Improvements in a Circuit correccionnorte South of the cushion form of convergence of a Cathode Ray Tube

摘要

Geometric Distortion Correction Circuit North South Convergence of a Cathode Ray Tube.The Circuit comprises a Winding deflection field with its corresponding Amplifier, signal generation means of input frequencies and field Line, with a Winding coupled to the LC Circuit and a switching Amplifier which is coupling a Circuit control.The LC Circuit, Resonant, excited at the Line Frequency to modulate the flow deflection Field. The capacitor of this circuit is coupled to the first Winding of a Transformer, which is connected to the second switching amplifier.The inductance of the Transformer is adjustable to control the phase of the Line Frequency Modulation of the deflection current Field. Generally, the input Signal Frequency field is a Saw Tooth. Application to Video Screens with non spherical shape.