公开(公告)号：DE3608597A1

公开(公告)日：1986-09-25

申请号：DE3608597

申请日：1986-03-14

Applicant: RCA CORP

Inventor： HOOVER ALAN ANDERSON ,  LUZ DAVID WARREN ,  LENDARO JEFFREY BASIL

IPC: H04N9/31 ,  H04N3/22 ,  H04N3/237 ,  H04N9/28 ,  H04N3/23 ,  H04N3/26

Abstract: A television apparatus, for generating a deflection rate parabolic auxiliary deflection current that corrects convergence distortions, includes a deflection generator output stage coupled to a deflection winding. The deflection generator output stage generates a trace scanning current during a trace interval. The primary winding of a transformer is coupled in a current path of the trace current. A parabolic voltage developing capacitance is coupled across a first secondary winding of the transformer. The trace scanning current in the primary winding of the transformer causes a deflection rate parabolic voltage to develop across a second secondary winding of the transformer. The parabolic voltage across a second secondary winding of the transformer is used for generating the convergence distortion correction current.