07-23 1992-07-15 Linearitätskontrollvorrichtung für Horizontalablenkstufe
US07/916,386 US5416389A (en) 1991-07-23 1992-07-20 Horizontal deflection stage linearity control device
JP19711892A JP3268832B2 (ja) 1991-07-23 1992-07-23 水平偏向段の直線性を制御する装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO910579A IT1250203B (it) 1991-07-23 1991-07-23 Dispositivo di controllo della linearita' in stadi di deflessione orizzontale

Publications (3)

Publication Number Publication Date
ITTO910579A0 ITTO910579A0 (it) 1991-07-23
ITTO910579A1 ITTO910579A1 (it) 1993-01-23
IT1250203B true IT1250203B (it) 1995-04-03

Family

ID=11409510

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO910579A IT1250203B (it) 1991-07-23 1991-07-23 Dispositivo di controllo della linearita' in stadi di deflessione orizzontale

Country Status (5)

Country Link
US (1) US5416389A (it)
EP (1) EP0528176B1 (it)
JP (1) JP3268832B2 (it)
DE (1) DE69222495T2 (it)
IT (1) IT1250203B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6013989A (en) * 1996-05-20 2000-01-11 Samsung Electronics Co., Ltd. Wide-band horizontal linearity correction circuit
JPH09331466A (ja) * 1996-06-11 1997-12-22 Sony Corp 水平直線性補正回路
US6124686A (en) * 1997-08-18 2000-09-26 Sony Corporation Horizontal deflection circuit
WO1999055077A1 (fr) * 1998-04-21 1999-10-28 Sony Corporation Circuit de deviation horizontal
US6552504B2 (en) 2000-08-25 2003-04-22 Thomson Licensing Sa Deflection circuit with a feedback controlled capacitive transformation
US6479953B2 (en) 2000-08-25 2002-11-12 Thomson Licensing S. A. Deflection circuit with a retrace capacitive transformation
KR100338782B1 (ko) 2000-10-16 2002-06-01 윤종용 원칩화된 영상 처리 장치에 적용하기 위한 플라이백 펄스폭 조정 회로 및 조정 방법
DE10153318A1 (de) * 2001-10-29 2003-05-08 Siemens Ag Verfahren und Schaltungsanordnung zum Betreiben einer Ablenkstufe einer Kathodenstrahlröhre

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796911A (en) * 1972-09-25 1974-03-12 Westinghouse Electric Corp Waveform correction for resonant recovery deflection systems
US3996611A (en) * 1974-09-25 1976-12-07 Aeronutronic Ford Corporation Cathode ray tube deflection circuit
US4188567A (en) * 1977-10-03 1980-02-12 Gte Sylvania Incorporated Constant-current vertical amplifier
US4297620A (en) * 1980-03-10 1981-10-27 Ampex Corporation Quasi feedback horizontal scan linearization for cathode ray tubes
US4302708A (en) * 1980-03-31 1981-11-24 Sperry Corporation Deflection amplifier system for raster scanned cathode ray tube displays
US4423358A (en) * 1982-04-23 1983-12-27 Rca Corporation Horizontal deflection circuit with linearity correction
JPS6423685A (en) * 1987-07-20 1989-01-26 Sony Corp Horizontal deflecting output circuit
JPH11104376A (ja) * 1997-09-30 1999-04-20 Brother Ind Ltd ミシン管理システム及び記録媒体

Also Published As

Publication number Publication date
EP0528176A1 (en) 1993-02-24
US5416389A (en) 1995-05-16
DE69222495D1 (de) 1997-11-06
JPH05207308A (ja) 1993-08-13
DE69222495T2 (de) 1998-02-05
ITTO910579A1 (it) 1993-01-23
ITTO910579A0 (it) 1991-07-23
EP0528176B1 (en) 1997-10-01
JP3268832B2 (ja) 2002-03-25

Similar Documents

Publication Publication Date Title
US4937468A (en) Isolation circuit for pulse waveforms
IT1250203B (it) Dispositivo di controllo della linearita' in stadi di deflessione orizzontale
GB1235500A (en) A voltage generator circuit for television receivers
KR900008835A (ko) 텔레비젼 장치 및 그 스위치 모드 전력원
MY110731A (en) Piecewise linearized focus voltage circuit for television apparatus.
EP0093447A2 (en) Magnetic deflection sweep amplifier with intelligent flyback
JPS6248944B2 (it)
KR20000068082A (ko) 자기 소호형 파워 소자를 구동하는 장치
US4323825A (en) Deflection system with positive feedback
FR2331203A1 (fr) Circuit pour engendrer un courant en dents de scie dans une bobine de deviation
GB1386231A (en) Waveform correction for resonant recovery deflection systems
KR870011778A (ko) 편향회로
SU1149431A1 (ru) Двухтактный генератор магнитной развертки
JPS54152912A (en) Deflection output circuit
SU1095403A1 (ru) Полупроводниковый ключ
SU589600A1 (ru) Импульсный стабилизатор посто нного напр жени
CN114300323B (zh) 一种通过脉宽调制脉冲快速控制电子束通断的方法
CN214311488U (zh) 一种恒流源
CN87213624U (zh) 高压连续可调电源
EP0366130A3 (en) Linear deflection amplifier with energy recovery
SU794724A1 (ru) Генератор магнитной развертки
CN115166294A (zh) 一种超声波驱动电路及超声波流速监测仪
KR850008077A (ko) 콘버어전스 회로
SU670080A1 (ru) Автоматическа система удержани плазменного шнура
SU1023576A1 (ru) Устройство дл управлени силовым магнитотранзисторным ключом

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970730