Television – Cathode-ray tube display beam current control
Patent
1995-06-23
1997-10-21
Kostak, Victor R.
Television
Cathode-ray tube display beam current control
348707, 315387, H04N 568
Patent
active
056801734
ABSTRACT:
A complementary push-pull emitter follower amplifier is coupled between the output of a high voltage driver amplifier and the cathode of a kinescope for reducing the effective capacitance presented to the driver amplifier that is attributable to the kinescope cathode, socket, spark gaps and related stray capacitances. A secondary undesired capacitance loading of the amplifier attributable to the collector to base capacitances of the follower amplifier is effectively reduced by regulating the collector emitter voltages of the push-pull follower output transistors at respective substantially constant values thereby improving parameters such as the slew rate and bandwidth of the overall video display system.
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Radio Fernsehen Electronik, vol. 42, No. 7, Jul. 1, 1993, pp. 47-49, Kuehne H., "Untersuchung des Brietband-OTA LT1228" (with translation).
Copy of European Search Report for Corresponding EPO Application.
Lendaro Jeffery Basil
White Charles Michael
Coalter Richard G.
Emanuel Peter M.
Kostak Victor R.
Thomson Consumer Electronics Inc.
Tripoli Joseph S.
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