Patent ID: 6479953
Filing Date: 2002-11-12
Classification: H04N

Abstract:
A video display deflection apparatus, comprising:a first retrace capacitance; a second retrace capacitance; a deflection winding coupled to said first and second retrace capacitances to form a resonant circuit with said first and second retrace capacitances, during retrace; a first switching transistor coupled to said first retrace capacitance for generating a first retrace pulse voltage in said resonant circuit; and a second switching transistor coupled to said second retrace capacitance for generating a second retrace pulse voltage in said second retrace capacitance, said first and second retrace pulse voltages being applied to said deflection winding in a manner to provide for retrace capacitance transformation, said second switching transistor being responsive to a timing signal produced by said first switching transistor for controlling, in accordance with said timing signal, a switching of frequencies of said second switching transistor.