FR2459583A1 - Perfectionnement aux generateurs de tension en dents de scie pour le balayage d'un ecran de television - Google Patents

Perfectionnement aux generateurs de tension en dents de scie pour le balayage d'un ecran de television Download PDF

Info

Publication number
FR2459583A1
FR2459583A1 FR7915660A FR7915660A FR2459583A1 FR 2459583 A1 FR2459583 A1 FR 2459583A1 FR 7915660 A FR7915660 A FR 7915660A FR 7915660 A FR7915660 A FR 7915660A FR 2459583 A1 FR2459583 A1 FR 2459583A1
Authority
FR
France
Prior art keywords
capacitor
voltage
threshold
passage
black
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.)
Granted
Application number
FR7915660A
Other languages
English (en)
French (fr)
Other versions
FR2459583B1 (https=
Inventor
Jean-Michel Moreau
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.)
Thales SA
Original Assignee
Thomson CSF 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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7915660A priority Critical patent/FR2459583A1/fr
Priority to DE19803022727 priority patent/DE3022727A1/de
Priority to IT12573/80A priority patent/IT1133446B/it
Publication of FR2459583A1 publication Critical patent/FR2459583A1/fr
Application granted granted Critical
Publication of FR2459583B1 publication Critical patent/FR2459583B1/fr
Granted 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
    • H03K4/50—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 voltage is produced across a capacitor
    • H03K4/501—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 voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator
    • H03K4/502—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 voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator the capacitor being charged from a constant-current source
    • 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
    • H04N3/24—Blanking circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)
FR7915660A 1979-06-19 1979-06-19 Perfectionnement aux generateurs de tension en dents de scie pour le balayage d'un ecran de television Granted FR2459583A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7915660A FR2459583A1 (fr) 1979-06-19 1979-06-19 Perfectionnement aux generateurs de tension en dents de scie pour le balayage d'un ecran de television
DE19803022727 DE3022727A1 (de) 1979-06-19 1980-06-18 Generator fuer die saegezahn-ablenkspannung fuer einen fernsehbildschirm
IT12573/80A IT1133446B (it) 1979-06-19 1980-06-18 Perfezionamenti ai generatori di tensione a denti di sega per la scansione di uno schermo televisio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7915660A FR2459583A1 (fr) 1979-06-19 1979-06-19 Perfectionnement aux generateurs de tension en dents de scie pour le balayage d'un ecran de television

Publications (2)

Publication Number Publication Date
FR2459583A1 true FR2459583A1 (fr) 1981-01-09
FR2459583B1 FR2459583B1 (https=) 1983-03-04

Family

ID=9226785

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7915660A Granted FR2459583A1 (fr) 1979-06-19 1979-06-19 Perfectionnement aux generateurs de tension en dents de scie pour le balayage d'un ecran de television

Country Status (3)

Country Link
DE (1) DE3022727A1 (https=)
FR (1) FR2459583A1 (https=)
IT (1) IT1133446B (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069165B1 (de) * 1981-07-08 1984-08-08 Deutsche ITT Industries GmbH Integrierte Schaltung für (Farb-)Fernsehgeräte
DE4238615C1 (de) * 1992-11-16 1993-11-25 Telefunken Microelectron Verfahren und Schaltungsanordnung zur Erzeugung eines Rücklaufimpulses für die Rücklaufaustastung eines Bildwiedergabegerätes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1165658B (de) * 1962-07-10 1964-03-19 Siemens Ag Schaltungsanordnung zur Umsetzung einer Gleichspannung in eine Impulsfolge mit von der Hoehe der Gleichspannung abhaengiger Frequenz
FR1564005A (https=) * 1968-03-06 1969-04-18
DE2533599A1 (de) * 1975-07-26 1977-02-03 Philips Patentverwaltung Ablenk-schaltungsanordnung mit austastimpuls

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1165658B (de) * 1962-07-10 1964-03-19 Siemens Ag Schaltungsanordnung zur Umsetzung einer Gleichspannung in eine Impulsfolge mit von der Hoehe der Gleichspannung abhaengiger Frequenz
FR1564005A (https=) * 1968-03-06 1969-04-18
DE2533599A1 (de) * 1975-07-26 1977-02-03 Philips Patentverwaltung Ablenk-schaltungsanordnung mit austastimpuls

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/77 *

Also Published As

Publication number Publication date
IT8012573A0 (it) 1980-06-18
FR2459583B1 (https=) 1983-03-04
IT1133446B (it) 1986-07-09
DE3022727A1 (de) 1981-01-22

Similar Documents

Publication Publication Date Title
FR2634293A2 (fr) Systeme de regulation du point de fonctionnement d'une alimentation a courant continu en zone de caracteristique generateur de tension ou de courant imposee
EP0493238A1 (fr) Circuit de protection contre les court-circuits pour un interrupteur électronique
FR2743953A1 (fr) Circuit d'alimentation a condensateur de stockage
FR2614432A1 (fr) Detecteur de proximite inductif
EP0037315A1 (fr) Dispositif de commande des variations dans le temps de la puissance d'une installation d'éclairage en fonction d'un programme pré-établi
FR2459583A1 (fr) Perfectionnement aux generateurs de tension en dents de scie pour le balayage d'un ecran de television
FR2544802A1 (fr) Dispositif de commande de reglage d'allumage pour moteurs a combustion interne
FR2768573A1 (fr) Circuit generateur de tension du type pompe de charge, avec circuit de commande auto-oscillant
EP0021867B1 (fr) Dispositif d'alimentation à découpage régulé contre les variations de tension d'entrée et de puissance de sortie, notamment pour récepteur de télévision
EP0011533B1 (fr) Circuit générateur de dents de scie permettant notamment un balayage cathodique du type ligne par ligne, et dispositif comportant un tel circuit
FR2490895A1 (fr) Circuit d'entretien pour oscillateur a faible consommation de courant
EP0424280B1 (fr) Circuit électronique de commande d'un moteur vibrant alimenté en courant continu
EP0296989B1 (fr) Dispositif de réglage des fréquences minimale et maximale d'un signal vidéo modulé en fréquence
EP0007866B1 (fr) Circuit d'alimentation stabilisée d'un récepteur vidéofréquence, et récepteur comportant un tel circuit
EP0356337B1 (fr) Dispositif de protection d'un modulateur à ligne à retard
CH682019A5 (en) Amplitude control circuit for oscillator circuit - includes current sources and current mirror in circuit to limit final output voltage of oscillator control circuit
FR2501945A1 (fr) Circuit servant a deduire un signal de synchronisation de trame d'un signal incident
FR2672448A1 (fr) Circuit d'alimentation d'une charge en tension a partir d'une tension de source alternative et redressee.
EP0484256B1 (fr) Dispositif de commutation d'une bobine
FR2573937A1 (fr) Regulateur pseudo-continu pour dispositif de regulation ou de commande notamment pour une regulation de pression
FR2753327A1 (fr) Circuit de traitement de signaux de synchronisation verticale comprenant un circuit de detection de polarite
FR2529038A1 (fr) Circuit generateur d'impulsions
FR2753326A1 (fr) Dispositif de detection de verrouillage d'un circuit de controle automatique de gain
EP1492392B1 (fr) Appareil de variation de la puissance moyenne d'alimentation d'une charge en courant alternatif
EP0439382B1 (fr) Procédé et dispositif de limitation de courant d'un tube cathodique

Legal Events

Date Code Title Description
ST Notification of lapse