CIRCUIT FOR ELIMINATING RADIATED ELECTRIC FIELD NOISE IN A VIDEO DISPLAY.

摘要

The present invention refers to a circuit for eliminating radiated electric field noise in a video display, which can completely compensate for noise in radiation electric field generated at the CRT front surface when variably adjusting and applying a wave-shaped signal, an amplitude and phase, which are opposed to those of the noise from the radiation electric field formed on the CRT front surface. The Circuit to eliminate noise from the radiation electric field according to the present invention, includes a high voltage undulating compensation section, including a cylindrical core, wherein a FBT high voltage guide cable passes through the cylindrical core, to eliminate a high voltage undulating component applied to the CRT anode, according to the negative polarity pulse signal from the FBT induction coil, and a compensation section for the radiated electric field noise generated from the front surface of the CRT through application of a negative polarity pulse signal to the periphery of said CRT.