Switched mode vertical amplifier with elimination of...

Details Switched mode vertical amplifier with elimination of... Switched mode vertical amplifier with elimination of...

H - Electricity

01

J

350/101

H01J 29/56 (2006.01) H03K 4/83 (2006.01)

Patent

CA 1093683

RCA 70629 SWITCHED MODE VERTICAL AMPLIFIER WITH ELIMINATION OF FEEDBACK RINGING Abstract of the Disclosure A capacitor is coupled to a vertical deflection winding for forming a resonant circuit therewith during retrace. A switched mode vertical deflection amplifier generates trace current in the deflection winding. A feedback resistor samples the current in the deflection winding and provides a feedback voltage to the amplifier. In order to substantially diminish a ringing component of the trace current at the beginning of trace, a cancellation circuit provides the amplifier with a voltage which cancels the feedback voltage during at least the latter portion of retrace. -1-

273584

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