High voltage system

Details High voltage system High voltage system

1996-12-19

1999-08-31

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315411, G09G 104, H01J 2970

Patent

active

059457910

ABSTRACT:
A sample of the high voltage retrace pulse is modeled across the series connection of a coil and low voltage winding of the flyback transformer. The AC current of the high voltage winding is fed through the coil in order to obtain the same retrace voltage shape as across the high voltage winding. Thus in this manner modeled high voltage retrace pulse is rectified by a diode and a charge capacitor. The rectified voltage is loaded by the beam current by a load resistor. The loading produces excellent tracking between the high voltage and the high voltage sample.

REFERENCES:
patent: 4184104 (1980-01-01), Shouse, Jr.
patent: 4206388 (1980-06-01), Ishigaki et al.
patent: 4645984 (1987-02-01), Sutherland et al.
patent: 4827194 (1989-05-01), Fernsler
patent: 5019754 (1991-05-01), Onozawa et al.
patent: 5266871 (1993-11-01), Haferl
patent: 5399945 (1995-03-01), Haferl

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