High voltage stabilization circuit for video display apparatus

Details High voltage stabilization circuit for video display apparatus High voltage stabilization circuit for video display apparatus

H - Electricity

04

N

350/108

H04N 3/18 (2006.01) H04N 3/185 (2006.01)

Patent

CA 2040253

ABSTRACT A horizontal deflection circuit output stage generates a retrace pulse in a tertiary winding of a flyback transformer. A flyback pulse that is substantially wider than the retrace pulse is produced in a winding of a second transformer that is coupled in series with the tertiary winding such that the retrace pulse occurs when a peak portion of the flyback pulse is already relatively "flat". The amplitude of the flyback pulse is controlled in a negative feedback loop for stabilizing an ultor voltage.

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