Dynamic focus voltage with phase compensated adjustment

Details Dynamic focus voltage with phase compensated adjustment Dynamic focus voltage with phase compensated adjustment

1986-08-26

1987-11-17

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315411, 358218, H01J 2958, H01J 2970, H04N 5228

Patent

active

047076399

ABSTRACT:
An attenuator couples a parabolic voltage developed in a trace capacitance, to a focus electrode. The attenuator includes a phase compensation network that causes the phase of the parabolic voltage that is coupled to the focus electrode to be substantially the same relative to that of the parabolic voltage in the trace capacitor for any scan frequency that is selected from a range of frequencies.

REFERENCES:
patent: 4587465 (1986-05-01), Truskalo
An operating manual of VR-series display monitors of Moniterm Corporation, Eden Praire, Minnesota.

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