Gating circuit for thyristor deflection system

Details Gating circuit for thyristor deflection system Gating circuit for thyristor deflection system

1974-10-21

1976-11-23

Wilbur, Maynard R.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

H01J 2970

Patent

active

039939316

ABSTRACT:
A gating circuit for a deflection system which includes a first switch which is coupled to a deflection winding for supplying energy to the deflection winding during a trace interval of each deflection cycle. A commutating network including a second switch is coupled to the deflection winding and supplies energy to the deflection winding during a commutating interval of each deflection cycle. A coupling network couples a first polarity portion of gating signals developed by the commutating network to the first switch during the trace interval to enable conduction of the first switch. The coupling network also provides a second polarity portion of the gating signals to the first switch during the commutating interval to enable the turn off of the first switch.

REFERENCES:
patent: 3452244 (1969-06-01), Dietz
patent: 3517253 (1970-06-01), Dietz
patent: 3638067 (1972-01-01), Dietz
patent: 3767960 (1973-10-01), Ahrens
patent: 3767963 (1973-10-01), McArdle

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