Method and device for limiting the current of a cathode-ray tube during the frame return time
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United States of America Patent
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-
Jul 28, 1992
Grant Date -
N/A
app pub date -
Jan 4, 1991
filing date -
Jan 16, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
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