Centering circuit for a television deflection system

Details Centering circuit for a television deflection system Centering circuit for a television deflection system

1975-02-26

1977-07-19

Wilbur, Maynard R.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315408, H01J 2954

Patent

active

040371379

ABSTRACT:
A centering circuit comprising a non-symmetrical conduction network and an integrating inductor in series combination is coupled to a deflection system between the junction of the S-shaping capacitor and the deflection windings and the junction of a winding of the high voltage transformer and its associated coupling capacitor, these junction points providing a relatively small but adequate voltage difference to energize the centering circuit with minimum deflection system power dissipation. The non-symmetrical conduction network comprises two oppositely poled diodes and a potentiometer. The adjustment of the potentiometer provides for a change of the magnitude and polarity of the average current flowing through the deflection winding during the trace interval.

REFERENCES:
patent: 2935644 (1960-05-01), Leeds
patent: 3489948 (1970-01-01), Buechel
patent: 3733513 (1973-05-01), Yoshikawa et al.
patent: 3814981 (1976-11-01), Rusk

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