METHOD AND DEVICE FOR LIMITING THE CURRENT OF A CATHODE-RAY TUBE DURING THE FRAME RETURN TIME

METHOD AND DEVICE FOR LIMITING THE CURRENT OF A CATHODE-RAY TUBE DURING THE FRAME RETURN TIME

A limiter device essentially includes a comparator connected to a capacitor charged by a current proportional to the beam current and short-circuited by pulses during one line just after the frame return pulses. This comparator receives a threshold voltage and its output is connected to a capacitor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PERY, ANTOINE, DOUZIECH, PATRICK
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:A limiter device essentially includes a comparator connected to a capacitor charged by a current proportional to the beam current and short-circuited by pulses during one line just after the frame return pulses. This comparator receives a threshold voltage and its output is connected to a capacitor connected to another reference voltage, and this comparator is validated by the frame return pulses.